"""
账户实时数据API - 从币安API获取实时账户和订单数据
"""
from fastapi import APIRouter, HTTPException
import sys
from pathlib import Path
import logging

project_root = Path(__file__).parent.parent.parent.parent
sys.path.insert(0, str(project_root))
sys.path.insert(0, str(project_root / 'backend'))
sys.path.insert(0, str(project_root / 'trading_system'))

from database.models import TradingConfig

logger = logging.getLogger(__name__)
router = APIRouter()


async def get_realtime_account_data():
    """从币安API实时获取账户数据"""
    try:
        # 从数据库读取API密钥
        api_key = TradingConfig.get_value('BINANCE_API_KEY')
        api_secret = TradingConfig.get_value('BINANCE_API_SECRET')
        use_testnet = TradingConfig.get_value('USE_TESTNET', False)
        
        if not api_key or not api_secret:
            raise HTTPException(
                status_code=400, 
                detail="API密钥未配置，请在配置界面设置BINANCE_API_KEY和BINANCE_API_SECRET"
            )
        
        # 导入交易系统的BinanceClient
        try:
            from binance_client import BinanceClient
        except ImportError:
            # 如果直接导入失败，尝试从trading_system导入
            trading_system_path = project_root / 'trading_system'
            sys.path.insert(0, str(trading_system_path))
            from binance_client import BinanceClient
        
        # 创建客户端
        client = BinanceClient(
            api_key=api_key,
            api_secret=api_secret,
            testnet=use_testnet
        )
        
        await client.connect()
        
        # 获取账户余额
        balance = await client.get_account_balance()
        
        # 获取持仓
        positions = await client.get_open_positions()
        
        # 计算总仓位价值和总盈亏
        total_position_value = 0
        total_pnl = 0
        open_positions_count = 0
        
        for pos in positions:
            position_amt = float(pos.get('positionAmt', 0))
            if position_amt == 0:
                continue
                
            entry_price = float(pos.get('entryPrice', 0))
            mark_price = float(pos.get('markPrice', 0))
            unrealized_pnl = float(pos.get('unRealizedProfit', 0))
            
            if mark_price == 0:
                # 如果没有标记价格，使用入场价
                mark_price = entry_price
            
            position_value = abs(position_amt * mark_price)
            total_position_value += position_value
            total_pnl += unrealized_pnl
            open_positions_count += 1
        
        await client.disconnect()
        
        return {
            "total_balance": balance.get('total', 0),
            "available_balance": balance.get('available', 0),
            "total_position_value": total_position_value,
            "total_pnl": total_pnl,
            "open_positions": open_positions_count
        }
    except HTTPException:
        raise
    except Exception as e:
        logger.error(f"获取账户数据失败: {e}", exc_info=True)
        raise HTTPException(status_code=500, detail=f"获取账户数据失败: {str(e)}")


@router.get("/realtime")
async def get_realtime_account():
    """获取实时账户数据"""
    return await get_realtime_account_data()


@router.get("/positions")
async def get_realtime_positions():
    """获取实时持仓数据"""
    try:
        # 从数据库读取API密钥
        api_key = TradingConfig.get_value('BINANCE_API_KEY')
        api_secret = TradingConfig.get_value('BINANCE_API_SECRET')
        use_testnet = TradingConfig.get_value('USE_TESTNET', False)
        
        logger.info(f"尝试获取实时持仓数据 (testnet={use_testnet})")
        
        if not api_key or not api_secret:
            error_msg = "API密钥未配置"
            logger.warning(error_msg)
            raise HTTPException(
                status_code=400, 
                detail=error_msg
            )
        
        # 导入BinanceClient
        try:
            from binance_client import BinanceClient
        except ImportError:
            trading_system_path = project_root / 'trading_system'
            sys.path.insert(0, str(trading_system_path))
            from binance_client import BinanceClient
        
        client = BinanceClient(
            api_key=api_key,
            api_secret=api_secret,
            testnet=use_testnet
        )
        
        logger.info("连接币安API获取持仓...")
        await client.connect()
        positions = await client.get_open_positions()
        await client.disconnect()
        
        logger.info(f"获取到 {len(positions)} 个持仓")
        
        # 格式化持仓数据
        formatted_positions = []
        for pos in positions:
            position_amt = float(pos.get('positionAmt', 0))
            if position_amt == 0:
                continue
                
            entry_price = float(pos.get('entryPrice', 0))
            mark_price = float(pos.get('markPrice', 0))
            unrealized_pnl = float(pos.get('unRealizedProfit', 0))
            
            if mark_price == 0:
                mark_price = entry_price
            
            position_value = abs(position_amt * mark_price)
            pnl_percent = 0
            if entry_price > 0 and position_value > 0:
                pnl_percent = (unrealized_pnl / position_value) * 100
            
            formatted_positions.append({
                "symbol": pos.get('symbol'),
                "side": "BUY" if position_amt > 0 else "SELL",
                "quantity": abs(position_amt),
                "entry_price": entry_price,
                "mark_price": mark_price,
                "pnl": unrealized_pnl,
                "pnl_percent": pnl_percent,
                "leverage": int(pos.get('leverage', 1))
            })
        
        logger.info(f"格式化后 {len(formatted_positions)} 个有效持仓")
        return formatted_positions
    except HTTPException:
        raise
    except Exception as e:
        error_msg = f"获取持仓数据失败: {str(e)}"
        logger.error(error_msg, exc_info=True)
        raise HTTPException(status_code=500, detail=error_msg)