ci-merge-checks.yml

on:
  pull_request:
    types: [ready_for_review]
    branches:
      - develop
      - develop-*
      - release/**
  workflow_dispatch:
    # empty as it is used only to manually trigger the workflow
  
env:
  CYPRESS_KEY: ${{ secrets.CYPRESS_KEY }}
  GH_TOKEN: ${{ github.token }}
  NODE_VERSION: '16'

concurrency: 
  group: ci-merge-checks-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

name: Merge Checks
jobs:
  no_retries: 
    name: MC - Prevent retries
    # E2Es can't be retried.  Moreover, in some retry cases, they don't run
    # and the job returns a success code.
    runs-on: ubuntu-latest
    steps:
      - name: Forcefully fail build if jobs are all retried
        uses: actions/github-script@v5
        with:
          script: |
            core.setFailed('Please push a commit to trigger the build. To push an empty commit you can use `git commit --allow-empty -m "Trigger Build"`') 
        if: ${{ github.run_attempt > 1 }}
  validate_e2e_execution:
    name: MC - Confirm e2es should run
    runs-on: ubuntu-latest
    outputs: 
      SHOULD_RUN_E2E: ${{ steps.save-e2e-output-result.outputs.SHOULD_RUN_E2E }}
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Determine whether to run e2es
        id: save-e2e-output-result
        run: |         
          source ci-scripts/validate-e2e-execution.sh
          echo "::set-output name=SHOULD_RUN_E2E::$(echo $RUN_E2E)"
  b2c_e2e_tests:
    needs: [no_retries, validate_e2e_execution]
    name: MC - E2E B2C core
    runs-on: ubuntu-latest
    strategy:
      matrix:
        containers: [1, 2, 3, 4, 5]
    if: ${{ needs.validate_e2e_execution.outputs.SHOULD_RUN_E2E == 'true' }}
    steps:
      - name: Forcefully fail build if e2e job is retried
        uses: actions/github-script@v5
        with:
          script: |
            core.setFailed('Please push a commit to trigger the build. To push an empty commit you can use `git commit --allow-empty -m "Trigger Build"`') 
        if: ${{ github.run_attempt > 1 }}
      - uses: actions/checkout@v2
      - name: Setup node
        uses: actions/setup-node@v2
        with:
          node-version: ${{ env.NODE_VERSION }}
      - name: Cache node_modules
        id: cache-node-modules
        uses: actions/cache@v2
        with:
          path: | 
            node_modules
            projects/storefrontapp-e2e-cypress/node_modules
            ~/.cache/Cypress
          key: nodemodules-${{ github.event.pull_request.base.sha }}
          restore-keys: nodemodules-${{ github.event.pull_request.base.sha }}
      - name: Run e2es
        env: 
          SPA_ENV: ci,b2c
          BUILD_NUMBER: ci-build-number-${{ github.event.pull_request.head.sha || github.run_id }}
        run: |
          ci-scripts/e2e-cypress.sh
  b2c_ssr_e2e_tests:
    needs: [no_retries, validate_e2e_execution]
    name: MC - E2E SSR (B2C)
    runs-on: ubuntu-latest
    if: ${{ needs.validate_e2e_execution.outputs.SHOULD_RUN_E2E == 'true' }}
    steps:
      - name: Forcefully fail build if e2e job is retried
        uses: actions/github-script@v5
        with:
          script: |
            core.setFailed('Please push a commit to trigger the build. To push an empty commit you can use `git commit --allow-empty -m "Trigger Build"`') 
        if: ${{ github.run_attempt > 1 }}
      - uses: actions/checkout@v2
      - name: Setup node
        uses: actions/setup-node@v2
        with:
          node-version: ${{ env.NODE_VERSION }}
      - name: Cache node_modules
        id: cache-node-modules
        uses: actions/cache@v2
        with:
          path: | 
            node_modules
            projects/storefrontapp-e2e-cypress/node_modules
            ~/.cache/Cypress
          key: nodemodules-${{ github.event.pull_request.base.sha }}
          restore-keys: nodemodules-${{ github.event.pull_request.base.sha }}
      - name: Run e2es
        env: 
          SPA_ENV: ci,b2c
          BUILD_NUMBER: ci-build-number-${{ github.event.pull_request.head.sha || github.run_id }}
        run: |
          ci-scripts/e2e-cypress.sh --ssr
  b2b_e2e_tests:
    needs: [no_retries, validate_e2e_execution]
    name: MC - E2E B2B core
    runs-on: ubuntu-latest
    strategy:
      matrix:
        containers: [1, 2, 3, 4]
    if: ${{ needs.validate_e2e_execution.outputs.SHOULD_RUN_E2E == 'true' }}
    steps:
      - name: Forcefully fail build if e2e job is retried
        uses: actions/github-script@v5
        with:
          script: |
            core.setFailed('Please push a commit to trigger the build. To push an empty commit you can use `git commit --allow-empty -m "Trigger Build"`') 
        if: ${{ github.run_attempt > 1 }}
      - uses: actions/checkout@v2
      - name: Setup node
        uses: actions/setup-node@v2
        with:
          node-version: ${{ env.NODE_VERSION }}
      - name: Cache node_modules
        id: cache-node-modules
        uses: actions/cache@v2
        with:
          path: | 
            node_modules
            projects/storefrontapp-e2e-cypress/node_modules
            ~/.cache/Cypress
          key: nodemodules-${{ github.event.pull_request.base.sha }}
          restore-keys: nodemodules-${{ github.event.pull_request.base.sha }}
      - name: Run e2es
        env:
          SPA_ENV: ci,b2b
          BUILD_NUMBER: ci-build-number-${{ github.event.pull_request.head.sha || github.run_id }}
        run: |     
          ci-scripts/e2e-cypress.sh -s b2b
  merge_checks_result:
    needs: [b2c_e2e_tests, b2c_ssr_e2e_tests, b2b_e2e_tests]
    name: MC - Result
    runs-on: ubuntu-latest
    if: ${{ always() }}
    steps:
      - name: Aggregate Required Job Results
        run: |
            gh pr ready --undo ${{github.event.number}} -R ${{ github.repository }} 
            exit 1
        if: |
          needs.b2c_e2e_tests.result == 'failure' || needs.b2c_e2e_tests.result == 'cancelled' ||
          needs.b2c_ssr_e2e_tests.result == 'failure' || needs.b2c_ssr_e2e_tests.result == 'cancelled' || 
          needs.b2b_e2e_tests.result == 'failure' || needs.b2b_e2e_tests.result == 'cancelled'