name: Release APK

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

jobs:
  build:
    runs-on: linux-x86_64

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: "17"

      - uses: subosito/flutter-action@v2
        with:
          flutter-version: "stable"
          cache: true

      - name: Extract version code from pubspec
        run: |
          VERSION=$(grep '^version:' pubspec.yaml | sed 's/version: //')
          VERSION_CODE=$(echo "$VERSION" | grep -oP '(?<=\+)\d+')
          VERSION_NAME=$(echo "$VERSION" | grep -oP '^[^+]+')
          echo "VERSION_CODE=$VERSION_CODE" >> $GITHUB_ENV
          echo "VERSION_NAME=$VERSION_NAME" >> $GITHUB_ENV

      - name: Decode keystore
        run: |
          echo "${{ secrets.KEYSTORE_BASE64 }}" | base64 -d > android/app/kirakira-release.jks
          echo "KEYSTORE_PATH=$GITHUB_WORKSPACE/android/app/kirakira-release.jks" >> $GITHUB_ENV

      - name: Build release APK (prod flavor)
        env:
          STORE_PASSWORD: ${{ secrets.STORE_PASSWORD }}
          KEY_ALIAS:      ${{ secrets.KEY_ALIAS }}
          KEY_PASSWORD:   ${{ secrets.KEY_PASSWORD }}
        run: flutter build apk --release --flavor prod

      - name: Rename APK
        run: |
          cp build/app/outputs/flutter-apk/app-prod-release.apk \
             "kirakira-${{ env.VERSION_NAME }}.apk"

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          files: kirakira-*.apk
          body_path: fastlane/metadata/android/en-US/changelogs/${{ env.VERSION_CODE }}.txt
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}