name: Test cache cleanup

on:
  workflow_call:
    inputs:
      cache-key-prefix:
        type: string
        default: '0'
      runner-os:
        type: string
        default: '["ubuntu-latest"]'
      skip-dist:
        type: boolean
        default: false

env:
  SKIP_DIST: ${{ inputs.skip-dist }}
  # Requires a fresh cache entry each run
  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: cache-cleanup-${{ inputs.cache-key-prefix }}-${{github.run_number}}

jobs:
  cache-cleanup-full-build:
    strategy:
      max-parallel: 1
      fail-fast: false
      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 with 3.1
      working-directory: sources/test/jest/resources/cache-cleanup
      run: ./gradlew --no-daemon --build-cache -Dcommons_math3_version="3.1" build

  # Second build will use the cache from the first build, but cleanup should remove unused artifacts
  cache-cleanup-assemble-build:
    needs: cache-cleanup-full-build
    strategy:
      max-parallel: 1
      fail-fast: false
      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
        cache-cleanup: 'on-success'
    - name: Build with 3.1.1
      working-directory: sources/test/jest/resources/cache-cleanup
      run: ./gradlew --no-daemon --build-cache -Dcommons_math3_version="3.1.1" build

  cache-cleanup-check-clean-cache:
    needs: cache-cleanup-assemble-build
    strategy:
      max-parallel: 1
      fail-fast: false
      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: Report Gradle User Home
      shell: bash
      run: |
        du -hc $GRADLE_USER_HOME/caches/modules-2
        du -hc $GRADLE_USER_HOME/wrapper/dists
    - name: Verify cleaned cache
      shell: bash
      run: |
        if [ ! -e $GRADLE_USER_HOME/caches/modules-2/files-2.1/org.apache.commons/commons-math3/3.1.1 ]; then
          echo "::error ::Should find commons-math3 3.1.1 in cache"
          exit 1
        fi
        if [ -e $GRADLE_USER_HOME/caches/modules-2/files-2.1/org.apache.commons/commons-math3/3.1 ]; then
          echo "::error ::Should NOT find commons-math3 3.1 in cache"
          exit 1
        fi
        if [ ! -e $GRADLE_USER_HOME/wrapper/dists/gradle-8.0.2-bin ]; then
          echo "::error ::Should find gradle-8.0.2 in wrapper/dists"
          exit 1
        fi
