name: APK Build

on:
  pull_request: { }
  push:
    branches: [ main, develop ]

# Enrich gradle.properties for CI/CD
env:
  CI_GRADLE_ARG_PROPERTIES: >
    -Porg.gradle.jvmargs=-Xmx2g
    -Porg.gradle.parallel=false

jobs:
  debug:
    name: Build debug APKs (${{ matrix.target }})
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/main'
    strategy:
      fail-fast: false
      matrix:
        target: [ Gplay, Fdroid ]
    # Allow all jobs on develop. Just one per PR.
    concurrency:
      group: ${{ github.ref == 'refs/heads/develop' && format('integration-tests-develop-{0}-{1}', matrix.target, github.sha) || format('build-debug-{0}-{1}', matrix.target, github.ref)  }}
      cancel-in-progress: true
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-
      - name: Assemble ${{ matrix.target }} debug apk
        run: ./gradlew assemble${{ matrix.target }}Debug $CI_GRADLE_ARG_PROPERTIES --stacktrace
      - name: Upload ${{ matrix.target }} debug APKs
        uses: actions/upload-artifact@v3
        with:
          name: vector-${{ matrix.target }}-debug
          path: |
            vector/build/outputs/apk/*/debug/*.apk

  release:
    name: Build unsigned GPlay APKs
    runs-on: ubuntu-latest
    concurrency:
      group: ${{ github.ref == 'refs/head/main' && format('build-release-apk-main-{0}', github.sha) || github.ref == 'refs/heads/develop' && format('build-release-apk-develop-{0}', github.sha) || format('build-debug-{0}', github.ref)  }}
      cancel-in-progress: ${{ github.ref != 'refs/head/main' }}
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-
      - name: Assemble GPlay unsigned apk
        run: ./gradlew clean assembleGplayRelease $CI_GRADLE_ARG_PROPERTIES --stacktrace
      - name: Upload Gplay unsigned APKs
        uses: actions/upload-artifact@v3
        with:
          name: vector-gplay-release-unsigned
          path: |
            vector/build/outputs/apk/*/release/*.apk

  exodus:
    runs-on: ubuntu-latest
    needs: release
    steps:
      - name: Obtain apk from artifact
        id: download
        uses: actions/download-artifact@v3
        with:
          name: vector-gplay-release-unsigned
      - name: Show apks in artifact
        run: ls -R ${{steps.download.outputs.download-path}}
      - name: Execute exodus-standalone
        uses: docker://exodusprivacy/exodus-standalone:latest
        with:
          args: /github/workspace/gplay/release/vector-gplay-universal-release-unsigned.apk -j -o /github/workspace/exodus.json
      - name: Upload exodus json report
        uses: actions/upload-artifact@v3
        with:
          name: exodus.json
          path: |
            exodus.json
      - name: Check for trackers
        run: "jq -e '.trackers == []' exodus.json > /dev/null || { echo '::error static analysis identified user tracking library' ; exit 1; }"