deploy-backend.yml

name: CD — Deploy Backend & Database Migration

on:
  push:
    branches: ["main", "production"]
    paths:
      - "backend/**"
      - ".github/workflows/deploy-backend.yml"
      - '!**/**/*.md'

  workflow_dispatch: # Memungkinkan trigger deployment secara manual dari GitHub Actions UI

jobs:
  build-and-test:
    name: Build & Test (Bun)
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./backend

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Bun environment
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

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

      - name: Typecheck & Compile (Build)
        run: bun run build

      - name: Run Unit Tests
        run: bun test

  build-and-push-ghcr:
    name: Build & Push Backend Docker Image to GHCR
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GitHub Container Registry (GHCR)
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=sha,format=short
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push Backend Docker image to GHCR
        uses: docker/build-push-action@v6
        with:
          context: ./backend
          file: ./backend/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  deploy-to-production:
    name: Deploy to Server & Run Migrations
    runs-on: ubuntu-latest
    environment: staging

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Copy Backend Docker Compose file via SCP
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          port: ${{ secrets.SERVER_PORT || '22' }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          source: "backend/docker-compose.yml"
          target: "${{ secrets.DEPLOY_PATH_BACKEND }}"

      - name: Deploy & Execute DB Migrations via SSH
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          port: ${{ secrets.SERVER_PORT || '22' }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          command_timeout: 30m
          script_stop: true
          script: |
            echo "=========================================================="
            echo " [1/5] Masuk ke direktori aplikasi & Git Pull"
            echo "=========================================================="
            DEPLOY_DIR="${{ secrets.DEPLOY_PATH_BACKEND }}"
            echo "Directori target deployment: $DEPLOY_DIR"
            cd "$DEPLOY_DIR" || exit 1

            # Jika folder server menggunakan git repo, jalankan pull; jika tidak (hanya hasil SCP), abaikan:
            if [ -d ".git" ]; then
              git fetch --all
              git reset --hard origin/main
            fi

            echo "=========================================================="
            echo " [2/5] Menulis file .env di dalam folder backend/"
            echo "=========================================================="
            cat <<'EOF_ENV' > .env
            ${{ secrets.ENV_PROD_BACKEND }}
            EOF_ENV
            mkdir -p backend
            cp .env backend/.env
            chmod 600 .env backend/.env

            echo "=========================================================="
            echo " [3/5] Mengunduh Docker Image terbaru dari GHCR"
            echo "=========================================================="
            # Login ke GHCR dan pull image (agar server tidak membebani CPU/RAM untuk build)
            echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u "${{ github.actor }}" --password-stdin || true
            docker pull ghcr.io/${{ github.repository }}-backend:latest

            echo "=========================================================="
            echo " [4/5] Menjalankan Database Migrations via Drizzle ORM"
            echo "=========================================================="
            # Memastikan proxy_network dan minigrafana-net tersedia di server
            docker network inspect proxy_network >/dev/null 2>&1 || docker network create proxy_network
            docker network inspect minigrafana-net >/dev/null 2>&1 || docker network create minigrafana-net

            # Menjalankan migrasi Drizzle secara terisolasi ke database production
            docker run --rm --network minigrafana-net --env-file backend/.env ghcr.io/${{ github.repository }}-backend:latest bun run db:migrate:prod

            echo "=========================================================="
            echo " [5/5] Merestart Container Aplikasi Backend"
            echo "=========================================================="
            cd backend && docker compose up -d --force-recreate
            echo "✅ Deployment dan Migrasi Database selesai!"