name: E2E Tests

on:
  pull_request:
    branches: [main, dev]
    types: [opened, synchronize, reopened, ready_for_review]
    paths:
      - 'surfsense_web/**'
      - 'surfsense_backend/**'
      - 'docker/docker-compose.e2e.yml'
      - '.github/workflows/e2e-tests.yml'
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  e2e:
    name: Journey
    runs-on: ubuntu-latest
    if: github.event.pull_request.draft == false
    timeout-minutes: 30

    env:
      # Test user that the backend creates via /auth/register before Playwright runs.
      PLAYWRIGHT_TEST_EMAIL: e2e-test@surfsense.net
      PLAYWRIGHT_TEST_PASSWORD: E2eTestPassword123!
      # Frontend env: Playwright's webServer (surfsense_web/playwright.config.ts)
      # spawns `pnpm build && pnpm start` in CI; these get baked into the build.
      NEXT_PUBLIC_FASTAPI_BACKEND_URL: http://localhost:8000
      NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE: LOCAL
      # Shared secret for the test-only POST /__e2e__/auth/token endpoint.
      # Must match docker-compose.e2e.yml's backend env (x-backend-env).
      E2E_MINT_SECRET: e2e-mint-secret-not-for-production

    steps:
      - uses: actions/checkout@v6

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      # ─── Backend stack ─────────────────────────────────────────────────
      # Builds the e2e image (multi-stage, deps cached via GHA), brings up
      # db + redis + backend + celery_worker, blocks until every healthcheck
      # is green. No `uv` invocation on the runner; no PID files; no curl
      # polling loops; readiness is gated by Docker healthchecks.
      - name: Build & start backend stack
        run: |
          docker compose -f docker/docker-compose.e2e.yml \
            up -d --build --wait --wait-timeout 300

      - name: Show backend stack status
        if: always()
        run: docker compose -f docker/docker-compose.e2e.yml ps

      - name: Register E2E test user
        run: |
          # 200/201 = created, 400 = already exists (idempotent across reruns).
          STATUS=$(curl -s -o /tmp/register.json -w "%{http_code}" \
            -X POST http://localhost:8000/auth/register \
            -H "Content-Type: application/json" \
            -d "{\"email\":\"${PLAYWRIGHT_TEST_EMAIL}\",\"password\":\"${PLAYWRIGHT_TEST_PASSWORD}\"}")
          echo "Register status: ${STATUS}"
          cat /tmp/register.json
          if [ "${STATUS}" != "200" ] && [ "${STATUS}" != "201" ] && [ "${STATUS}" != "400" ]; then
            echo "::error::Failed to register test user (status ${STATUS})"
            exit 1
          fi

          # Flush auth rate-limit counters so Playwright starts clean.
          docker compose -f docker/docker-compose.e2e.yml exec -T redis \
            sh -c "redis-cli --scan --pattern 'surfsense:auth_rate_limit:*' \
              | xargs -r redis-cli DEL" || true

      # ─── Frontend (host-side) ──────────────────────────────────────────
      # Playwright's webServer block in playwright.config.ts spawns
      # `pnpm build && pnpm start` in CI mode and waits for :3000.
      - uses: actions/setup-node@v6
        with:
          node-version: '20'

      - uses: pnpm/action-setup@v6

      - name: Get pnpm store directory
        id: pnpm-cache
        shell: bash
        run: echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_OUTPUT

      - name: Cache pnpm store
        uses: actions/cache@v5
        with:
          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
          key: pnpm-${{ runner.os }}-${{ hashFiles('surfsense_web/pnpm-lock.yaml') }}
          restore-keys: pnpm-${{ runner.os }}-

      - name: Install web dependencies
        working-directory: surfsense_web
        run: pnpm install --frozen-lockfile

      - name: Cache Playwright browsers
        id: playwright-cache
        uses: actions/cache@v5
        with:
          path: ~/.cache/ms-playwright
          key: playwright-${{ runner.os }}-${{ hashFiles('surfsense_web/pnpm-lock.yaml') }}

      - name: Install Playwright browsers
        if: steps.playwright-cache.outputs.cache-hit != 'true'
        working-directory: surfsense_web
        run: pnpm exec playwright install --with-deps chromium

      - name: Install Playwright system deps (cache hit)
        if: steps.playwright-cache.outputs.cache-hit == 'true'
        working-directory: surfsense_web
        run: pnpm exec playwright install-deps chromium

      - name: Cache Next.js build
        uses: actions/cache@v5
        with:
          path: surfsense_web/.next/cache
          key: nextjs-${{ runner.os }}-${{ hashFiles('surfsense_web/pnpm-lock.yaml') }}-${{ github.sha }}
          restore-keys: |
            nextjs-${{ runner.os }}-${{ hashFiles('surfsense_web/pnpm-lock.yaml') }}-
            nextjs-${{ runner.os }}-

      # ─── Tests ─────────────────────────────────────────────────────────
      - name: Run Playwright tests
        working-directory: surfsense_web
        run: pnpm test:e2e:prod

      # ─── Failure diagnostics ───────────────────────────────────────────
      - name: Dump backend stack logs on failure
        if: ${{ failure() || cancelled() }}
        run: |
          mkdir -p ./compose-logs
          docker compose -f docker/docker-compose.e2e.yml logs --no-color --timestamps \
            > ./compose-logs/all-services.log 2>&1 || true
          for svc in db redis backend celery_worker; do
            docker compose -f docker/docker-compose.e2e.yml logs --no-color --timestamps "$svc" \
              > "./compose-logs/${svc}.log" 2>&1 || true
          done
          docker compose -f docker/docker-compose.e2e.yml ps \
            > ./compose-logs/ps.txt 2>&1 || true

      # ─── Artifacts ─────────────────────────────────────────────────────
      - name: Upload Playwright HTML report
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: playwright-report
          path: surfsense_web/playwright-report/
          retention-days: 14

      - name: Upload Playwright traces
        if: failure()
        uses: actions/upload-artifact@v7
        with:
          name: playwright-traces
          path: surfsense_web/test-results/
          retention-days: 14

      - name: Upload backend stack logs
        if: ${{ failure() || cancelled() }}
        uses: actions/upload-artifact@v7
        with:
          name: backend-stack-logs
          path: ./compose-logs/
          retention-days: 7

      # ─── Teardown ──────────────────────────────────────────────────────
      - name: Tear down backend stack
        if: always()
        run: docker compose -f docker/docker-compose.e2e.yml down -v --remove-orphans