name: Levitate / Detect breaking changes

on: pull_request

jobs:
  buildPR:
    name: Build PR
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: './pr'

    steps:
    - uses: actions/checkout@v2
      with: 
        path: './pr'

    - name: Get yarn cache directory path
      id: yarn-cache-dir-path
      run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
    
    - name: Restore yarn cache
      uses: actions/cache@v2
      id: yarn-cache
      with:
        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
        key: yarn-cache-folder-${{ hashFiles('**/yarn.lock', '.yarnrc.yml') }}
        restore-keys: |
          yarn-cache-folder-
      
    - name: Install dependencies
      run: yarn install --immutable

    - name: Build packages
      run: yarn packages:build

    - name: Zip built packages
      run: zip -r ./pr_built_packages.zip ./packages/**/dist

    - name: Upload build output as artifact
      uses: actions/upload-artifact@v2
      with:
        name: buildPr
        path: './pr/pr_built_packages.zip'

  buildBase:
    name: Build Base
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: './base'

    steps:
    - uses: actions/checkout@v2
      with: 
        path: './base'
        ref: ${{ github.event.pull_request.base.ref }}

    - name: Get yarn cache directory path
      id: yarn-cache-dir-path
      run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
    
    - name: Restore yarn cache
      uses: actions/cache@v2
      id: yarn-cache
      with:
        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
        key: yarn-cache-folder-${{ hashFiles('**/yarn.lock', '.yarnrc.yml') }}
        restore-keys: |
          yarn-cache-folder-
      
    - name: Install dependencies
      run: yarn install --immutable

    - name: Build packages
      run: yarn packages:build

    - name: Zip built packages
      run: zip -r ./base_built_packages.zip ./packages/**/dist

    - name: Upload build output as artifact
      uses: actions/upload-artifact@v2
      with:
        name: buildBase
        path: './base/base_built_packages.zip'

  Detect:
    name: Detect breaking changes
    runs-on: ubuntu-latest
    needs: ['buildPR', 'buildBase']
    env:
      GITHUB_STEP_NUMBER: 7

    steps:
      - uses: actions/checkout@v2

      - name: Get built packages from pr
        uses: actions/download-artifact@v2
        with:
          name: buildPr

      - name: Get built packages from base
        uses: actions/download-artifact@v2
        with:
          name: buildBase
      
      - name: Unzip artifact from pr
        run: unzip pr_built_packages.zip -d ./pr && rm pr_built_packages.zip

      - name: Unzip artifact from base
        run: unzip base_built_packages.zip -d ./base && rm base_built_packages.zip

      - name: Get link for the Github Action job
        id: job
        uses: actions/github-script@v5
        with:
          script: |
              const script = require('./.github/workflows/scripts/pr-get-job-link.js')
              await script({github, context, core})

      - name: Detect breaking changes
        id: breaking-changes
        run: ./scripts/check-breaking-changes.sh 
        env:
          FORCE_COLOR: 3
          GITHUB_JOB_LINK: ${{ steps.job.outputs.link }}

      - name: Persisting the check output
        run: |
            mkdir -p ./levitate
            echo "{ \"exit_code\": ${{ steps.breaking-changes.outputs.is_breaking }}, \"message\": \"${{ steps.breaking-changes.outputs.message }}\", \"job_link\": \"${{ steps.job.outputs.link }}#step:${GITHUB_STEP_NUMBER}:1\" }" > ./levitate/result.json

      - name: Upload check output as artifact
        uses: actions/upload-artifact@v2
        with:
          name: levitate
          path: levitate/
        
      - name: Exit
        run: exit ${{ steps.breaking-changes.outputs.is_breaking }}
        shell: bash