"""
实时风控系统压力测试
============

测试场景：
1. 正常行情波动 - 无预警
2. 单日回撤 - 触发警告
3. 连续回撤 - 触发紧急处理
4. 高仓位 - 触发仓位预警
5. 极端情况 - 触发紧急清仓
"""
import sys
import os
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '../src'))

from datetime import datetime
import random
from realtime_risk_panel import RealtimeRiskPanel


def test_normal_market():
    """测试1：正常行情波动"""
    print("\n=== 测试1：正常行情波动 ===")
    panel = RealtimeRiskPanel(risk_style="conservative")
    
    # 初始资金100万
    panel.update_net_value(datetime.now(), 1000000)
    panel.update_position("600519", 100, 1800)  # 贵州茅台 100股
    panel.update_position("000001", 1000, 20)   # 平安银行 1000股
    
    result = panel.update(datetime.now(), 1000000, 1000000 - (100*1800 + 1000*20))
    
    print(f"当前紧急级别: {result['current_emergency_level']}")
    print(f"是否允许开仓: {result['can_open_position']}")
    print(f"未处理预警数: {len(result['new_alerts'])}")
    
    if result['current_emergency_level'] == '正常' and result['can_open_position']:
        print("✅ 测试1通过")
        return True
    else:
        print("❌ 测试1失败")
        return False


def test_daily_drawdown_warning():
    """测试2：单日回撤触发警告"""
    print("\n=== 测试2：单日回撤触发警告 ===")
    panel = RealtimeRiskPanel(risk_style="conservative")
    
    # 初始
    panel.update_net_value(datetime.now(), 1000000)
    
    # 单日回撤4%，触发警告
    panel.update_net_value(datetime.now(), 960000)
    
    result = panel.update(datetime.now(), 960000, 960000)
    
    print(f"当前紧急级别: {result['current_emergency_level']}")
    print(f"新预警数: {len(result['new_alerts'])}")
    
    alerts = panel.get_unhandled_alerts()
    if len(alerts) >= 1:
        print(f"⚠️  触发预警: {alerts[0]['message']}")
        print("✅ 测试2通过")
        return True
    else:
        print("❌ 测试2失败")
        return False


def test_continuous_drawdown():
    """测试3：连续回撤触发限制开仓"""
    print("\n=== 测试3：连续回撤触发限制开仓 ===")
    panel = RealtimeRiskPanel(risk_style="conservative")
    
    # 连续下跌
    values = [1000000, 980000, 950000, 920000, 890000]
    for i, v in enumerate(values):
        dt = datetime.now()
        panel.update_net_value(dt, v)
        panel.update(dt, v, v)
    
    summary = panel.get_panel_summary()
    print(f"当前紧急级别: {summary['current_emergency_level']}")
    print(f"未处理预警数: {summary['unhandled_alerts']}")
    print(f"允许开仓: {summary['can_open_position']}")
    
    if not summary['can_open_position']:
        print("✅ 测试3通过，已限制开仓")
        return True
    else:
        print("❌ 测试3失败")
        return False


def test_high_position_concentration():
    """测试4：高持仓集中度"""
    print("\n=== 测试4：高持仓集中度 ===")
    panel = RealtimeRiskPanel(risk_style="conservative")
    
    panel.update_net_value(datetime.now(), 1000000)
    # 单个持仓50%，超过40%临界值
    panel.update_position("600519", 278, 1800)  # 500400 / 1000000 ≈ 50%
    
    result = panel.update(datetime.now(), 1000000, 500000)
    
    alerts = panel.get_unhandled_alerts()
    concentration_alerts = [a for a in alerts if a['alert_type'] == 'CONCENTRATION']
    
    print(f"集中度预警数: {len(concentration_alerts)}")
    if concentration_alerts:
        print(f"⚠️  {concentration_alerts[0]['message']}")
    
    if len(concentration_alerts) >= 1:
        print("✅ 测试4通过")
        return True
    else:
        print("❌ 测试4失败")
        return False


def test_emergency_liquidate():
    """测试5：极端情况触发紧急清仓"""
    print("\n=== 测试5：极端情况触发紧急清仓 ===")
    panel = RealtimeRiskPanel(risk_style="conservative")
    
    # 极端回撤：从100万跌到80万，回撤20%
    panel.update_net_value(datetime.now(), 1000000)
    values = [1000000, 970000, 930000, 880000, 850000, 800000]
    for v in values:
        dt = datetime.now()
        panel.update_net_value(dt, v)
        panel.update(dt, v, v)
    
    summary = panel.get_panel_summary()
    print(f"当前紧急级别: {summary['current_emergency_level']}")
    print(f"需要紧急清仓: {summary['need_emergency_liquidate']}")
    
    if summary['need_emergency_liquidate']:
        print("✅ 测试5通过，触发紧急清仓")
        return True
    else:
        print("❌ 测试5失败")
        return False


def test_performance():
    """性能测试：1000次更新"""
    print("\n=== 性能测试：1000次更新 ===")
    import time
    
    panel = RealtimeRiskPanel(risk_style="conservative")
    panel.update_net_value(datetime.now(), 1000000)
    
    # 添加10只股票
    symbols = [f"{i:06d}" for i in range(1, 11)]
    for i, sym in enumerate(symbols):
        price = 10 + i * 10
        panel.update_position(sym, 1000, price)
    
    start = time.time()
    for i in range(1000):
        # 随机波动净值
        nv = 1000000 * (1 + random.uniform(-0.001, 0.001))
        panel.update(datetime.now(), nv, nv * 0.3)
    
    end = time.time()
    elapsed = end - start
    qps = 1000 / elapsed
    
    print(f"1000次更新耗时: {elapsed:.3f}秒")
    print(f"QPS: {qps:.1f} 次/秒")
    
    if qps > 100:
        print("✅ 性能测试通过")
        return True
    else:
        print("⚠️ 性能一般，但可以接受")
        return True


def main():
    """运行所有测试"""
    print("🚀 开始实时风控系统压力测试\n")
    
    tests = [
        test_normal_market,
        test_daily_drawdown_warning,
        test_continuous_drawdown,
        test_high_position_concentration,
        test_emergency_liquidate,
        test_performance
    ]
    
    passed = 0
    failed = 0
    
    for test in tests:
        try:
            if test():
                passed += 1
            else:
                failed += 1
        except Exception as e:
            print(f"💥 测试 {test.__name__} 异常: {e}")
            failed += 1
    
    print(f"\n📊 测试结果汇总:")
    print(f"通过: {passed}/{len(tests)}")
    print(f"失败: {failed}/{len(tests)}")
    
    if failed == 0:
        print("\n🎉 所有测试通过！系统正常工作！")
        return 0
    else:
        print(f"\n❌ {failed} 个测试失败")
        return 1


if __name__ == "__main__":
    sys.exit(main())