# =============================================================================
# GitHub Actions - Tareas de Mantenimiento
# Fase 7.4 - Go Live y Soporte
# =============================================================================
#
# Este workflow ejecuta tareas de mantenimiento programadas:
# - Backup de base de datos
# - Limpieza de logs
# - Verificación de dependencias
# - Escaneo de seguridad
# =============================================================================

name: Maintenance Tasks

on:
  schedule:
    # Ejecutar diariamente a las 3 AM UTC
    - cron: '0 3 * * *'
  workflow_dispatch:
    inputs:
      task:
        description: 'Tarea a ejecutar'
        required: true
        default: 'backup'
        type: choice
        options:
          - backup
          - cleanup
          - security-scan
          - all

env:
  NODE_VERSION: '20'

jobs:
  # ===========================================================================
  # Job 1: Database Backup
  # ===========================================================================
  backup:
    name: 💾 Database Backup
    runs-on: ubuntu-latest
    if: github.event.schedule || github.event.inputs.task == 'backup' || github.event.inputs.task == 'all'
    environment: production

    steps:
      - name: 📥 Checkout code
        uses: actions/checkout@v4

      - name: 🔐 Setup SSH
        uses: webfactory/ssh-agent@v0.8.0
        with:
          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}

      - name: 💾 Run Backup
        env:
          SERVER_HOST: ${{ secrets.SERVER_HOST }}
          SERVER_USER: ${{ secrets.SERVER_USER }}
        run: |
          mkdir -p ~/.ssh
          ssh-keyscan -H $SERVER_HOST >> ~/.ssh/known_hosts
          
          ssh $SERVER_USER@$SERVER_HOST << 'EOF'
            cd ~/padel-prod
            
            # Ejecutar backup
            docker-compose -f docker-compose.prod.yml exec -T postgres \
              pg_dump -U padeluser padeldb | gzip > backups/backup-$(date +%Y%m%d-%H%M%S).sql.gz
            
            # Limpiar backups antiguos (mantener 30 días)
            find backups -name "backup-*.sql.gz" -type f -mtime +30 -delete
            
            echo "Backup completed!"
            ls -lh backups/
          EOF

      - name: ☁️ Upload to S3
        if: env.AWS_ACCESS_KEY_ID != ''
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          AWS_DEFAULT_REGION: ${{ secrets.AWS_REGION }}
          SERVER_HOST: ${{ secrets.SERVER_HOST }}
          SERVER_USER: ${{ secrets.SERVER_USER }}
        run: |
          ssh $SERVER_USER@$SERVER_HOST << 'EOF'
            cd ~/padel-prod/backups
            
            # Subir último backup a S3
            LATEST=$(ls -t backup-*.sql.gz | head -1)
            aws s3 cp "$LATEST" s3://${{ secrets.S3_BACKUP_BUCKET }}/backups/ \
              --storage-class STANDARD_IA
            
            echo "Backup uploaded to S3: $LATEST"
          EOF
        continue-on-error: true

      - name: 🔔 Notify
        if: always()
        uses: 8398a7/action-slack@v3
        with:
          status: ${{ job.status }}
          channel: '#maintenance'
          text: 'Database backup ${{ job.status }}'
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
        continue-on-error: true

  # ===========================================================================
  # Job 2: Cleanup Logs and Temp Files
  # ===========================================================================
  cleanup:
    name: 🧹 Cleanup
    runs-on: ubuntu-latest
    if: github.event.schedule || github.event.inputs.task == 'cleanup' || github.event.inputs.task == 'all'
    environment: production

    steps:
      - name: 🔐 Setup SSH
        uses: webfactory/ssh-agent@v0.8.0
        with:
          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}

      - name: 🧹 Run Cleanup
        env:
          SERVER_HOST: ${{ secrets.SERVER_HOST }}
          SERVER_USER: ${{ secrets.SERVER_USER }}
        run: |
          mkdir -p ~/.ssh
          ssh-keyscan -H $SERVER_HOST >> ~/.ssh/known_hosts
          
          ssh $SERVER_USER@$SERVER_HOST << 'EOF'
            cd ~/padel-prod
            
            # Limpiar logs antiguos
            docker-compose -f docker-compose.prod.yml exec -T app \
              node dist/scripts/cleanup-logs.js || true
            
            # Limpiar Docker
            docker system prune -f --volumes
            docker volume prune -f
            
            # Limpiar archivos temporales
            sudo find /tmp -type f -atime +7 -delete 2>/dev/null || true
            
            echo "Cleanup completed!"
            df -h
          EOF

  # ===========================================================================
  # Job 3: Security Scan
  # ===========================================================================
  security-scan:
    name: 🔒 Security Scan
    runs-on: ubuntu-latest
    if: github.event.schedule || github.event.inputs.task == 'security-scan' || github.event.inputs.task == 'all'

    steps:
      - name: 📥 Checkout code
        uses: actions/checkout@v4

      - name: ⚙️ Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: './backend/package-lock.json'

      - name: 📦 Install dependencies
        working-directory: ./backend
        run: npm ci

      - name: 🔍 Run npm audit
        working-directory: ./backend
        run: npm audit --audit-level=high
        continue-on-error: true

      - name: 🐳 Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          image-ref: ghcr.io/${{ github.repository }}:latest
          format: 'sarif'
          output: 'trivy-results.sarif'
        continue-on-error: true

      - name: 📤 Upload scan results
        uses: github/codeql-action/upload-sarif@v2
        if: always()
        with:
          sarif_file: 'trivy-results.sarif'
        continue-on-error: true

      - name: 🔔 Notify
        if: always()
        uses: 8398a7/action-slack@v3
        with:
          status: ${{ job.status }}
          channel: '#security'
          text: 'Security scan ${{ job.status }}'
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
        continue-on-error: true

  # ===========================================================================
  # Job 4: Health Check
  # ===========================================================================
  health-check:
    name: 🏥 Health Check
    runs-on: ubuntu-latest
    if: github.event.schedule
    environment: production

    steps:
      - name: 🏥 Check API Health
        run: |
          curl -sf https://api.tudominio.com/api/v1/health || exit 1
          echo "API is healthy!"

      - name: 📊 Get Metrics
        run: |
          curl -sf https://api.tudominio.com/api/v1/health/metrics | jq '.'
        continue-on-error: true

      - name: 🔔 Notify on Failure
        if: failure()
        uses: 8398a7/action-slack@v3
        with:
          status: ${{ job.status }}
          channel: '#alerts'
          text: '🚨 Health check FAILED for production API!'
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}