on: [pull_request]

name: Check pull request

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

jobs:
  unit-tests:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout repository
      uses: actions/checkout@v2.4.0
      with:
        fetch-depth: 0

    - name: Check if relevant files have changed
      uses: actions/github-script@v4.0.0
      id: service-changed
      with:
        result-encoding: string
        script: |
          const script = require('.github/check-changed-files.js')
          return await script({github, context})

    - name: Set up JDK
      if: ${{ steps.service-changed.outputs.result == 'true' }}
      uses : actions/setup-java@v2.4.0
      with :
        distribution : 'zulu'
        java-version : '11'
        cache: 'gradle'

    - name: Copy CI gradle.properties
      if: ${{ steps.service-changed.outputs.result == 'true' }}
      run: mkdir -p ~/.gradle ; cp .github/ci-gradle.properties ~/.gradle/gradle.properties

    - name: Build debug APKs
      if: ${{ steps.service-changed.outputs.result == 'true' }}
      uses: gradle/gradle-build-action@v2.0.1
      with:
        arguments: assembleFreeDebug assembleNonFreeDebug

    - name: Run unit tests
      if: ${{ steps.service-changed.outputs.result == 'true' }}
      uses: gradle/gradle-build-action@v2.0.1
      with:
        arguments: apiCheck test lintFreeDebug spotlessCheck -PslimTests

    - name: (Fail-only) upload test report
      if: failure()
      uses: actions/upload-artifact@v2.2.4
      with:
          name: Test report
          path: app/build/reports