name: Deploy Chatbot Backend

on:
  push:
    branches:
      - main

jobs:
  deploy:
    runs-on: ubuntu-latest

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

      - name: Set up JDK 25
        uses: actions/setup-java@v4.7.0
        with:
          java-version: '25'
          distribution: 'temurin'
          cache: 'maven'

      - 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: Build JAR
        run: |
          chmod +x mvnw
          ./mvnw clean package -DskipTests

      - name: Deploy JAR to Server
        run: |
          JAR_NAME="chatbot-bridge-service-0.0.1-SNAPSHOT.jar"
          LOCAL_JAR_PATH="target/$JAR_NAME"
          REMOTE_SERVER="${{ secrets.VPS_USER }}@${{ secrets.VPS_IP }}"
          REMOTE_JAR_DIR="/home/ubuntu"
          
          # Upload jar
          rsync -avz -e "ssh" $LOCAL_JAR_PATH $REMOTE_SERVER:$REMOTE_JAR_DIR/$JAR_NAME

          # Replace and restart safely
          ssh $REMOTE_SERVER << EOF
            mv $REMOTE_JAR_DIR/$JAR_NAME $REMOTE_JAR_DIR/chatbot.jar && \
            sudo systemctl restart chatbot.service
          EOF