#!/usr/bin/env python3
"""
Test script for the Backend Code Generation API
===============================================

Simple test script to verify the API is working correctly.
"""

import requests
import json
import time
import os

# API base URL
BASE_URL = "http://localhost:8000"

def test_health():
    """Test the health endpoint"""
    print("Testing health endpoint...")
    response = requests.get(f"{BASE_URL}/health")
    print(f"Status: {response.status_code}")
    print(f"Response: {response.json()}")
    return response.status_code == 200

def test_generate_code():
    """Test code generation"""
    print("\nTesting code generation...")
    
    # Test request
    request_data = {
        "description": "Simple REST API for task management",
        "framework": "fastapi",
        "language": "python",
        "requirements": [
            "User authentication",
            "Task CRUD operations",
            "Task status tracking"
        ],
        "project_name": "task-manager-api"
    }
    
    # Submit generation request
    response = requests.post(f"{BASE_URL}/api/v1/generate", json=request_data)
    print(f"Generation request status: {response.status_code}")
    
    if response.status_code == 200:
        result = response.json()
        task_id = result["task_id"]
        print(f"Task ID: {task_id}")
        
        # Poll for completion
        print("Polling for completion...")
        for i in range(30):  # Wait up to 5 minutes
            status_response = requests.get(f"{BASE_URL}/api/v1/status/{task_id}")
            if status_response.status_code == 200:
                status = status_response.json()
                print(f"Status: {status['status']} - {status['message']} ({status['progress']}%)")
                
                if status["status"] == "completed":
                    print("✅ Generation completed!")
                    if status.get("download_url"):
                        print(f"Download URL: {status['download_url']}")
                    return True
                elif status["status"] == "failed":
                    print(f"❌ Generation failed: {status.get('error', 'Unknown error')}")
                    return False
            else:
                print(f"Failed to get status: {status_response.status_code}")
                return False
            
            time.sleep(10)  # Wait 10 seconds between polls
        
        print("⏰ Timeout waiting for completion")
        return False
    else:
        print(f"❌ Generation request failed: {response.text}")
        return False

def test_frameworks():
    """Test frameworks endpoint"""
    print("\nTesting frameworks endpoint...")
    response = requests.get(f"{BASE_URL}/api/v1/frameworks")
    print(f"Status: {response.status_code}")
    if response.status_code == 200:
        frameworks = response.json()
        print(f"Supported frameworks: {len(frameworks['frameworks'])}")
        for fw in frameworks['frameworks']:
            print(f"  - {fw['name']} ({fw['language']})")
        return True
    return False

def test_examples():
    """Test examples endpoint"""
    print("\nTesting examples endpoint...")
    response = requests.get(f"{BASE_URL}/api/v1/examples")
    print(f"Status: {response.status_code}")
    if response.status_code == 200:
        examples = response.json()
        print(f"Available examples: {len(examples['examples'])}")
        for ex in examples['examples']:
            print(f"  - {ex['name']}")
        return True
    return False

def main():
    """Run all tests"""
    print("🚀 Testing Backend Code Generation API")
    print("=" * 50)
    
    # Check if API is running
    try:
        response = requests.get(f"{BASE_URL}/", timeout=5)
        if response.status_code != 200:
            print("❌ API is not running. Please start it with: python api_service.py")
            return
    except requests.exceptions.RequestException:
        print("❌ Cannot connect to API. Please start it with: python api_service.py")
        return
    
    print("✅ API is running")
    
    # Run tests
    tests = [
        ("Health Check", test_health),
        ("Frameworks List", test_frameworks),
        ("Examples List", test_examples),
        ("Code Generation", test_generate_code),
    ]
    
    results = []
    for test_name, test_func in tests:
        print(f"\n{'='*20} {test_name} {'='*20}")
        try:
            result = test_func()
            results.append((test_name, result))
        except Exception as e:
            print(f"❌ Test failed with error: {e}")
            results.append((test_name, False))
    
    # Summary
    print(f"\n{'='*50}")
    print("📊 Test Results Summary:")
    print("=" * 50)
    
    passed = 0
    for test_name, result in results:
        status = "✅ PASS" if result else "❌ FAIL"
        print(f"{test_name}: {status}")
        if result:
            passed += 1
    
    print(f"\nPassed: {passed}/{len(results)} tests")
    
    if passed == len(results):
        print("🎉 All tests passed!")
    else:
        print("⚠️  Some tests failed. Check the output above for details.")

if __name__ == "__main__":
    main()