name: Bayan CI/CD

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  validate:
    name: Validate Code
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Check Python syntax (all .py files)
        run: |
          echo "Checking Python syntax..."
          find . -name "*.py" -not -path "./.git/*" -not -path "./archive/*" | while read f; do
            python -m py_compile "$f" 2>&1 && echo "  ✅ $f" || { echo "  ❌ $f"; exit 1; }
          done
          echo "✅ All Python files have valid syntax"

      - name: Verify critical files exist
        run: |
          for f in src/app.py src/model_loader.py src/hf_inference.py src/index.html \
                   src/nlp/__init__.py src/nlp/spelling/araspell_service.py \
                   src/nlp/grammar/grammar_service.py src/nlp/punctuation/punctuation_service.py \
                   Dockerfile Procfile requirements.txt; do
            test -f "$f" && echo "  ✅ $f" || { echo "  ❌ MISSING: $f"; exit 1; }
          done
          echo "✅ All critical files present"

      - name: Verify API routes defined in app.py
        run: |
          for route in "/api/health" "/api/analyze" "/api/summarize" "/api/spelling" \
                       "/api/grammar" "/api/punctuation" "/api/quran"; do
            grep -q "$route" src/app.py && echo "  ✅ $route" || { echo "  ❌ MISSING ROUTE: $route"; exit 1; }
          done
          echo "✅ All API routes defined"

      - name: Validate Supabase meta tags in index.html
        run: |
          grep -q 'supabase-url' src/index.html && echo "  ✅ supabase-url meta tag" || exit 1
          grep -q 'supabase-anon-key' src/index.html && echo "  ✅ supabase-anon-key meta tag" || exit 1
          echo "✅ Supabase tags present"

      - name: Validate Dockerfile
        run: |
          grep -q 'EXPOSE' Dockerfile && echo "  ✅ EXPOSE directive" || exit 1
          grep -q 'gunicorn\|CMD' Dockerfile && echo "  ✅ Startup command" || exit 1
          echo "✅ Dockerfile valid"

  health-check:
    name: Post-Deploy Health Check
    needs: validate
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    runs-on: ubuntu-latest
    steps:
      - name: Wait for HuggingFace Spaces to deploy
        run: sleep 120

      - name: Check backend health
        run: |
          HEALTH_URL="${{ secrets.BACKEND_URL }}/api/health"
          if [ -z "${{ secrets.BACKEND_URL }}" ]; then
            HEALTH_URL="https://bayan10-bayan-api.hf.space/api/health"
          fi
          echo "Checking: $HEALTH_URL"
          response=$(curl -s -w "\n%{http_code}" "$HEALTH_URL")
          http_code=$(echo "$response" | tail -n1)
          body=$(echo "$response" | head -n -1)
          echo "Status: $http_code"
          echo "Body: $body"
          if [ "$http_code" = "200" ] || [ "$http_code" = "503" ]; then
            echo "✅ Backend is responding"
          else
            echo "❌ Backend health check failed"
            exit 1
          fi