name: Build, unit test and lint branch

on:
  pull_request:
    branches:
      - '**'
      - '!release/*'

concurrency:
  group: ci-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

env:
  COVERAGE_ENABLED: 'true' # Set globally for all jobs - ensures Turbo cache consistency

jobs:
  install-and-build:
    name: Install & Build
    runs-on: blacksmith-2vcpu-ubuntu-2204
    env:
      NODE_OPTIONS: '--max-old-space-size=6144'
    outputs:
      frontend_changed: ${{ steps.paths-filter.outputs.frontend == 'true' }}
      non_python_changed: ${{ steps.paths-filter.outputs.non-python == 'true' }}
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          ref: refs/pull/${{ github.event.pull_request.number }}/merge

      - name: Check for frontend changes
        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        id: paths-filter
        with:
          filters: |
            frontend:
              - packages/frontend/**
              - packages/@n8n/design-system/**
              - packages/@n8n/chat/**
              - packages/@n8n/codemirror-lang/**
              - .bundlemonrc.json
              - .github/workflows/ci-pull-requests.yml
            non-python:
              - '**'
              - '!packages/@n8n/task-runner-python/**'
      - name: Setup and Build
        if: steps.paths-filter.outputs.non-python == 'true'
        uses: n8n-io/n8n/.github/actions/setup-nodejs-blacksmith@f5fbbbe0a28a886451c886cac6b49192a39b0eea # v1.104.1

      - name: Run format check
        if: steps.paths-filter.outputs.non-python == 'true'
        run: pnpm format:check

      - name: Upload Frontend Build Artifacts
        if: steps.paths-filter.outputs.frontend == 'true'
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: editor-ui-dist
          path: packages/frontend/editor-ui/dist/
          retention-days: 1

  bundle-size-check:
    name: Bundle Size Check
    needs: install-and-build
    if: needs.install-and-build.outputs.frontend_changed == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          ref: refs/pull/${{ github.event.pull_request.number }}/merge

      - name: Setup pnpm CLI
        uses: pnpm/action-setup@a7487c7e89a18df4991f7f222e4898a00d66ddda # v4.1.0

      - name: Setup Node.js
        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
        with:
          node-version: '22.x'
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Download Frontend Build Artifacts
        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
          name: editor-ui-dist
          path: packages/frontend/editor-ui/dist/

      - name: BundleMon
        uses: lironer/bundlemon-action@cadbdd58f86faf1900725ef69d455444124b3748 # v1.3.0

  unit-test:
    name: Unit tests
    if: needs.install-and-build.outputs.non_python_changed == 'true'
    uses: ./.github/workflows/units-tests-reusable.yml
    needs: install-and-build
    with:
      ref: refs/pull/${{ github.event.pull_request.number }}/merge
      collectCoverage: true
    secrets:
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

  typecheck:
    name: Typecheck
    if: needs.install-and-build.outputs.non_python_changed == 'true'
    runs-on: blacksmith-4vcpu-ubuntu-2204
    needs: install-and-build
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          ref: refs/pull/${{ github.event.pull_request.number }}/merge

      - name: Setup Node.js
        uses: n8n-io/n8n/.github/actions/setup-nodejs-blacksmith@f5fbbbe0a28a886451c886cac6b49192a39b0eea # v1.104.1
        with:
          build-command: pnpm typecheck

  lint:
    name: Lint
    if: needs.install-and-build.outputs.non_python_changed == 'true'
    uses: ./.github/workflows/linting-reusable.yml
    needs: install-and-build
    with:
      ref: refs/pull/${{ github.event.pull_request.number }}/merge

  e2e-test:
    name: E2E Tests
    needs: [install-and-build, unit-test, typecheck, lint]
    if: |
      always() &&
      needs.install-and-build.result == 'success' &&
      needs.unit-test.result != 'failure' &&
      needs.typecheck.result != 'failure' &&
      needs.lint.result != 'failure'
    uses: ./.github/workflows/playwright-test-reusable.yml
    secrets: inherit

  e2e-checks:
    name: E2E - Checks
    runs-on: ubuntu-latest
    needs: [e2e-test]
    if: always()
    steps:
      - name: Fail if E2E tests failed
        if: needs.e2e-test.result == 'failure'
        run: exit 1