name: Deploy Frontend to GitHub (for Vercel)

on:
  push:
    branches:
      - main
      - master
    paths:
      # Trigger only when frontend files change
      - 'frontend/**'
  workflow_dispatch:

jobs:
  deploy-frontend:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "github-actions[bot]"

      - name: Extract and Push Frontend
        env:
          # Set your frontend repository here (format: username/repo)
          FRONTEND_REPO: ${{ secrets.FRONTEND_REPO }}
          # GitHub PAT with repo permissions for cross-repo push
          DEPLOY_TOKEN: ${{ secrets.FRONTEND_DEPLOY_TOKEN }}
        run: |
          # Default repo if secret not set
          REPO=${FRONTEND_REPO:-"Nivakaran-S/modelx-frontend"}
          
          # Create a new directory for frontend-only repo
          mkdir -p /tmp/frontend-deploy
          
          # Copy frontend contents (not the folder itself)
          cp -r frontend/* /tmp/frontend-deploy/
          
          # Copy root configs needed for Next.js if they exist
          [ -f "frontend/.gitignore" ] && cp frontend/.gitignore /tmp/frontend-deploy/ || true
          
          # Create .env.production with API URL placeholder
          echo "NEXT_PUBLIC_API_URL=\${NEXT_PUBLIC_API_URL:-https://nivakaran-modelx.hf.space}" > /tmp/frontend-deploy/.env.production
          
          cd /tmp/frontend-deploy
          
          # Initialize git repo
          git init
          git add .
          git commit -m "Deploy frontend from main repo - $(date +'%Y-%m-%d %H:%M:%S')"
          
          # Push to frontend repo
          git remote add origin https://x-access-token:${DEPLOY_TOKEN}@github.com/${REPO}.git
          git branch -M main
          git push origin main --force

      - name: Verify Deployment
        if: success()
        run: echo "✅ Successfully pushed frontend to GitHub repository for Vercel deployment!"

      - name: Deployment Failed
        if: failure()
        run: echo "❌ Failed to push frontend. Check if FRONTEND_DEPLOY_TOKEN and FRONTEND_REPO secrets are configured."