name: Deploy Python Chatbot Backend

on:
  push:
    branches:
      - main

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4.2.2

      - name: Setup SSH
        uses: webfactory/ssh-agent@v0.9.1
        with:
          ssh-private-key: ${{ secrets.VPS_SSH_KEY }}

      - name: Add server to known hosts
        run: |
          mkdir -p ~/.ssh
          ssh-keyscan -H ${{ secrets.VPS_IP }} >> ~/.ssh/known_hosts

      - name: Sync app files to server
        run: |
          REMOTE_SERVER="${{ secrets.VPS_USER }}@${{ secrets.VPS_IP }}"
          rsync -avz --exclude='.git' --exclude='.env' --exclude='__pycache__' \
            -e "ssh" ./ $REMOTE_SERVER:/home/ubuntu/app/

      - name: Install dependencies and restart service
        run: |
          REMOTE_SERVER="${{ secrets.VPS_USER }}@${{ secrets.VPS_IP }}"
          ssh $REMOTE_SERVER << 'EOF'
            /home/ubuntu/venv/bin/pip install -q -r /home/ubuntu/app/requirements.txt && \
            sudo systemctl restart chatbot-python.service
          EOF