cd.yml

name: CD - Deploy to Cloud

on:
  push:
    branches: [main]
  workflow_dispatch:
    inputs:
      environment:
        description: 'Deployment environment'
        required: true
        default: 'staging'
        type: choice
        options:
          - staging
          - production

env:
  NODE_VERSION: '20.x'

jobs:
  # Build job - reusable build step
  build:
    name: Build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: |
            backend/package-lock.json
            frontend/package-lock.json

      # Backend build
      - name: Install backend dependencies
        run: npm ci
        working-directory: ./backend

      - name: Build backend
        run: npm run build
        working-directory: ./backend

      # Frontend build
      - name: Install frontend dependencies
        run: npm ci
        working-directory: ./frontend

      - name: Build frontend for production
        run: npm run build -- --configuration=production
        working-directory: ./frontend

      # Upload artifacts
      - name: Upload backend artifacts
        uses: actions/upload-artifact@v4
        with:
          name: backend-dist
          path: backend/dist
          retention-days: 1

      - name: Upload frontend artifacts
        uses: actions/upload-artifact@v4
        with:
          name: frontend-dist
          path: frontend/dist
          retention-days: 1

  # Deploy Backend to Render
  deploy-backend:
    name: Deploy Backend to Render
    runs-on: ubuntu-latest
    needs: build
    if: github.event_name == 'push' || github.event.inputs.environment != ''

    steps:
      - name: Trigger Render Deploy
        run: |
          if [ -n "${{ secrets.RENDER_DEPLOY_HOOK_URL }}" ]; then
            echo "🚀 Triggering Render deployment..."
            curl -X POST "${{ secrets.RENDER_DEPLOY_HOOK_URL }}"
            echo "✅ Render deployment triggered"
          else
            echo "⚠️ RENDER_DEPLOY_HOOK_URL secret not set"
            echo "To enable auto-deploy:"
            echo "1. Go to Render Dashboard → Your Service → Settings → Deploy Hook"
            echo "2. Copy the deploy hook URL"
            echo "3. Add it as RENDER_DEPLOY_HOOK_URL secret in GitHub repo settings"
          fi

  # Deploy Frontend to Vercel
  deploy-frontend:
    name: Deploy Frontend to Vercel
    runs-on: ubuntu-latest
    needs: build
    if: github.event_name == 'push' || github.event.inputs.environment != ''

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}

      - name: Install Vercel CLI
        run: npm install -g vercel@latest

      - name: Pull Vercel Environment Information
        run: |
          if [ -n "${{ secrets.VERCEL_TOKEN }}" ]; then
            cd frontend
            vercel pull --yes --environment=production --token=${{ secrets.VERCEL_TOKEN }}
          else
            echo "⚠️ VERCEL_TOKEN not set - skipping Vercel pull"
          fi

      - name: Build Project Artifacts
        run: |
          if [ -n "${{ secrets.VERCEL_TOKEN }}" ]; then
            cd frontend
            vercel build --prod --token=${{ secrets.VERCEL_TOKEN }}
          else
            echo "⚠️ VERCEL_TOKEN not set - skipping Vercel build"
          fi

      - name: Deploy to Vercel
        run: |
          if [ -n "${{ secrets.VERCEL_TOKEN }}" ]; then
            cd frontend
            vercel deploy --prebuilt --prod --token=${{ secrets.VERCEL_TOKEN }}
            echo "✅ Vercel deployment complete"
          else
            echo "⚠️ VERCEL_TOKEN secret not set"
            echo ""
            echo "To enable auto-deploy to Vercel:"
            echo "1. Go to https://vercel.com/account/tokens"
            echo "2. Create a new token"
            echo "3. Add it as VERCEL_TOKEN secret in GitHub repo settings"
            echo ""
            echo "Also add these secrets:"
            echo "- VERCEL_ORG_ID: Your Vercel team/org ID"
            echo "- VERCEL_PROJECT_ID: Your Vercel project ID"
            echo ""
            echo "You can find these IDs by running 'vercel link' locally"
          fi
        env:
          VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
          VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}

  # Deployment summary
  deploy-summary:
    name: Deployment Summary
    runs-on: ubuntu-latest
    needs: [deploy-backend, deploy-frontend]
    if: always()

    steps:
      - name: Summary
        run: |
          echo "## Deployment Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "| Service | Status |" >> $GITHUB_STEP_SUMMARY
          echo "|---------|--------|" >> $GITHUB_STEP_SUMMARY
          echo "| Backend (Render) | ${{ needs.deploy-backend.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Frontend (Vercel) | ${{ needs.deploy-frontend.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### URLs" >> $GITHUB_STEP_SUMMARY
          echo "- Backend API: https://dev-onboarding-api.onrender.com" >> $GITHUB_STEP_SUMMARY
          echo "- Frontend App: https://dev-onboarding.vercel.app" >> $GITHUB_STEP_SUMMARY