name: 'Test: E2E CI'

on:
  workflow_call:
    inputs:
      branch:
        description: 'GitHub branch/ref to test'
        required: false
        type: string
        default: ''
      playwright-only:
        description: 'Only Playwright files changed — run impacted tests only'
        required: false
        type: boolean
        default: false

env:
  DOCKER_IMAGE: ghcr.io/${{ github.repository }}:ci-${{ github.run_id }}

jobs:
  prepare:
    name: 'Prepare E2E'
    if: ${{ !github.event.pull_request.head.repo.fork }}
    runs-on: blacksmith-4vcpu-ubuntu-2204
    permissions:
      packages: write
      contents: read
    outputs:
      matrix: ${{ steps.generate-matrix.outputs.matrix }}
      skip-tests: ${{ steps.generate-matrix.outputs.skip-tests }}
    steps:
      - name: Checkout
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          ref: ${{ inputs.branch || github.ref }}
          fetch-depth: 1

      - name: Login to GHCR
        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push to GHCR
        uses: ./.github/actions/setup-nodejs
        with:
          build-command: 'pnpm build:docker'
          enable-docker-cache: true
        env:
          INCLUDE_TEST_CONTROLLER: 'true'
          IMAGE_BASE_NAME: ghcr.io/${{ github.repository }}
          IMAGE_TAG: ci-${{ github.run_id }}
          RUNNERS_IMAGE_BASE_NAME: ghcr.io/${{ github.repository_owner }}/runners
          BUILD_STATS_WEBHOOK_URL: ${{ secrets.BUILD_STATS_WEBHOOK_URL }}
          BUILD_STATS_WEBHOOK_USER: ${{ secrets.BUILD_STATS_WEBHOOK_USER }}
          BUILD_STATS_WEBHOOK_PASSWORD: ${{ secrets.BUILD_STATS_WEBHOOK_PASSWORD }}
          DOCKER_STATS_WEBHOOK_URL: ${{ secrets.DOCKER_STATS_WEBHOOK_URL }}

      - name: Get changed files for impact analysis
        if: ${{ inputs.playwright-only }}
        id: changed-files
        run: |
          git fetch --depth=1 origin ${{ github.event.pull_request.base.ref || 'master' }}
          echo "list=$(git diff --name-only FETCH_HEAD HEAD | tr '\n' ',' | sed 's/,$//')" >> "$GITHUB_OUTPUT"

      - name: Generate shard matrix
        id: generate-matrix
        env:
          CHANGED_FILES: ${{ steps.changed-files.outputs.list }}
        run: |
          ARGS=(--matrix 16 --orchestrate)
          if [[ "${{ inputs.playwright-only }}" == "true" ]]; then
            ARGS+=(--impact "--files=$CHANGED_FILES")
          fi
          MATRIX=$(node packages/testing/playwright/scripts/distribute-tests.mjs "${ARGS[@]}")
          echo "matrix=$MATRIX" >> "$GITHUB_OUTPUT"
          echo "skip-tests=$(node -e "process.stdout.write(JSON.parse(process.argv[1])[0]?.skip === true ? 'true' : 'false')" "$MATRIX")" >> "$GITHUB_OUTPUT"

  sqlite-sanity:
    needs: [prepare]
    name: 'SQLite: Sanity Check'
    if: ${{ !github.event.pull_request.head.repo.fork }}
    uses: ./.github/workflows/test-e2e-reusable.yml
    with:
      branch: ${{ inputs.branch }}
      test-mode: docker-pull
      docker-image: ghcr.io/${{ github.repository }}:ci-${{ github.run_id }}
      test-command: pnpm --filter=n8n-playwright test:container:sqlite:e2e tests/e2e/building-blocks/workflow-entry-points.spec.ts
      shards: 1
      runner: blacksmith-2vcpu-ubuntu-2204
      workers: '1'
      pre-generated-matrix: '[{"shard":1,"images":""}]'

  # Multi-main: postgres + redis + caddy + 2 mains + 1 worker
  # Only runs for internal PRs (not community/fork PRs)
  # Pulls pre-built Docker image from GHCR
  multi-main-e2e:
    needs: [prepare]
    name: 'Multi-Main: E2E'
    if: ${{ !github.event.pull_request.head.repo.fork && needs.prepare.outputs.skip-tests != 'true' }}
    uses: ./.github/workflows/test-e2e-reusable.yml
    with:
      branch: ${{ inputs.branch }}
      test-mode: docker-pull
      docker-image: ghcr.io/${{ github.repository }}:ci-${{ github.run_id }}
      test-command: pnpm --filter=n8n-playwright test:container:multi-main:e2e
      shards: 16
      runner: blacksmith-2vcpu-ubuntu-2204
      workers: '1'
      use-custom-orchestration: true
      pre-generated-matrix: ${{ needs.prepare.outputs.matrix }}
    secrets: inherit

  # Community PR tests: Local mode with SQLite (no container building, no secrets required)
  # Runs on GitHub-hosted runners without Currents reporting
  community-e2e:
    name: 'Community: E2E'
    if: ${{ github.event.pull_request.head.repo.fork }}
    uses: ./.github/workflows/test-e2e-reusable.yml
    with:
      branch: ${{ inputs.branch }}
      test-mode: local
      test-command: pnpm --filter=n8n-playwright test:local:e2e-only
      shards: 7
      runner: ubuntu-latest
      workers: '1'
      upload-failure-artifacts: true

  # Cleanup ephemeral Docker image from GHCR after tests complete
  # Local runner cleanup is handled by each test shard in test-e2e-reusable.yml
  cleanup-ghcr:
    name: 'Cleanup GHCR Image'
    needs: [prepare, multi-main-e2e, sqlite-sanity]
    if: ${{ !failure() && !cancelled() && !github.event.pull_request.head.repo.fork }}
    runs-on: blacksmith-2vcpu-ubuntu-2204
    permissions:
      packages: write
      contents: read
    steps:
      - name: Checkout
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          sparse-checkout: .github/scripts
          sparse-checkout-cone-mode: false

      - name: Delete images from GHCR
        continue-on-error: true
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GHCR_ORG: ${{ github.repository_owner }}
          GHCR_REPO: ${{ github.event.repository.name }}
        run: node .github/scripts/cleanup-ghcr-images.mjs --tag ci-${{ github.run_id }}