name: Android Build

on:
  push:
    branches: [main]
    paths:
      - 'android/**'
      - '.github/workflows/android-build.yml'
  pull_request:
    branches: [main]
    paths:
      - 'android/**'
      - '.github/workflows/android-build.yml'

jobs:
  build-www:
    name: Build WebView UI
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: android/www
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'npm'
          cache-dependency-path: android/www/package-lock.json

      - run: npm ci
      - run: npm run build
      - run: cd dist && zip -r ../www.zip .

      - uses: actions/upload-artifact@v4
        with:
          name: www-zip
          path: android/www/www.zip

  build-apk:
    name: Build APK
    runs-on: ubuntu-latest
    needs: build-www
    defaults:
      run:
        working-directory: android
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: '21'

      - uses: android-actions/setup-android@v4

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

      - name: Build debug APK
        run: ./gradlew assembleDebug

      - uses: actions/upload-artifact@v4
        with:
          name: app-debug
          path: android/app/build/outputs/apk/debug/app-debug.apk

  release:
    name: Create Release
    runs-on: ubuntu-latest
    needs: [build-www, build-apk]
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    permissions:
      contents: write
    steps:
      - uses: actions/download-artifact@v4
        with:
          name: app-debug

      - uses: actions/download-artifact@v4
        with:
          name: www-zip

      # Release is created manually — artifacts are available for download
      # To create a tagged release, push a tag: git tag v1.0.0 && git push --tags