#!/usr/bin/env python3
"""
主图完整测试 - 覆盖各个分支
"""

import asyncio

from backend.app.main_graph.state import MainGraphState, CurrentAction
from backend.app.main_graph.main_graph_builder import build_react_main_graph
from backend.app.model_services.chat_services import get_all_chat_services
from backend.app.main_graph.tools.graph_tools import AVAILABLE_TOOLS
from backend.app.main_graph.utils.rag_initializer import init_rag_tool


# ========== 测试用例配置 ==========
TEST_CASES = [
    # 测试1: 简单闲聊 - 应该走 fast_chitchat
    {
        "name": "闲聊测试",
        "query": "你好！",
        "description": "测试快速闲聊分支"
    },
    # 测试2: 知识查询 - 应该走 fast_rag，然后可能升级到 react
    {
        "name": "知识查询测试",
        "query": "吕布的事迹？",
        "description": "测试快速 RAG 分支"
    },
    # 测试3: 需要推理的复杂问题 - 应该直接到 React 循环
    {
        "name": "复杂推理测试",
        "query": "请帮我分析：如果我有10万元，想要在一年内获得15%的收益，有哪些低风险的投资方案？",
        "description": "测试 React 循环推理分支"
    },
    # 测试4: 需要工具调用的问题
    {
        "name": "联网工具调用测试",
        "query": "搜索一下今天的天气怎么样",
        "description": "测试工具调用分支"
    },
    # 测试5: 带记忆的对话
    {
        "name": "记忆测试",
        "query": "你刚才回答了我什么问题？",
        "description": "测试记忆检索分支",
        "thread_id": "test_memory_thread"
    }
]


async def setup_test_environment():
    """设置测试环境"""
    print("=" * 60)
    print("设置测试环境...")
    print("=" * 60)

    # 获取 LLM 服务
    chat_services = get_all_chat_services()
    if not chat_services:
        raise RuntimeError("没有可用的 LLM 服务")

    print(f"✓ 可用模型: {list(chat_services.keys())}")

    # 初始化 RAG 工具
    rag_tool = await init_rag_tool()
    tools = AVAILABLE_TOOLS.copy()
    if rag_tool:
        tools.append(rag_tool)
        print(f"✓ RAG 工具初始化成功")

    # 构建图（使用新的 API: chat_services 而不是 llm）
    graph = build_react_main_graph(
        chat_services=chat_services,
        tools=tools,
        use_hybrid_router=True
    ).compile()

    print(f"✓ 图构建完成")
    print()

    return graph, rag_tool


def create_test_state(query: str, thread_id: str = None) -> dict:
    """创建测试状态"""
    return {
        "user_query": query,
        "messages": [{"role": "user", "content": query}],
        "user_id": "test_user",
        "current_action": CurrentAction.NONE
    }


async def run_single_test(graph, rag_tool, test_case: dict) -> dict:
    """运行单个测试"""
    name = test_case["name"]
    query = test_case["query"]
    description = test_case["description"]
    thread_id = test_case.get("thread_id", "test_thread")
    
    print(f"\n{'=' * 60}")
    print(f"测试: {name}")
    print(f"描述: {description}")
    print(f"查询: {query}")
    print(f"{'=' * 60}")
    
    try:
        # 创建初始状态
        input_state = create_test_state(query, thread_id)
        
        # 配置（注入 RAG 工具）
        config = {
            "configurable": {
                "thread_id": thread_id,
                "rag_tool": rag_tool
            }
        }
        
        # 执行图
        print("开始执行图...")
        result = await graph.ainvoke(input_state, config=config)
        
        # 检查结果
        success = result.get("success", False)
        final_result = result.get("final_result", "")
        
        print(f"\n结果:")
        print(f"  成功: {'✓' if success else '✗'}")
        print(f"  最终回答: {final_result[:200]}{'...' if len(final_result) > 200 else ''}")
        
        # 调试信息
        if "debug_info" in result:
            debug_info = result["debug_info"]
            print(f"  调试信息:")
            if "fast_path_failed" in debug_info:
                print(f"    - 快速路径失败: {debug_info['fast_path_failed']}")
            if "fast_path_fail_reason" in debug_info:
                print(f"    - 失败原因: {debug_info['fast_path_fail_reason']}")
            if "hybrid_decision" in debug_info:
                decision = debug_info["hybrid_decision"]
                print(f"    - 路由决策: {decision.path if hasattr(decision, 'path') else 'unknown'}")
        
        return {
            "name": name,
            "success": success,
            "result": result
        }
        
    except Exception as e:
        print(f"\n✗ 测试失败: {e}")
        import traceback
        print(f"堆栈: {traceback.format_exc()}")
        return {
            "name": name,
            "success": False,
            "error": str(e)
        }


async def main():
    """主函数"""
    print("\n" + "=" * 60)
    print("主图完整测试套件")
    print("=" * 60)
    
    # 设置环境
    graph, rag_tool = await setup_test_environment()
    
    # 运行所有测试
    results = []
    for test_case in TEST_CASES:
        result = await run_single_test(graph, rag_tool, test_case)
        results.append(result)
        
        # 稍微间隔一下
        await asyncio.sleep(1)
    
    # 总结
    print("\n" + "=" * 60)
    print("测试总结")
    print("=" * 60)
    
    total = len(results)
    passed = sum(1 for r in results if r["success"])
    failed = total - passed
    
    print(f"\n总测试数: {total}")
    print(f"通过: {passed}")
    print(f"失败: {failed}")
    
    print("\n详细结果:")
    for result in results:
        status = "✓ 通过" if result["success"] else "✗ 失败"
        print(f"  {result['name']}: {status}")
    
    print("\n" + "=" * 60)
    if failed == 0:
        print("🎉 所有测试通过！")
    else:
        print(f"⚠️  有 {failed} 个测试失败")
    print("=" * 60)


if __name__ == "__main__":
    try:
        asyncio.run(main())
    except KeyboardInterrupt:
        print("\n\n测试被用户中断")
    except Exception as e:
        print(f"\n\n测试运行失败: {e}")
        import traceback
        print(traceback.format_exc())