name: Build and Deploy to GitHub Pages

on:
  push:
    branches: [ main, master ]
  # Allow manual trigger from Actions tab
  workflow_dispatch:

# Sets permissions for GitHub Pages deployment
permissions:
  contents: read
  pages: write
  id-token: write

# Allow only one concurrent deployment
concurrency:
  group: "pages"
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'
      
      - name: Install dependencies
        run: npm ci
      
      - name: Run tests
        run: npm run test:all
      
      - name: Build project
        run: |
          echo "Running full build..."
          npm run build
          echo "Build complete!"
      
      - name: Verify build output
        run: |
          test -f dist/index.html || (echo "❌ dist/index.html missing!" && exit 1)
          test -f dist/js/bundles/transforms-bundle.js || (echo "❌ dist/js/bundles/transforms-bundle.js missing!" && exit 1)
          test -f dist/js/data/emojiData.js || (echo "❌ dist/js/data/emojiData.js missing!" && exit 1)
          echo "✅ All critical build files present"
      
      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: 'dist/'
          retention-days: 7

  deploy:
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    needs: build
    
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4