on-pull-request.yml

name: Test successful build

on: pull_request

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout sources 🔰
      uses: actions/checkout@v4
      with:
        fetch-depth: 0

    - name: Create local branch based on 'origin/main' 🚧
      run: |
        git fetch origin main
        git checkout -b main origin/main
        git checkout -

    - name: Setup Node.js 🧮
      uses: actions/setup-node@v4
      with:
        node-version: 20

    - name: Cache Node.js modules 💾
      uses: actions/cache@v4
      with:
        path: ~/.npm
        key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
        restore-keys: |
          ${{ runner.OS }}-node-
          ${{ runner.OS }}-

    - name: Install dependencies ⏬
      run: npm ci

    - name: Run typecheck, lint and tests 🧪
      run: npm run check

    - name: Build artifacts 🏗️
      run: npm run build

    - name: Run tests related to current changes ✅
      run: |
        npx jest --config=jest.config.js --coverage --coverageReporters json-summary --changedSince=main --coverageDirectory ./coverage/changed

    - name: Check for test results ❓
      if: ${{ github.actor != 'dependabot[bot]' }}
      id: check-results
      run: |
        if [ -f ./coverage/changed/coverage-summary.json ]; then
          COVERAGE_CONTENT=$(cat ./coverage/changed/coverage-summary.json)
          if echo "$COVERAGE_CONTENT" | jq '.total.lines.pct' | grep -q 'Unknown'; then
            echo "no_tests_found=true" >> $GITHUB_ENV
          else
            echo "no_tests_found=false" >> $GITHUB_ENV
          fi
        else
          echo "no_tests_found=true" >> $GITHUB_ENV
        fi

    - name: Construct jest coverage comment input 💬
      if: ${{ github.actor != 'dependabot[bot]' }}
      id: construct-input
      env:
        MULTI_LINES_TEXT: |
          All, ./coverage/all/coverage-summary.json
          only changed, ./coverage/changed/coverage-summary.json
      run: |
        if [ "${{ env.no_tests_found }}" == "true" ]; then
          echo "MULTIPLE_FILES=All, ./coverage/all/coverage-summary.json" >> $GITHUB_ENV
        else
          echo "MULTIPLE_FILES<<EOF" >> $GITHUB_ENV
          echo "$MULTI_LINES_TEXT" >> $GITHUB_ENV
          echo "EOF" >> $GITHUB_ENV
          cat $GITHUB_ENV
        fi

    - name: Jest Coverage Comment 💬
      if: ${{ github.actor != 'dependabot[bot]' }}
      uses: MishaKav/jest-coverage-comment@main
      with:
        hide-comment: false
        create-new-comment: false
        hide-summary: false
        multiple-files: |
          ${{ env.MULTIPLE_FILES }}
      
    - name: Get Coverage Comment Id ➡️
      if: ${{ env.no_tests_found == 'true' && github.actor != 'dependabot[bot]' }}
      id: get-comment-id
      run: |
        PR_NUMBER=${{ github.event.pull_request.number }}
        COMMENTS_JSON=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
            "https://api.github.com/repos/${{ github.repository }}/issues/${PR_NUMBER}/comments")
        COVERAGE_COMMENT_ID=$(echo "${COMMENTS_JSON}" | jq -r 'map(select(.user.login == "github-actions[bot]")) | sort_by(.created_at) | .[0].id')
        echo "COVERAGE_COMMENT_ID=${COVERAGE_COMMENT_ID}" >> $GITHUB_ENV
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - name: Post To No Tests Found Comment ⚠️
      if: ${{ env.no_tests_found == 'true' && github.actor != 'dependabot[bot]' }}
      uses: peter-evans/create-or-update-comment@v4
      with:
        comment-id: ${{ env.COVERAGE_COMMENT_ID }}
        body: |
          ❌ No tests were found related to the files changed