name: Publish F-Droid Repo

on:
  push:
    tags: ["v*"]
  workflow_dispatch:

jobs:
  publish-fdroid:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    env:
      EXPO_PUBLIC_SENTRY_DSN: ${{ secrets.EXPO_PUBLIC_SENTRY_DSN }}
      EXPO_PUBLIC_POSTHOG_KEY: ${{ secrets.EXPO_PUBLIC_POSTHOG_KEY }}
      SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
      SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
      SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm

      - uses: actions/setup-java@v5
        with:
          distribution: temurin
          java-version: 17

      - name: Setup Android SDK
        uses: android-actions/setup-android@v4

      - name: Cache Gradle
        uses: actions/cache@v5
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
            android/.gradle
          key: ${{ runner.os }}-gradle-${{ hashFiles('android/**/*.gradle*', 'android/gradle/wrapper/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-

      - name: Install dependencies
        run: npm install --legacy-peer-deps

      - name: Check release version metadata
        run: npm run check:versions

      - name: Set Sentry release identifiers
        # sentry.gradle (applied from android/app/build.gradle) defaults the
        # upload's --release/--dist to `${applicationId}@${versionName}+${versionCode}`,
        # which does NOT match the release/dist Sentry.init() reports at runtime
        # (`opencode-mobile@${app.json version}`, see src/lib/sentry.ts). That
        # mismatch made every uploaded source map land under a release Sentry
        # never looks up, so symbolication silently failed. Pin the Gradle-side
        # values to exactly what the app reports.
        run: |
          VERSION=$(node -p "require('./app.json').expo.version")
          echo "SENTRY_RELEASE=opencode-mobile@${VERSION}" >> "$GITHUB_ENV"
          echo "SENTRY_DIST=${VERSION}" >> "$GITHUB_ENV"
          echo "Sentry release=opencode-mobile@${VERSION} dist=${VERSION}"

      - name: Expo prebuild
        run: npx expo prebuild --platform android --no-install

      - name: Setup signing
        run: |
          if [[ -n "${{ secrets.KEYSTORE_BASE64 }}" ]]; then
            echo "${{ secrets.KEYSTORE_BASE64 }}" | base64 -d > android/app/release.keystore
            echo "RELEASE_STORE_FILE=release.keystore" >> "$GITHUB_ENV"
            echo "RELEASE_STORE_PASSWORD=${{ secrets.KEYSTORE_PASSWORD }}" >> "$GITHUB_ENV"
            echo "RELEASE_KEY_ALIAS=${{ secrets.KEY_ALIAS }}" >> "$GITHUB_ENV"
            echo "RELEASE_KEY_PASSWORD=${{ secrets.KEY_PASSWORD }}" >> "$GITHUB_ENV"
            echo "Signing: production keystore"
          else
            keytool -genkey -v -keystore android/app/debug.keystore -storepass android \
              -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000 \
              -dname "CN=Android Debug,O=Android,C=US"
            echo "Signing: debug keystore"
          fi

      - name: Build APK
        working-directory: android
        run: ./gradlew assembleRelease

      - name: Re-sign APK v1+v2 only (drop v3/v4 for fdroidserver compatibility)
        if: ${{ env.RELEASE_STORE_FILE != '' }}
        run: |
          # androguard (used by fdroidserver) crashes parsing a v2+v3 signature
          # block pair: "'NoOverwriteDict' object has no attribute 'append'".
          # expo prebuild regenerates build.gradle, so we can't rely on the
          # gradle signing flags surviving — force v1+v2-only here deterministically.
          APK=android/app/build/outputs/apk/release/app-release.apk
          APKSIGNER=$(ls "$ANDROID_HOME"/build-tools/*/apksigner | sort -V | tail -1)
          echo "Using $APKSIGNER"
          "$APKSIGNER" sign \
            --ks android/app/release.keystore \
            --ks-pass "pass:${RELEASE_STORE_PASSWORD}" \
            --ks-key-alias "${RELEASE_KEY_ALIAS}" \
            --key-pass "pass:${RELEASE_KEY_PASSWORD}" \
            --v1-signing-enabled true \
            --v2-signing-enabled true \
            --v3-signing-enabled false \
            --v4-signing-enabled false \
            "$APK"
          echo "=== signature schemes after re-sign ==="
          "$APKSIGNER" verify -v "$APK" | grep -i "Verified using" || true

      - name: Install fdroidserver
        # androguard version matters. 4.1.4 crashes extracting the signer cert
        # ("'NoOverwriteDict' object has no attribute 'append'" in
        # parse_v2_v3_signature) — this is what broke the publish from v0.4.2 on.
        # 4.1.3 is the version that successfully published v0.3.2–v0.4.1 and parses
        # our (v1+v2-only, re-signed above) APK cleanly — verified locally against
        # the release APK via fdroidserver.common.get_first_signer_certificate.
        run: pip install "fdroidserver==2.4.4" "androguard==4.1.3"

      - name: Setup F-Droid repo
        id: fdroid-setup
        run: |
          FDROID_DIR="$HOME/fdroid-repo"
          mkdir -p "$FDROID_DIR/repo"
          mkdir -p "$FDROID_DIR/metadata"

          echo "${{ secrets.FDROID_REPO_KEYSTORE_B64 }}" | base64 -d > "$FDROID_DIR/repo-keystore.jks"

          cat > "$FDROID_DIR/config.yml" << CONFIGEOF
          repo_url: https://dzianisv.github.io/opencode-mobile/fdroid/repo
          repo_name: OpenCode Mobile
          repo_description: OpenCode Mobile - AI coding assistant companion app
          keystore: $FDROID_DIR/repo-keystore.jks
          repo_keyalias: ${{ secrets.FDROID_REPO_KEY_ALIAS }}
          keystorepass: ${{ secrets.FDROID_REPO_KEYSTORE_PASS }}
          keypass: ${{ secrets.FDROID_REPO_KEY_PASS }}
          CONFIGEOF

          cp android/app/build/outputs/apk/release/app-release.apk "$FDROID_DIR/repo/"

          echo "fdroid-dir=$FDROID_DIR" >> "$GITHUB_OUTPUT"

      - name: Generate F-Droid repo index
        run: |
          cd "${{ steps.fdroid-setup.outputs.fdroid-dir }}"
          fdroid update --create-metadata

      - name: Verify F-Droid repo index was generated
        run: |
          IDX="${{ steps.fdroid-setup.outputs.fdroid-dir }}/repo/index.xml"
          if [[ ! -f "$IDX" ]]; then
            echo "ERROR: F-Droid repo index not generated at $IDX"
            ls -la "${{ steps.fdroid-setup.outputs.fdroid-dir }}/repo/" || true
            exit 1
          fi
          echo "F-Droid repo index verified: $(wc -c < "$IDX") bytes"

      - name: Deploy to GitHub Pages
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ${{ steps.fdroid-setup.outputs.fdroid-dir }}/repo
          destination_dir: fdroid/repo
          keep_files: true