name: CI / CD Pipeline

on:
  push:
    branches: [ main, develop ]
  pull_request:
  workflow_dispatch:

jobs:
  # ============================================================
  # JOB 1 : CI & Quality Gate
  # ============================================================
  build:
    runs-on: self-hosted
    timeout-minutes: 15
    steps:
      - name: Checkout (HTTPS)
        uses: actions/checkout@v4

      # ── [1] pnpm ต้องมาก่อน setup-node เสมอ ────────────────
      - name: ⚙️ Install pnpm
        uses: pnpm/action-setup@v4
        # version อ่านจาก packageManager field ใน package.json อัตโนมัติ

      - name: ⚙️ Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: 20
          # ลบ cache: "pnpm" ออก — ใช้ volume mount บน runner แทน

          # ── [2] ชี้ store ไปที่ volume ที่ mount ไว้ ─────────────
      - name: 🔧 Set pnpm store path
        run: pnpm config set store-dir /root/.local/share/pnpm

      - name: 📦 Install deps
        run: pnpm install --frozen-lockfile

      - name: 🧹 Lint
        run: pnpm lint

      - name: 🔍 Security & quality checks
        run: |
          # UUID misuse check (ADR-019)
          if grep -r --include="*.ts" --include="*.tsx" --exclude-dir={node_modules,.next,.agents,.git,scripts,test,__tests__} "parseInt(.*uuid" .; then
            echo "❌ UUID misuse detected"
            exit 1
          fi
          # console.log check (Clean Code)
          if grep -r --include="*.ts" --include="*.tsx" --exclude-dir={node_modules,.next,.agents,.git,scripts,test,__tests__} "console.log" .; then
            echo "❌ console.log detected"
            exit 1
          fi

      # ── [3] แยก step — เห็น failure ได้ชัดขึ้น ──────────────
      - name: 🧪 Test backend
        run: pnpm test
        working-directory: backend

      - name: 🧪 Test frontend
        run: pnpm test run
        working-directory: frontend

  # ============================================================
  # JOB 2 : Deploy — Trigger Blue-Green on QNAP
  # ============================================================
  deploy:
    needs: build
    if: github.ref == 'refs/heads/main'
    runs-on: self-hosted
    steps:
      - name: " Checkout"
        uses: actions/checkout@v4

      - name: " Setup SSH Key and Deploy to QNAP"
        run: |
          # Setup SSH key authentication
          mkdir -p ~/.ssh
          echo "${{ secrets.SSH_KEY }}" > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          ssh-keyscan -p ${{ secrets.PORT }} ${{ secrets.HOST }} >> ~/.ssh/known_hosts

          # Debug: Check SSH key
          echo "SSH key file exists: $(test -f ~/.ssh/id_rsa && echo 'YES' || echo 'NO')"
          echo "SSH key permissions: $(ls -la ~/.ssh/id_rsa)"
          echo "SSH key first line: $(head -1 ~/.ssh/id_rsa)"

          # Create remote deployment script
          REMOTE_SCRIPT=$(cat << 'SCRIPT_EOF'
          set -e
          export PATH="/share/CACHEDEV1_DATA/.qpkg/container-station/bin:/opt/bin:/usr/local/bin:/usr/bin:/bin:$PATH"

          echo "=========================================="
          echo "Starting QNAP Deployment Process"
          echo "=========================================="

          # Verify Docker is accessible
          if ! docker version > /dev/null 2>&1; then
            echo " Docker not accessible. Check Container Station."
            exit 1
          fi
          echo " Docker accessible"

          # Sync scripts first
          echo " Syncing deployment scripts..."
          cd /share/np-dms/app/source/lcbp3

          # Check if directory exists
          if [ ! -d ".git" ]; then
            echo " Git repository not found at expected path"
            exit 1
          fi

          git fetch origin main
          git reset --hard origin/main
          echo " Code synced"

          # Ensure scripts are executable
          chmod +x scripts/deploy.sh scripts/rollback.sh 2>/dev/null || true

          mkdir -p /share/np-dms/app/logs

          # Note: Docker build cache is preserved for faster builds
          # Only prune cache manually when needed: docker builder prune -f

          echo " Executing deployment..."
          ./scripts/deploy.sh

          echo " Deployment completed successfully"
          SCRIPT_EOF
          )

          # Retry logic for SSH connection
          max_attempts=3
          attempt=1

          while [ $attempt -le $max_attempts ]; do
            echo " Deployment attempt $attempt/$max_attempts..."

            # Debug: Test SSH connection first
            echo "Testing SSH connection..."
            ssh -o StrictHostKeyChecking=no \
                -o ConnectTimeout=10 \
                -o BatchMode=yes \
                -o PasswordAuthentication=no \
                -o LogLevel=DEBUG3 \
                -i ~/.ssh/id_rsa \
                -p ${{ secrets.PORT }} ${{ secrets.USERNAME }}@${{ secrets.HOST }} 'echo "SSH auth successful"'

            if echo "$REMOTE_SCRIPT" | ssh -o StrictHostKeyChecking=no \
                -o ConnectTimeout=60 \
                -o ServerAliveInterval=30 \
                -o ServerAliveCountMax=60 \
                -o TCPKeepAlive=yes \
                -i ~/.ssh/id_rsa \
                -p ${{ secrets.PORT }} ${{ secrets.USERNAME }}@${{ secrets.HOST }} 'bash -s'; then
              echo " Deployment successful!"
              exit 0
            else
              echo " Attempt $attempt failed"
              if [ $attempt -lt $max_attempts ]; then
                echo " Retrying in 10 seconds..."
                sleep 10
              fi
            fi

            attempt=$((attempt + 1))
          done

          echo " All deployment attempts failed"
          exit 1
        timeout-minutes: 20