name: Build MeloNX Android APK

on:
  push:

jobs:
  build:
    name: Build APK
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Set Up JDK
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '17'

      - name: Setup Android SDK Tools
        uses: android-actions/setup-android@v3.2.2      

      - name: Install Ninja and CMake
        run: |
          sudo apt-get update
          sudo apt-get install -y ninja-build cmake

      - name: Cache Gradle dependencies
        uses: actions/cache@v4
        with:
          path: ~/.gradle/caches
          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: gradle-${{ runner.os }}-

      - name: Cache CMake build
        uses: actions/cache@v4
        with:
          path: src/RyujinxAndroid/app/.cxx
          key: cmake-${{ runner.os }}-${{ hashFiles('src/RyujinxAndroid/CMakeLists.txt', 'src/RyujinxAndroid/**/*.cpp', 'src/RyujinxAndroid/**/*.h') }}
          restore-keys: cmake-${{ runner.os }}-

      - name: Grant Execute Permission for Gradlew
        run: chmod +x src/RyujinxAndroid/gradlew

      - name: Build with Gradle
        run: src/RyujinxAndroid/gradlew assembleDebug
        working-directory: src/RyujinxAndroid

      - name: Generate Debug Keystore
        run: |
          keytool -genkeypair -v -keystore debug.keystore -alias androiddebugkey \
            -keyalg RSA -keysize 2048 -validity 10000 \
            -storepass android -keypass android \
            -dname "CN=Android Debug,O=Android,C=US"

      - name: Sign APK
        run: |
          jarsigner -verbose -sigalg SHA256withRSA -digestalg SHA-256 \
            -keystore debug.keystore -storepass android \
            src/RyujinxAndroid/app/build/outputs/apk/debug/app-debug.apk androiddebugkey

      - name: Verify APK Signature
        run: |
          apksigner verify --verbose src/RyujinxAndroid/app/build/outputs/apk/debug/app-debug.apk

      - name: Upload Signed APK
        uses: actions/upload-artifact@v4
        with:
          name: RyujinxAndroid-APK
          path: src/RyujinxAndroid/app/build/outputs/apk/debug/app-debug.apk