"""
A股相关 API 路由
"""
from fastapi import APIRouter, HTTPException, BackgroundTasks
from typing import Dict, Any
from app.utils.logger import logger
from app.config import get_settings

router = APIRouter()

# 全局变量，用于访问智能体实例
_astock_agent_instance = None


def set_astock_agent(agent):
    """设置智能体实例（由 main.py 调用）"""
    global _astock_agent_instance
    _astock_agent_instance = agent


@router.get("/status")
async def get_astock_status() -> Dict[str, Any]:
    """
    获取A股智能体状态

    Returns:
        智能体状态信息
    """
    try:
        if _astock_agent_instance is None:
            return {
                "enabled": False,
                "message": "A股智能体未启用"
            }

        settings = get_settings()

        return {
            "enabled": True,
            "running": _astock_agent_instance.running,
            "selector_type": "short_term_thematic",
            "description": "短期题材选股器（题材轮动 + 技术面确认 + 风险控制）",
            "config": {
                "min_market_cap": settings.astock_min_market_cap if hasattr(settings, 'astock_min_market_cap') else 50,
                "max_market_cap": settings.astock_max_market_cap if hasattr(settings, 'astock_max_market_cap') else 500,
                "change_threshold": settings.astock_change_threshold,
                "top_n": settings.astock_top_n
            }
        }

    except Exception as e:
        logger.error(f"获取A股状态失败: {e}")
        raise HTTPException(status_code=500, detail=str(e))


@router.post("/select")
async def trigger_selection(background_tasks: BackgroundTasks) -> Dict[str, Any]:
    """
    手动触发选股

    Returns:
        选股任务状态
    """
    try:
        if _astock_agent_instance is None:
            raise HTTPException(status_code=400, detail="A股智能体未启用")

        # 在后台执行选股任务
        background_tasks.add_task(_astock_agent_instance.run_once)

        return {
            "success": True,
            "message": "选股任务已提交，正在后台执行",
            "note": "请查看通知或日志获取结果"
        }

    except HTTPException:
        raise
    except Exception as e:
        logger.error(f"触发选股失败: {e}")
        raise HTTPException(status_code=500, detail=str(e))


@router.post("/select/sync")
async def trigger_selection_sync() -> Dict[str, Any]:
    """
    手动触发选股（同步执行）

    Returns:
        选股结果
    """
    try:
        if _astock_agent_instance is None:
            raise HTTPException(status_code=400, detail="A股智能体未启用")

        # 同步执行选股
        result = await _astock_agent_instance.run_once()

        return {
            "success": True,
            "result": result
        }

    except HTTPException:
        raise
    except Exception as e:
        logger.error(f"触发选股失败: {e}")
        raise HTTPException(status_code=500, detail=str(e))


@router.get("/config")
async def get_astock_config() -> Dict[str, Any]:
    """
    获取A股选股配置

    Returns:
        配置信息
    """
    try:
        settings = get_settings()

        return {
            "selector": {
                "type": "short_term_thematic",
                "description": "短期题材选股器",
                "strategy": "题材轮动 + 技术面确认 + 风险控制"
            },
            "screening": {
                "min_market_cap": 50,  # 最小市值（亿）
                "max_market_cap": 500,  # 最大市值（亿）
                "min_turnover": 3.0,    # 最小换手率（%）
                "max_turnover": 15.0,   # 最大换手率（%）
                "sector_change_threshold": 2.0,  # 板块涨幅阈值（%）
                "volume_ratio_threshold": 1.2    # 量比阈值
            },
            "risk_control": {
                "max_drawdown": 10.0,        # 最大回撤（%）
                "hard_stop_loss": -7.0,      # 硬止损（%）
                "max_single_position": 20,   # 单票最大仓位（%）
                "max_sector_position": 40,   # 单行业最大仓位（%）
                "max_total_position": 80     # 总仓位最大值（%）
            },
            "schedule": {
                "enabled": settings.astock_monitor_enabled,
                "time": "15:30",  # 盘后运行
                "timezone": "Asia/Shanghai"
            },
            "notifications": {
                "dingtalk": settings.dingtalk_enabled,
                "telegram": settings.telegram_enabled
            }
        }

    except Exception as e:
        logger.error(f"获取配置失败: {e}")
        raise HTTPException(status_code=500, detail=str(e))


@router.get("/sectors")
async def get_hot_sectors(limit: int = 10) -> Dict[str, Any]:
    """
    获取当前异动板块

    Args:
        limit: 返回板块数量

    Returns:
        异动板块列表
    """
    try:
        from app.astock_agent.tushare_client import get_tushare_client
        from app.config import get_settings

        settings = get_settings()
        ts_client = get_tushare_client(settings.tushare_token)

        if not ts_client:
            raise HTTPException(status_code=400, detail="Tushare客户端未初始化")

        # 获取异动板块
        sectors_df = ts_client.get_hot_sectors(threshold=2.0)

        if sectors_df.empty:
            return {
                "success": True,
                "count": 0,
                "sectors": []
            }

        # 转换为列表格式
        sectors = []
        for _, row in sectors_df.head(limit).iterrows():
            sectors.append({
                "code": row['ts_code'],
                "name": row['name'],
                "change_pct": float(row['change_pct']),
                "amount": float(row['amount']),
                "amount_yi": float(row['amount']) / 100000000,  # 转换为亿
                "close": float(row['close'])
            })

        return {
            "success": True,
            "count": len(sectors),
            "sectors": sectors
        }

    except HTTPException:
        raise
    except Exception as e:
        logger.error(f"获取异动板块失败: {e}")
        raise HTTPException(status_code=500, detail=str(e))