#!/usr/bin/env python3
"""
本地直接测试回测 - 直接在容器内运行，找到崩溃原因

策略来自关羽将军：single_stock_stop_loss_final_correct.py
参数：510300.SSE，2021-01-01 ~ 2026-03-01，stop_loss_pct=0.15
"""

# 策略代码直接嵌入
strategy_code = '''"""
单票固定比例止损策略 - vnpy CTA回测

策略逻辑：
- 标的：沪深300ETF (510300.SSE)
- 简单均线趋势跟踪：金叉开多，死叉平多
- 开多后，如果价格从开仓价下跌超过X%，立即止损平仓
- 测试不同止损比例对策略绩效的影响

回测目标：验证不同止损比例对胜率、盈亏比、最大回撤的影响
"""

from vnpy_ctastrategy import (
    CtaTemplate,
    StopOrder,
    TickData,
    BarData,
    TradeData,
    OrderData,
    BarGenerator,
    ArrayManager,
)
from vnpy.trader.constant import Direction, Offset


class SingleStockStopLossStrategy(CtaTemplate):
    """单票固定比例止损策略 - 均线趋势跟踪+固定比例止损"""
    
    author = "关羽 (云长)"
    
    # 策略参数
    fast_window = 5    # 短期均线窗口
    slow_window = 20   # 长期均线窗口
    stop_loss_pct = 0.15  # 止损比例，亏损超过这个比例止损
    
    # 参数列表
    parameters = ["fast_window", "slow_window", "stop_loss_pct"]
    
    # 变量列表
    variables = ["fast_ma", "slow_ma", "cost_price", "in_position"]
    
    def __init__(self, cta_engine, strategy_name, vt_symbol, setting):
        """初始化"""
        super().__init__(cta_engine, strategy_name, vt_symbol, setting)
        
        self.bg = BarGenerator(self.on_bar)
        self.am = ArrayManager(max(self.slow_window + 10, 100))
        
        # 均线数值
        self.fast_ma = 0.0
        self.slow_ma = 0.0
        
        # 开仓成本
        self.cost_price = 0.0
        
        # 是否持仓
        self.in_position = False
        
    def on_init(self):
        """初始化策略"""
        self.write_log(f"策略初始化，fast={self.fast_window}, slow={self.slow_window}, stop_loss={self.stop_loss_pct:.1%}")
        self.put_event()
        
    def on_start(self):
        """启动策略"""
        self.put_event()
        
    def on_stop(self):
        """停止策略"""
        self.put_event()
        
    def on_bar(self, bar):
        """K线更新"""
        self.am.update_bar(bar)
        
        if not self.am.inited:
            return
        
        # 计算均线
        self.fast_ma = self.am.sma(self.fast_window)
        self.slow_ma = self.am.sma(self.slow_window)
        
        # 检查止损（只有持仓时才检查）
        have_signal = True
        if self.in_position and self.cost_price > 0:
            current_drawdown = (bar.close_price - self.cost_price) / self.cost_price
            
            if current_drawdown <= -self.stop_loss_pct:
                # 触发止损，全部平仓
                if self.pos > 0:
                    self.sell(bar.close_price, self.pos)
                    self.in_position = False
                    self.write_log(f"🔴 触发止损：成本{self.cost_price:.2f}，当前{bar.close_price:.2f}，回撤{current_drawdown:.1%}，止损卖出")
                have_signal = False
        
        # 如果没有触发止损，继续处理信号
        if have_signal:
            # 均线金叉死叉信号
            if not self.in_position:
                # 金叉：短期上穿长期，开多
                if self.fast_ma > self.slow_ma:
                    self.buy(bar.close_price, 1)  # 1手
                    self.cost_price = bar.close_price
                    self.in_position = True
                    self.write_log(f"🟢 金叉开多：价格{bar.close_price:.2f}，均线fast{self.fast_ma:.2f} slow{self.slow_ma:.2f}")
            else:
                # 死叉：短期下穿长期，平多
                if self.fast_ma < self.slow_ma:
                    if self.pos > 0:
                        self.sell(bar.close_price, self.pos)
                        self.in_position = False
                        self.write_log(f"🔵 死叉平仓：价格{bar.close_price:.2f}，均线fast{self.fast_ma:.2f} slow{self.slow_ma:.2f}")
        
        self.put_event()
        
    def on_trade(self, trade):
        """交易成交回调"""
        self.put_event()
        
    def on_order(self, order):
        """订单回调"""
        self.put_event()
        
    def on_stop_order(self, stop_order):
        """停止单回调"""
        self.put_event()


if __name__ == "__main__":
    # 测试
    print("=== 单票固定比例止损策略 测试 ===")
    print(f"默认参数：fast=5, slow=20, stop_loss=15%")
    print("策略初始化完成，等待回测")
'''

# 导入我们的RPC函数，直接调用测试
import sys
import types

# ============================================
# 🔥 复制vnpy.app兼容性模块
# ============================================
print("🔧 [TEST] 加载vnpy.app兼容性模块...")

# 创建顶级模块
vnpy_app_module = types.ModuleType('vnpy.app')
sys.modules['vnpy.app'] = vnpy_app_module

# 创建子模块
submodules = ['cta_strategy', 'cta_backtester', 'data_manager']
for name in submodules:
    full_name = f'vnpy.app.{name}'
    submodule = types.ModuleType(full_name)
    sys.modules[full_name] = submodule
    setattr(vnpy_app_module, name, submodule)

# 从实际模块映射类
from vnpy_ctastrategy import CtaTemplate, CtaStrategyApp
sys.modules['vnpy.app.cta_strategy'].CtaTemplate = CtaTemplate
sys.modules['vnpy.app.cta_strategy'].CtaStrategyApp = CtaStrategyApp
vnpy_app_module.CtaTemplate = CtaTemplate
vnpy_app_module.CtaStrategyApp = CtaStrategyApp

from vnpy_ctabacktester import BacktesterEngine
sys.modules['vnpy.app.cta_backtester'].BacktesterEngine = BacktesterEngine
vnpy_app_module.BacktesterEngine = BacktesterEngine

print("✅ [TEST] vnpy.app兼容性模块加载完成！")
print(f"   确认: BacktesterEngine 的类型 = {type(BacktesterEngine)}, 是否是类 = {isinstance(BacktesterEngine, type)}")

# ============================================
# 兼容性修复完成，现在导入其他模块
# ============================================

from vnpy.event import EventEngine
from vnpy.trader.engine import MainEngine
import traceback

def test_run_strategy_backtest(strategy_code: str, symbol: str, interval: str, start: int, end: int, **kwargs):
    """直接测试run_strategy_backtest"""
    try:
        print(f"\n🚀 [TEST] 开始回测: {symbol} [{start} - {end}]")
        
        # 动态加载策略
        local_vars = {}
        exec(strategy_code, globals(), local_vars)
        
        # 查找CtaTemplate子类
        strategy_classes = [
            v for k, v in local_vars.items()
            if isinstance(v, type) and issubclass(v, CtaTemplate) and v != CtaTemplate
        ]
        
        if not strategy_classes:
            return {
                "error": "策略代码中未找到CtaTemplate子类",
                "hint": "请确保策略继承自CtaTemplate"
            }
        
        StrategyClass = strategy_classes[0]
        print(f"✅ [TEST] 找到策略类: {StrategyClass.__name__}")
        
        # ============================================
        # 创建引擎 - 按照vnpy 4.x最新规范
        # ============================================
        print(f"🔧 [TEST] 创建引擎...")
        
        event_engine = EventEngine()
        print(f"✅ [TEST] event_engine = EventEngine()")
        
        main_engine = MainEngine(event_engine)
        print(f"✅ [TEST] main_engine = MainEngine(event_engine)")
        
        # ✅ vnpy 4.x 正确用法：add_app 添加类，MainEngine负责实例化
        print(f"🔧 [TEST] main_engine.add_app(BacktesterEngine)  // 添加类，不是实例")
        print(f"🔧 [TEST] 确认: BacktesterEngine 的类型 = {type(BacktesterEngine)}, 是否是类 = {isinstance(BacktesterEngine, type)}")
        main_engine.add_app(BacktesterEngine)
        print(f"✅ [TEST] 添加到主引擎完成")
        
        print(f"🔧 [TEST] backtester_engine = main_engine.get_app(BacktesterEngine)")
        backtester_engine = main_engine.get_app(BacktesterEngine)
        print(f"✅ [TEST] get_app 返回: 类型 = {type(backtester_engine)}, 是否是实例 = {not isinstance(backtester_engine, type)}")
        
        # 双重保险：如果get_app返回的还是类，我们自己实例化
        if isinstance(backtester_engine, type):
            print(f"⚠️ [TEST] get_app 返回的还是类，手动实例化: backtester_engine = BacktesterEngine(main_engine, event_engine)")
            backtester_engine = BacktesterEngine(main_engine, event_engine)
            print(f"✅ [TEST] 手动实例化成功，现在是实例: 类型 = {type(backtester_engine)}")
        
        print(f"🔧 [TEST] backtester_engine.init_engine()")
        backtester_engine.init_engine()
        print(f"✅ [TEST] 初始化完成")
        # ============================================
        # 修复完成
        # ============================================
        
        # 格式化日期
        start_str = str(start)
        if len(start_str) == 8:
            start_str = f"{start_str[:4]}-{start_str[4:6]}-{start_str[6:8]}"
        end_str = str(end)
        if len(end_str) == 8:
            end_str = f"{end_str[:4]}-{end_str[4:6]}-{end_str[6:8]}"
        
        setting = {
            "vt_symbol": symbol,
            "interval": interval,
            "start_date": start_str,
            "end_date": end_str,
            "rate": kwargs.get("rate", 0.00003),
            "slippage": kwargs.get("slippage", 0.2),
            "size": kwargs.get("size", 1),
            "pricetick": kwargs.get("pricetick", 0.2),
            "capital": kwargs.get("capital", 1000000.0),
        }
        
        print(f"✅ [TEST] 回测参数: {setting}")
        
        # ============================================
        # 🔥 这里确认：正确调用方法，不直接调用实例
        # ============================================
        print(f"🔧 [TEST] 执行回测: backtester_engine.run_backtesting(...)")
        # ✅ 正确写法：调用方法，不直接调用实例
        # ❌ 错误写法：result = backtester_engine(...)
        # ✅ 正确写法：result = backtester_engine.run_backtesting(...)
        result = backtester_engine.run_backtesting(
            strategy_class=StrategyClass,
            setting=setting
        )
        
        print(f"✅ [TEST] 回测完成: result = backtester_engine.run_backtesting(...)")
        
        # 获取结果
        statistics = backtester_engine.get_result_statistics()
        print(f"✅ [TEST] 回测完成，统计指标: {list(statistics.keys()) if statistics else '无'}")
        
        # 获取每日数据
        daily_df = backtester_engine.get_daily_df()
        if daily_df is not None and hasattr(daily_df, 'to_dict'):
            daily_data = daily_df.to_dict(orient='records')
        else:
            daily_data = []
        
        # 获取交易记录
        trades = backtester_engine.get_all_trades()
        trade_list = [t.__dict__ for t in trades] if trades else []
        
        return {
            "statistics": statistics,
            "trades": trade_list,
            "daily_data": daily_data
        }
        
    except Exception as e:
        error_info = {
            "error": str(e),
            "traceback": traceback.format_exc()
        }
        print(f"❌ [TEST] 回测错误: {error_info['error']}")
        print(error_info['traceback'])
        return error_info

if __name__ == '__main__':
    print("\n=== 开始本地测试 ===")
    result = test_run_strategy_backtest(
        strategy_code=strategy_code,
        symbol="510300.SSE",
        interval="1d",
        start=20210101,
        end=20260301,
        rate=0.00003,
        slippage=0.002,
        size=10000,
        pricetick=0.001,
        capital=1000000,
    )
    
    print("\n=== 测试结果 ===")
    if 'error' in result:
        print(f"❌ 测试失败: {result['error']}")
        print("\n完整traceback:")
        print(result['traceback'])
    else:
        print(f"✅ 测试成功！")
        print(f"📊 统计指标: {list(result['statistics'].keys())}")
        print(f"💹 交易记录数量: {len(result['trades'])}")
        print(f"📈 每日数据行数: {len(result['daily_data'])}")