"""
测试动态路由发现功能

执行示例: `pytest tests/test_discover.py` 或 `pytest tests/`
"""

import pytest
from fastapi import APIRouter
from app.core.discover import get_dynamic_router


def test_get_dynamic_router_basic():
    """
    测试基本的动态路由发现功能
    """
    # 调用函数获取路由
    router = get_dynamic_router()
    
    # 验证返回值是 APIRouter 实例
    assert isinstance(router, APIRouter)
    
    # 验证路由对象的基本属性
    assert hasattr(router, 'routes')
    assert isinstance(router.routes, list)


def test_get_dynamic_router_error_handling():
    """
    测试错误处理功能
    """
    # 即使发生错误，函数也应该返回一个空的 APIRouter 实例
    router = get_dynamic_router()
    assert isinstance(router, APIRouter)


def test_route_count():
    """
    测试路由数量并打印详细信息
    """
    router = get_dynamic_router()
    # 打印路由信息，方便调试
    print(f"\n=== 路由信息 ===")
    print(f"总路由数: {len(router.routes)}")
    
    # 遍历所有路由并打印
    for i, route in enumerate(router.routes):
        if hasattr(route, 'path'):
            print(f"路由 {i+1}: {route.path}")
        elif hasattr(route, 'routes'):
            print(f"子路由组: {len(route.routes)} 个路由")
            for j, sub_route in enumerate(route.routes):
                if hasattr(sub_route, 'path'):
                    print(f"  - 子路由 {j+1}: {sub_route.path}")
    print("================\n")


def test_module_scanning():
    """
    测试模块扫描功能
    """
    router = get_dynamic_router()
    
    # 验证路由是否包含预期的模块前缀
    expected_prefixes = [
        '/ai',       # module_ai
        '/example',  # module_example
        '/generator', # module_generator
        '/task',     # module_task
        '/commerce'  # module_commerce
    ]
    
    print(f"\n=== 验证模块前缀 ===")
    found_prefixes = []
    
    for route in router.routes:
        if hasattr(route, 'prefix'):
            prefix = route.prefix
            found_prefixes.append(prefix)
            print(f"发现模块前缀: {prefix}")
            
            # 检查是否在预期列表中
            if prefix in expected_prefixes:
                print(f"  ✓ 预期前缀: {prefix}")
            else:
                print(f"  ⚠ 未预期的前缀: {prefix}")
    
    print(f"\n预期前缀: {expected_prefixes}")
    print(f"发现前缀: {found_prefixes}")
    print("================\n")


# 运行所有测试
if __name__ == "__main__":
    pytest.main(["-v", "tests/test_discover.py"])