name: Deploy CD Server

on:
  push:
    # paths:
    #   - 'workspace/sprint_1_2/CODEBASE/deps/implementation/CD_server/**'

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Prepare VM directories
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ vars.LIGHTSAIL_DEPLOY_HOST }}
          username: ${{ secrets.LIGHTSAIL_USERNAME }}
          key: ${{ secrets.LIGHTSAIL_SSH_KEY }}
          port: ${{ vars.LIGHTSAIL_PORT }}
          script: |
            set -euo pipefail
            DEPLOY_DIR="/opt/cd-server"
            sudo mkdir -p "$DEPLOY_DIR"
            sudo chown $USER:$USER "$DEPLOY_DIR"
            sudo chmod 755 "$DEPLOY_DIR"
            echo "[prepare] $DEPLOY_DIR ready"

      - name: Copy CD server code to VM
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ vars.LIGHTSAIL_DEPLOY_HOST }}
          username: ${{ secrets.LIGHTSAIL_USERNAME }}
          key: ${{ secrets.LIGHTSAIL_SSH_KEY }}
          port: ${{ vars.LIGHTSAIL_PORT }}
          source: "workspace/sprint_1_2/CODEBASE/deps/implementation/CD_server/"
          target: "/opt/cd-server/"
          strip_components: 6

      - name: Deploy to Lightsail VM
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ vars.LIGHTSAIL_DEPLOY_HOST }}
          username: ${{ secrets.LIGHTSAIL_USERNAME }}
          key: ${{ secrets.LIGHTSAIL_SSH_KEY }}
          port: ${{ vars.LIGHTSAIL_PORT }}
          script: |
            set -euo pipefail

            DEPLOY_DIR="/opt/cd-server"
            SERVICE_NAME="cd-server"

            echo "[deploy] Creating deploy user if missing"
            if ! id -u deploy &>/dev/null; then
              sudo useradd -m -s /bin/bash deploy
            fi

            echo "[deploy] Adding deploy user to docker group"
            sudo usermod -aG docker deploy || true

            echo "[deploy] Ensuring $DEPLOY_DIR ownership"
            sudo chown -R deploy:docker "$DEPLOY_DIR"

            echo "[deploy] Creating .env file"
            sudo -u deploy bash -c "echo 'WEBHOOK_SECRET=${{ secrets.WEBHOOK_SECRET }}' >> $DEPLOY_DIR/.env"
            sudo -u deploy bash -c "echo 'AWS_ECR_REGION=${{ secrets.AWS_ECR_REGION }}' >> $DEPLOY_DIR/.env"
            sudo chmod 600 "$DEPLOY_DIR/.env"

            echo "[deploy] Building CD server Docker image"
            sudo -u deploy docker compose -f "$DEPLOY_DIR/docker-compose.yml" build --no-cache

            echo "[deploy] Starting CD server container"
            sudo -u deploy docker compose -f "$DEPLOY_DIR/docker-compose.yml" up -d --force-recreate

            echo "[deploy] Waiting for service to be healthy"
            for i in {1..30}; do
              if curl -s http://127.0.0.1:3333/health > /dev/null; then
                echo "[deploy] Service is healthy"
                break
              fi
              if [ "$i" -eq 30 ]; then
                echo "[deploy] Service failed health check"
                sudo docker logs cd-server --no-pager || true
                exit 1
              fi
              sleep 2
            done

            echo "[deploy] Deployment completed successfully"