feat(android-release): derive Android version code from release tag

The release workflow now derives versionName and versionCode from the tag
and validates the tag format. It updates multiple project files in the
runner workspace without committing changes back to the repository.
A verification step ensures the generated Android properties are correct.

- Tag parsing validates vMAJOR.MINOR.PATCH and enforces minor/patch <= 999
- VersionCode computed as major*1e6 + minor*1e3 + patch and applied
- Added post-build verification of Android versionName and versionCode

.fdroid.yml

@@ -0,0 +1,44 @@
+Categories:
+  - Theming
+License: GPL-3.0-only
+AuthorName: Christoph
+WebSite: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper
+SourceCode: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper
+IssueTracker: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper/issues
+
+AutoName: WallpaperFlow
+
+RepoType: git
+Repo: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper.git
+
+Builds:
+  - versionName: 0.1.0
+    versionCode: 1000
+    commit: v0.1.0
+    ndk: 28.2.13676358
+    sudo:
+      - apt-get update
+      - apt-get install -y npm make gcc libc-dev
+    srclibs:
+      - rustup@1.28.2
+      - esbuild@v0.25.12
+    scandelete:
+      - node_modules
+    prebuild:
+      - npm ci --ignore-scripts
+      - $$rustup$$/rustup-init.sh -y --default-toolchain 1.95.0 --target aarch64-linux-android,armv7-linux-androideabi,i686-linux-android,x86_64-linux-android
+      - source $$HOME$$/.cargo/env
+      - cargo install tauri-cli --version 2.11.4 --locked
+      - pushd $$esbuild$$ && make esbuild && popd
+      - mv $$esbuild$$/esbuild node_modules/@esbuild/linux-x64/bin/esbuild
+    build:
+      - source $$HOME$$/.cargo/env
+      - export NDK_HOME=$$NDK$$
+      - export ANDROID_NDK_HOME=$$NDK$$
+      - cargo tauri android build --apk
+    output: src-tauri/gen/android/app/build/outputs/apk/universal/release/app-universal-release-unsigned.apk
+
+AutoUpdateMode: Version
+UpdateCheckMode: Tags
+CurrentVersion: 0.1.0
+CurrentVersionCode: 1000

.gitea/workflows/android-release.yml

@@ -0,0 +1,266 @@
+name: Android Release
+
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+
+jobs:
+  build-release-apk:
+    name: Build signed release APK
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    permissions:
+      code: read
+      releases: write
+    env:
+      ANDROID_COMPILE_SDK: "36"
+      ANDROID_BUILD_TOOLS: "36.0.0"
+      ANDROID_NDK_VERSION: "30.0.15729638"
+      ANDROID_KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
+      ANDROID_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+      ANDROID_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+      ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
+      GITEA_RELEASE_TOKEN: ${{ secrets.GITEA_TOKEN }}
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: npm
+
+      - name: Set up Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: "21"
+          cache: gradle
+
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@1.95.0
+        with:
+          targets: aarch64-linux-android,armv7-linux-androideabi,i686-linux-android,x86_64-linux-android
+
+      - name: Cache Rust build
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: src-tauri -> target
+
+      - name: Set up Android SDK
+        uses: android-actions/setup-android@v3
+
+      - name: Install Android SDK packages
+        run: |
+          yes | sdkmanager --licenses >/dev/null || true
+          sdkmanager \
+            "platforms;android-${ANDROID_COMPILE_SDK}" \
+            "build-tools;${ANDROID_BUILD_TOOLS}" \
+            "ndk;${ANDROID_NDK_VERSION}"
+          echo "NDK_HOME=${ANDROID_HOME}/ndk/${ANDROID_NDK_VERSION}" >> "${GITEA_ENV}"
+          echo "${ANDROID_HOME}/build-tools/${ANDROID_BUILD_TOOLS}" >> "${GITEA_PATH}"
+
+      - name: Install JavaScript dependencies
+        run: npm ci
+
+      - name: Apply version from release tag
+        run: |
+          if [ "${GITHUB_REF_TYPE}" != "tag" ]; then
+            echo "Release builds must run on a tag such as v0.1.0." >&2
+            exit 1
+          fi
+
+          RELEASE_VERSION="${GITHUB_REF_NAME#v}"
+          if [[ ! "${RELEASE_VERSION}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            echo "Tag ${GITHUB_REF_NAME} must use the format vMAJOR.MINOR.PATCH." >&2
+            exit 1
+          fi
+
+          IFS=. read -r VERSION_MAJOR VERSION_MINOR VERSION_PATCH <<< "${RELEASE_VERSION}"
+          if (( 10#${VERSION_MINOR} > 999 || 10#${VERSION_PATCH} > 999 )); then
+            echo "Minor and patch versions must not exceed 999." >&2
+            exit 1
+          fi
+          ANDROID_VERSION_CODE=$((10#${VERSION_MAJOR} * 1000000 + 10#${VERSION_MINOR} * 1000 + 10#${VERSION_PATCH}))
+          if (( ANDROID_VERSION_CODE < 1 || ANDROID_VERSION_CODE > 2100000000 )); then
+            echo "Derived Android versionCode ${ANDROID_VERSION_CODE} is outside the allowed range." >&2
+            exit 1
+          fi
+
+          RELEASE_VERSION="${RELEASE_VERSION}" \
+          ANDROID_VERSION_CODE="${ANDROID_VERSION_CODE}" \
+          GITHUB_REF_NAME="${GITHUB_REF_NAME}" \
+          node -e '
+            const fs = require("fs");
+            const version = process.env.RELEASE_VERSION;
+            const versionCode = process.env.ANDROID_VERSION_CODE;
+
+            function updateJson(path, update) {
+              const value = JSON.parse(fs.readFileSync(path, "utf8"));
+              update(value);
+              fs.writeFileSync(path, `${JSON.stringify(value, null, 2)}\n`);
+            }
+
+            updateJson("package.json", value => { value.version = version; });
+            updateJson("package-lock.json", value => {
+              value.version = version;
+              value.packages[""].version = version;
+            });
+            updateJson("src-tauri/tauri.conf.json", value => { value.version = version; });
+
+            const cargoTomlPath = "src-tauri/Cargo.toml";
+            const cargoToml = fs.readFileSync(cargoTomlPath, "utf8").replace(
+              /(\[package\][\s\S]*?\nversion = ")[^"]+("\n)/,
+              `$1${version}$2`
+            );
+            fs.writeFileSync(cargoTomlPath, cargoToml);
+
+            const cargoLockPath = "src-tauri/Cargo.lock";
+            const cargoLock = fs.readFileSync(cargoLockPath, "utf8").replace(
+              /(\[\[package\]\]\nname = "lockscreenwallpaper"\nversion = ")[^"]+("\n)/,
+              `$1${version}$2`
+            );
+            fs.writeFileSync(cargoLockPath, cargoLock);
+
+            const fdroidPath = ".fdroid.yml";
+            let fdroid = fs.readFileSync(fdroidPath, "utf8");
+            fdroid = fdroid
+              .replace(/^  - versionName: .*$/m, `  - versionName: ${version}`)
+              .replace(/^    versionCode: .*$/m, `    versionCode: ${versionCode}`)
+              .replace(/^    commit: .*$/m, `    commit: ${process.env.GITHUB_REF_NAME}`)
+              .replace(/^CurrentVersion: .*$/m, `CurrentVersion: ${version}`)
+              .replace(/^CurrentVersionCode: .*$/m, `CurrentVersionCode: ${versionCode}`);
+            fs.writeFileSync(fdroidPath, fdroid);
+          '
+
+          echo "RELEASE_VERSION=${RELEASE_VERSION}" >> "${GITEA_ENV}"
+          echo "ANDROID_VERSION_CODE=${ANDROID_VERSION_CODE}" >> "${GITEA_ENV}"
+          echo "Building ${GITHUB_REF_NAME} with Android versionCode ${ANDROID_VERSION_CODE}."
+
+      - name: Validate signing secrets
+        run: |
+          for SECRET_NAME in \
+            ANDROID_KEYSTORE_BASE64 \
+            ANDROID_KEYSTORE_PASSWORD \
+            ANDROID_KEY_ALIAS \
+            ANDROID_KEY_PASSWORD \
+            GITEA_RELEASE_TOKEN
+          do
+            if [ -z "${!SECRET_NAME:-}" ]; then
+              echo "Missing Gitea Actions secret: ${SECRET_NAME}" >&2
+              exit 1
+            fi
+          done
+
+      - name: Restore release keystore
+        run: |
+          SIGNING_DIRECTORY="${RUNNER_TEMP}/wallpaperflow-signing"
+          mkdir -p "${SIGNING_DIRECTORY}"
+          printf '%s' "${ANDROID_KEYSTORE_BASE64}" | base64 --decode > "${SIGNING_DIRECTORY}/release.jks"
+          chmod 600 "${SIGNING_DIRECTORY}/release.jks"
+          echo "ANDROID_SIGNING_KEYSTORE=${SIGNING_DIRECTORY}/release.jks" >> "${GITEA_ENV}"
+
+      - name: Build unsigned release APK
+        run: npm run tauri -- android build --apk --ci
+
+      - name: Verify generated Android version
+        run: |
+          TAURI_PROPERTIES="src-tauri/gen/android/app/tauri.properties"
+          grep -Fx "tauri.android.versionName=${RELEASE_VERSION}" "${TAURI_PROPERTIES}"
+          grep -Fx "tauri.android.versionCode=${ANDROID_VERSION_CODE}" "${TAURI_PROPERTIES}"
+
+      - name: Align and sign APK
+        run: |
+          UNSIGNED_APK="src-tauri/gen/android/app/build/outputs/apk/universal/release/app-universal-release-unsigned.apk"
+          RELEASE_DIRECTORY="release"
+          ALIGNED_APK="${RELEASE_DIRECTORY}/WallpaperFlow-release-aligned.apk"
+          SIGNED_APK="${RELEASE_DIRECTORY}/WallpaperFlow-release.apk"
+
+          test -f "${UNSIGNED_APK}"
+          mkdir -p "${RELEASE_DIRECTORY}"
+          zipalign -p -f 4 "${UNSIGNED_APK}" "${ALIGNED_APK}"
+          apksigner sign \
+            --ks "${ANDROID_SIGNING_KEYSTORE}" \
+            --ks-key-alias "${ANDROID_KEY_ALIAS}" \
+            --ks-pass env:ANDROID_KEYSTORE_PASSWORD \
+            --key-pass env:ANDROID_KEY_PASSWORD \
+            --out "${SIGNED_APK}" \
+            "${ALIGNED_APK}"
+          apksigner verify --verbose --print-certs "${SIGNED_APK}"
+          rm "${ALIGNED_APK}"
+          (cd "${RELEASE_DIRECTORY}" && sha256sum WallpaperFlow-release.apk > WallpaperFlow-release.apk.sha256)
+
+      - name: Attach APK to Gitea release
+        run: |
+          API_ROOT="${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}"
+          RELEASE_JSON="${RUNNER_TEMP}/wallpaperflow-release.json"
+          CREATE_JSON="${RUNNER_TEMP}/wallpaperflow-create-release.json"
+          ASSETS_JSON="${RUNNER_TEMP}/wallpaperflow-release-assets.json"
+
+          STATUS="$(curl --silent --show-error \
+            --output "${RELEASE_JSON}" \
+            --write-out '%{http_code}' \
+            --header "Authorization: token ${GITEA_RELEASE_TOKEN}" \
+            "${API_ROOT}/releases/tags/${GITHUB_REF_NAME}")"
+
+          if [ "${STATUS}" = "404" ]; then
+            node -e '
+              process.stdout.write(JSON.stringify({
+                tag_name: process.env.GITHUB_REF_NAME,
+                name: `WallpaperFlow ${process.env.GITHUB_REF_NAME}`,
+                body: "Automatisch erstelltes Android-Release.",
+                draft: false,
+                prerelease: false
+              }))
+            ' > "${CREATE_JSON}"
+            curl --fail --silent --show-error \
+              --request POST \
+              --header "Authorization: token ${GITEA_RELEASE_TOKEN}" \
+              --header "Content-Type: application/json" \
+              --data-binary "@${CREATE_JSON}" \
+              --output "${RELEASE_JSON}" \
+              "${API_ROOT}/releases"
+          elif [ "${STATUS}" != "200" ]; then
+            echo "Could not read Gitea release for ${GITHUB_REF_NAME} (HTTP ${STATUS})." >&2
+            exit 1
+          fi
+
+          RELEASE_ID="$(node -e '
+            const release = JSON.parse(require("fs").readFileSync(process.argv[1], "utf8"));
+            if (!release.id) process.exit(1);
+            process.stdout.write(String(release.id));
+          ' "${RELEASE_JSON}")"
+
+          curl --fail --silent --show-error \
+            --header "Authorization: token ${GITEA_RELEASE_TOKEN}" \
+            --output "${ASSETS_JSON}" \
+            "${API_ROOT}/releases/${RELEASE_ID}/assets"
+
+          for FILE in \
+            release/WallpaperFlow-release.apk \
+            release/WallpaperFlow-release.apk.sha256
+          do
+            ASSET_NAME="$(basename "${FILE}")"
+            ASSET_ID="$(ASSET_NAME="${ASSET_NAME}" node -e '
+              const assets = JSON.parse(require("fs").readFileSync(process.argv[1], "utf8"));
+              const asset = assets.find(item => item.name === process.env.ASSET_NAME);
+              if (asset) process.stdout.write(String(asset.id));
+            ' "${ASSETS_JSON}")"
+
+            if [ -n "${ASSET_ID}" ]; then
+              curl --fail --silent --show-error \
+                --request DELETE \
+                --header "Authorization: token ${GITEA_RELEASE_TOKEN}" \
+                "${API_ROOT}/releases/${RELEASE_ID}/assets/${ASSET_ID}"
+            fi
+
+            curl --fail --silent --show-error \
+              --request POST \
+              --header "Authorization: token ${GITEA_RELEASE_TOKEN}" \
+              --form "attachment=@${FILE}" \
+              "${API_ROOT}/releases/${RELEASE_ID}/assets" >/dev/null
+          done

LICENSE

@@ -0,0 +1,232 @@
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
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+
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+If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM).
+
+The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network.
+
+Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying.
+
+7. Additional Terms.
+“Additional permissions” are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.
+
+Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
+
+     a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or
+
+     b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or
+
+     c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or
+
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+
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+
+     f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors.
+
+All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
+
+8. Termination.
+You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).
+
+However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
+
+Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.
+
+9. Acceptance Not Required for Having Copies.
+You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
+
+10. Automatic Licensing of Downstream Recipients.
+Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.
+
+An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
+
+11. Patents.
+A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's “contributor version”.
+
+A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
+
+In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
+
+A patent license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
+
+12. No Surrender of Others' Freedom.
+If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
+
+13. Use with the GNU Affero General Public License.
+Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.
+
+14. Revised Versions of this License.
+The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
+
+     <one line to give the program's name and a brief idea of what it does.>
+     Copyright (C) <year>  <name of author>
+
+     This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
+
+     <program>  Copyright (C) <year>  <name of author>
+     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+     This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an “about box”.
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <https://www.gnu.org/philosophy/why-not-lgpl.html>.

PRIVACY.md

@@ -0,0 +1,45 @@
+# Datenschutzerklärung / Privacy Policy
+
+Stand / Last updated: 21. August 2026
+
+## Deutsch
+
+WallpaperFlow verarbeitet die vom Nutzer ausgewählten Bilder grundsätzlich lokal auf dem Android-Gerät. Die Bilder werden in den privaten App-Speicher kopiert und nur dazu verwendet, Vorschaubilder anzuzeigen und das vom Nutzer gewählte Hintergrund- oder Sperrbildschirmbild zu setzen.
+
+Optional kann der Nutzer die App mit einem eigenen, selbst gehosteten Immich-Server verbinden. In diesem Fall sendet WallpaperFlow den API-Key ausschließlich an die eingetragene Server-URL, um die Verbindung zu prüfen, Alben und Vorschaubilder abzurufen und ausdrücklich ausgewählte Bilder herunterzuladen. Der API-Key wird mit einem Schlüssel aus dem Android Keystore verschlüsselt gespeichert. Die Server-URL und der angezeigte Benutzername werden im privaten App-Speicher abgelegt. WallpaperFlow lädt keine Bilder zu Immich hoch und verändert keine Daten auf dem Server. Bei einer unverschlüsselten HTTP-URL weist die App auf die fehlende Transportverschlüsselung hin.
+
+WallpaperFlow:
+
+- erhebt keine personenbezogenen Daten,
+- überträgt keine Bilder oder Einstellungen an fremde Server,
+- gibt keine Daten an Dritte weiter,
+- enthält keine Werbung, Analyse-, Tracking- oder Profiling-Dienste und
+- verlangt keine Registrierung und kein Benutzerkonto.
+
+Die Einstellungen und importierten Bilder können durch das Löschen einzelner Bilder innerhalb der App oder durch das Löschen der App-Daten beziehungsweise die Deinstallation der App entfernt werden.
+
+Die App verwendet einen sichtbaren Android-Hintergrunddienst, um den vom Nutzer aktivierten automatischen Bildwechsel auszuführen. Nach einem Geräteneustart kann die Zeitplanung wiederhergestellt werden. Dabei werden keine Daten außerhalb des Geräts verarbeitet.
+
+Fragen zum Datenschutz können über den Issue-Tracker des Projekts gestellt werden:
+https://git.cbsk-tech.de/Christoph/LockScreenWallpaper/issues
+
+## English
+
+WallpaperFlow generally processes user-selected images on the local Android device. Images are copied into the app's private storage and are used only to display previews and to set the wallpaper or lock-screen image selected by the user.
+
+Users may optionally connect the app to their own self-hosted Immich server. In this case, WallpaperFlow sends the API key only to the configured server URL to test the connection, retrieve albums and thumbnails, and download explicitly selected images. The API key is encrypted with a key held in the Android Keystore. The server URL and displayed user name are stored in the app's private storage. WallpaperFlow does not upload images to Immich or modify server data. The app warns users when an unencrypted HTTP URL is used.
+
+WallpaperFlow:
+
+- does not collect personal data,
+- does not transmit images or settings to third-party servers,
+- does not share data with third parties,
+- contains no advertising, analytics, tracking or profiling services, and
+- requires no registration or user account.
+
+Settings and imported images can be removed by deleting individual images in the app, clearing the app's data or uninstalling the app.
+
+The app uses a visible Android background service to perform automatic wallpaper rotation after the user enables it. Scheduling may be restored after a device restart. No data is processed outside the device for this purpose.
+
+Privacy questions can be submitted through the project's issue tracker:
+https://git.cbsk-tech.de/Christoph/LockScreenWallpaper/issues

README.md

@@ -1,6 +1,6 @@
-# LockScreenWallpaper
+# WallpaperFlow
 
-LockScreenWallpaper ist eine Tauri-2-App für Android, die aus einer frei wählbaren Bildsammlung bei jedem Aktivieren des Displays ein neues Sperrbildschirmbild setzt.
+WallpaperFlow ist eine freie Tauri-2-App für Android, die aus einer frei wählbaren Bildsammlung in einem einstellbaren Zeitintervall ein neues Sperrbildschirmbild setzt.
 
 ## Was bereits umgesetzt ist
 
@@ -9,11 +9,16 @@ LockScreenWallpaper ist eine Tauri-2-App für Android, die aus einer frei wählb
 - Wechsel nur für den Sperrbildschirm oder für das allgemeine Hintergrundbild
 - zufällige oder fortlaufende Reihenfolge
 - manueller Wechsel über „Nächstes Motiv“
-- automatischer Wechsel bei `ACTION_SCREEN_ON`
+- automatischer Wechsel alle 5, 15 oder 30 Minuten beziehungsweise alle 1, 3, 6 oder 12 Stunden
-- Neustart des Dienstes nach einem Geräte-Neustart, soweit die Android-Version Hintergrundstarts zulässt
+- optionaler Wechsel bei jedem Einschalten des Displays
+- erneute Planung des automatischen Wechsels nach einem Geräte-Neustart
 - lokale Vorschaubilder; die Originalbilder verlassen das Gerät nicht
+- optionaler Import aus einem selbst gehosteten Immich-Server über einen eingeschränkten API-Key
+- vollständig lokale Oberfläche in Deutsch, Englisch, Französisch, Spanisch, Italienisch, Niederländisch, Polnisch, Portugiesisch, Japanisch, Koreanisch und vereinfachtem Chinesisch
 
-Android hält den Listener über einen Foreground Service aktiv. Solange der automatische Wechsel eingeschaltet ist, zeigt das System deshalb eine dauerhafte, stille Benachrichtigung. Auf Geräten mit aggressivem Energiesparen muss LockScreenWallpaper gegebenenfalls von der Akku-Optimierung ausgenommen werden.
+Der automatische Wechsel verwendet einen ungenauen Android-Alarm und respektiert Doze sowie den Energiesparmodus. Dadurch gibt es keinen dauerhaft laufenden Dienst und keine permanente Benachrichtigung; Wechsel können im Ruhezustand etwas später erfolgen. Automatische Immich-Downloads erfolgen nur über eine nicht getaktete Verbindung und bei ausreichendem Akkustand.
+
+Der optionale Modus „Beim Einschalten des Displays“ benötigt dagegen einen kleinen Foreground Service mit permanenter Benachrichtigung, damit Android die Display-Ereignisse zuverlässig zustellt. Das nächste Bild wird bereits beim Ausschalten gesetzt und ist dadurch beim folgenden Einschalten ohne sichtbare Verzögerung vorhanden. Der Dienst hält keinen CPU-Wake-Lock.
 
 ## Entwicklung
 
@@ -42,9 +47,76 @@ npm run tauri android dev
 
 Der native Android-Code liegt als lokales Tauri-Plugin in `plugins/android`. Er wird beim Android-Build automatisch eingebunden.
 
+## Signierte Android-Releases mit Gitea Actions
+
+Der Workflow `.gitea/workflows/android-release.yml` baut bei Tags wie `v1.2.3`
+eine signierte Universal-APK. Der Tag ist dabei die Quelle für alle
+Versionsnummern im Build. Die Pipeline setzt vorübergehend die Versionen in
+`package.json`, `package-lock.json`, `src-tauri/tauri.conf.json`,
+`src-tauri/Cargo.toml`, `src-tauri/Cargo.lock` und `.fdroid.yml`. Diese Änderungen
+gelten nur im Arbeitsverzeichnis des Runners und werden nicht zurück ins
+Repository geschrieben.
+
+Aus `v1.2.3` erzeugt Tauri den Android-`versionCode` `1002003` nach dem Schema
+`major * 1000000 + minor * 1000 + patch`. Der Workflow kann außerdem manuell
+über die Actions-Oberfläche gestartet werden, wenn dabei ein Versions-Tag als
+Ref ausgewählt wird.
+
+In den Repository-Einstellungen unter **Settings → Actions → Secrets** müssen
+folgende Secrets angelegt werden:
+
+- `ANDROID_KEYSTORE_BASE64`: der Base64-kodierte Inhalt des Release-Keystores
+- `ANDROID_KEYSTORE_PASSWORD`: Passwort des Keystores
+- `ANDROID_KEY_ALIAS`: Alias des Signaturschlüssels
+- `ANDROID_KEY_PASSWORD`: Passwort des Signaturschlüssels
+
+Den Keystore-Inhalt für das Secret erzeugt man unter Linux mit:
+
+```bash
+base64 -w 0 /sicherer/pfad/wallpaperflow-release.jks
+```
+
+Nach erfolgreichem Lauf erstellt die Pipeline ein Gitea-Release für den Tag
+beziehungsweise verwendet ein bereits vorhandenes Release. Die Dateien
+`WallpaperFlow-release.apk` und `WallpaperFlow-release.apk.sha256` werden direkt
+an dieses Release angehängt. Bei einem erneuten Lauf für denselben Tag werden
+vorhandene Anhänge mit diesen Namen ersetzt. Dafür muss der integrierte
+`GITEA_TOKEN` Schreibzugriff auf Releases besitzen; die Pipeline fordert die
+Berechtigung `releases: write` selbst an.
+
+Der Keystore darf nicht in das Repository eingecheckt werden und muss dauerhaft
+gesichert bleiben, da spätere Updates mit demselben Schlüssel signiert werden
+müssen.
+
+Voraussetzung ist ein aktiver Gitea-Actions-Runner mit dem Label
+`ubuntu-latest`, Netzwerkzugriff auf npm, Rust und die Android-SDK-Server sowie
+ausreichend Speicher für Android SDK, NDK und Rust-Buildartefakte.
+
 ## Wichtige Android-Hinweise
 
-- Android erlaubt keine komplett unsichtbare, dauerhaft laufende Überwachung des Display-Status. Der automatische Wechsel verwendet deshalb korrekt einen Foreground Service.
+- Android darf ungenaue Alarme im Ruhemodus verzögern. Der nächste Wechsel wird ausgeführt, sobald das Gerät wieder aktiv ist.
 - `WallpaperManager.FLAG_LOCK` ist ab Android 7 verfügbar. Auf älteren Geräten setzt die App das allgemeine Hintergrundbild.
-- Hersteller können Hintergrunddienste zusätzlich einschränken. Besonders bei Samsung/Xiaomi kann eine Ausnahme von der Akku-Optimierung nötig sein.
+- Hersteller können Hintergrundarbeit zusätzlich verzögern. Eine Ausnahme von der Akku-Optimierung ist für den normalen Betrieb nicht vorgesehen.
 - „Ohne Limit“ bedeutet: kein App-Zähler wie Samsungs 15-Bilder-Grenze. Praktisch begrenzen freier Gerätespeicher und Dateisystem die Sammlung.
+
+## Datenschutz
+
+WallpaperFlow verarbeitet importierte Bilder lokal auf dem Gerät. Die optionale Immich-Anbindung kommuniziert ausschließlich mit dem vom Nutzer eingetragenen, selbst gehosteten Server und lädt nur ausdrücklich ausgewählte Bilder herunter. Die App enthält keine Werbung, kein Tracking und keine Analysedienste. Bilder werden nicht hochgeladen oder an andere Server weitergegeben.
+
+Weitere Einzelheiten stehen in der [Datenschutzerklärung](PRIVACY.md).
+
+## Veröffentlichungen
+
+Für ein Gitea-Release genügt ein neuer, höherer Versions-Tag wie `v0.1.1`; die
+Pipeline übernimmt daraus alle Versionen für den Build. Für dauerhaft im
+Repository gepflegte Versionsstände und F-Droid-Releases sollten die Versionen
+in `package.json`, `src-tauri/tauri.conf.json`, `src-tauri/Cargo.toml` und
+`.fdroid.yml` zusätzlich im Quellcode aktualisiert werden.
+
+Die Metadaten für F-Droid liegen unter `fastlane/metadata/android`. Das Buildrezept für F-Droid befindet sich in `.fdroid.yml`.
+
+## Lizenz
+
+Copyright (C) 2026 Christoph
+
+WallpaperFlow ist freie Software und steht unter der GNU General Public License Version 3.0 (`GPL-3.0-only`). Die vollständigen Lizenzbedingungen stehen in [LICENSE](LICENSE).

app-icon.svg

@@ -1,8 +1,10 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
-  <rect width="512" height="512" rx="116" fill="#145d32"/>
+  <rect width="512" height="512" rx="116" fill="#edf4e9"/>
-  <path d="M142 128h228a42 42 0 0 1 42 42v210a42 42 0 0 1-42 42H142a42 42 0 0 1-42-42V170a42 42 0 0 1 42-42Z" fill="#f8faf7" opacity=".22"/>
+  <circle cx="256" cy="256" r="177" fill="#0f5b32"/>
-  <path d="M172 92h190a38 38 0 0 1 38 38v214a38 38 0 0 1-38 38H172a38 38 0 0 1-38-38V130a38 38 0 0 1 38-38Z" fill="#f8faf7"/>
+  <path d="M143 191c24-45 66-77 116-86" fill="none" stroke="#91bf93" stroke-width="19" stroke-linecap="round"/>
-  <circle cx="321" cy="170" r="31" fill="#a9cda7"/>
+  <path d="m238 93 31 10-25 20Z" fill="#91bf93"/>
-  <path d="m157 319 72-91 53 62 37-42 65 79v17a17 17 0 0 1-17 17H168a17 17 0 0 1-17-17v-15Z" fill="#145d32"/>
+  <path d="m146 211 55 128 55-103 55 103 55-128" fill="none" stroke="#f8faf4" stroke-width="34" stroke-linecap="round" stroke-linejoin="round"/>
-  <path d="M366 112a122 122 0 0 1 39 61" fill="none" stroke="#a9cda7" stroke-width="18" stroke-linecap="round"/>
+  <circle cx="366" cy="177" r="24" fill="#f2c85b"/>
+  <path d="M369 365c-25 28-59 47-97 52" fill="none" stroke="#91bf93" stroke-width="19" stroke-linecap="round"/>
+  <path d="m291 426-30-8 23-21Z" fill="#91bf93"/>
 </svg>

design/icon-final/android-background.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <rect width="512" height="512" fill="#edf4e9"/>
+</svg>

design/icon-final/android-foreground.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <circle cx="256" cy="256" r="174" fill="#0f5b32"/>
+  <path d="M145 191c24-44 65-75 114-84" fill="none" stroke="#91bf93" stroke-width="19" stroke-linecap="round"/>
+  <path d="m238 95 30 10-24 20Z" fill="#91bf93"/>
+  <path d="m149 213 53 124 54-101 54 101 53-124" fill="none" stroke="#f8faf4" stroke-width="34" stroke-linecap="round" stroke-linejoin="round"/>
+  <circle cx="364" cy="179" r="23" fill="#f2c85b"/>
+  <path d="M367 363c-24 27-58 45-95 50" fill="none" stroke="#91bf93" stroke-width="19" stroke-linecap="round"/>
+  <path d="m291 422-30-8 23-21Z" fill="#91bf93"/>
+</svg>

design/icon-final/android-monochrome.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <path d="m149 213 53 124 54-101 54 101 53-124" fill="none" stroke="#000" stroke-width="38" stroke-linecap="round" stroke-linejoin="round"/>
+  <path d="M145 191c24-44 65-75 114-84m108 256c-24 27-58 45-95 50" fill="none" stroke="#000" stroke-width="22" stroke-linecap="round"/>
+  <path d="m238 95 30 10-24 20Zm53 327-30-8 23-21Z" fill="#000"/>
+</svg>

design/icon-final/icon-manifest.json

@@ -0,0 +1,8 @@
+{
+  "default": "../../app-icon.svg",
+  "bg_color": "#edf4e9",
+  "android_bg": "android-background.svg",
+  "android_fg": "android-foreground.svg",
+  "android_fg_scale": 82,
+  "android_monochrome": "android-monochrome.svg"
+}

design/icon-proposals/01-frame-flow.svg

@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <rect width="512" height="512" rx="116" fill="#0f5b32"/>
+  <g transform="rotate(-8 236 258)">
+    <rect x="112" y="111" width="250" height="316" rx="48" fill="#8fbd91"/>
+  </g>
+  <rect x="142" y="78" width="258" height="330" rx="49" fill="#f8faf4"/>
+  <circle cx="326" cy="153" r="30" fill="#f2c85b"/>
+  <path d="M163 330 238 226l54 69 38-44 51 65v54c0 11-9 20-20 20H181c-11 0-20-9-20-20Z" fill="#0f5b32"/>
+  <path d="M342 74c39 12 69 42 82 80" fill="none" stroke="#dcebd8" stroke-width="18" stroke-linecap="round"/>
+  <path d="m408 128 18 30 11-33Z" fill="#dcebd8"/>
+</svg>

design/icon-proposals/02-lockscape.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <rect width="512" height="512" rx="116" fill="#143d2c"/>
+  <path d="M169 205v-42c0-55 38-94 87-94s87 39 87 94v42" fill="none" stroke="#dcebd8" stroke-width="35" stroke-linecap="round"/>
+  <rect x="103" y="182" width="306" height="254" rx="58" fill="#f8faf4"/>
+  <circle cx="328" cy="251" r="29" fill="#f2c85b"/>
+  <path d="m124 367 86-104 57 68 40-47 81 92v18c0 12-10 22-22 22H146c-12 0-22-10-22-22Z" fill="#16804a"/>
+  <circle cx="256" cy="330" r="24" fill="#143d2c"/>
+  <path d="M245 344h22l10 42h-42Z" fill="#143d2c"/>
+</svg>

design/icon-proposals/03-wechsel-w.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <rect width="512" height="512" rx="116" fill="#edf4e9"/>
+  <circle cx="256" cy="256" r="177" fill="#0f5b32"/>
+  <path d="M143 191c24-45 66-77 116-86" fill="none" stroke="#8fbd91" stroke-width="19" stroke-linecap="round"/>
+  <path d="m238 93 30 10-24 20Z" fill="#8fbd91"/>
+  <path d="m146 211 55 128 55-103 55 103 55-128" fill="none" stroke="#f8faf4" stroke-width="34" stroke-linecap="round" stroke-linejoin="round"/>
+  <circle cx="366" cy="177" r="24" fill="#f2c85b"/>
+  <path d="M369 365c-25 28-59 47-97 52" fill="none" stroke="#8fbd91" stroke-width="19" stroke-linecap="round"/>
+  <path d="m291 426-29-8 22-21Z" fill="#8fbd91"/>
+</svg>

design/icon-proposals/04-orbit-gallery.svg

@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <rect width="512" height="512" rx="116" fill="#0b5430"/>
+  <circle cx="256" cy="256" r="166" fill="none" stroke="#80b688" stroke-width="22" stroke-dasharray="250 70" stroke-linecap="round"/>
+  <path d="m390 136 25 4-13 22Z" fill="#80b688"/>
+  <path d="m116 362-24-7 16-20Z" fill="#80b688"/>
+  <g transform="rotate(7 256 256)">
+    <rect x="165" y="111" width="182" height="290" rx="42" fill="#f8faf4"/>
+    <circle cx="296" cy="179" r="24" fill="#f2c85b"/>
+    <path d="m181 326 56-76 42 50 26-30 27 36v58c0 12-10 21-21 21H202c-12 0-21-10-21-21Z" fill="#16804a"/>
+  </g>
+</svg>

design/icon-proposals/icon-proposals-board.svg

@@ -0,0 +1,39 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 1600 620">
+  <rect width="1600" height="620" fill="#edf1ed"/>
+  <text x="70" y="70" font-family="Inter,Arial,sans-serif" font-size="34" font-weight="800" fill="#18201b">WallpaperFlow · Icon-Richtungen</text>
+  <text x="70" y="105" font-family="Inter,Arial,sans-serif" font-size="17" fill="#657068">Vier Varianten in der bestehenden Grün-/Salbei-Farbwelt</text>
+  <g font-family="Inter,Arial,sans-serif">
+    <g transform="translate(48 140)">
+      <rect width="350" height="430" rx="30" fill="#f8faf7"/>
+      <image x="45" y="35" width="260" height="260" xlink:href="01-frame-flow.svg"/>
+      <image x="274" y="270" width="58" height="58" xlink:href="01-frame-flow.svg"/>
+      <text x="32" y="344" font-size="23" font-weight="800" fill="#18201b">1 · Frame Flow</text>
+      <text x="32" y="375" font-size="15" fill="#657068">Foto im Mittelpunkt, Wechselbewegung</text>
+      <text x="32" y="400" font-size="15" fill="#657068">modern und sofort verständlich</text>
+    </g>
+    <g transform="translate(433 140)">
+      <rect width="350" height="430" rx="30" fill="#f8faf7"/>
+      <image x="45" y="35" width="260" height="260" xlink:href="02-lockscape.svg"/>
+      <image x="274" y="270" width="58" height="58" xlink:href="02-lockscape.svg"/>
+      <text x="32" y="344" font-size="23" font-weight="800" fill="#18201b">2 · Lockscape</text>
+      <text x="32" y="375" font-size="15" fill="#657068">Sperrbildschirm eindeutig erkennbar</text>
+      <text x="32" y="400" font-size="15" fill="#657068">kräftig, funktional und unverwechselbar</text>
+    </g>
+    <g transform="translate(818 140)">
+      <rect width="350" height="430" rx="30" fill="#f8faf7"/>
+      <image x="45" y="35" width="260" height="260" xlink:href="03-wechsel-w.svg"/>
+      <image x="274" y="270" width="58" height="58" xlink:href="03-wechsel-w.svg"/>
+      <text x="32" y="344" font-size="23" font-weight="800" fill="#18201b">3 · Wechsel-W</text>
+      <text x="32" y="375" font-size="15" fill="#657068">Eigenständige Markenform mit W</text>
+      <text x="32" y="400" font-size="15" fill="#657068">reduziert und gut als Logo ausbaubar</text>
+    </g>
+    <g transform="translate(1203 140)">
+      <rect width="350" height="430" rx="30" fill="#f8faf7"/>
+      <image x="45" y="35" width="260" height="260" xlink:href="04-orbit-gallery.svg"/>
+      <image x="274" y="270" width="58" height="58" xlink:href="04-orbit-gallery.svg"/>
+      <text x="32" y="344" font-size="23" font-weight="800" fill="#18201b">4 · Orbit Gallery</text>
+      <text x="32" y="375" font-size="15" fill="#657068">Dynamischer automatischer Wechsel</text>
+      <text x="32" y="400" font-size="15" fill="#657068">technischer und energiegeladener</text>
+    </g>
+  </g>
+</svg>

fastlane/metadata/android/de-DE/changelogs/1000.txt

@@ -0,0 +1 @@
+Erste öffentliche Version mit automatischem Bildwechsel, lokaler Galerie, Mehrfachauswahl, Immich-Import, Intervallsteuerung und mehrsprachiger Oberfläche.

fastlane/metadata/android/de-DE/full_description.txt

@@ -0,0 +1,13 @@
+WallpaperFlow wechselt automatisch zwischen deinen ausgewählten Bildern und setzt sie als Sperrbildschirm- oder Hintergrundbild.
+
+Funktionen:
+* beliebig viele Bilder aus der Android-Auswahl importieren
+* Bilder alle 5, 15 oder 30 Minuten sowie stündlich wechseln
+* zufällige oder fortlaufende Reihenfolge
+* nur den Sperrbildschirm oder das allgemeine Hintergrundbild ändern
+* Bilder gemeinsam auswählen und löschen
+* Bilder aus einem eigenen Immich-Server auswählen und lokal importieren
+* Wechsel nach einem Neustart automatisch fortsetzen
+* Oberfläche in mehreren europäischen und asiatischen Sprachen
+
+Importierte Bilder und Einstellungen bleiben lokal auf deinem Gerät. Die optionale Immich-Verbindung kommuniziert nur mit deinem eingetragenen Server. WallpaperFlow enthält keine Werbung, kein Tracking und keine Analysedienste.

fastlane/metadata/android/de-DE/short_description.txt

@@ -0,0 +1 @@
+Automatischer Wechsel deiner Sperrbildschirmbilder – lokal und privat

fastlane/metadata/android/de-DE/title.txt

@@ -0,0 +1 @@
+WallpaperFlow

fastlane/metadata/android/en-US/changelogs/1000.txt

@@ -0,0 +1 @@
+First public release with automatic rotation, a local gallery, multi-selection, Immich import, configurable intervals and a multilingual interface.

fastlane/metadata/android/en-US/full_description.txt

@@ -0,0 +1,13 @@
+WallpaperFlow automatically rotates through your selected images and sets them as your lock-screen or general wallpaper.
+
+Features:
+* import any number of images using the Android system picker
+* change images every 5, 15 or 30 minutes or every few hours
+* shuffle or sequential order
+* change only the lock screen or the general wallpaper
+* select and delete several images at once
+* select images from your own Immich server and import them locally
+* resume rotation after a device restart
+* interface in multiple European and Asian languages
+
+Imported images and settings remain locally on your device. The optional Immich connection communicates only with the server you configure. WallpaperFlow contains no advertising, tracking or analytics services.

fastlane/metadata/android/en-US/short_description.txt

@@ -0,0 +1 @@
+Automatically rotate lock-screen wallpapers locally and privately

fastlane/metadata/android/en-US/title.txt

@@ -0,0 +1 @@
+WallpaperFlow

index.html

@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover" />
     <meta name="theme-color" content="#f8faf7" />
     <title>WallpaperFlow</title>
   </head>

package-lock.json

@@ -7,6 +7,7 @@
     "": {
       "name": "lockscreenwallpaper",
       "version": "0.1.0",
+      "license": "GPL-3.0-only",
       "dependencies": {
         "@tauri-apps/api": "^2.8.0",
         "lucide-react": "^0.468.0",

package.json

@@ -2,6 +2,7 @@
   "name": "lockscreenwallpaper",
   "private": true,
   "version": "0.1.0",
+  "license": "GPL-3.0-only",
   "type": "module",
   "scripts": {
     "dev": "vite",

plugins/Cargo.toml

@@ -3,6 +3,7 @@ name = "tauri-plugin-wallpaper"
 version = "0.1.0"
 authors = [ "LockScreenWallpaper" ]
 description = ""
+license = "GPL-3.0-only"
 edition = "2021"
 rust-version = "1.77.2"
 exclude = ["/examples", "/dist-js", "/guest-js", "/node_modules"]

plugins/android/build.gradle.kts

@@ -37,6 +37,7 @@ dependencies {
     implementation("androidx.core:core-ktx:1.9.0")
     implementation("androidx.appcompat:appcompat:1.6.0")
     implementation("com.google.android.material:material:1.7.0")
+    implementation("androidx.work:work-runtime-ktx:2.10.1")
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")

plugins/android/src/main/AndroidManifest.xml

@@ -1,16 +1,21 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
   <uses-permission android:name="android.permission.SET_WALLPAPER" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
   <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
   <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE" />
   <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
   <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
   <application>
-    <service android:name="de.wechselbild.wallpaper.WallpaperRotationService" android:exported="false" android:foregroundServiceType="specialUse">
+    <service android:name="de.wechselbild.wallpaper.ScreenOnRotationService" android:exported="false" android:foregroundServiceType="specialUse">
-      <property android:name="android.app.PROPERTY_SPECIAL_USE_FGS_SUBTYPE" android:value="Changes the user-selected lock-screen wallpaper when the display turns on" />
+      <property android:name="android.app.PROPERTY_SPECIAL_USE_FGS_SUBTYPE" android:value="Changes the user-selected lock-screen wallpaper when the screen turns on" />
     </service>
     <receiver android:name="de.wechselbild.wallpaper.BootReceiver" android:enabled="true" android:exported="true">
-      <intent-filter><action android:name="android.intent.action.BOOT_COMPLETED" /></intent-filter>
+      <intent-filter>
+        <action android:name="android.intent.action.BOOT_COMPLETED" />
+        <action android:name="android.intent.action.MY_PACKAGE_REPLACED" />
+      </intent-filter>
     </receiver>
+    <receiver android:name="de.wechselbild.wallpaper.WallpaperAlarmReceiver" android:exported="false" />
   </application>
 </manifest>

plugins/android/src/main/java/BootReceiver.kt

@@ -6,6 +6,11 @@ import android.content.Intent
 
 class BootReceiver : BroadcastReceiver() {
   override fun onReceive(context: Context, intent: Intent) {
-    if (intent.action == Intent.ACTION_BOOT_COMPLETED && WallpaperStore.enabled(context)) runCatching { WallpaperRotationService.start(context) }
+    if (intent.action !in setOf(Intent.ACTION_BOOT_COMPLETED, Intent.ACTION_MY_PACKAGE_REPLACED)) return
+    when {
+      WallpaperStore.screenOnEnabled(context) -> runCatching { ScreenOnRotationService.start(context) }
+      WallpaperStore.timedEnabled(context) -> WallpaperScheduler.scheduleNext(context)
+    }
+    if (ImmichClient.configured(context) && WallpaperStore.prefetchImmich(context)) ImmichPrefetchWorker.enqueue(context)
   }
 }

plugins/android/src/main/java/ImmichClient.kt

@@ -0,0 +1,403 @@
+package de.wechselbild.wallpaper
+
+import android.content.Context
+import android.net.ConnectivityManager
+import android.graphics.BitmapFactory
+import android.security.keystore.KeyGenParameterSpec
+import android.security.keystore.KeyProperties
+import android.util.Base64
+import app.tauri.plugin.JSArray
+import app.tauri.plugin.JSObject
+import java.io.ByteArrayOutputStream
+import java.io.File
+import java.io.IOException
+import java.net.HttpURLConnection
+import java.net.URI
+import java.net.URLEncoder
+import java.nio.charset.StandardCharsets
+import java.security.KeyStore
+import java.security.MessageDigest
+import java.util.concurrent.Callable
+import java.util.concurrent.Executors
+import java.util.concurrent.atomic.AtomicReference
+import javax.crypto.Cipher
+import javax.crypto.KeyGenerator
+import javax.crypto.SecretKey
+import javax.crypto.spec.GCMParameterSpec
+import org.json.JSONArray
+import org.json.JSONObject
+
+object ImmichClient {
+  private const val PREFS = "wechselbild"
+  private const val KEY_SERVER_URL = "immich_server_url"
+  private const val KEY_USER_NAME = "immich_user_name"
+  private const val KEY_API_KEY_DATA = "immich_api_key_data"
+  private const val KEY_API_KEY_IV = "immich_api_key_iv"
+  private const val KEY_ALIAS = "wallpaperflow_immich_api_key"
+  private const val CACHE_MAX_BYTES = 512L * 1024 * 1024
+  private const val DOWNLOAD_MAX_BYTES = 128L * 1024 * 1024
+  private const val PROGRESS_STEP_BYTES = 256L * 1024
+  private val assetIdPattern = Regex("^[0-9a-fA-F-]{36}$")
+  private val thumbnailPool = Executors.newFixedThreadPool(4)
+  private val importProgress = AtomicReference(ImportProgress())
+
+  private data class Credentials(val serverUrl: String, val apiKey: String)
+  private data class ImportProgress(
+    val active: Boolean = false,
+    val completed: Int = 0,
+    val total: Int = 0,
+    val bytesDownloaded: Long = 0,
+    val bytesTotal: Long = 0,
+  )
+
+  private fun prefs(context: Context) = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+
+  private fun normalizeServerUrl(value: String): String {
+    val raw = value.trim().trimEnd('/')
+    require(raw.isNotBlank()) { "Bitte gib die URL deines Immich-Servers ein." }
+    val uri = runCatching { URI(raw) }.getOrNull()
+      ?: throw IllegalArgumentException("Die Immich-URL ist ungültig.")
+    require(uri.scheme.equals("https", true) || uri.scheme.equals("http", true)) {
+      "Die Immich-URL muss mit https:// oder http:// beginnen."
+    }
+    require(!uri.host.isNullOrBlank()) { "Die Immich-URL enthält keinen gültigen Hostnamen." }
+    require(uri.userInfo == null && uri.query == null && uri.fragment == null) { "Die Immich-URL ist ungültig." }
+    val basePath = (uri.path ?: "").trimEnd('/')
+    val apiPath = if (basePath.endsWith("/api")) basePath else "$basePath/api"
+    return URI(uri.scheme.lowercase(), null, uri.host, uri.port, apiPath, null, null).toString().trimEnd('/')
+  }
+
+  private fun secretKey(): SecretKey {
+    val keyStore = KeyStore.getInstance("AndroidKeyStore").apply { load(null) }
+    (keyStore.getKey(KEY_ALIAS, null) as? SecretKey)?.let { return it }
+    return KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore").run {
+      init(
+        KeyGenParameterSpec.Builder(KEY_ALIAS, KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
+          .setBlockModes(KeyProperties.BLOCK_MODE_GCM)
+          .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE)
+          .build()
+      )
+      generateKey()
+    }
+  }
+
+  private fun encryptApiKey(context: Context, value: String) {
+    val cipher = Cipher.getInstance("AES/GCM/NoPadding").apply { init(Cipher.ENCRYPT_MODE, secretKey()) }
+    val encrypted = cipher.doFinal(value.toByteArray(StandardCharsets.UTF_8))
+    prefs(context).edit()
+      .putString(KEY_API_KEY_DATA, Base64.encodeToString(encrypted, Base64.NO_WRAP))
+      .putString(KEY_API_KEY_IV, Base64.encodeToString(cipher.iv, Base64.NO_WRAP))
+      .apply()
+  }
+
+  private fun decryptApiKey(context: Context): String? = runCatching {
+    val preferences = prefs(context)
+    val encrypted = Base64.decode(preferences.getString(KEY_API_KEY_DATA, null), Base64.NO_WRAP)
+    val iv = Base64.decode(preferences.getString(KEY_API_KEY_IV, null), Base64.NO_WRAP)
+    val cipher = Cipher.getInstance("AES/GCM/NoPadding").apply {
+      init(Cipher.DECRYPT_MODE, secretKey(), GCMParameterSpec(128, iv))
+    }
+    String(cipher.doFinal(encrypted), StandardCharsets.UTF_8)
+  }.getOrNull()
+
+  private fun credentials(context: Context): Credentials {
+    val serverUrl = prefs(context).getString(KEY_SERVER_URL, null).orEmpty()
+    val apiKey = decryptApiKey(context).orEmpty()
+    check(serverUrl.isNotBlank() && apiKey.isNotBlank()) { "Immich ist noch nicht verbunden." }
+    return Credentials(serverUrl, apiKey)
+  }
+
+  private fun connectionObject(context: Context): JSObject {
+    val preferences = prefs(context)
+    val serverUrl = preferences.getString(KEY_SERVER_URL, "").orEmpty()
+    return JSObject().apply {
+      put("configured", serverUrl.isNotBlank() && !decryptApiKey(context).isNullOrBlank())
+      put("serverUrl", serverUrl)
+      put("userName", preferences.getString(KEY_USER_NAME, "").orEmpty())
+    }
+  }
+
+  fun connection(context: Context) = connectionObject(context)
+
+  fun configured(context: Context): Boolean {
+    val preferences = prefs(context)
+    return preferences.getString(KEY_SERVER_URL, "").orEmpty().isNotBlank() && !decryptApiKey(context).isNullOrBlank()
+  }
+
+  fun connect(context: Context, serverUrl: String, apiKey: String): JSObject {
+    val normalized = normalizeServerUrl(serverUrl)
+    require(apiKey.isNotBlank()) { "Bitte gib deinen Immich API-Key ein." }
+    val user = requestJson(normalized, apiKey.trim(), "/users/me")
+    val userName = user.optString("name").ifBlank { user.optString("email") }.ifBlank { "Immich" }
+    encryptApiKey(context, apiKey.trim())
+    prefs(context).edit().putString(KEY_SERVER_URL, normalized).putString(KEY_USER_NAME, userName).apply()
+    return connectionObject(context)
+  }
+
+  fun disconnect(context: Context): JSObject {
+    prefs(context).edit()
+      .remove(KEY_SERVER_URL)
+      .remove(KEY_USER_NAME)
+      .remove(KEY_API_KEY_DATA)
+      .remove(KEY_API_KEY_IV)
+      .apply()
+    return connectionObject(context)
+  }
+
+  private fun openConnection(
+    serverUrl: String,
+    apiKey: String,
+    path: String,
+    method: String = "GET",
+    body: String? = null,
+  ): HttpURLConnection {
+    val connection = URI(serverUrl + path).toURL().openConnection() as HttpURLConnection
+    connection.requestMethod = method
+    connection.connectTimeout = 15_000
+    connection.readTimeout = 60_000
+    connection.instanceFollowRedirects = true
+    connection.setRequestProperty("Accept", "application/json, image/*, application/octet-stream")
+    connection.setRequestProperty("x-api-key", apiKey)
+    if (body != null) {
+      connection.doOutput = true
+      connection.setRequestProperty("Content-Type", "application/json")
+      connection.outputStream.use { it.write(body.toByteArray(StandardCharsets.UTF_8)) }
+    }
+    return connection
+  }
+
+  private fun errorMessage(connection: HttpURLConnection): String {
+    val detail = runCatching {
+      connection.errorStream?.bufferedReader()?.use { it.readText().take(600) }.orEmpty()
+    }.getOrDefault("")
+    val message = runCatching { JSONObject(detail).optString("message") }.getOrDefault("")
+    return when (connection.responseCode) {
+      401, 403 -> "Immich hat den API-Key abgelehnt. Prüfe die Berechtigungen des Schlüssels."
+      404 -> "Die Immich-API wurde unter dieser URL nicht gefunden."
+      else -> message.ifBlank { "Immich antwortet mit HTTP ${connection.responseCode}." }
+    }
+  }
+
+  private fun requestJson(serverUrl: String, apiKey: String, path: String, method: String = "GET", body: String? = null): JSONObject {
+    val connection = openConnection(serverUrl, apiKey, path, method, body)
+    try {
+      if (connection.responseCode !in 200..299) throw IOException(errorMessage(connection))
+      return JSONObject(connection.inputStream.bufferedReader().use { it.readText() })
+    } finally { connection.disconnect() }
+  }
+
+  private fun requestArray(serverUrl: String, apiKey: String, path: String): JSONArray {
+    val connection = openConnection(serverUrl, apiKey, path)
+    try {
+      if (connection.responseCode !in 200..299) throw IOException(errorMessage(connection))
+      return JSONArray(connection.inputStream.bufferedReader().use { it.readText() })
+    } finally { connection.disconnect() }
+  }
+
+  private fun requestBytes(serverUrl: String, apiKey: String, path: String): Pair<ByteArray, String> {
+    val connection = openConnection(serverUrl, apiKey, path)
+    try {
+      if (connection.responseCode !in 200..299) throw IOException(errorMessage(connection))
+      val bytes = connection.inputStream.use { input -> ByteArrayOutputStream().use { output -> input.copyTo(output); output.toByteArray() } }
+      return bytes to connection.contentType.orEmpty().substringBefore(';')
+    } finally { connection.disconnect() }
+  }
+
+  private fun downloadToFile(serverUrl: String, apiKey: String, path: String, target: File, trackProgress: Boolean = true): String {
+    val connection = openConnection(serverUrl, apiKey, path)
+    try {
+      if (connection.responseCode !in 200..299) throw IOException(errorMessage(connection))
+      val total = connection.contentLengthLong.coerceAtLeast(0)
+      require(total == 0L || total <= DOWNLOAD_MAX_BYTES) { "Das Immich-Bild ist zu groß." }
+      var downloaded = 0L
+      var lastProgressUpdate = 0L
+      if (trackProgress) importProgress.updateAndGet { it.copy(bytesDownloaded = 0, bytesTotal = total) }
+      connection.inputStream.use { input ->
+        target.outputStream().use { output ->
+          val buffer = ByteArray(DEFAULT_BUFFER_SIZE)
+          while (true) {
+            val count = input.read(buffer)
+            if (count < 0) break
+            output.write(buffer, 0, count)
+            downloaded += count
+            require(downloaded <= DOWNLOAD_MAX_BYTES) { "Das Immich-Bild ist zu groß." }
+            if (trackProgress && (downloaded - lastProgressUpdate >= PROGRESS_STEP_BYTES || downloaded == total)) {
+              lastProgressUpdate = downloaded
+              importProgress.updateAndGet { it.copy(bytesDownloaded = downloaded, bytesTotal = total) }
+            }
+          }
+        }
+      }
+      return connection.contentType.orEmpty().substringBefore(';')
+    } catch (error: Exception) {
+      target.delete()
+      throw error
+    } finally { connection.disconnect() }
+  }
+
+  private fun thumbnailDataUrl(credentials: Credentials, assetId: String): String = runCatching {
+    val encoded = URLEncoder.encode(assetId, StandardCharsets.UTF_8.name())
+    val (bytes, contentType) = requestBytes(credentials.serverUrl, credentials.apiKey, "/assets/$encoded/thumbnail?size=thumbnail")
+    val mime = if (contentType.startsWith("image/")) contentType else "image/jpeg"
+    "data:$mime;base64," + Base64.encodeToString(bytes, Base64.NO_WRAP)
+  }.getOrDefault("")
+
+  fun albums(context: Context): JSObject {
+    val credentials = credentials(context)
+    val response = requestArray(credentials.serverUrl, credentials.apiKey, "/albums")
+    val albums = JSArray()
+    (0 until response.length()).map { response.getJSONObject(it) }
+      .sortedBy { it.optString("albumName").lowercase() }
+      .forEach { album ->
+        albums.put(JSObject().apply {
+          put("id", album.getString("id"))
+          put("name", album.optString("albumName", "Album"))
+          put("assetCount", album.optInt("assetCount", 0))
+          put("thumbnailUrl", "")
+        })
+      }
+    return JSObject().apply { put("albums", albums) }
+  }
+
+  fun assets(context: Context, albumId: String?, page: Int, size: Int): JSObject {
+    val credentials = credentials(context)
+    val safePage = page.coerceAtLeast(1)
+    val safeSize = size.coerceIn(1, 60)
+    val body = JSONObject().apply {
+      put("type", "IMAGE")
+      put("page", safePage)
+      put("size", safeSize)
+      put("order", "desc")
+      if (!albumId.isNullOrBlank()) put("albumIds", JSONArray().put(albumId))
+    }
+    val response = requestJson(credentials.serverUrl, credentials.apiKey, "/search/metadata", "POST", body.toString())
+      .getJSONObject("assets")
+    val jsonItems = response.getJSONArray("items")
+    val raw = (0 until jsonItems.length()).map { jsonItems.getJSONObject(it) }
+    val thumbnails = thumbnailPool.invokeAll(raw.map { asset -> Callable { thumbnailDataUrl(credentials, asset.getString("id")) } })
+    val items = JSArray()
+    raw.forEachIndexed { index, asset ->
+      items.put(JSObject().apply {
+        put("id", asset.getString("id"))
+        put("fileName", asset.optString("originalFileName", "Immich image"))
+        put("thumbnailUrl", runCatching { thumbnails[index].get() }.getOrDefault(""))
+        put("takenAt", asset.optString("localDateTime", asset.optString("fileCreatedAt", "")))
+      })
+    }
+    return JSObject().apply {
+      put("items", items)
+      put("page", safePage)
+      put("hasMore", !response.isNull("nextPage") && response.optString("nextPage").isNotBlank())
+    }
+  }
+
+  private fun importOne(context: Context, credentials: Credentials, assetId: String) {
+    require(assetIdPattern.matches(assetId)) { "Ungültige Immich-Bild-ID." }
+    if (WallpaperStore.hasImmich(context, credentials.serverUrl, assetId)) return
+    val encoded = URLEncoder.encode(assetId, StandardCharsets.UTF_8.name())
+    val temporary = File(context.cacheDir, ".immich-preview-$assetId.download")
+    downloadToFile(credentials.serverUrl, credentials.apiKey, "/assets/$encoded/thumbnail?size=preview", temporary)
+    val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+    BitmapFactory.decodeFile(temporary.absolutePath, bounds)
+    require(bounds.outWidth > 0 && bounds.outHeight > 0) { "Immich hat keine gültige Vorschau geliefert." }
+    try { WallpaperStore.addImmich(context, credentials.serverUrl, assetId, temporary) }
+    finally { temporary.delete() }
+  }
+
+  private fun cacheDirectory(context: Context) = File(context.cacheDir, "immich-wallpaper-originals").apply { mkdirs() }
+
+  private fun cacheKey(serverUrl: String, assetId: String): String {
+    val server = MessageDigest.getInstance("SHA-256").digest(serverUrl.toByteArray(StandardCharsets.UTF_8))
+      .take(6).joinToString("") { "%02x".format(it) }
+    return "$server-$assetId"
+  }
+
+  private fun validImage(file: File): Boolean {
+    if (!file.isFile || file.length() <= 0) return false
+    val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+    BitmapFactory.decodeFile(file.absolutePath, bounds)
+    return bounds.outWidth > 0 && bounds.outHeight > 0
+  }
+
+  fun automaticDownloadsAllowed(context: Context, allowMetered: Boolean): Boolean {
+    val connectivity = context.getSystemService(ConnectivityManager::class.java)
+    @Suppress("DEPRECATION")
+    return connectivity.activeNetworkInfo?.isConnected == true && (allowMetered || !connectivity.isActiveNetworkMetered)
+  }
+
+  @Synchronized
+  fun cachedOriginal(context: Context, serverUrl: String, assetId: String, allowNetwork: Boolean = true): File? {
+    val target = File(cacheDirectory(context), "${cacheKey(serverUrl, assetId)}.image")
+    if (validImage(target)) {
+      target.setLastModified(System.currentTimeMillis())
+      return target
+    }
+    target.delete()
+    if (!allowNetwork) return null
+    val current = runCatching { credentials(context) }.getOrNull() ?: return null
+    if (current.serverUrl != serverUrl || !assetIdPattern.matches(assetId)) return null
+    val temporary = File(cacheDirectory(context), ".${cacheKey(serverUrl, assetId)}.download")
+    val encoded = URLEncoder.encode(assetId, StandardCharsets.UTF_8.name())
+    return try {
+      downloadToFile(serverUrl, current.apiKey, "/assets/$encoded/original", temporary, trackProgress = false)
+      if (!validImage(temporary)) {
+        temporary.delete()
+        downloadToFile(serverUrl, current.apiKey, "/assets/$encoded/thumbnail?size=preview", temporary, trackProgress = false)
+      }
+      if (!validImage(temporary)) return null
+      if (!temporary.renameTo(target)) { temporary.copyTo(target, overwrite = true); temporary.delete() }
+      target.setLastModified(System.currentTimeMillis())
+      trimCache(context, target)
+      target
+    } catch (_: Exception) {
+      temporary.delete()
+      null
+    }
+  }
+
+  @Synchronized
+  fun deleteCachedOriginal(context: Context, serverUrl: String, assetId: String) {
+    val key = cacheKey(serverUrl, assetId)
+    File(cacheDirectory(context), "$key.image").delete()
+    File(cacheDirectory(context), ".$key.download").delete()
+  }
+
+  private fun trimCache(context: Context, protected: File) {
+    val files = cacheDirectory(context).listFiles()?.filter { it.isFile && !it.name.startsWith(".") }?.sortedBy { it.lastModified() } ?: return
+    var bytes = files.sumOf { it.length() }
+    for (file in files) {
+      if (bytes <= CACHE_MAX_BYTES) break
+      if (file != protected) {
+        val length = file.length()
+        if (file.delete()) bytes -= length
+      }
+    }
+  }
+
+  fun importAssets(context: Context, ids: List<String>): JSObject {
+    require(ids.isNotEmpty()) { "Wähle mindestens ein Immich-Bild aus." }
+    require(ids.size <= 100) { "Bitte importiere höchstens 100 Bilder auf einmal." }
+    val credentials = credentials(context)
+    val uniqueIds = ids.distinct()
+    importProgress.set(ImportProgress(active = true, total = uniqueIds.size))
+    try {
+      uniqueIds.forEachIndexed { index, id ->
+        importOne(context, credentials, id)
+        importProgress.updateAndGet { it.copy(completed = index + 1, bytesDownloaded = 0, bytesTotal = 0) }
+      }
+      return WallpaperStore.state(context)
+    } finally {
+      importProgress.updateAndGet { it.copy(active = false) }
+    }
+  }
+
+  fun importProgress(): JSObject = importProgress.get().let { progress ->
+    JSObject().apply {
+      put("active", progress.active)
+      put("completed", progress.completed)
+      put("total", progress.total)
+      put("bytesDownloaded", progress.bytesDownloaded)
+      put("bytesTotal", progress.bytesTotal)
+    }
+  }
+}

plugins/android/src/main/java/ImmichPrefetchWorker.kt

@@ -0,0 +1,37 @@
+package de.wechselbild.wallpaper
+
+import android.content.Context
+import androidx.work.Constraints
+import androidx.work.ExistingPeriodicWorkPolicy
+import androidx.work.NetworkType
+import androidx.work.PeriodicWorkRequestBuilder
+import androidx.work.WorkManager
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+import java.util.concurrent.TimeUnit
+
+class ImmichPrefetchWorker(context: Context, parameters: WorkerParameters) : Worker(context, parameters) {
+  override fun doWork(): Result {
+    WallpaperStore.prefetchImmichOriginals(applicationContext)
+    return Result.success()
+  }
+
+  companion object {
+    private const val WORK_NAME = "immich-wifi-prefetch"
+
+    fun enqueue(context: Context) {
+      val constraints = Constraints.Builder()
+        .setRequiredNetworkType(NetworkType.UNMETERED)
+        .setRequiresBatteryNotLow(true)
+        .build()
+      val request = PeriodicWorkRequestBuilder<ImmichPrefetchWorker>(6, TimeUnit.HOURS)
+        .setConstraints(constraints)
+        .build()
+      WorkManager.getInstance(context).enqueueUniquePeriodicWork(WORK_NAME, ExistingPeriodicWorkPolicy.KEEP, request)
+    }
+
+    fun cancel(context: Context) {
+      WorkManager.getInstance(context).cancelUniqueWork(WORK_NAME)
+    }
+  }
+}

plugins/android/src/main/java/ScreenOnRotationService.kt

@@ -0,0 +1,106 @@
+package de.wechselbild.wallpaper
+
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.app.Service
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.os.Build
+import android.os.IBinder
+import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
+import java.util.concurrent.Executors
+import java.util.concurrent.atomic.AtomicBoolean
+
+class ScreenOnRotationService : Service() {
+  private val worker = Executors.newSingleThreadExecutor()
+  private val rotating = AtomicBoolean(false)
+  private val changedWhileScreenOff = AtomicBoolean(false)
+  private val screenReceiver = object : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+      if (!WallpaperStore.screenOnEnabled(context)) return
+      when (intent.action) {
+        Intent.ACTION_SCREEN_OFF -> rotate(context, preparedForScreenOn = true)
+        Intent.ACTION_SCREEN_ON -> {
+          if (!changedWhileScreenOff.getAndSet(false)) rotate(context, preparedForScreenOn = false)
+        }
+      }
+    }
+  }
+
+  private fun rotate(context: Context, preparedForScreenOn: Boolean) {
+    if (!rotating.compareAndSet(false, true)) return
+    worker.execute {
+      try {
+        if (WallpaperStore.applyNext(context, automatic = true) && preparedForScreenOn) {
+          changedWhileScreenOff.set(true)
+        }
+      } finally { rotating.set(false) }
+    }
+  }
+
+  override fun onCreate() {
+    super.onCreate()
+    createChannel()
+    val launch = packageManager.getLaunchIntentForPackage(packageName)
+    val pending = PendingIntent.getActivity(this, 0, launch, PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT)
+    val notification = NotificationCompat.Builder(this, CHANNEL)
+      .setSmallIcon(android.R.drawable.ic_menu_gallery)
+      .setContentTitle(getString(R.string.wallpaper_service_title))
+      .setContentText(getString(R.string.wallpaper_service_text))
+      .setOngoing(true)
+      .setSilent(true)
+      .setContentIntent(pending)
+      .build()
+    startForeground(NOTIFICATION_ID, notification)
+    val filter = IntentFilter().apply {
+      addAction(Intent.ACTION_SCREEN_OFF)
+      addAction(Intent.ACTION_SCREEN_ON)
+    }
+    if (Build.VERSION.SDK_INT >= 33) {
+      registerReceiver(screenReceiver, filter, Context.RECEIVER_NOT_EXPORTED)
+    } else {
+      @Suppress("DEPRECATION")
+      registerReceiver(screenReceiver, filter)
+    }
+  }
+
+  override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+    if (!WallpaperStore.screenOnEnabled(this)) {
+      stopSelf()
+      return START_NOT_STICKY
+    }
+    return START_STICKY
+  }
+
+  override fun onBind(intent: Intent?): IBinder? = null
+
+  override fun onDestroy() {
+    runCatching { unregisterReceiver(screenReceiver) }
+    worker.shutdown()
+    super.onDestroy()
+  }
+
+  companion object {
+    private const val CHANNEL = "wechselbild_screen_on"
+    private const val NOTIFICATION_ID = 4217
+
+    fun start(context: Context) {
+      ContextCompat.startForegroundService(context, Intent(context, ScreenOnRotationService::class.java))
+    }
+
+    fun stop(context: Context) {
+      context.stopService(Intent(context, ScreenOnRotationService::class.java))
+    }
+  }
+
+  private fun createChannel() {
+    if (Build.VERSION.SDK_INT >= 26) {
+      val channel = NotificationChannel(CHANNEL, getString(R.string.wallpaper_channel_name), NotificationManager.IMPORTANCE_LOW)
+      getSystemService(NotificationManager::class.java).createNotificationChannel(channel)
+    }
+  }
+}

plugins/android/src/main/java/WallpaperAlarmReceiver.kt

@@ -0,0 +1,18 @@
+package de.wechselbild.wallpaper
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+
+class WallpaperAlarmReceiver : BroadcastReceiver() {
+  override fun onReceive(context: Context, intent: Intent) {
+    if (!WallpaperStore.timedEnabled(context)) {
+      WallpaperScheduler.cancel(context)
+      return
+    }
+    if (WallpaperScheduler.claimIfDue(context)) {
+      WallpaperRotationWorker.enqueue(context)
+    }
+    WallpaperScheduler.ensureScheduled(context)
+  }
+}

plugins/android/src/main/java/WallpaperPlugin.kt

@@ -9,6 +9,8 @@ import app.tauri.annotation.Command
 import app.tauri.annotation.InvokeArg
 import app.tauri.annotation.TauriPlugin
 import app.tauri.plugin.Invoke
+import app.tauri.plugin.JSArray
+import app.tauri.plugin.JSObject
 import app.tauri.plugin.Plugin
 import java.io.File
 import java.util.UUID
@@ -17,12 +19,21 @@ import java.util.concurrent.Executors
 @InvokeArg
 class SettingArgs { lateinit var name: String; var value: Boolean = false }
 
+@InvokeArg
+class IntervalArgs { var minutes: Int = 0 }
+
 @InvokeArg
 class GalleryArgs { var offset: Int = 0; var limit: Int = 48 }
 
 @InvokeArg
 class DeleteImageArgs { lateinit var id: String }
 
+@InvokeArg
+class ApplyWallpaperArgs { lateinit var id: String }
+
+@InvokeArg
+class DeleteImagesArgs { var ids: Array<String> = emptyArray() }
+
 @InvokeArg
 class ImageCropArgs {
   lateinit var id: String
@@ -30,13 +41,25 @@ class ImageCropArgs {
   var zoom: Double = 1.0
   var positionX: Double = 0.5
   var positionY: Double = 0.5
+  var rotation: Int = 0
 }
 
+@InvokeArg
+class ImmichConnectArgs { lateinit var serverUrl: String; lateinit var apiKey: String }
+
+@InvokeArg
+class ImmichAssetsArgs { var albumId: String? = null; var page: Int = 1; var size: Int = 30 }
+
+@InvokeArg
+class ImmichImportArgs { var ids: Array<String> = emptyArray() }
+
 @TauriPlugin
 class WallpaperPlugin(private val activity: Activity) : Plugin(activity) {
   private val io = Executors.newSingleThreadExecutor()
 
-  @Command fun getState(invoke: Invoke) = io.execute { invoke.resolve(WallpaperStore.state(activity)) }
+  @Command fun getState(invoke: Invoke) {
+    io.execute { invoke.resolve(WallpaperStore.state(activity)) }
+  }
 
   @Command fun getGallery(invoke: Invoke) = io.execute {
     try {
@@ -63,10 +86,23 @@ class WallpaperPlugin(private val activity: Activity) : Plugin(activity) {
     } catch (error: Exception) { invoke.reject(error.message ?: "Bild konnte nicht gelöscht werden") }
   }
 
+  @Command fun getImageIds(invoke: Invoke) = io.execute {
+    val ids = JSArray().apply { WallpaperStore.imageIds(activity).forEach { put(it) } }
+    invoke.resolve(JSObject().apply { put("ids", ids) })
+  }
+
+  @Command fun deleteImages(invoke: Invoke) = io.execute {
+    try {
+      val args = invoke.parseArgs(DeleteImagesArgs::class.java)
+      if (WallpaperStore.deleteMany(activity, args.ids.toList()) == 0) throw IllegalArgumentException("Keine Bilder gefunden")
+      invoke.resolve(WallpaperStore.state(activity))
+    } catch (error: Exception) { invoke.reject(error.message ?: "Bilder konnten nicht gelöscht werden") }
+  }
+
   @Command fun setImageCrop(invoke: Invoke) = io.execute {
     try {
       val args = invoke.parseArgs(ImageCropArgs::class.java)
-      val image = WallpaperStore.setCrop(activity, args.id, args.mode, args.zoom, args.positionX, args.positionY)
+      val image = WallpaperStore.setCrop(activity, args.id, args.mode, args.zoom, args.positionX, args.positionY, args.rotation)
         ?: throw IllegalArgumentException("Bild wurde nicht gefunden")
       invoke.resolve(image)
     } catch (error: Exception) { invoke.reject(error.message ?: "Bildausschnitt konnte nicht gespeichert werden") }
@@ -96,14 +132,75 @@ class WallpaperPlugin(private val activity: Activity) : Plugin(activity) {
     try {
       val args = invoke.parseArgs(SettingArgs::class.java)
       WallpaperStore.set(activity, args.name, args.value)
-      if (args.name == "enabled") {
-        if (args.value) WallpaperRotationService.start(activity) else WallpaperRotationService.stop(activity)
-      }
       invoke.resolve(WallpaperStore.state(activity))
     } catch (error: Exception) { invoke.reject(error.message ?: "Einstellung konnte nicht gespeichert werden") }
   }
 
+  @Command fun setInterval(invoke: Invoke) {
+    try {
+      val args = invoke.parseArgs(IntervalArgs::class.java)
+      WallpaperStore.setInterval(activity, args.minutes)
+      WallpaperScheduler.cancel(activity)
+      ScreenOnRotationService.stop(activity)
+      if (args.minutes == -1) ScreenOnRotationService.start(activity)
+      else if (args.minutes > 0) WallpaperScheduler.scheduleNext(activity)
+      invoke.resolve(WallpaperStore.state(activity))
+    } catch (error: Exception) { invoke.reject(error.message ?: "Wechselintervall konnte nicht gespeichert werden") }
+  }
+
   @Command fun nextWallpaper(invoke: Invoke) = io.execute {
-    if (WallpaperStore.applyNext(activity)) invoke.resolve(WallpaperStore.state(activity)) else invoke.reject("Bitte wähle zuerst Bilder aus")
+    try {
+      if (WallpaperStore.applyNext(activity)) invoke.resolve(WallpaperStore.state(activity))
+      else invoke.reject("Kein verfügbares Bild konnte angewendet werden")
+    } catch (error: Exception) { invoke.reject(error.message ?: "Das Hintergrundbild konnte nicht geändert werden") }
+  }
+
+  @Command fun applyWallpaper(invoke: Invoke) = io.execute {
+    try {
+      val args = invoke.parseArgs(ApplyWallpaperArgs::class.java)
+      if (WallpaperStore.apply(activity, args.id)) invoke.resolve(WallpaperStore.state(activity))
+      else invoke.reject("Bild konnte nicht angewendet werden")
+    } catch (error: Exception) { invoke.reject(error.message ?: "Das Hintergrundbild konnte nicht geändert werden") }
+  }
+
+  @Command fun getImmichConnection(invoke: Invoke) = io.execute {
+    invoke.resolve(ImmichClient.connection(activity))
+  }
+
+  @Command fun connectImmich(invoke: Invoke) = io.execute {
+    try {
+      val args = invoke.parseArgs(ImmichConnectArgs::class.java)
+      val result = ImmichClient.connect(activity, args.serverUrl, args.apiKey)
+      if (WallpaperStore.prefetchImmich(activity)) ImmichPrefetchWorker.enqueue(activity)
+      invoke.resolve(result)
+    } catch (error: Exception) { invoke.reject(error.message ?: "Immich-Verbindung fehlgeschlagen") }
+  }
+
+  @Command fun disconnectImmich(invoke: Invoke) = io.execute {
+    ImmichPrefetchWorker.cancel(activity)
+    invoke.resolve(ImmichClient.disconnect(activity))
+  }
+
+  @Command fun getImmichAlbums(invoke: Invoke) = io.execute {
+    try { invoke.resolve(ImmichClient.albums(activity)) }
+    catch (error: Exception) { invoke.reject(error.message ?: "Immich-Alben konnten nicht geladen werden") }
+  }
+
+  @Command fun getImmichAssets(invoke: Invoke) = io.execute {
+    try {
+      val args = invoke.parseArgs(ImmichAssetsArgs::class.java)
+      invoke.resolve(ImmichClient.assets(activity, args.albumId, args.page, args.size))
+    } catch (error: Exception) { invoke.reject(error.message ?: "Immich-Bilder konnten nicht geladen werden") }
+  }
+
+  @Command fun importImmichAssets(invoke: Invoke) = io.execute {
+    try {
+      val args = invoke.parseArgs(ImmichImportArgs::class.java)
+      invoke.resolve(ImmichClient.importAssets(activity, args.ids.toList()))
+    } catch (error: Exception) { invoke.reject(error.message ?: "Immich-Bilder konnten nicht importiert werden") }
+  }
+
+  @Command fun getImmichImportProgress(invoke: Invoke) {
+    invoke.resolve(ImmichClient.importProgress())
   }
 }

plugins/android/src/main/java/WallpaperRotationService.kt

@@ -1,56 +0,0 @@
-package de.wechselbild.wallpaper
-
-import android.app.NotificationChannel
-import android.app.NotificationManager
-import android.app.PendingIntent
-import android.app.Service
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.os.Build
-import android.os.IBinder
-import androidx.core.app.NotificationCompat
-import androidx.core.content.ContextCompat
-import java.util.concurrent.Executors
-
-class WallpaperRotationService : Service() {
-  private val worker = Executors.newSingleThreadExecutor()
-  private val screenReceiver = object : BroadcastReceiver() {
-    override fun onReceive(context: Context, intent: Intent) {
-      if (intent.action == Intent.ACTION_SCREEN_ON && WallpaperStore.enabled(context)) worker.execute { WallpaperStore.applyNext(context) }
-    }
-  }
-
-  override fun onCreate() {
-    super.onCreate()
-    createChannel()
-    val launch = packageManager.getLaunchIntentForPackage(packageName)
-    val pending = PendingIntent.getActivity(this, 0, launch, PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT)
-    val notification = NotificationCompat.Builder(this, CHANNEL)
-      .setSmallIcon(android.R.drawable.ic_menu_gallery)
-      .setContentTitle(getString(R.string.wallpaper_service_title))
-      .setContentText(getString(R.string.wallpaper_service_text))
-      .setOngoing(true).setSilent(true).setContentIntent(pending).build()
-    startForeground(NOTIFICATION_ID, notification)
-    ContextCompat.registerReceiver(this, screenReceiver, IntentFilter(Intent.ACTION_SCREEN_ON), ContextCompat.RECEIVER_NOT_EXPORTED)
-  }
-
-  override fun onStartCommand(intent: Intent?, flags: Int, startId: Int) = START_STICKY
-  override fun onBind(intent: Intent?): IBinder? = null
-  override fun onDestroy() { runCatching { unregisterReceiver(screenReceiver) }; worker.shutdown(); super.onDestroy() }
-
-  private fun createChannel() {
-    if (Build.VERSION.SDK_INT >= 26) {
-      val channel = NotificationChannel(CHANNEL, getString(R.string.wallpaper_channel_name), NotificationManager.IMPORTANCE_LOW)
-      getSystemService(NotificationManager::class.java).createNotificationChannel(channel)
-    }
-  }
-
-  companion object {
-    private const val CHANNEL = "wechselbild_rotation"
-    private const val NOTIFICATION_ID = 4217
-    fun start(context: Context) = ContextCompat.startForegroundService(context, Intent(context, WallpaperRotationService::class.java))
-    fun stop(context: Context) { context.stopService(Intent(context, WallpaperRotationService::class.java)) }
-  }
-}

plugins/android/src/main/java/WallpaperRotationWorker.kt

@@ -0,0 +1,31 @@
+package de.wechselbild.wallpaper
+
+import android.content.Context
+import androidx.work.ExistingWorkPolicy
+import androidx.work.Constraints
+import androidx.work.OneTimeWorkRequestBuilder
+import androidx.work.WorkManager
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+
+class WallpaperRotationWorker(context: Context, parameters: WorkerParameters) : Worker(context, parameters) {
+  override fun doWork(): Result {
+    if (!WallpaperStore.timedEnabled(applicationContext)) return Result.success()
+    WallpaperStore.applyNext(applicationContext, automatic = true)
+    return Result.success()
+  }
+
+  companion object {
+    private const val WORK_NAME = "wallpaper-rotation"
+
+    fun enqueue(context: Context) {
+      WorkManager.getInstance(context).enqueueUniqueWork(
+        WORK_NAME,
+        ExistingWorkPolicy.KEEP,
+        OneTimeWorkRequestBuilder<WallpaperRotationWorker>()
+          .setConstraints(Constraints.Builder().setRequiresBatteryNotLow(true).build())
+          .build(),
+      )
+    }
+  }
+}

plugins/android/src/main/java/WallpaperScheduler.kt

@@ -0,0 +1,63 @@
+package de.wechselbild.wallpaper
+
+import android.app.AlarmManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.os.SystemClock
+
+object WallpaperScheduler {
+  private const val PREFS = "wechselbild"
+  private const val KEY_NEXT_TRIGGER = "next_rotation_elapsed"
+  private const val REQUEST_CODE = 4218
+
+  fun ensureScheduled(context: Context) {
+    if (!WallpaperStore.timedEnabled(context)) {
+      cancel(context)
+      return
+    }
+    val now = SystemClock.elapsedRealtime()
+    val storedTrigger = preferences(context).getLong(KEY_NEXT_TRIGGER, 0L)
+    val interval = WallpaperStore.intervalMinutes(context) * 60_000L
+    if (storedTrigger <= now || storedTrigger > now + interval) scheduleNext(context)
+  }
+
+  @Synchronized
+  fun claimIfDue(context: Context): Boolean {
+    val preferences = preferences(context)
+    val trigger = preferences.getLong(KEY_NEXT_TRIGGER, 0L)
+    if (trigger <= 0L || trigger > SystemClock.elapsedRealtime() + 1_000L) return false
+    scheduleNext(context)
+    return true
+  }
+
+  @Synchronized
+  fun scheduleNext(context: Context) {
+    val minutes = WallpaperStore.intervalMinutes(context)
+    if (minutes <= 0) {
+      cancel(context)
+      return
+    }
+    val trigger = SystemClock.elapsedRealtime() + minutes * 60_000L
+    val alarmManager = context.getSystemService(AlarmManager::class.java)
+    val operation = operation(context)
+    val window = (minutes * 60_000L / 10).coerceIn(60_000L, 15 * 60_000L)
+    alarmManager.setWindow(AlarmManager.ELAPSED_REALTIME, trigger, window, operation)
+    preferences(context).edit().putLong(KEY_NEXT_TRIGGER, trigger).commit()
+  }
+
+  fun cancel(context: Context) {
+    context.getSystemService(AlarmManager::class.java).cancel(operation(context))
+    preferences(context).edit().remove(KEY_NEXT_TRIGGER).apply()
+  }
+
+  private fun operation(context: Context) = PendingIntent.getBroadcast(
+    context,
+    REQUEST_CODE,
+    Intent(context, WallpaperAlarmReceiver::class.java),
+    PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
+  )
+
+  private fun preferences(context: Context) =
+    context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+}

plugins/android/src/main/java/WallpaperStore.kt

@@ -9,151 +9,304 @@ import android.graphics.Color
 import android.graphics.Matrix
 import android.graphics.Paint
 import android.util.Base64
+import android.util.LruCache
 import app.tauri.plugin.JSArray
 import app.tauri.plugin.JSObject
 import java.io.ByteArrayOutputStream
 import java.io.File
-import kotlin.random.Random
+import java.security.MessageDigest
 import org.json.JSONObject
 
 object WallpaperStore {
   private const val PREFS = "wechselbild"
   private const val KEY_INDEX = "current_index"
+  private const val KEY_CURRENT_ID = "current_entry_id"
+  private const val KEY_INTERVAL = "interval_minutes"
+  private const val KEY_SHUFFLE_SEEN_IDS = "shuffle_seen_ids"
   private const val CROP_PREFIX = "crop_"
-  private data class CropSettings(val mode: String = "cover", val zoom: Double = 1.0, val x: Double = 0.5, val y: Double = 0.5)
+  private const val INVALID_PREFIX = "invalid_"
-  fun directory(context: Context) = File(context.filesDir, "wallpapers").apply { mkdirs() }
+  private const val RENDER_CACHE_MAX_BYTES = 128L * 1024 * 1024
-  fun files(context: Context) = directory(context).listFiles()?.filter { it.isFile }?.sortedBy { it.name } ?: emptyList()
+  private const val THUMBNAIL_CACHE_MAX_BYTES = 64L * 1024 * 1024
-  private fun prefs(context: Context) = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+  private const val HOME_PREVIEW_LIMIT = 12
+  private val thumbnailCache = LruCache<String, String>(48)
 
-  fun enabled(context: Context) = prefs(context).getBoolean("enabled", false)
+  private data class CropSettings(val mode: String = "cover", val zoom: Double = 1.0, val x: Double = 0.5, val y: Double = 0.5, val rotation: Int = 0)
-  fun shuffle(context: Context) = prefs(context).getBoolean("shuffle", true)
+  private sealed class Entry {
-  fun lockOnly(context: Context) = prefs(context).getBoolean("lockScreenOnly", true)
+    abstract val id: String
-
+    abstract val preview: File
-  fun set(context: Context, name: String, value: Boolean) {
+    data class Local(val file: File) : Entry() { override val id = file.name; override val preview = file }
-    require(name in setOf("enabled", "shuffle", "lockScreenOnly")) { "Unbekannte Einstellung" }
+    data class Immich(
-    prefs(context).edit().putBoolean(name, value).apply()
+      override val id: String,
+      val assetId: String,
+      val serverUrl: String,
+      val addedAt: Long,
+      val metadata: File,
+      override val preview: File,
+    ) : Entry()
   }
 
-  fun state(context: Context): JSObject {
+  fun directory(context: Context) = File(context.filesDir, "wallpapers").apply { mkdirs() }
-    val originals = files(context)
+  fun files(context: Context) = directory(context).listFiles()?.filter { it.isFile && !it.name.startsWith(".") }?.sortedBy { it.name } ?: emptyList()
-    val index = prefs(context).getInt(KEY_INDEX, 0).coerceIn(0, (originals.size - 1).coerceAtLeast(0))
+  private fun immichRoot(context: Context) = File(context.filesDir, "immich-wallpapers").apply { mkdirs() }
-    val previewFiles = if (index < 24) originals.take(24) else listOf(originals[index]) + originals.take(23)
+  private fun immichEntries(context: Context) = File(immichRoot(context), "entries").apply { mkdirs() }
-    val previewIndex = if (index < 24) index else 0
+  private fun immichPreviews(context: Context) = File(immichRoot(context), "previews").apply { mkdirs() }
+  private fun prefs(context: Context) = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+  private fun renderedDirectory(context: Context) = File(context.cacheDir, "rendered-wallpapers").apply { mkdirs() }
+  private fun thumbnailDirectory(context: Context) = File(context.cacheDir, "wallpaper-thumbnails").apply { mkdirs() }
+
+  private fun serverKey(serverUrl: String): String = MessageDigest.getInstance("SHA-256")
+    .digest(serverUrl.toByteArray(Charsets.UTF_8)).take(6).joinToString("") { "%02x".format(it) }
+
+  private fun virtualKey(serverUrl: String, assetId: String) = "${serverKey(serverUrl)}-$assetId"
+  private fun virtualId(serverUrl: String, assetId: String) = "immich:${serverKey(serverUrl)}:$assetId"
+
+  private fun entries(context: Context): List<Entry> {
+    val local = files(context).map { Entry.Local(it) }
+    val virtual = immichEntries(context).listFiles()?.filter { it.isFile && it.extension == "json" }?.mapNotNull { metadata ->
+      runCatching {
+        val json = JSONObject(metadata.readText())
+        val serverUrl = json.getString("serverUrl")
+        val assetId = json.getString("assetId")
+        val preview = File(immichPreviews(context), "${virtualKey(serverUrl, assetId)}.preview")
+        if (!preview.isFile) return@runCatching null
+        Entry.Immich(
+          id = virtualId(serverUrl, assetId),
+          assetId = assetId,
+          serverUrl = serverUrl,
+          addedAt = json.optLong("addedAt", metadata.lastModified()),
+          metadata = metadata,
+          preview = preview,
+        )
+      }.getOrNull()
+    }?.filterNotNull()?.sortedWith(compareBy<Entry.Immich> { it.addedAt }.thenBy { it.id }) ?: emptyList()
+    return local + virtual
+  }
+
+  private fun currentIndex(context: Context, items: List<Entry>): Int {
+    if (items.isEmpty()) return 0
+    val preferences = prefs(context)
+    val currentId = preferences.getString(KEY_CURRENT_ID, null)
+    val byId = items.indexOfFirst { it.id == currentId }
+    if (byId >= 0) return byId
+    val legacy = preferences.getInt(KEY_INDEX, 0).coerceIn(0, items.lastIndex)
+    preferences.edit().putString(KEY_CURRENT_ID, items[legacy].id).apply()
+    return legacy
+  }
+
+  fun intervalMinutes(context: Context): Int {
+    val preferences = prefs(context)
+    return if (preferences.contains(KEY_INTERVAL)) preferences.getInt(KEY_INTERVAL, 0)
+    else if (preferences.getBoolean("enabled", false)) 30 else 0
+  }
+  fun enabled(context: Context) = intervalMinutes(context) != 0
+  fun timedEnabled(context: Context) = intervalMinutes(context) > 0
+  fun screenOnEnabled(context: Context) = intervalMinutes(context) == -1
+  fun shuffle(context: Context) = prefs(context).getBoolean("shuffle", true)
+  fun lockOnly(context: Context) = prefs(context).getBoolean("lockScreenOnly", true)
+  fun allowMobileData(context: Context) = prefs(context).getBoolean("allowMobileData", false)
+  fun prefetchImmich(context: Context) = prefs(context).getBoolean("prefetchImmich", true)
+
+  fun set(context: Context, name: String, value: Boolean) {
+    require(name in setOf("shuffle", "lockScreenOnly", "allowMobileData", "prefetchImmich")) { "Unbekannte Einstellung" }
+    val editor = prefs(context).edit().putBoolean(name, value)
+    if (name == "shuffle") editor.remove(KEY_SHUFFLE_SEEN_IDS)
+    editor.apply()
+    if (name == "prefetchImmich") {
+      if (value && ImmichClient.configured(context)) ImmichPrefetchWorker.enqueue(context)
+      else if (!value) ImmichPrefetchWorker.cancel(context)
+    }
+  }
+
+  fun setInterval(context: Context, minutes: Int) {
+    require(minutes == -1 || minutes == 0 || minutes in 5..720) { "Ungültiges Wechselintervall" }
+    prefs(context).edit().putInt(KEY_INTERVAL, minutes).putBoolean("enabled", minutes != 0).commit()
+  }
+
+  @Synchronized
+  fun state(context: Context, includePreviews: Boolean = true): JSObject {
+    val items = entries(context)
+    val index = currentIndex(context, items)
+    val previewItems = if (index < HOME_PREVIEW_LIMIT) items.take(HOME_PREVIEW_LIMIT) else listOf(items[index]) + items.take(HOME_PREVIEW_LIMIT - 1)
+    val previewIndex = if (index < HOME_PREVIEW_LIMIT) index else 0
     return JSObject().apply {
-      put("imageCount", originals.size)
+      put("imageCount", items.size)
       put("enabled", enabled(context))
+      put("intervalMinutes", intervalMinutes(context))
       put("shuffle", shuffle(context))
       put("lockScreenOnly", lockOnly(context))
+      put("allowMobileData", allowMobileData(context))
+      put("prefetchImmich", prefetchImmich(context))
       put("currentIndex", previewIndex)
+      put("currentId", items.getOrNull(index)?.id ?: JSONObject.NULL)
+      val ids = JSArray()
+      previewItems.forEach { ids.put(it.id) }
+      put("imageIds", ids)
       val previews = JSArray()
-      previewFiles.forEach { previews.put(thumbnailDataUrl(it)) }
+      if (includePreviews) previewItems.forEach { previews.put(thumbnailDataUrl(context, it.preview)) }
       put("imageUrls", previews)
     }
   }
 
+  @Synchronized
   fun gallery(context: Context, offset: Int, limit: Int): JSObject {
-    val originals = files(context)
+    val items = entries(context)
-    val selectedIndex = prefs(context).getInt(KEY_INDEX, 0).coerceIn(0, (originals.size - 1).coerceAtLeast(0))
+    val selectedIndex = currentIndex(context, items)
-    val safeOffset = offset.coerceAtLeast(0).coerceAtMost(originals.size)
+    val safeOffset = offset.coerceAtLeast(0).coerceAtMost(items.size)
     val safeLimit = limit.coerceIn(1, 100)
-    val items = JSArray()
+    val page = JSArray()
-    originals.drop(safeOffset).take(safeLimit).forEachIndexed { pageIndex, file ->
+    items.drop(safeOffset).take(safeLimit).forEachIndexed { pageIndex, entry ->
-      items.put(galleryImage(context, file, safeOffset + pageIndex == selectedIndex))
+      page.put(galleryImage(context, entry, safeOffset + pageIndex == selectedIndex))
     }
-    return JSObject().apply {
+    return JSObject().apply { put("total", items.size); put("items", page) }
-      put("total", originals.size)
+  }
-      put("items", items)
+
+  @Synchronized
+  fun imageIds(context: Context) = entries(context).map { it.id }
+
+  fun prefetchImmichOriginals(context: Context) {
+    val unavailableServers = mutableSetOf<String>()
+    entries(context).filterIsInstance<Entry.Immich>().forEach { entry ->
+      if (entry.serverUrl in unavailableServers) return@forEach
+      if (ImmichClient.cachedOriginal(context, entry.serverUrl, entry.assetId, allowNetwork = true) == null) {
+        unavailableServers.add(entry.serverUrl)
+      }
     }
   }
 
   private fun cropKey(id: String) = CROP_PREFIX + id
-
+  private fun crop(context: Context, entry: Entry): CropSettings {
-  private fun crop(context: Context, file: File): CropSettings {
+    val raw = prefs(context).getString(cropKey(entry.id), null) ?: return CropSettings()
-    val raw = prefs(context).getString(cropKey(file.name), null) ?: return CropSettings()
     return try {
       val json = JSONObject(raw)
       CropSettings(
         mode = if (json.optString("mode") == "contain") "contain" else "cover",
-        zoom = json.optDouble("zoom", 1.0).coerceIn(0.35, 3.0),
+        zoom = json.optDouble("zoom", 1.0).coerceIn(1.0, 3.0),
         x = json.optDouble("x", 0.5).coerceIn(0.0, 1.0),
         y = json.optDouble("y", 0.5).coerceIn(0.0, 1.0),
+        rotation = json.optInt("rotation", 0).let { ((it % 360) + 360) % 360 }.let { if (it % 90 == 0) it else 0 },
       )
     } catch (_: Exception) { CropSettings() }
   }
 
-  private fun galleryImage(context: Context, file: File, selected: Boolean): JSObject {
+  private fun galleryImage(context: Context, entry: Entry, selected: Boolean): JSObject {
-    val crop = crop(context, file)
+    val crop = crop(context, entry)
     return JSObject().apply {
-      put("id", file.name)
+      put("id", entry.id)
-      put("url", thumbnailDataUrl(file))
+      put("url", thumbnailDataUrl(context, entry.preview))
       put("selected", selected)
       put("cropMode", crop.mode)
       put("cropZoom", crop.zoom)
       put("cropPositionX", crop.x)
       put("cropPositionY", crop.y)
+      put("cropRotation", crop.rotation)
     }
   }
 
   @Synchronized
-  fun setCrop(context: Context, id: String, mode: String, zoom: Double, x: Double, y: Double): JSObject? {
+  fun setCrop(context: Context, id: String, mode: String, zoom: Double, x: Double, y: Double, rotation: Int): JSObject? {
-    if (id.isBlank() || File(id).name != id) return null
+    val items = entries(context)
-    val file = files(context).firstOrNull { it.name == id } ?: return null
+    val entry = items.firstOrNull { it.id == id } ?: return null
     val normalized = CropSettings(
       mode = if (mode == "contain") "contain" else "cover",
-      zoom = zoom.coerceIn(0.35, 3.0),
+      zoom = zoom.coerceIn(1.0, 3.0), x = x.coerceIn(0.0, 1.0), y = y.coerceIn(0.0, 1.0),
-      x = x.coerceIn(0.0, 1.0),
+      rotation = ((rotation % 360) + 360) % 360,
-      y = y.coerceIn(0.0, 1.0),
     )
+    require(normalized.rotation % 90 == 0) { "Ungültige Bilddrehung" }
     val json = JSONObject().apply {
-      put("mode", normalized.mode)
+      put("mode", normalized.mode); put("zoom", normalized.zoom); put("x", normalized.x); put("y", normalized.y); put("rotation", normalized.rotation)
-      put("zoom", normalized.zoom)
-      put("x", normalized.x)
-      put("y", normalized.y)
     }
     prefs(context).edit().putString(cropKey(id), json.toString()).apply()
-    val selectedIndex = prefs(context).getInt(KEY_INDEX, 0)
+    return galleryImage(context, entry, items.indexOf(entry) == currentIndex(context, items))
-    return galleryImage(context, file, files(context).indexOf(file) == selectedIndex)
   }
 
   @Synchronized
-  fun delete(context: Context, id: String): Boolean {
+  fun addImmich(context: Context, serverUrl: String, assetId: String, previewSource: File): Boolean {
-    if (id.isBlank() || File(id).name != id) return false
+    val key = virtualKey(serverUrl, assetId)
-    val originals = files(context)
+    val metadata = File(immichEntries(context), "$key.json")
-    val position = originals.indexOfFirst { it.name == id }
+    val preview = File(immichPreviews(context), "$key.preview")
-    if (position < 0 || !originals[position].delete()) return false
+    if (metadata.isFile && preview.isFile) return false
-
+    val previewTemp = File(immichPreviews(context), ".$key.preview.tmp")
-    val preferences = prefs(context)
+    val metadataTemp = File(immichEntries(context), ".$key.json.tmp")
-    val previousIndex = preferences.getInt(KEY_INDEX, 0).coerceIn(0, (originals.size - 1).coerceAtLeast(0))
+    try {
-    val remaining = originals.size - 1
+      previewSource.copyTo(previewTemp, overwrite = true)
-    val nextIndex = when {
+      val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
-      remaining <= 0 -> 0
+      BitmapFactory.decodeFile(previewTemp.absolutePath, bounds)
-      position < previousIndex -> previousIndex - 1
+      require(bounds.outWidth > 0 && bounds.outHeight > 0) { "Immich-Vorschau konnte nicht gelesen werden." }
-      previousIndex >= remaining -> remaining - 1
+      if (!previewTemp.renameTo(preview)) { previewTemp.copyTo(preview, overwrite = true); previewTemp.delete() }
-      else -> previousIndex
+      metadataTemp.writeText(JSONObject().apply {
+        put("version", 1); put("serverUrl", serverUrl); put("assetId", assetId); put("addedAt", System.currentTimeMillis())
+      }.toString())
+      if (!metadataTemp.renameTo(metadata)) { metadataTemp.copyTo(metadata, overwrite = true); metadataTemp.delete() }
+      return true
+    } catch (error: Exception) {
+      previewTemp.delete()
+      metadataTemp.delete()
+      if (!metadata.isFile) preview.delete()
+      throw error
     }
-    preferences.edit().remove(cropKey(id)).putInt(KEY_INDEX, nextIndex).apply()
+  }
-    return true
+
+  fun hasImmich(context: Context, serverUrl: String, assetId: String) = File(immichEntries(context), "${virtualKey(serverUrl, assetId)}.json").isFile
+
+  @Synchronized
+  fun delete(context: Context, id: String) = deleteMany(context, listOf(id)) == 1
+
+  @Synchronized
+  fun deleteMany(context: Context, ids: List<String>): Int {
+    val requested = ids.toSet()
+    val items = entries(context)
+    val current = items.getOrNull(currentIndex(context, items))
+    val deleted = items.filter { it.id in requested }.filter { entry ->
+      when (entry) {
+        is Entry.Local -> entry.file.delete().also { if (it) removeThumbnail(entry.preview) }
+        is Entry.Immich -> {
+          entry.metadata.delete().also { removed ->
+            if (removed) {
+              removeThumbnail(entry.preview)
+              entry.preview.delete()
+              ImmichClient.deleteCachedOriginal(context, entry.serverUrl, entry.assetId)
+            }
+          }
+        }
+      }
+    }
+    if (deleted.isEmpty()) return 0
+    val editor = prefs(context).edit()
+    deleted.forEach { editor.remove(cropKey(it.id)) }
+    val remaining = entries(context)
+    val retained = current?.let { item -> remaining.indexOfFirst { it.id == item.id } } ?: -1
+    if (remaining.isEmpty()) editor.remove(KEY_CURRENT_ID).putInt(KEY_INDEX, 0)
+    else {
+      val next = if (retained >= 0) retained else currentIndex(context, items).coerceAtMost(remaining.lastIndex)
+      editor.putString(KEY_CURRENT_ID, remaining[next].id).putInt(KEY_INDEX, next)
+    }
+    editor.apply()
+    return deleted.size
   }
 
   private fun renderForScreen(context: Context, source: Bitmap, crop: CropSettings): Bitmap {
     val metrics = context.resources.displayMetrics
     val targetWidth = metrics.widthPixels.coerceAtLeast(1)
     val targetHeight = metrics.heightPixels.coerceAtLeast(1)
-    val widthScale = targetWidth.toDouble() / source.width
+    val quarterTurn = crop.rotation == 90 || crop.rotation == 270
-    val heightScale = targetHeight.toDouble() / source.height
+    val rotatedWidth = if (quarterTurn) source.height else source.width
+    val rotatedHeight = if (quarterTurn) source.width else source.height
+    val widthScale = targetWidth.toDouble() / rotatedWidth
+    val heightScale = targetHeight.toDouble() / rotatedHeight
     val baseScale = if (crop.mode == "contain") minOf(widthScale, heightScale) else maxOf(widthScale, heightScale)
     val scale = (baseScale * crop.zoom).toFloat()
-    val scaledWidth = source.width * scale
+    val scaledWidth = rotatedWidth * scale
-    val scaledHeight = source.height * scale
+    val scaledHeight = rotatedHeight * scale
     val left = ((targetWidth - scaledWidth) * crop.x).toFloat()
     val top = ((targetHeight - scaledHeight) * crop.y).toFloat()
-
     return Bitmap.createBitmap(targetWidth, targetHeight, Bitmap.Config.ARGB_8888).also { output ->
       val canvas = Canvas(output)
       canvas.drawColor(Color.BLACK)
       val matrix = Matrix().apply {
-        setScale(scale, scale)
+        postTranslate(-source.width / 2f, -source.height / 2f)
-        postTranslate(left, top)
+        postRotate(crop.rotation.toFloat())
+        postScale(scale, scale)
+        postTranslate(left + scaledWidth / 2f, top + scaledHeight / 2f)
       }
       canvas.drawBitmap(source, matrix, Paint(Paint.ANTI_ALIAS_FLAG or Paint.FILTER_BITMAP_FLAG))
     }
@@ -163,49 +316,176 @@ object WallpaperStore {
     val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
     BitmapFactory.decodeFile(file.absolutePath, bounds)
     if (bounds.outWidth <= 0 || bounds.outHeight <= 0) return null
-    val metrics = context.resources.displayMetrics
+    val targetLongSide = maxOf(context.resources.displayMetrics.widthPixels, context.resources.displayMetrics.heightPixels).coerceAtLeast(1)
-    val targetLongSide = maxOf(metrics.widthPixels, metrics.heightPixels).coerceAtLeast(1)
     var sample = 1
     while (maxOf(bounds.outWidth, bounds.outHeight) / (sample * 2) >= targetLongSide) sample *= 2
-    return BitmapFactory.decodeFile(file.absolutePath, BitmapFactory.Options().apply {
+    return BitmapFactory.decodeFile(file.absolutePath, BitmapFactory.Options().apply { inSampleSize = sample; inPreferredConfig = Bitmap.Config.ARGB_8888 })
-      inSampleSize = sample
-      inPreferredConfig = Bitmap.Config.ARGB_8888
-    })
   }
 
-  private fun thumbnailDataUrl(file: File): String {
+  private fun thumbnailDataUrl(context: Context, file: File): String {
+    val cacheKey = "${file.absolutePath}:${file.lastModified()}:${file.length()}"
+    thumbnailCache.get(cacheKey)?.let { return it }
+    val cached = File(thumbnailDirectory(context), "${digest(cacheKey)}.jpg")
+    if (cached.isFile) {
+      cached.setLastModified(System.currentTimeMillis())
+      val result = "data:image/jpeg;base64," + Base64.encodeToString(cached.readBytes(), Base64.NO_WRAP)
+      thumbnailCache.put(cacheKey, result)
+      return result
+    }
     val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
     BitmapFactory.decodeFile(file.absolutePath, bounds)
     var sample = 1
     while (bounds.outWidth / sample > 360 || bounds.outHeight / sample > 480) sample *= 2
     val bitmap = BitmapFactory.decodeFile(file.absolutePath, BitmapFactory.Options().apply { inSampleSize = sample }) ?: return ""
-    return ByteArrayOutputStream().use { out ->
+    val result = ByteArrayOutputStream().use { out ->
-      bitmap.compress(Bitmap.CompressFormat.JPEG, 76, out)
+      bitmap.compress(Bitmap.CompressFormat.JPEG, 76, out); bitmap.recycle()
-      bitmap.recycle()
+      val bytes = out.toByteArray()
-      "data:image/jpeg;base64," + Base64.encodeToString(out.toByteArray(), Base64.NO_WRAP)
+      runCatching { cached.writeBytes(bytes); trimDirectory(thumbnailDirectory(context), THUMBNAIL_CACHE_MAX_BYTES, cached) }
+      "data:image/jpeg;base64," + Base64.encodeToString(bytes, Base64.NO_WRAP)
+    }
+    thumbnailCache.put(cacheKey, result)
+    return result
+  }
+
+  private fun removeThumbnail(file: File) {
+    thumbnailCache.remove("${file.absolutePath}:${file.lastModified()}:${file.length()}")
+  }
+
+  private fun digest(value: String): String = MessageDigest.getInstance("SHA-256")
+    .digest(value.toByteArray(Charsets.UTF_8)).joinToString("") { "%02x".format(it) }
+
+  private fun renderedFile(context: Context, entry: Entry): File {
+    val metrics = context.resources.displayMetrics
+    val sourceVersion = when (entry) {
+      is Entry.Local -> "${entry.file.lastModified()}:${entry.file.length()}"
+      is Entry.Immich -> entry.assetId
+    }
+    val key = "${entry.id}:$sourceVersion:${metrics.widthPixels}x${metrics.heightPixels}:${prefs(context).getString(cropKey(entry.id), "")}"
+    return File(renderedDirectory(context), "${digest(key)}.jpg")
+  }
+
+  private fun sourceVersion(entry: Entry): String = when (entry) {
+    is Entry.Local -> "${entry.file.lastModified()}:${entry.file.length()}"
+    is Entry.Immich -> entry.assetId
+  }
+
+  private fun validImage(file: File): Boolean {
+    if (!file.isFile || file.length() <= 0) return false
+    val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+    BitmapFactory.decodeFile(file.absolutePath, bounds)
+    return bounds.outWidth > 0 && bounds.outHeight > 0
+  }
+
+  private fun trimDirectory(directory: File, maxBytes: Long, protected: File) {
+    val files = directory.listFiles()?.filter { it.isFile }?.sortedBy { it.lastModified() } ?: return
+    var bytes = files.sumOf { it.length() }
+    for (file in files) {
+      if (bytes <= maxBytes) break
+      if (file != protected) {
+        val length = file.length()
+        if (file.delete()) bytes -= length
+      }
     }
   }
 
   @Synchronized
-  fun applyNext(context: Context): Boolean {
+  fun applyNext(context: Context, automatic: Boolean = false): Boolean {
-    val images = files(context)
+    val items = entries(context)
-    if (images.isEmpty()) return false
+    if (items.isEmpty()) return false
-    val preferences = prefs(context)
+    val previous = currentIndex(context, items)
-    val previous = preferences.getInt(KEY_INDEX, -1)
+    if (shuffle(context) && items.size > 1) {
-    val index = if (shuffle(context) && images.size > 1) {
+      val availableIds = items.mapTo(mutableSetOf()) { it.id }
-      generateSequence { Random.nextInt(images.size) }.first { it != previous }
+      val seenIds = prefs(context).getStringSet(KEY_SHUFFLE_SEEN_IDS, emptySet())
-    } else (previous + 1).mod(images.size)
+        .orEmpty().filterTo(mutableSetOf()) { it in availableIds }
-    val bitmap = decodeForScreen(context, images[index]) ?: return false
+      seenIds.add(items[previous].id)
-    val rendered = renderForScreen(context, bitmap, crop(context, images[index]))
+
-    try {
+      var candidates = items.indices.filter { items[it].id !in seenIds }.shuffled()
-      val manager = WallpaperManager.getInstance(context)
+      if (candidates.isEmpty()) {
-      if (android.os.Build.VERSION.SDK_INT >= 24 && lockOnly(context)) manager.setBitmap(rendered, null, true, WallpaperManager.FLAG_LOCK)
+        seenIds.clear()
-      else manager.setBitmap(rendered)
+        seenIds.add(items[previous].id)
-      preferences.edit().putInt(KEY_INDEX, index).apply()
+        candidates = items.indices.filter { it != previous }.shuffled()
-      return true
+      }
-    } finally {
+      return applyCandidates(context, items, candidates, automatic, seenIds)
-      rendered.recycle()
-      bitmap.recycle()
     }
+    val candidates = (1..items.size).map { (previous + it).mod(items.size) }
+    return applyCandidates(context, items, candidates, automatic)
+  }
+
+  @Synchronized
+  fun apply(context: Context, id: String): Boolean {
+    val items = entries(context)
+    val index = items.indexOfFirst { it.id == id }
+    if (index < 0) return false
+    val seenIds = if (shuffle(context)) {
+      val availableIds = items.mapTo(mutableSetOf()) { it.id }
+      prefs(context).getStringSet(KEY_SHUFFLE_SEEN_IDS, emptySet())
+        .orEmpty().filterTo(mutableSetOf()) { it in availableIds }
+    } else null
+    return applyCandidates(context, items, listOf(index), automatic = false, seenIds)
+  }
+
+  private fun applyCandidates(
+    context: Context,
+    items: List<Entry>,
+    candidates: List<Int>,
+    automatic: Boolean,
+    shuffleSeenIds: Set<String>? = null,
+  ): Boolean {
+    val unavailableServers = mutableSetOf<String>()
+    for (index in candidates) {
+      val entry = items[index]
+      val renderedFile = renderedFile(context, entry)
+      var rendered = if (validImage(renderedFile)) {
+        renderedFile.setLastModified(System.currentTimeMillis())
+        BitmapFactory.decodeFile(renderedFile.absolutePath)
+      } else null
+      if (rendered == null) {
+        renderedFile.delete()
+        if (prefs(context).getString(INVALID_PREFIX + entry.id, null) == sourceVersion(entry)) continue
+        val sourceFile = when (entry) {
+          is Entry.Local -> entry.file
+          is Entry.Immich -> {
+            val allowNetwork = entry.serverUrl !in unavailableServers && (!automatic || ImmichClient.automaticDownloadsAllowed(context, allowMobileData(context)))
+            val source = ImmichClient.cachedOriginal(context, entry.serverUrl, entry.assetId, allowNetwork)
+            if (source == null) {
+              if (allowNetwork) unavailableServers.add(entry.serverUrl)
+              continue
+            }
+            source
+          }
+        }
+        val bitmap = decodeForScreen(context, sourceFile)
+        if (bitmap == null) {
+          prefs(context).edit().putString(INVALID_PREFIX + entry.id, sourceVersion(entry)).apply()
+          continue
+        }
+        val generated = runCatching { renderForScreen(context, bitmap, crop(context, entry)) }.getOrNull()
+        bitmap.recycle()
+        if (generated == null) continue
+        runCatching {
+          renderedFile.outputStream().use { generated.compress(Bitmap.CompressFormat.JPEG, 92, it) }
+          trimDirectory(renderedDirectory(context), RENDER_CACHE_MAX_BYTES, renderedFile)
+        }
+        rendered = generated
+      }
+      val wallpaper = rendered ?: continue
+      try {
+        val manager = WallpaperManager.getInstance(context)
+        if (android.os.Build.VERSION.SDK_INT >= 24 && lockOnly(context)) manager.setBitmap(wallpaper, null, true, WallpaperManager.FLAG_LOCK)
+        else manager.setBitmap(wallpaper)
+        val editor = prefs(context).edit()
+          .remove(INVALID_PREFIX + entry.id)
+          .putString(KEY_CURRENT_ID, entry.id)
+          .putInt(KEY_INDEX, index)
+        if (shuffleSeenIds != null) editor.putStringSet(KEY_SHUFFLE_SEEN_IDS, shuffleSeenIds + entry.id)
+        editor.apply()
+        return true
+      } catch (_: Exception) {
+        // Try the next usable entry without changing the current selection.
+      } finally {
+        wallpaper.recycle()
+      }
+    }
+    return false
   }
 }

plugins/android/src/main/res/values-de/strings.xml

@@ -1,5 +1,5 @@
 <resources>
     <string name="wallpaper_service_title">WallpaperFlow ist aktiv</string>
-    <string name="wallpaper_service_text">Das Motiv wechselt beim Aktivieren des Displays.</string>
+    <string name="wallpaper_service_text">Das nächste Motiv wird beim Ausschalten des Displays vorbereitet.</string>
-    <string name="wallpaper_channel_name">Automatischer Bildwechsel</string>
+    <string name="wallpaper_channel_name">Bildwechsel bei Display-Aktivierung</string>
 </resources>

plugins/android/src/main/res/values-es/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow está activo</string>
+    <string name="wallpaper_service_text">El fondo cambia cuando se enciende la pantalla.</string>
+    <string name="wallpaper_channel_name">Rotación al encender la pantalla</string>
+</resources>

plugins/android/src/main/res/values-fr/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow est actif</string>
+    <string name="wallpaper_service_text">Le fond d’écran change lorsque l’écran s’allume.</string>
+    <string name="wallpaper_channel_name">Rotation à l’allumage de l’écran</string>
+</resources>

plugins/android/src/main/res/values-it/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow è attivo</string>
+    <string name="wallpaper_service_text">Lo sfondo cambia quando si accende lo schermo.</string>
+    <string name="wallpaper_channel_name">Rotazione all’accensione dello schermo</string>
+</resources>

plugins/android/src/main/res/values-ja/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow は実行中です</string>
+    <string name="wallpaper_service_text">画面が点灯すると壁紙が切り替わります。</string>
+    <string name="wallpaper_channel_name">画面点灯時の壁紙切り替え</string>
+</resources>

plugins/android/src/main/res/values-ko/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow 실행 중</string>
+    <string name="wallpaper_service_text">화면이 켜질 때 배경화면이 변경됩니다.</string>
+    <string name="wallpaper_channel_name">화면 켜짐 시 배경화면 변경</string>
+</resources>

plugins/android/src/main/res/values-nl/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow is actief</string>
+    <string name="wallpaper_service_text">De achtergrond wisselt wanneer het scherm aangaat.</string>
+    <string name="wallpaper_channel_name">Wisselen bij scherminschakeling</string>
+</resources>

plugins/android/src/main/res/values-pl/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow jest aktywny</string>
+    <string name="wallpaper_service_text">Tapeta zmienia się po włączeniu ekranu.</string>
+    <string name="wallpaper_channel_name">Zmiana po włączeniu ekranu</string>
+</resources>

plugins/android/src/main/res/values-pt/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow está ativo</string>
+    <string name="wallpaper_service_text">O fundo muda quando o ecrã é ligado.</string>
+    <string name="wallpaper_channel_name">Rotação ao ligar o ecrã</string>
+</resources>

plugins/android/src/main/res/values-zh-rCN/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="wallpaper_service_title">WallpaperFlow 正在运行</string>
+    <string name="wallpaper_service_text">屏幕亮起时会更换壁纸。</string>
+    <string name="wallpaper_channel_name">亮屏时更换壁纸</string>
+</resources>

plugins/android/src/main/res/values/strings.xml

@@ -1,5 +1,5 @@
 <resources>
     <string name="wallpaper_service_title">WallpaperFlow is active</string>
-    <string name="wallpaper_service_text">The wallpaper changes whenever the screen wakes.</string>
+    <string name="wallpaper_service_text">The next wallpaper is prepared when the screen turns off.</string>
-    <string name="wallpaper_channel_name">Automatic wallpaper rotation</string>
+    <string name="wallpaper_channel_name">Screen-on wallpaper rotation</string>
 </resources>

plugins/build.rs

@@ -3,9 +3,20 @@ const COMMANDS: &[&str] = &[
     "get_gallery",
     "select_images",
     "delete_image",
+    "get_image_ids",
+    "delete_images",
     "set_image_crop",
     "set_setting",
+    "set_interval",
     "next_wallpaper",
+    "apply_wallpaper",
+    "get_immich_connection",
+    "connect_immich",
+    "disconnect_immich",
+    "get_immich_albums",
+    "get_immich_assets",
+    "import_immich_assets",
+    "get_immich_import_progress",
 ];
 
 fn main() {

plugins/permissions/autogenerated/commands/apply_wallpaper.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-apply-wallpaper"
+description = "Enables the apply_wallpaper command without any pre-configured scope."
+commands.allow = ["apply_wallpaper"]
+
+[[permission]]
+identifier = "deny-apply-wallpaper"
+description = "Denies the apply_wallpaper command without any pre-configured scope."
+commands.deny = ["apply_wallpaper"]

plugins/permissions/autogenerated/commands/connect_immich.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-connect-immich"
+description = "Enables the connect_immich command without any pre-configured scope."
+commands.allow = ["connect_immich"]
+
+[[permission]]
+identifier = "deny-connect-immich"
+description = "Denies the connect_immich command without any pre-configured scope."
+commands.deny = ["connect_immich"]

plugins/permissions/autogenerated/commands/delete_images.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-delete-images"
+description = "Enables the delete_images command without any pre-configured scope."
+commands.allow = ["delete_images"]
+
+[[permission]]
+identifier = "deny-delete-images"
+description = "Denies the delete_images command without any pre-configured scope."
+commands.deny = ["delete_images"]

plugins/permissions/autogenerated/commands/disconnect_immich.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-disconnect-immich"
+description = "Enables the disconnect_immich command without any pre-configured scope."
+commands.allow = ["disconnect_immich"]
+
+[[permission]]
+identifier = "deny-disconnect-immich"
+description = "Denies the disconnect_immich command without any pre-configured scope."
+commands.deny = ["disconnect_immich"]

plugins/permissions/autogenerated/commands/get_image_ids.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-get-image-ids"
+description = "Enables the get_image_ids command without any pre-configured scope."
+commands.allow = ["get_image_ids"]
+
+[[permission]]
+identifier = "deny-get-image-ids"
+description = "Denies the get_image_ids command without any pre-configured scope."
+commands.deny = ["get_image_ids"]

plugins/permissions/autogenerated/commands/get_immich_albums.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-get-immich-albums"
+description = "Enables the get_immich_albums command without any pre-configured scope."
+commands.allow = ["get_immich_albums"]
+
+[[permission]]
+identifier = "deny-get-immich-albums"
+description = "Denies the get_immich_albums command without any pre-configured scope."
+commands.deny = ["get_immich_albums"]

plugins/permissions/autogenerated/commands/get_immich_assets.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-get-immich-assets"
+description = "Enables the get_immich_assets command without any pre-configured scope."
+commands.allow = ["get_immich_assets"]
+
+[[permission]]
+identifier = "deny-get-immich-assets"
+description = "Denies the get_immich_assets command without any pre-configured scope."
+commands.deny = ["get_immich_assets"]

plugins/permissions/autogenerated/commands/get_immich_connection.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-get-immich-connection"
+description = "Enables the get_immich_connection command without any pre-configured scope."
+commands.allow = ["get_immich_connection"]
+
+[[permission]]
+identifier = "deny-get-immich-connection"
+description = "Denies the get_immich_connection command without any pre-configured scope."
+commands.deny = ["get_immich_connection"]

plugins/permissions/autogenerated/commands/get_immich_import_progress.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-get-immich-import-progress"
+description = "Enables the get_immich_import_progress command without any pre-configured scope."
+commands.allow = ["get_immich_import_progress"]
+
+[[permission]]
+identifier = "deny-get-immich-import-progress"
+description = "Denies the get_immich_import_progress command without any pre-configured scope."
+commands.deny = ["get_immich_import_progress"]

plugins/permissions/autogenerated/commands/import_immich_assets.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-import-immich-assets"
+description = "Enables the import_immich_assets command without any pre-configured scope."
+commands.allow = ["import_immich_assets"]
+
+[[permission]]
+identifier = "deny-import-immich-assets"
+description = "Denies the import_immich_assets command without any pre-configured scope."
+commands.deny = ["import_immich_assets"]

plugins/permissions/autogenerated/commands/set_interval.toml

@@ -0,0 +1,13 @@
+# Automatically generated - DO NOT EDIT!
+
+"$schema" = "../../schemas/schema.json"
+
+[[permission]]
+identifier = "allow-set-interval"
+description = "Enables the set_interval command without any pre-configured scope."
+commands.allow = ["set_interval"]
+
+[[permission]]
+identifier = "deny-set-interval"
+description = "Denies the set_interval command without any pre-configured scope."
+commands.deny = ["set_interval"]

plugins/permissions/autogenerated/reference.md

@@ -8,9 +8,20 @@ Allow the LockScreenWallpaper app to manage its wallpaper collection
 - `allow-get-gallery`
 - `allow-select-images`
 - `allow-delete-image`
+- `allow-get-image-ids`
+- `allow-delete-images`
 - `allow-set-image-crop`
 - `allow-set-setting`
+- `allow-set-interval`
 - `allow-next-wallpaper`
+- `allow-apply-wallpaper`
+- `allow-get-immich-connection`
+- `allow-connect-immich`
+- `allow-disconnect-immich`
+- `allow-get-immich-albums`
+- `allow-get-immich-assets`
+- `allow-import-immich-assets`
+- `allow-get-immich-import-progress`
 
 ## Permission Table
 
@@ -21,6 +32,58 @@ Allow the LockScreenWallpaper app to manage its wallpaper collection
 </tr>
 
 
+<tr>
+<td>
+
+`wallpaper:allow-apply-wallpaper`
+
+</td>
+<td>
+
+Enables the apply_wallpaper command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-apply-wallpaper`
+
+</td>
+<td>
+
+Denies the apply_wallpaper command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:allow-connect-immich`
+
+</td>
+<td>
+
+Enables the connect_immich command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-connect-immich`
+
+</td>
+<td>
+
+Denies the connect_immich command without any pre-configured scope.
+
+</td>
+</tr>
+
 <tr>
 <td>
 
@@ -50,6 +113,58 @@ Denies the delete_image command without any pre-configured scope.
 <tr>
 <td>
 
+`wallpaper:allow-delete-images`
+
+</td>
+<td>
+
+Enables the delete_images command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-delete-images`
+
+</td>
+<td>
+
+Denies the delete_images command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:allow-disconnect-immich`
+
+</td>
+<td>
+
+Enables the disconnect_immich command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-disconnect-immich`
+
+</td>
+<td>
+
+Denies the disconnect_immich command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
 `wallpaper:allow-get-gallery`
 
 </td>
@@ -76,6 +191,136 @@ Denies the get_gallery command without any pre-configured scope.
 <tr>
 <td>
 
+`wallpaper:allow-get-image-ids`
+
+</td>
+<td>
+
+Enables the get_image_ids command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-get-image-ids`
+
+</td>
+<td>
+
+Denies the get_image_ids command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:allow-get-immich-albums`
+
+</td>
+<td>
+
+Enables the get_immich_albums command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-get-immich-albums`
+
+</td>
+<td>
+
+Denies the get_immich_albums command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:allow-get-immich-assets`
+
+</td>
+<td>
+
+Enables the get_immich_assets command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-get-immich-assets`
+
+</td>
+<td>
+
+Denies the get_immich_assets command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:allow-get-immich-connection`
+
+</td>
+<td>
+
+Enables the get_immich_connection command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-get-immich-connection`
+
+</td>
+<td>
+
+Denies the get_immich_connection command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:allow-get-immich-import-progress`
+
+</td>
+<td>
+
+Enables the get_immich_import_progress command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-get-immich-import-progress`
+
+</td>
+<td>
+
+Denies the get_immich_import_progress command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
 `wallpaper:allow-get-state`
 
 </td>
@@ -102,6 +347,32 @@ Denies the get_state command without any pre-configured scope.
 <tr>
 <td>
 
+`wallpaper:allow-import-immich-assets`
+
+</td>
+<td>
+
+Enables the import_immich_assets command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-import-immich-assets`
+
+</td>
+<td>
+
+Denies the import_immich_assets command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
 `wallpaper:allow-next-wallpaper`
 
 </td>
@@ -180,6 +451,32 @@ Denies the set_image_crop command without any pre-configured scope.
 <tr>
 <td>
 
+`wallpaper:allow-set-interval`
+
+</td>
+<td>
+
+Enables the set_interval command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
+`wallpaper:deny-set-interval`
+
+</td>
+<td>
+
+Denies the set_interval command without any pre-configured scope.
+
+</td>
+</tr>
+
+<tr>
+<td>
+
 `wallpaper:allow-set-setting`
 
 </td>

plugins/permissions/default.toml

@@ -1,3 +1,3 @@
 [default]
 description = "Allow the LockScreenWallpaper app to manage its wallpaper collection"
-permissions = ["allow-get-state", "allow-get-gallery", "allow-select-images", "allow-delete-image", "allow-set-image-crop", "allow-set-setting", "allow-next-wallpaper"]
+permissions = ["allow-get-state", "allow-get-gallery", "allow-select-images", "allow-delete-image", "allow-get-image-ids", "allow-delete-images", "allow-set-image-crop", "allow-set-setting", "allow-set-interval", "allow-next-wallpaper", "allow-apply-wallpaper", "allow-get-immich-connection", "allow-connect-immich", "allow-disconnect-immich", "allow-get-immich-albums", "allow-get-immich-assets", "allow-import-immich-assets", "allow-get-immich-import-progress"]

plugins/permissions/schemas/schema.json

@@ -294,6 +294,30 @@
     "PermissionKind": {
       "type": "string",
       "oneOf": [
+        {
+          "description": "Enables the apply_wallpaper command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-apply-wallpaper",
+          "markdownDescription": "Enables the apply_wallpaper command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the apply_wallpaper command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-apply-wallpaper",
+          "markdownDescription": "Denies the apply_wallpaper command without any pre-configured scope."
+        },
+        {
+          "description": "Enables the connect_immich command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-connect-immich",
+          "markdownDescription": "Enables the connect_immich command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the connect_immich command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-connect-immich",
+          "markdownDescription": "Denies the connect_immich command without any pre-configured scope."
+        },
         {
           "description": "Enables the delete_image command without any pre-configured scope.",
           "type": "string",
@@ -306,6 +330,30 @@
           "const": "deny-delete-image",
           "markdownDescription": "Denies the delete_image command without any pre-configured scope."
         },
+        {
+          "description": "Enables the delete_images command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-delete-images",
+          "markdownDescription": "Enables the delete_images command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the delete_images command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-delete-images",
+          "markdownDescription": "Denies the delete_images command without any pre-configured scope."
+        },
+        {
+          "description": "Enables the disconnect_immich command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-disconnect-immich",
+          "markdownDescription": "Enables the disconnect_immich command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the disconnect_immich command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-disconnect-immich",
+          "markdownDescription": "Denies the disconnect_immich command without any pre-configured scope."
+        },
         {
           "description": "Enables the get_gallery command without any pre-configured scope.",
           "type": "string",
@@ -318,6 +366,66 @@
           "const": "deny-get-gallery",
           "markdownDescription": "Denies the get_gallery command without any pre-configured scope."
         },
+        {
+          "description": "Enables the get_image_ids command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-get-image-ids",
+          "markdownDescription": "Enables the get_image_ids command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the get_image_ids command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-get-image-ids",
+          "markdownDescription": "Denies the get_image_ids command without any pre-configured scope."
+        },
+        {
+          "description": "Enables the get_immich_albums command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-get-immich-albums",
+          "markdownDescription": "Enables the get_immich_albums command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the get_immich_albums command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-get-immich-albums",
+          "markdownDescription": "Denies the get_immich_albums command without any pre-configured scope."
+        },
+        {
+          "description": "Enables the get_immich_assets command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-get-immich-assets",
+          "markdownDescription": "Enables the get_immich_assets command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the get_immich_assets command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-get-immich-assets",
+          "markdownDescription": "Denies the get_immich_assets command without any pre-configured scope."
+        },
+        {
+          "description": "Enables the get_immich_connection command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-get-immich-connection",
+          "markdownDescription": "Enables the get_immich_connection command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the get_immich_connection command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-get-immich-connection",
+          "markdownDescription": "Denies the get_immich_connection command without any pre-configured scope."
+        },
+        {
+          "description": "Enables the get_immich_import_progress command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-get-immich-import-progress",
+          "markdownDescription": "Enables the get_immich_import_progress command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the get_immich_import_progress command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-get-immich-import-progress",
+          "markdownDescription": "Denies the get_immich_import_progress command without any pre-configured scope."
+        },
         {
           "description": "Enables the get_state command without any pre-configured scope.",
           "type": "string",
@@ -330,6 +438,18 @@
           "const": "deny-get-state",
           "markdownDescription": "Denies the get_state command without any pre-configured scope."
         },
+        {
+          "description": "Enables the import_immich_assets command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-import-immich-assets",
+          "markdownDescription": "Enables the import_immich_assets command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the import_immich_assets command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-import-immich-assets",
+          "markdownDescription": "Denies the import_immich_assets command without any pre-configured scope."
+        },
         {
           "description": "Enables the next_wallpaper command without any pre-configured scope.",
           "type": "string",
@@ -366,6 +486,18 @@
           "const": "deny-set-image-crop",
           "markdownDescription": "Denies the set_image_crop command without any pre-configured scope."
         },
+        {
+          "description": "Enables the set_interval command without any pre-configured scope.",
+          "type": "string",
+          "const": "allow-set-interval",
+          "markdownDescription": "Enables the set_interval command without any pre-configured scope."
+        },
+        {
+          "description": "Denies the set_interval command without any pre-configured scope.",
+          "type": "string",
+          "const": "deny-set-interval",
+          "markdownDescription": "Denies the set_interval command without any pre-configured scope."
+        },
         {
           "description": "Enables the set_setting command without any pre-configured scope.",
           "type": "string",
@@ -379,10 +511,10 @@
           "markdownDescription": "Denies the set_setting command without any pre-configured scope."
         },
         {
-          "description": "Allow the LockScreenWallpaper app to manage its wallpaper collection\n#### This default permission set includes:\n\n- `allow-get-state`\n- `allow-get-gallery`\n- `allow-select-images`\n- `allow-delete-image`\n- `allow-set-image-crop`\n- `allow-set-setting`\n- `allow-next-wallpaper`",
+          "description": "Allow the LockScreenWallpaper app to manage its wallpaper collection\n#### This default permission set includes:\n\n- `allow-get-state`\n- `allow-get-gallery`\n- `allow-select-images`\n- `allow-delete-image`\n- `allow-get-image-ids`\n- `allow-delete-images`\n- `allow-set-image-crop`\n- `allow-set-setting`\n- `allow-set-interval`\n- `allow-next-wallpaper`\n- `allow-apply-wallpaper`\n- `allow-get-immich-connection`\n- `allow-connect-immich`\n- `allow-disconnect-immich`\n- `allow-get-immich-albums`\n- `allow-get-immich-assets`\n- `allow-import-immich-assets`\n- `allow-get-immich-import-progress`",
           "type": "string",
           "const": "default",
-          "markdownDescription": "Allow the LockScreenWallpaper app to manage its wallpaper collection\n#### This default permission set includes:\n\n- `allow-get-state`\n- `allow-get-gallery`\n- `allow-select-images`\n- `allow-delete-image`\n- `allow-set-image-crop`\n- `allow-set-setting`\n- `allow-next-wallpaper`"
+          "markdownDescription": "Allow the LockScreenWallpaper app to manage its wallpaper collection\n#### This default permission set includes:\n\n- `allow-get-state`\n- `allow-get-gallery`\n- `allow-select-images`\n- `allow-delete-image`\n- `allow-get-image-ids`\n- `allow-delete-images`\n- `allow-set-image-crop`\n- `allow-set-setting`\n- `allow-set-interval`\n- `allow-next-wallpaper`\n- `allow-apply-wallpaper`\n- `allow-get-immich-connection`\n- `allow-connect-immich`\n- `allow-disconnect-immich`\n- `allow-get-immich-albums`\n- `allow-get-immich-assets`\n- `allow-import-immich-assets`\n- `allow-get-immich-import-progress`"
         }
       ]
     }

plugins/src/commands.rs

@@ -29,6 +29,14 @@ pub(crate) async fn delete_image<R: Runtime>(
     app.wallpaper().delete_image(DeleteImageRequest { id })
 }
 #[command]
+pub(crate) async fn get_image_ids<R: Runtime>(app: AppHandle<R>) -> Result<Vec<String>> {
+    app.wallpaper().get_image_ids()
+}
+#[command]
+pub(crate) async fn delete_images<R: Runtime>(app: AppHandle<R>, ids: Vec<String>) -> Result<WallpaperState> {
+    app.wallpaper().delete_images(DeleteImagesRequest { ids })
+}
+#[command]
 pub(crate) async fn set_image_crop<R: Runtime>(
     app: AppHandle<R>,
     id: String,
@@ -36,6 +44,7 @@ pub(crate) async fn set_image_crop<R: Runtime>(
     zoom: f64,
     position_x: f64,
     position_y: f64,
+    rotation: i32,
 ) -> Result<GalleryImage> {
     app.wallpaper().set_image_crop(ImageCropRequest {
         id,
@@ -43,6 +52,7 @@ pub(crate) async fn set_image_crop<R: Runtime>(
         zoom,
         position_x,
         position_y,
+        rotation,
     })
 }
 #[command]
@@ -54,6 +64,61 @@ pub(crate) async fn set_setting<R: Runtime>(
     app.wallpaper().set_setting(SettingRequest { name, value })
 }
 #[command]
+pub(crate) async fn set_interval<R: Runtime>(app: AppHandle<R>, minutes: i32) -> Result<WallpaperState> {
+    app.wallpaper().set_interval(IntervalRequest { minutes })
+}
+#[command]
 pub(crate) async fn next_wallpaper<R: Runtime>(app: AppHandle<R>) -> Result<WallpaperState> {
     app.wallpaper().next_wallpaper()
 }
+#[command]
+pub(crate) async fn apply_wallpaper<R: Runtime>(app: AppHandle<R>, id: String) -> Result<WallpaperState> {
+    app.wallpaper().apply_wallpaper(ApplyWallpaperRequest { id })
+}
+
+#[command]
+pub(crate) async fn get_immich_connection<R: Runtime>(app: AppHandle<R>) -> Result<ImmichConnection> {
+    app.wallpaper().get_immich_connection()
+}
+
+#[command]
+pub(crate) async fn connect_immich<R: Runtime>(
+    app: AppHandle<R>,
+    server_url: String,
+    api_key: String,
+) -> Result<ImmichConnection> {
+    app.wallpaper().connect_immich(ImmichConnectRequest { server_url, api_key })
+}
+
+#[command]
+pub(crate) async fn disconnect_immich<R: Runtime>(app: AppHandle<R>) -> Result<ImmichConnection> {
+    app.wallpaper().disconnect_immich()
+}
+
+#[command]
+pub(crate) async fn get_immich_albums<R: Runtime>(app: AppHandle<R>) -> Result<ImmichAlbumsResponse> {
+    app.wallpaper().get_immich_albums()
+}
+
+#[command]
+pub(crate) async fn get_immich_assets<R: Runtime>(
+    app: AppHandle<R>,
+    album_id: Option<String>,
+    page: usize,
+    size: usize,
+) -> Result<ImmichAssetsPage> {
+    app.wallpaper().get_immich_assets(ImmichAssetsRequest { album_id, page, size })
+}
+
+#[command]
+pub(crate) async fn import_immich_assets<R: Runtime>(
+    app: AppHandle<R>,
+    ids: Vec<String>,
+) -> Result<WallpaperState> {
+    app.wallpaper().import_immich_assets(ImmichImportRequest { ids })
+}
+
+#[command]
+pub(crate) async fn get_immich_import_progress<R: Runtime>(app: AppHandle<R>) -> Result<ImmichImportProgress> {
+    app.wallpaper().get_immich_import_progress()
+}

plugins/src/desktop.rs

@@ -18,9 +18,14 @@ impl<R: Runtime> Wallpaper<R> {
         WallpaperState {
             image_count: 3,
             enabled: true,
+            interval_minutes: 30,
             shuffle: true,
             lock_screen_only: true,
+            allow_mobile_data: false,
+            prefetch_immich: true,
             current_index: 0,
+            current_id: Some("demo-0".into()),
+            image_ids: vec!["demo-0".into(), "demo-1".into(), "demo-2".into()],
             image_urls: vec![
                 "/wallpapers/alpine.png".into(),
                 "/wallpapers/waterfall.png".into(),
@@ -46,6 +51,7 @@ impl<R: Runtime> Wallpaper<R> {
                 crop_zoom: 1.0,
                 crop_position_x: 0.5,
                 crop_position_y: 0.5,
+                crop_rotation: 0,
             })
             .collect();
         Ok(GalleryPage { total: 3, items })
@@ -56,6 +62,12 @@ impl<R: Runtime> Wallpaper<R> {
     pub fn delete_image(&self, _payload: DeleteImageRequest) -> crate::Result<WallpaperState> {
         Ok(Self::demo())
     }
+    pub fn get_image_ids(&self) -> crate::Result<Vec<String>> {
+        Ok((0..Self::demo().image_count).map(|index| format!("demo-{index}")).collect())
+    }
+    pub fn delete_images(&self, _payload: DeleteImagesRequest) -> crate::Result<WallpaperState> {
+        Ok(Self::demo())
+    }
     pub fn set_image_crop(&self, payload: ImageCropRequest) -> crate::Result<GalleryImage> {
         let url = Self::demo()
             .image_urls
@@ -70,6 +82,7 @@ impl<R: Runtime> Wallpaper<R> {
             crop_zoom: payload.zoom,
             crop_position_x: payload.position_x,
             crop_position_y: payload.position_y,
+            crop_rotation: payload.rotation,
         })
     }
     pub fn set_setting(&self, payload: SettingRequest) -> crate::Result<WallpaperState> {
@@ -78,13 +91,76 @@ impl<R: Runtime> Wallpaper<R> {
             "enabled" => state.enabled = payload.value,
             "shuffle" => state.shuffle = payload.value,
             "lockScreenOnly" => state.lock_screen_only = payload.value,
+            "allowMobileData" => state.allow_mobile_data = payload.value,
+            "prefetchImmich" => state.prefetch_immich = payload.value,
             _ => {}
         };
         Ok(state)
     }
+    pub fn set_interval(&self, payload: IntervalRequest) -> crate::Result<WallpaperState> {
+        let mut state = Self::demo();
+        state.interval_minutes = payload.minutes;
+        state.enabled = payload.minutes != 0;
+        Ok(state)
+    }
     pub fn next_wallpaper(&self) -> crate::Result<WallpaperState> {
         let mut state = Self::demo();
         state.current_index = 1;
+        state.current_id = Some("demo-1".into());
         Ok(state)
     }
+    pub fn apply_wallpaper(&self, payload: ApplyWallpaperRequest) -> crate::Result<WallpaperState> {
+        let mut state = Self::demo();
+        if let Some(index) = state.image_ids.iter().position(|id| id == &payload.id) {
+            state.current_index = index;
+            state.current_id = Some(payload.id);
+        }
+        Ok(state)
+    }
+    pub fn get_immich_connection(&self) -> crate::Result<ImmichConnection> {
+        Ok(ImmichConnection::default())
+    }
+    pub fn connect_immich(&self, payload: ImmichConnectRequest) -> crate::Result<ImmichConnection> {
+        Ok(ImmichConnection {
+            configured: true,
+            server_url: payload.server_url,
+            user_name: "Demo User".into(),
+        })
+    }
+    pub fn disconnect_immich(&self) -> crate::Result<ImmichConnection> {
+        Ok(ImmichConnection::default())
+    }
+    pub fn get_immich_albums(&self) -> crate::Result<ImmichAlbumsResponse> {
+        Ok(ImmichAlbumsResponse {
+            albums: vec![ImmichAlbum {
+                id: "demo-album".into(),
+                name: "Nature".into(),
+                asset_count: 3,
+                thumbnail_url: "/wallpapers/alpine.png".into(),
+            }],
+        })
+    }
+    pub fn get_immich_assets(&self, payload: ImmichAssetsRequest) -> crate::Result<ImmichAssetsPage> {
+        let urls = Self::demo().image_urls;
+        Ok(ImmichAssetsPage {
+            items: urls
+                .into_iter()
+                .enumerate()
+                .map(|(index, thumbnail_url)| ImmichAsset {
+                    id: format!("immich-demo-{index}"),
+                    file_name: format!("wallpaper-{}.jpg", index + 1),
+                    thumbnail_url,
+                    taken_at: "2026-08-21T12:00:00Z".into(),
+                })
+                .collect(),
+            page: payload.page,
+            has_more: false,
+        })
+    }
+    pub fn import_immich_assets(&self, _payload: ImmichImportRequest) -> crate::Result<WallpaperState> {
+        Ok(Self::demo())
+    }
+    pub fn get_immich_import_progress(&self) -> crate::Result<ImmichImportProgress> {
+        Ok(ImmichImportProgress::default())
+    }
 }

plugins/src/lib.rs

@@ -40,9 +40,20 @@ pub fn init<R: Runtime>() -> TauriPlugin<R> {
             commands::get_gallery,
             commands::select_images,
             commands::delete_image,
+            commands::get_image_ids,
+            commands::delete_images,
             commands::set_image_crop,
             commands::set_setting,
-            commands::next_wallpaper
+            commands::set_interval,
+            commands::next_wallpaper,
+            commands::apply_wallpaper,
+            commands::get_immich_connection,
+            commands::connect_immich,
+            commands::disconnect_immich,
+            commands::get_immich_albums,
+            commands::get_immich_assets,
+            commands::import_immich_assets,
+            commands::get_immich_import_progress
         ])
         .setup(|app, api| {
             #[cfg(mobile)]

plugins/src/mobile.rs

@@ -43,6 +43,13 @@ impl<R: Runtime> Wallpaper<R> {
             .run_mobile_plugin("deleteImage", payload)
             .map_err(Into::into)
     }
+    pub fn get_image_ids(&self) -> crate::Result<Vec<String>> {
+        let response: ImageIdsResponse = self.0.run_mobile_plugin("getImageIds", ())?;
+        Ok(response.ids)
+    }
+    pub fn delete_images(&self, payload: DeleteImagesRequest) -> crate::Result<WallpaperState> {
+        self.0.run_mobile_plugin("deleteImages", payload).map_err(Into::into)
+    }
     pub fn set_image_crop(&self, payload: ImageCropRequest) -> crate::Result<GalleryImage> {
         self.0
             .run_mobile_plugin("setImageCrop", payload)
@@ -53,9 +60,40 @@ impl<R: Runtime> Wallpaper<R> {
             .run_mobile_plugin("setSetting", payload)
             .map_err(Into::into)
     }
+    pub fn set_interval(&self, payload: IntervalRequest) -> crate::Result<WallpaperState> {
+        self.0
+            .run_mobile_plugin("setInterval", payload)
+            .map_err(Into::into)
+    }
     pub fn next_wallpaper(&self) -> crate::Result<WallpaperState> {
         self.0
             .run_mobile_plugin("nextWallpaper", ())
             .map_err(Into::into)
     }
+    pub fn apply_wallpaper(&self, payload: ApplyWallpaperRequest) -> crate::Result<WallpaperState> {
+        self.0
+            .run_mobile_plugin("applyWallpaper", payload)
+            .map_err(Into::into)
+    }
+    pub fn get_immich_connection(&self) -> crate::Result<ImmichConnection> {
+        self.0.run_mobile_plugin("getImmichConnection", ()).map_err(Into::into)
+    }
+    pub fn connect_immich(&self, payload: ImmichConnectRequest) -> crate::Result<ImmichConnection> {
+        self.0.run_mobile_plugin("connectImmich", payload).map_err(Into::into)
+    }
+    pub fn disconnect_immich(&self) -> crate::Result<ImmichConnection> {
+        self.0.run_mobile_plugin("disconnectImmich", ()).map_err(Into::into)
+    }
+    pub fn get_immich_albums(&self) -> crate::Result<ImmichAlbumsResponse> {
+        self.0.run_mobile_plugin("getImmichAlbums", ()).map_err(Into::into)
+    }
+    pub fn get_immich_assets(&self, payload: ImmichAssetsRequest) -> crate::Result<ImmichAssetsPage> {
+        self.0.run_mobile_plugin("getImmichAssets", payload).map_err(Into::into)
+    }
+    pub fn import_immich_assets(&self, payload: ImmichImportRequest) -> crate::Result<WallpaperState> {
+        self.0.run_mobile_plugin("importImmichAssets", payload).map_err(Into::into)
+    }
+    pub fn get_immich_import_progress(&self) -> crate::Result<ImmichImportProgress> {
+        self.0.run_mobile_plugin("getImmichImportProgress", ()).map_err(Into::into)
+    }
 }

plugins/src/models.rs

@@ -5,9 +5,14 @@ use serde::{Deserialize, Serialize};
 pub struct WallpaperState {
     pub image_count: usize,
     pub enabled: bool,
+    pub interval_minutes: i32,
     pub shuffle: bool,
     pub lock_screen_only: bool,
+    pub allow_mobile_data: bool,
+    pub prefetch_immich: bool,
     pub current_index: usize,
+    pub current_id: Option<String>,
+    pub image_ids: Vec<String>,
     pub image_urls: Vec<String>,
 }
 
@@ -18,6 +23,12 @@ pub struct SettingRequest {
     pub value: bool,
 }
 
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct IntervalRequest {
+    pub minutes: i32,
+}
+
 #[derive(Debug, Clone, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct GalleryRequest {
@@ -31,6 +42,24 @@ pub struct DeleteImageRequest {
     pub id: String,
 }
 
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ApplyWallpaperRequest {
+    pub id: String,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DeleteImagesRequest {
+    pub ids: Vec<String>,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImageIdsResponse {
+    pub ids: Vec<String>,
+}
+
 #[derive(Debug, Clone, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct ImageCropRequest {
@@ -39,6 +68,7 @@ pub struct ImageCropRequest {
     pub zoom: f64,
     pub position_x: f64,
     pub position_y: f64,
+    pub rotation: i32,
 }
 
 #[derive(Debug, Clone, Default, Deserialize, Serialize)]
@@ -51,6 +81,7 @@ pub struct GalleryImage {
     pub crop_zoom: f64,
     pub crop_position_x: f64,
     pub crop_position_y: f64,
+    pub crop_rotation: i32,
 }
 
 #[derive(Debug, Clone, Default, Deserialize, Serialize)]
@@ -59,3 +90,74 @@ pub struct GalleryPage {
     pub total: usize,
     pub items: Vec<GalleryImage>,
 }
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichConnectRequest {
+    pub server_url: String,
+    pub api_key: String,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichConnection {
+    pub configured: bool,
+    pub server_url: String,
+    pub user_name: String,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichAlbum {
+    pub id: String,
+    pub name: String,
+    pub asset_count: usize,
+    pub thumbnail_url: String,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichAlbumsResponse {
+    pub albums: Vec<ImmichAlbum>,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichAssetsRequest {
+    pub album_id: Option<String>,
+    pub page: usize,
+    pub size: usize,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichAsset {
+    pub id: String,
+    pub file_name: String,
+    pub thumbnail_url: String,
+    pub taken_at: String,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichAssetsPage {
+    pub items: Vec<ImmichAsset>,
+    pub page: usize,
+    pub has_more: bool,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichImportRequest {
+    pub ids: Vec<String>,
+}
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImmichImportProgress {
+    pub active: bool,
+    pub completed: usize,
+    pub total: usize,
+    pub bytes_downloaded: u64,
+    pub bytes_total: u64,
+}

public/app-icon.svg

@@ -1,8 +1,10 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
-  <rect width="512" height="512" rx="116" fill="#145d32"/>
+  <rect width="512" height="512" rx="116" fill="#edf4e9"/>
-  <path d="M142 128h228a42 42 0 0 1 42 42v210a42 42 0 0 1-42 42H142a42 42 0 0 1-42-42V170a42 42 0 0 1 42-42Z" fill="#f8faf7" opacity=".22"/>
+  <circle cx="256" cy="256" r="177" fill="#0f5b32"/>
-  <path d="M172 92h190a38 38 0 0 1 38 38v214a38 38 0 0 1-38 38H172a38 38 0 0 1-38-38V130a38 38 0 0 1 38-38Z" fill="#f8faf7"/>
+  <path d="M143 191c24-45 66-77 116-86" fill="none" stroke="#91bf93" stroke-width="19" stroke-linecap="round"/>
-  <circle cx="321" cy="170" r="31" fill="#a9cda7"/>
+  <path d="m238 93 31 10-25 20Z" fill="#91bf93"/>
-  <path d="m157 319 72-91 53 62 37-42 65 79v17a17 17 0 0 1-17 17H168a17 17 0 0 1-17-17v-15Z" fill="#145d32"/>
+  <path d="m146 211 55 128 55-103 55 103 55-128" fill="none" stroke="#f8faf4" stroke-width="34" stroke-linecap="round" stroke-linejoin="round"/>
-  <path d="M366 112a122 122 0 0 1 39 61" fill="none" stroke="#a9cda7" stroke-width="18" stroke-linecap="round"/>
+  <circle cx="366" cy="177" r="24" fill="#f2c85b"/>
+  <path d="M369 365c-25 28-59 47-97 52" fill="none" stroke="#91bf93" stroke-width="19" stroke-linecap="round"/>
+  <path d="m291 426-30-8 23-21Z" fill="#91bf93"/>
 </svg>

rust-toolchain.toml

@@ -0,0 +1,9 @@
+[toolchain]
+channel = "1.95.0"
+profile = "minimal"
+targets = [
+  "aarch64-linux-android",
+  "armv7-linux-androideabi",
+  "i686-linux-android",
+  "x86_64-linux-android",
+]

src-tauri/Cargo.toml

@@ -3,6 +3,7 @@ name = "lockscreenwallpaper"
 version = "0.1.0"
 description = "Unbegrenzter Sperrbildschirm-Wechsel für Android"
 authors = ["LockScreenWallpaper"]
+license = "GPL-3.0-only"
 edition = "2021"
 
 [lib]

src-tauri/gen/android/app/build.gradle.kts

@@ -17,7 +17,9 @@ android {
     compileSdk = 36
     namespace = "de.wechselbild.app"
     defaultConfig {
-        manifestPlaceholders["usesCleartextTraffic"] = "false"
+        // Immich is frequently hosted on a private LAN without TLS. The app only
+        // connects to the server URL explicitly entered by the user.
+        manifestPlaceholders["usesCleartextTraffic"] = "true"
         applicationId = "de.wechselbild.app"
         minSdk = 24
         targetSdk = 36
@@ -68,4 +70,4 @@ dependencies {
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.0")
 }
 
-apply(from = "tauri.build.gradle.kts")
+apply(from = "tauri.build.gradle.kts")

src-tauri/gen/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+  <background android:drawable="@mipmap/ic_launcher_background"/>
+  <monochrome android:drawable="@mipmap/ic_launcher_monochrome"/>
+</adaptive-icon>