name: Test restore Gradle Home

on:
  workflow_call:
    inputs:
      cache-key-prefix:
        type: string
      runner-os:
        type: string
        default: '["ubuntu-latest", "windows-latest", "macos-latest"]'
      download-dist:
        type: boolean
        default: false

env:
  DOWNLOAD_DIST: ${{ inputs.download-dist }}
  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: restore-gradle-home-${{ inputs.cache-key-prefix }}
  GRADLE_BUILD_ACTION_CACHE_KEY_JOB: restore-gradle-home

jobs:
  seed-build:
    strategy:
      matrix:
        os: ${{fromJSON(inputs.runner-os)}}
    runs-on: ${{ matrix.os }}
    steps:
    - name: Checkout sources
      uses: actions/checkout@v4
    - name: Initialize integ-test
      uses: ./.github/actions/init-integ-test

    - name: Setup Gradle
      uses: ./setup-gradle
      with:
        cache-read-only: false # For testing, allow writing cache entries on non-default branches
    - name: Build using Gradle wrapper
      working-directory: .github/workflow-samples/groovy-dsl
      run: ./gradlew test

  # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
  dependencies-cache:
    needs: seed-build
    strategy:
      matrix:
        os: ${{fromJSON(inputs.runner-os)}}
    runs-on: ${{ matrix.os }}
    steps:
    - name: Checkout sources
      uses: actions/checkout@v4
    - name: Initialize integ-test
      uses: ./.github/actions/init-integ-test

    - name: Setup Gradle
      uses: ./setup-gradle
      with:
        cache-read-only: true
    - name: Execute Gradle build with --offline
      working-directory: .github/workflow-samples/groovy-dsl
      run: ./gradlew test --offline

  # Test that the gradle-user-home cache will cache and restore local build-cache
  build-cache:
    needs: seed-build
    strategy:
      matrix:
        os: ${{fromJSON(inputs.runner-os)}}
    runs-on: ${{ matrix.os }}
    steps:
    - name: Checkout sources
      uses: actions/checkout@v4
    - name: Initialize integ-test
      uses: ./.github/actions/init-integ-test

    - name: Setup Gradle
      uses: ./setup-gradle
      with:
        cache-read-only: true
    - name: Execute Gradle build and verify tasks from cache
      working-directory: .github/workflow-samples/groovy-dsl
      run: ./gradlew test -DverifyCachedBuild=true

  # Check that the build can run when Gradle User Home is not fully restored
  no-extracted-cache-entries-restored:
    needs: seed-build
    strategy:
      matrix:
        os: ${{fromJSON(inputs.runner-os)}}
    runs-on: ${{ matrix.os }}
    steps:
    - name: Checkout sources
      uses: actions/checkout@v4
    - name: Initialize integ-test
      uses: ./.github/actions/init-integ-test

    - name: Setup Gradle with no extracted cache entries restored
      uses: ./setup-gradle
      env: 
        GRADLE_BUILD_ACTION_SKIP_RESTORE: "generated-gradle-jars|wrapper-zips|java-toolchains|instrumented-jars|dependencies|kotlin-dsl"
      with:
        cache-read-only: true
    - name: Check executee Gradle build
      working-directory: .github/workflow-samples/groovy-dsl
      run: ./gradlew test

  # Test that a pre-existing gradle-user-home can be overwritten by the restored cache
  pre-existing-gradle-home:
    needs: seed-build
    strategy:
      matrix:
        os: ${{fromJSON(inputs.runner-os)}}
    runs-on: ${{ matrix.os }}
    steps:
    - name: Checkout sources
      uses: actions/checkout@v4
    - name: Initialize integ-test
      uses: ./.github/actions/init-integ-test

    - name: Pre-create Gradle User Home
      shell: bash
      run: |
        mkdir -p ~/.gradle/caches
        touch ~/.gradle/gradle.properties
        touch ~/.gradle/caches/dummy.txt
    - name: Setup Gradle
      uses: ./setup-gradle
      with:
        cache-read-only: true
        cache-overwrite-existing: true
    - name: Check that pre-existing content still exists
      shell: bash
      run: |
        if [ ! -e ~/.gradle/caches/dummy.txt ]; then
          echo "::error ::Should find dummy.txt after cache restore"
          exit 1
        fi
        if [ ! -e ~/.gradle/gradle.properties ]; then
          echo "::error ::Should find gradle.properties after cache restore"
          exit 1
        fi
    - name: Execute Gradle build with --offline
      working-directory: .github/workflow-samples/groovy-dsl
      run: ./gradlew test --offline
