SpaghettiKart/.github/workflows/android-compile.yml

name: Android Build

on:
  workflow_dispatch:
    inputs:
      build_type:
        description: 'Build type'
        required: true
        default: 'debug'
        type: choice
        options:
        - debug
        - release
  push:
    branches: [ main ]
    paths: 
      - 'android/**'
      - 'src/**'
      - 'CMakeLists.txt'
  pull_request:
    branches: [ main ]
    paths:
      - 'android/**'
      - 'src/**'
      - 'CMakeLists.txt'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  generate-port-o2r:
    runs-on: ubuntu-22.04
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true
    - name: Install dependencies
      run: sudo apt-get install gcc g++ git cmake ninja-build lsb-release
    - name: ccache
      uses: hendrikmuhs/ccache-action@v1.2.18
      with:
        key: ${{ runner.os }}-o2r-ccache-${{ github.ref }}-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-o2r-ccache-${{ github.ref }}
          ${{ runner.os }}-o2r-ccache-
    - name: Cache build folders
      uses: actions/cache@v4
      with:
        key: ${{ runner.os }}-o2r-build-${{ github.ref }}-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-o2r-build-${{ github.ref }}
          ${{ runner.os }}-o2r-build-
        path: |
          torch/cmake-build-release
    - name: Generate spaghetti.o2r
      run: |
        export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
        make -C torch type=release -j3
        torch/cmake-build-release/torch pack assets spaghetti.o2r o2r
    - uses: actions/upload-artifact@v4
      with:
        name: spaghetti.o2r
        path: spaghetti.o2r
        retention-days: 1

  build-android:
    needs: generate-port-o2r
    runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true
    - name: Install dependencies
      run: sudo apt-get install -y ninja-build
    - name: Download spaghetti.o2r
      uses: actions/download-artifact@v4
      with:
        name: spaghetti.o2r
        path: android/app/src/main/assets 
    - name: Configure Gradle permissions
      run: chmod +x android/gradlew
    
    # Set up signing for release builds
    - name: Setup signing keystore (Release only)
      if: github.event.inputs.build_type == 'release' || github.ref == 'refs/heads/main'
      run: |
        echo "$KEYSTORE_BASE64" | base64 -d > android/app/release.keystore
        if [ ! -f android/app/release.keystore ]; then
          echo "Failed to create keystore file"
          exit 1
        fi
        echo "Keystore file created successfully:"
        ls -la android/app/release.keystore
        file android/app/release.keystore
      env:
        KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
    
    # Build Debug APK
    - name: Build Debug APK
      if: github.event.inputs.build_type == 'debug' || github.event.inputs.build_type == ''
      run: |
        cd android/
        ./gradlew assembleDebug -P elfBuildType=RelWithDebInfo
        mv app/build/outputs/apk/debug/app-debug.apk ../spaghettikart-debug.apk
    
    # Build Release APK (signed)
    - name: Build Release APK
      if: github.event.inputs.build_type == 'release' || github.ref == 'refs/heads/main'
      run: |
        cd android/
        ./gradlew assembleRelease -P elfBuildType=Release
        mv app/build/outputs/apk/release/app-release.apk ../spaghettikart-release.apk
      env:
        KEYSTORE_FILE: release.keystore
        KEYSTORE_PASSWORD: ${{ secrets.KEYSTORE_PASSWORD }}
        KEY_ALIAS: ${{ secrets.KEY_ALIAS }}
        KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
    
    # Upload Debug APK
    - name: Upload Debug APK
      if: github.event.inputs.build_type == 'debug' || github.event.inputs.build_type == ''
      uses: actions/upload-artifact@v4
      with:
        name: spaghetti-kart-debug-apk
        path: spaghettikart-debug.apk
    
    # Upload Release APK
    - name: Upload Release APK
      if: github.event.inputs.build_type == 'release' || github.ref == 'refs/heads/main'
      uses: actions/upload-artifact@v4
      with:
        name: spaghetti-kart-release-apk
        path: spaghettikart-release.apk
    
    # Clean up keystore
    - name: Clean up keystore
      if: always()
      run: rm -f android/app/release.keystore