name: backend-ci-cd

# CI/CD: только push git-тега. Pre-deploy tests на test|stage; prod — без тестов (ручной аппрув релиза).

on:
  push:
    tags:
      - 'backend-v*'

env:
  REGISTRY: gitea-http.gitea.svc.cluster.local:3000
  IMAGE: gitea-http.gitea.svc.cluster.local:3000/sova/backend
  IMAGE_DEPLOY: git.sova.local/sova/backend

jobs:
  parse-tag:
    runs-on: ubuntu-latest
    outputs:
      full_tag: ${{ steps.meta.outputs.full_tag }}
      env: ${{ steps.meta.outputs.env }}
      version: ${{ steps.meta.outputs.version }}
    steps:
      - name: Parse tag
        id: meta
        run: |
          TAG="${GITHUB_REF#refs/tags/}"
          echo "full_tag=$TAG" >> "$GITHUB_OUTPUT"
          echo "env=$(echo "$TAG" | sed -E 's/backend-v([0-9.]+)-([a-z]+)/\2/')" >> "$GITHUB_OUTPUT"
          echo "version=$(echo "$TAG" | sed -E 's/backend-v([0-9.]+).*/\1/')" >> "$GITHUB_OUTPUT"

  test:
    needs: [parse-tag]
    if: needs.parse-tag.outputs.env != 'prod'
    runs-on: ubuntu-latest
    services:
      postgres:
        image: postgres:16-alpine
        env:
          POSTGRES_USER: ci
          POSTGRES_PASSWORD: ci
          POSTGRES_DB: ci
        ports:
          - 5432:5432
        options: >-
          --health-cmd "pg_isready -U ci -d ci"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 10
    steps:
      - uses: actions/checkout@v4
      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.4'
          extensions: pdo_pgsql, redis, intl, zip, gd
          coverage: xdebug
      - name: Prepare CI environment
        run: |
          cp .env.ci .env.local
          mkdir -p config/jwt var/coverage
          openssl genrsa -out config/jwt/private.pem 2048
          openssl rsa -pubout -in config/jwt/private.pem -out config/jwt/public.pem
      - run: composer install --prefer-dist --no-interaction
      - name: Unit tests + coverage
        run: composer phpunit:coverage
      - name: Integration tests (test contour only)
        if: needs.parse-tag.outputs.env == 'test'
        continue-on-error: true
        run: |
          php bin/console doctrine:database:create --if-not-exists --env=test || true
          php bin/console doctrine:migrations:migrate --no-interaction --env=test || true
          composer phpunit:integration
      - name: Upload coverage
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: backend-coverage-${{ needs.parse-tag.outputs.full_tag }}
          path: var/coverage/
          retention-days: 14
      - run: composer audit || true

  test-prod-skip:
    needs: [parse-tag]
    if: needs.parse-tag.outputs.env == 'prod'
    runs-on: ubuntu-latest
    steps:
      - run: echo "Prod tag — automated tests skipped (no tests on production contour)."

  build-and-push:
    needs: [parse-tag, test, test-prod-skip]
    if: always() && (needs.test.result == 'success' || needs.test.result == 'skipped') && (needs.test-prod-skip.result == 'success' || needs.test-prod-skip.result == 'skipped')
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Docker login
        env:
          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
        run: |
          echo "${REGISTRY_PASSWORD}" | docker login "$REGISTRY" -u "${REGISTRY_USER}" --password-stdin
      - name: Build and push
        run: |
          TAG="${{ needs.parse-tag.outputs.full_tag }}"
          docker build -f Dockerfile -t "$IMAGE:${TAG}" -t "$IMAGE:${{ needs.parse-tag.outputs.version }}" .
          docker push "$IMAGE:${TAG}"
          docker push "$IMAGE:${{ needs.parse-tag.outputs.version }}"

  deploy-gitops:
    needs: [build-and-push, parse-tag]
    runs-on: ubuntu-latest
    steps:
      - name: Bump image tag in sova-deploy
        env:
          DEPLOY_TOKEN: ${{ secrets.DEPLOY_TOKEN }}
          DEPLOY_USER: ${{ secrets.REGISTRY_USER }}
        run: |
          REPO_URL="http://${DEPLOY_USER}:${DEPLOY_TOKEN}@gitea-http.gitea.svc.cluster.local:3000/sova/sova-deploy.git"
          ENV="${{ needs.parse-tag.outputs.env }}"
          TAG="${{ needs.parse-tag.outputs.full_tag }}"
          case "${ENV}" in
            test|stage|prod) ;;
            *) echo "Unknown env from tag: ${ENV} (expected test|stage|prod)"; exit 1 ;;
          esac
          git clone --branch "${ENV}" --single-branch "${REPO_URL}" sova-deploy 2>/dev/null \
            || { git clone "${REPO_URL}" sova-deploy && cd sova-deploy && git checkout -B "${ENV}"; }
          cd sova-deploy
          git config user.email "ci-bot@sova.local"
          git config user.name "sova-ci"
          MAX_RETRIES=5
          case "$(uname -m)" in
            x86_64|amd64) YQ_ARCH=amd64 ;;
            aarch64|arm64) YQ_ARCH=arm64 ;;
            *) echo "Unsupported arch: $(uname -m)"; exit 1 ;;
          esac
          curl -sSL -o /usr/local/bin/yq "https://github.com/mikefarah/yq/releases/download/v4.44.3/yq_linux_${YQ_ARCH}"
          chmod +x /usr/local/bin/yq
          for attempt in $(seq 1 $MAX_RETRIES); do
            git pull --rebase origin "${ENV}"
            yq -i ".image.repository = \"${IMAGE_DEPLOY}\"" "apps/backend/values-${ENV}.yaml"
            yq -i ".image.tag = \"${TAG}\"" "apps/backend/values-${ENV}.yaml"
            yq -i ".image.pullPolicy = \"IfNotPresent\"" "apps/backend/values-${ENV}.yaml"
            git add "apps/backend/values-${ENV}.yaml"
            git diff --cached --quiet && { echo "No changes"; exit 0; }
            git commit -m "chore(backend): bump ${ENV} to ${TAG}"
            if git push origin "${ENV}"; then
              echo "Push OK on attempt ${attempt}"
              exit 0
            fi
            echo "Push failed, retry ${attempt}/${MAX_RETRIES}..."
            git reset --hard HEAD~1
            sleep $((attempt * 2))
          done
          echo "Failed to push after ${MAX_RETRIES} attempts"
          exit 1