#!/usr/bin/env python3
"""
Integration test script for CAE Mesh Generator
"""
import requests
import json
import time
import os
from pathlib import Path

class IntegrationTester:
    def __init__(self, base_url='http://localhost:5000'):
        self.base_url = base_url
        self.session = requests.Session()
    
    def test_frontend_loading(self):
        """Test if frontend loads correctly"""
        print("Testing frontend loading...")
        try:
            response = self.session.get(self.base_url)
            if response.status_code == 200 and 'CAE网格生成助手' in response.text:
                print("✓ Frontend loads successfully")
                return True
            else:
                print(f"✗ Frontend loading failed: {response.status_code}")
                return False
        except Exception as e:
            print(f"✗ Frontend loading error: {e}")
            return False
    
    def test_static_files(self):
        """Test if static files are served correctly"""
        print("Testing static files...")
        static_files = [
            '/static/css/main.css',
            '/static/js/main.js'
        ]
        
        all_passed = True
        for file_path in static_files:
            try:
                response = self.session.get(f"{self.base_url}{file_path}")
                if response.status_code == 200:
                    print(f"✓ {file_path} loads successfully")
                else:
                    print(f"✗ {file_path} failed: {response.status_code}")
                    all_passed = False
            except Exception as e:
                print(f"✗ {file_path} error: {e}")
                all_passed = False
        
        return all_passed
    
    def test_api_endpoints(self):
        """Test API endpoints"""
        print("Testing API endpoints...")
        
        # Test status endpoint
        try:
            response = self.session.get(f"{self.base_url}/api/mesh/status")
            if response.status_code == 200:
                print("✓ Status API endpoint working")
            else:
                print(f"✗ Status API failed: {response.status_code}")
                return False
        except Exception as e:
            print(f"✗ Status API error: {e}")
            return False
        
        # Test upload endpoint (without file)
        try:
            response = self.session.post(f"{self.base_url}/api/upload")
            # Should return 400 for missing file
            if response.status_code == 400:
                print("✓ Upload API endpoint working (correctly rejects empty request)")
            else:
                print(f"✗ Upload API unexpected response: {response.status_code}")
        except Exception as e:
            print(f"✗ Upload API error: {e}")
            return False
        
        return True
    
    def test_file_upload_simulation(self):
        """Simulate file upload test"""
        print("Testing file upload simulation...")
        
        # Create a dummy STEP file for testing
        test_file_content = """ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('Test STEP file for CAE Mesh Generator'),'2;1');
FILE_NAME('test_blade.step','2025-01-01T00:00:00',('Test'),('Test'),'','','');
FILE_SCHEMA(('AUTOMOTIVE_DESIGN'));
ENDSEC;
DATA;
#1 = CARTESIAN_POINT('Origin',(0.0,0.0,0.0));
ENDSEC;
END-ISO-10303-21;"""
        
        test_file_path = Path('temp/test_blade.step')
        test_file_path.parent.mkdir(exist_ok=True)
        
        try:
            with open(test_file_path, 'w') as f:
                f.write(test_file_content)
            
            with open(test_file_path, 'rb') as f:
                files = {'file': ('test_blade.step', f, 'application/step')}
                response = self.session.post(f"{self.base_url}/api/upload", files=files)
                
                if response.status_code == 200:
                    print("✓ File upload simulation successful")
                    return True
                else:
                    print(f"✗ File upload failed: {response.status_code}")
                    if response.headers.get('content-type', '').startswith('application/json'):
                        print(f"Error details: {response.json()}")
                    return False
        except Exception as e:
            print(f"✗ File upload simulation error: {e}")
            return False
        finally:
            # Clean up test file
            if test_file_path.exists():
                test_file_path.unlink()
    
    def run_all_tests(self):
        """Run all integration tests"""
        print("=" * 60)
        print("CAE Mesh Generator - Integration Tests")
        print("=" * 60)
        
        tests = [
            ("Frontend Loading", self.test_frontend_loading),
            ("Static Files", self.test_static_files),
            ("API Endpoints", self.test_api_endpoints),
            ("File Upload Simulation", self.test_file_upload_simulation)
        ]
        
        results = []
        for test_name, test_func in tests:
            print(f"\n--- {test_name} ---")
            result = test_func()
            results.append((test_name, result))
        
        print("\n" + "=" * 60)
        print("Test Results Summary:")
        print("=" * 60)
        
        passed = 0
        for test_name, result in results:
            status = "PASS" if result else "FAIL"
            print(f"{test_name:<25} {status}")
            if result:
                passed += 1
        
        print(f"\nTotal: {passed}/{len(results)} tests passed")
        
        if passed == len(results):
            print("🎉 All integration tests passed!")
            return True
        else:
            print("❌ Some tests failed. Please check the application setup.")
            return False

def main():
    """Main test runner"""
    print("Starting integration tests...")
    print("Make sure the application is running on http://localhost:5000")
    
    # Wait a moment for user to start the application
    input("Press Enter when the application is running...")
    
    tester = IntegrationTester()
    success = tester.run_all_tests()
    
    if success:
        print("\n✅ Integration testing completed successfully!")
    else:
        print("\n❌ Integration testing failed!")
        return 1
    
    return 0

if __name__ == '__main__':
    exit(main())