name: flutter

# Analyze + test the Flutter mobile client; build an APK only where
# it's actually consumed. dev pushes: analyze+test+codegen only
# (~3min) — the operator dev-tests via a local Android Studio build,
# not the CI artifact. main pushes: also build a debug APK as the
# native-build safety net (Gradle/manifest/plugin breakage that
# analyze+test can't catch) before any release tag. tags: signed
# release APK. Only runs when the diff touches flutter_client/ or a
# shared web input sync_shared.sh copies.

on:
  push:
    branches: [dev, main]
    tags: ['v*']
    paths:
      - 'flutter_client/**'
      - 'web/src/lib/styles/tokens.json'
      - 'web/src/lib/styles/error-copy.json'
      - 'web/static/placeholders/album-fallback.svg'
      - '.gitea/workflows/flutter.yml'
  pull_request:
    branches: [main]
    paths:
      - 'flutter_client/**'
      - 'web/src/lib/styles/tokens.json'
      - 'web/src/lib/styles/error-copy.json'
      - 'web/static/placeholders/album-fallback.svg'
      - '.gitea/workflows/flutter.yml'
  workflow_dispatch:

jobs:
  analyze-test-build:
    # Toolchain selected via container.image per ci-runners.md
    # (label = scheduling handle, image = environment). The ci-flutter
    # image ships Flutter SDK + Android cmdline-tools/platform/build-tools
    # + Java 25. See ci-requirements.md.
    runs-on: flutter-ci
    container:
      image: git.fabledsword.com/bvandeusen/ci-flutter:3.44

    defaults:
      run:
        working-directory: flutter_client

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Sync shared assets from web/
        run: ./tool/sync_shared.sh

      - name: Verify generated tokens.dart matches JSON
        shell: bash
        run: |
          dart run tool/gen_tokens.dart
          if ! git diff --exit-code lib/theme/tokens.dart; then
            echo "::error::lib/theme/tokens.dart is out of sync with shared/fabledsword.tokens.json"
            echo "Run: cd flutter_client && dart run tool/gen_tokens.dart"
            exit 1
          fi

      - name: Pub get
        run: flutter pub get

      - name: Codegen (drift, etc.)
        # build_runner generates *.g.dart files (drift schemas, etc.)
        # which are gitignored. Must run before analyze + test so the
        # generated symbols exist.
        run: dart run build_runner build --delete-conflicting-outputs

      - name: Analyze
        run: flutter analyze --fatal-infos

      - name: Test
        run: flutter test --reporter compact

      - name: Build debug APK
        # main-only: native-build safety net before release tags.
        # dev skips this (~7min) — operator dev-tests locally.
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        run: flutter build apk --debug

      - name: Decode signing keystore
        if: startsWith(github.ref, 'refs/tags/v')
        # Reconstructs the release keystore from a base64-encoded
        # CI secret so every tagged build is signed with the same
        # key. Without this, each CI runner would generate its own
        # debug keystore and Android would refuse to upgrade an
        # existing install (signature mismatch).
        shell: bash
        env:
          ANDROID_KEYSTORE_B64: ${{ secrets.ANDROID_KEYSTORE_B64 }}
        run: |
          if [ -z "${ANDROID_KEYSTORE_B64}" ]; then
            echo "::error::ANDROID_KEYSTORE_B64 secret is missing — release builds need a consistent signing key"
            exit 1
          fi
          KEYSTORE_PATH="${RUNNER_TEMP}/minstrel-release.keystore"
          echo "${ANDROID_KEYSTORE_B64}" | base64 -d > "${KEYSTORE_PATH}"
          echo "ANDROID_KEYSTORE_PATH=${KEYSTORE_PATH}" >> "${GITHUB_ENV}"

      - name: Build release APK
        if: startsWith(github.ref, 'refs/tags/v')
        # Inject the tag (sans leading 'v') as the build's --build-name
        # so PackageInfo.version matches what /api/client/version
        # reports — otherwise the in-app update banner would always
        # think the user is behind because pubspec.yaml's static
        # version drifts from the actual release tag.
        #
        # ANDROID_KEYSTORE_PATH is set by the previous step;
        # build.gradle.kts picks it up and signs the release APK with
        # the operator's persistent keystore.
        shell: bash
        env:
          # PKCS12 keystores collapse store + key password into a single
          # value, so both env vars map to one secret. build.gradle still
          # reads them separately to stay format-agnostic.
          ANDROID_STORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
          ANDROID_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
          ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
        run: |
          TAG="${GITHUB_REF#refs/tags/v}"
          flutter build apk --release --build-name="${TAG}"

      - name: Upload debug APK artifact
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        uses: forgejo/upload-artifact@v3
        with:
          name: minstrel-debug-${{ github.sha }}
          path: flutter_client/build/app/outputs/flutter-apk/app-debug.apk

      - name: Attach release APK to release
        if: startsWith(github.ref, 'refs/tags/v')
        shell: bash
        env:
          CI_TOKEN: ${{ secrets.CI_TOKEN }}
        run: |
          TAG="${GITHUB_REF#refs/tags/}"
          REPO="${GITHUB_REPOSITORY}"
          # Look up the release ID for this tag. The release object must
          # exist already — operator creates it (or release.yml will, in
          # a future enhancement) before pushing the tag.
          RELEASE_ID=$(curl -fsSL \
            -H "Authorization: token ${CI_TOKEN}" \
            "https://git.fabledsword.com/api/v1/repos/${REPO}/releases/tags/${TAG}" \
            | grep -oP '"id":\s*\K[0-9]+' | head -1)
          if [ -z "${RELEASE_ID}" ]; then
            echo "::error::release for tag ${TAG} not found"
            exit 1
          fi
          curl -fsSL \
            -H "Authorization: token ${CI_TOKEN}" \
            -F "attachment=@build/app/outputs/flutter-apk/app-release.apk" \
            "https://git.fabledsword.com/api/v1/repos/${REPO}/releases/${RELEASE_ID}/assets?name=minstrel-${TAG}.apk"