name: Rollback Deployment

on:
  workflow_dispatch:
    inputs:
      environment:
        description: 'Environment to rollback'
        required: true
        type: choice
        options:
          - production
          - development
      version:
        description: 'Version/tag to rollback to (leave empty for previous)'
        required: false
        type: string

jobs:
  rollback:
    name: Rollback to Previous Version
    runs-on: ubuntu-latest
    environment:
      name: ${{ github.event.inputs.environment }}
    steps:
      - name: Set up SSH
        run: |
          mkdir -p ~/.ssh
          chmod 700 ~/.ssh
          echo "${{ secrets.VPS_SSH_KEY }}" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          ssh-keyscan -p ${{ secrets.VPS_PORT }} ${{ secrets.VPS_HOST }} >> ~/.ssh/known_hosts 2>/dev/null

      - name: Rollback deployment
        run: |
          ssh -i ~/.ssh/deploy_key -p ${{ secrets.VPS_PORT }} ${{ secrets.VPS_USER }}@${{ secrets.VPS_HOST }} bash -s << 'ENDSSH'
          set -e
          cd /opt/littleshop

          VERSION="${{ github.event.inputs.version }}"
          if [ -z "$VERSION" ]; then
            echo "No version specified, using 'previous' tag"
            # Tag previous version if it exists
            docker tag localhost:5000/littleshop:previous localhost:5000/littleshop:latest || {
              echo "❌ No previous version found to rollback to"
              exit 1
            }
            docker tag localhost:5000/telebot:previous localhost:5000/telebot:latest || {
              echo "❌ No previous TeleBot version found to rollback to"
              exit 1
            }
          else
            echo "Rolling back to version: $VERSION"
            docker tag localhost:5000/littleshop:$VERSION localhost:5000/littleshop:latest || {
              echo "❌ Version $VERSION not found for LittleShop"
              exit 1
            }
            docker tag localhost:5000/telebot:$VERSION localhost:5000/telebot:latest || {
              echo "❌ Version $VERSION not found for TeleBot"
              exit 1
            }
          fi

          # Stop current containers
          echo "Stopping current containers..."
          docker-compose down --remove-orphans
          docker stop telebot-service 2>/dev/null || true
          docker rm telebot-service 2>/dev/null || true

          # Start with rolled back version
          echo "Starting with previous version..."
          docker-compose up -d

          # Start TeleBot
          docker run -d \
            --name telebot-service \
            --restart unless-stopped \
            --network silverpay_silverpay-network \
            -e ASPNETCORE_URLS=http://+:5010 \
            -e LittleShop__ApiUrl=http://littleshop:5000 \
            -e LittleShop__UseTor=false \
            -e Privacy__EnableTor=true \
            -e Privacy__TorSocksHost=tor-gateway \
            -e Privacy__TorSocksPort=9050 \
            localhost:5000/telebot:latest

          docker network connect littleshop_littleshop-network telebot-service

          # Health check
          echo "Waiting for services to start..."
          sleep 30

          echo "Running health checks..."
          for i in 1 2 3 4 5 6; do
            if curl -f -s http://localhost:5100/api/catalog/products > /dev/null 2>&1; then
              echo "✅ Rollback successful - health check passed"
              exit 0
            fi
            echo "Health check attempt $i/6 failed, waiting..."
            sleep 10
          done

          echo "❌ Rollback health check failed"
          docker logs littleshop --tail 50
          docker logs telebot-service --tail 30
          exit 1
          ENDSSH

      - name: Cleanup
        if: always()
        run: |
          rm -f ~/.ssh/deploy_key