name: CD Preprod

# Full pipeline triggered on every push to preprod.
# Flow: lint → unit tests → integration tests → docker build → deploy → notify
#
# Secrets required:
#   REGISTRY_TOKEN            — Scaleway registry (read/write)
#   NEXT_PUBLIC_API_URL       — https://api.preprod.xpeditis.com
#   NEXT_PUBLIC_APP_URL       — https://preprod.xpeditis.com
#   PORTAINER_WEBHOOK_BACKEND — Portainer webhook (preprod backend)
#   PORTAINER_WEBHOOK_FRONTEND— Portainer webhook (preprod frontend)
#   PREPROD_BACKEND_URL       — https://api.preprod.xpeditis.com
#   PREPROD_FRONTEND_URL      — https://preprod.xpeditis.com
#   DISCORD_WEBHOOK_URL

on:
  push:
    branches: [preprod]

env:
  REGISTRY: rg.fr-par.scw.cloud/weworkstudio

jobs:
  security:
    name: Security gate
    runs-on: ubuntu-latest
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/security

  # ── 1. Lint ─────────────────────────────────────────────────────────
  backend-quality:
    name: Backend — Lint
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: apps/backend
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/setup-node
      - run: npm ci --legacy-peer-deps
      - run: npm run lint -- --no-fix

  frontend-quality:
    name: Frontend — Lint & Type-check
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: apps/frontend
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/setup-node
      - run: npm ci --legacy-peer-deps
      - run: npm run lint
      - run: npm run type-check

  # ── 2. Unit Tests ────────────────────────────────────────────────────
  backend-tests:
    name: Backend — Unit Tests
    runs-on: ubuntu-latest
    needs: backend-quality
    defaults:
      run:
        working-directory: apps/backend
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/setup-node
      - run: npm ci --legacy-peer-deps
      - run: npm test -- --ci --runInBand

  frontend-tests:
    name: Frontend — Unit Tests
    runs-on: ubuntu-latest
    needs: frontend-quality
    defaults:
      run:
        working-directory: apps/frontend
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/setup-node
      - run: npm ci --legacy-peer-deps
      - run: npm test -- --ci --runInBand

  # ── 3. Integration Tests ─────────────────────────────────────────────
  integration-tests:
    name: Backend — Integration Tests
    runs-on: ubuntu-latest
    needs: [backend-tests, frontend-tests]
    defaults:
      run:
        working-directory: apps/backend

    services:
      postgres:
        image: postgres:15-alpine
        env:
          POSTGRES_USER: xpeditis_test
          POSTGRES_PASSWORD: xpeditis_test_password
          POSTGRES_DB: xpeditis_test
        options: >-
          --health-cmd pg_isready
          --health-interval 5s
          --health-timeout 5s
          --health-retries 10
      redis:
        image: redis:7-alpine
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 10

    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/setup-node
      - run: npm ci --legacy-peer-deps
      - name: Run integration tests
        env:
          NODE_ENV: test
          TEST_DB_HOST: postgres
          TEST_DB_PORT: 5432
          TEST_DB_USER: xpeditis_test
          TEST_DB_PASSWORD: xpeditis_test_password
          TEST_DB_NAME: xpeditis_test
          DATABASE_HOST: postgres
          DATABASE_PORT: 5432
          DATABASE_USER: xpeditis_test
          DATABASE_PASSWORD: xpeditis_test_password
          DATABASE_NAME: xpeditis_test
          DATABASE_SYNCHRONIZE: 'false'
          REDIS_HOST: redis
          REDIS_PORT: 6379
          REDIS_PASSWORD: ''
          JWT_SECRET: test-secret-key-ci
          SMTP_HOST: localhost
          SMTP_PORT: 1025
          SMTP_FROM: test@xpeditis.com
        run: npm run test:integration -- --ci --runInBand

  # ── 4. Docker Build & Push ───────────────────────────────────────────
  # Tags: preprod (latest for this env) + preprod-SHA (used by prod for exact promotion)
  build-backend:
    name: Build Backend
    runs-on: ubuntu-latest
    needs: [security, integration-tests]
    outputs:
      sha: ${{ steps.sha.outputs.short }}
      digest: ${{ steps.build.outputs.digest }}
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - name: Short SHA
        id: sha
        run: echo "short=$(echo ${{ github.sha }} | cut -c1-7)" >> $GITHUB_OUTPUT
      - uses: https://github.com/docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3
        with:
          platforms: amd64,arm64
          cache-image: false
      - uses: https://github.com/docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
      - uses: https://github.com/docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
        with:
          registry: ${{ env.REGISTRY }}
          username: nologin
          password: ${{ secrets.REGISTRY_TOKEN }}
      - id: build
        uses: https://github.com/docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
        with:
          context: ./apps/backend
          file: ./apps/backend/Dockerfile
          push: true
          tags: |
            ${{ env.REGISTRY }}/xpeditis-backend:preprod-${{ steps.sha.outputs.short }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/xpeditis-backend:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/xpeditis-backend:buildcache,mode=max
          platforms: linux/amd64,linux/arm64

  build-frontend:
    name: Build Frontend
    runs-on: ubuntu-latest
    needs: [security, integration-tests]
    outputs:
      sha: ${{ steps.sha.outputs.short }}
      digest: ${{ steps.build.outputs.digest }}
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - name: Short SHA
        id: sha
        run: echo "short=$(echo ${{ github.sha }} | cut -c1-7)" >> $GITHUB_OUTPUT
      - uses: https://github.com/docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3
        with:
          platforms: amd64,arm64
          cache-image: false
      - uses: https://github.com/docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
      - uses: https://github.com/docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
        with:
          registry: ${{ env.REGISTRY }}
          username: nologin
          password: ${{ secrets.REGISTRY_TOKEN }}
      - id: build
        uses: https://github.com/docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
        with:
          context: ./apps/frontend
          file: ./apps/frontend/Dockerfile
          push: true
          tags: |
            ${{ env.REGISTRY }}/xpeditis-frontend:preprod-${{ steps.sha.outputs.short }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/xpeditis-frontend:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/xpeditis-frontend:buildcache,mode=max
          platforms: linux/amd64,linux/arm64
          build-args: |
            NEXT_PUBLIC_API_URL=${{ secrets.NEXT_PUBLIC_API_URL }}
            NEXT_PUBLIC_APP_URL=${{ secrets.NEXT_PUBLIC_APP_URL }}

  build-log-exporter:
    name: Build Log Exporter
    runs-on: ubuntu-latest
    needs: [security, integration-tests]
    outputs:
      sha: ${{ steps.sha.outputs.short }}
      digest: ${{ steps.build.outputs.digest }}
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - name: Short SHA
        id: sha
        run: echo "short=$(echo ${{ github.sha }} | cut -c1-7)" >> $GITHUB_OUTPUT
      - uses: https://github.com/docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3
        with:
          platforms: amd64,arm64
          cache-image: false
      - uses: https://github.com/docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
      - uses: https://github.com/docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
        with:
          registry: ${{ env.REGISTRY }}
          username: nologin
          password: ${{ secrets.REGISTRY_TOKEN }}
      - id: build
        uses: https://github.com/docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
        with:
          context: ./apps/log-exporter
          file: ./apps/log-exporter/Dockerfile
          push: true
          tags: |
            ${{ env.REGISTRY }}/xpeditis-log-exporter:preprod-${{ steps.sha.outputs.short }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/xpeditis-log-exporter:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/xpeditis-log-exporter:buildcache,mode=max
          platforms: linux/amd64,linux/arm64

  image-security:
    name: Image security (${{ matrix.service }}, ${{ matrix.arch }})
    runs-on: ubuntu-latest
    needs: [build-backend, build-frontend, build-log-exporter]
    strategy:
      fail-fast: false
      matrix:
        service: [backend, frontend, log-exporter]
        arch: [amd64, arm64]
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: ./.gitea/actions/setup-trivy
      - uses: https://github.com/docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
        with:
          registry: ${{ env.REGISTRY }}
          username: nologin
          password: ${{ secrets.REGISTRY_TOKEN }}
      - name: Scan the exact image before deployment
        env:
          IMAGE: ${{ env.REGISTRY }}/xpeditis-${{ matrix.service }}@${{ needs[format('build-{0}', matrix.service)].outputs.digest }}
          PLATFORM: linux/${{ matrix.arch }}
        run: |
          trivy image --platform "$PLATFORM" --scanners vuln --severity HIGH,CRITICAL \
            --ignore-unfixed=false --exit-code 1 --timeout 15m --format json \
            --output "$RUNNER_TEMP/image-security.json" "$IMAGE"
      - name: Save image report
        if: always()
        uses: https://github.com/actions/upload-artifact@ff15f0306b3f739f7b6fd43fb5d26cd321bd4de5 # v3, Gitea artifact protocol
        with:
          name: image-security-${{ matrix.service }}-${{ matrix.arch }}
          path: ${{ runner.temp }}/image-security.json
          retention-days: 14
          if-no-files-found: error

  # ── 5. Deploy via Portainer ──────────────────────────────────────────
  deploy:
    name: Deploy to Preprod
    runs-on: xpeditis-deploy
    needs: [build-backend, build-frontend, build-log-exporter, image-security]
    steps:
      - uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          persist-credentials: false
      - uses: https://github.com/docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
      - uses: https://github.com/docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
        with:
          registry: ${{ env.REGISTRY }}
          username: nologin
          password: ${{ secrets.REGISTRY_TOKEN }}
      - name: Publish scanned preprod images
        env:
          BACKEND_DIGEST: ${{ needs.build-backend.outputs.digest }}
          FRONTEND_DIGEST: ${{ needs.build-frontend.outputs.digest }}
          LOG_EXPORTER_DIGEST: ${{ needs.build-log-exporter.outputs.digest }}
        run: |
          for service in backend frontend log-exporter; do
            case "$service" in
              backend) digest="$BACKEND_DIGEST" ;;
              frontend) digest="$FRONTEND_DIGEST" ;;
              log-exporter) digest="$LOG_EXPORTER_DIGEST" ;;
            esac
            docker buildx imagetools create \
              --tag "$REGISTRY/xpeditis-$service:preprod" \
              "$REGISTRY/xpeditis-$service@$digest"
          done
      - name: Deploy backend
        run: |
          HTTP_CODE=$(curl --connect-timeout 10 --max-time 30 -s -o /dev/null -w "%{http_code}" -X POST "${{ secrets.PORTAINER_WEBHOOK_BACKEND }}")
          echo "Portainer response: HTTP $HTTP_CODE"
          if [[ "$HTTP_CODE" != "2"* ]]; then
            echo "ERROR: Portainer webhook failed with HTTP $HTTP_CODE"
            exit 1
          fi
          echo "Backend webhook triggered."
      - name: Wait for backend startup
        run: sleep 20
      - name: Deploy frontend
        run: |
          HTTP_CODE=$(curl --connect-timeout 10 --max-time 30 -s -o /dev/null -w "%{http_code}" -X POST "${{ secrets.PORTAINER_WEBHOOK_FRONTEND }}")
          echo "Portainer response: HTTP $HTTP_CODE"
          if [[ "$HTTP_CODE" != "2"* ]]; then
            echo "ERROR: Portainer webhook failed with HTTP $HTTP_CODE"
            exit 1
          fi
          echo "Frontend webhook triggered."

      - name: Verify backend health
        env:
          BASE_URL: ${{ secrets.PREPROD_BACKEND_URL }}
        run: bash scripts/ci/health-check.sh "${BASE_URL:?Missing PREPROD_BACKEND_URL}/api/v1/health"
      - name: Verify frontend health
        env:
          BASE_URL: ${{ secrets.PREPROD_FRONTEND_URL }}
        run: bash scripts/ci/health-check.sh "${BASE_URL:?Missing PREPROD_FRONTEND_URL}"

      - name: Mark successfully deployed preprod images
        env:
          BACKEND_DIGEST: ${{ needs.build-backend.outputs.digest }}
          LOG_EXPORTER_DIGEST: ${{ needs.build-log-exporter.outputs.digest }}
        run: |
          docker buildx imagetools create \
            --tag "$REGISTRY/xpeditis-backend:validated-preprod-$GITHUB_SHA" \
            "$REGISTRY/xpeditis-backend@$BACKEND_DIGEST"
          docker buildx imagetools create \
            --tag "$REGISTRY/xpeditis-log-exporter:validated-preprod-$GITHUB_SHA" \
            "$REGISTRY/xpeditis-log-exporter@$LOG_EXPORTER_DIGEST"

  # ── Notifications ────────────────────────────────────────────────────
  notify-success:
    name: Notify Success
    runs-on: ubuntu-latest
    needs: [build-backend, build-frontend, deploy]
    if: success()
    steps:
      - run: |
          curl -s -H "Content-Type: application/json" -d '{
            "embeds": [{
              "title": "✅ Preprod Deployed & Healthy",
              "color": 3066993,
              "fields": [
                {"name": "Author", "value": "${{ github.actor }}", "inline": true},
                {"name": "SHA", "value": "`${{ needs.build-backend.outputs.sha }}`", "inline": true},
                {"name": "Workflow", "value": "[${{ github.run_id }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})", "inline": false}
              ],
              "footer": {"text": "Xpeditis CI/CD • Preprod"}
            }]
          }' ${{ secrets.DISCORD_WEBHOOK_URL }}

  notify-failure:
    name: Notify Failure
    runs-on: ubuntu-latest
    needs: [security, backend-quality, frontend-quality, backend-tests, frontend-tests, integration-tests, build-backend, build-frontend, build-log-exporter, image-security, deploy]
    if: failure()
    steps:
      - run: |
          curl -s -H "Content-Type: application/json" -d '{
            "embeds": [{
              "title": "❌ Preprod Pipeline Failed",
              "description": "Pipeline en échec. Vérifiez les rapports et l état réel des services avant de relancer.",
              "color": 15158332,
              "fields": [
                {"name": "Author", "value": "${{ github.actor }}", "inline": true},
                {"name": "Workflow", "value": "[${{ github.run_id }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})", "inline": false}
              ],
              "footer": {"text": "Xpeditis CI/CD • Preprod"}
            }]
          }' ${{ secrets.DISCORD_WEBHOOK_URL }}