using AssetManager.Models.DTOs;

namespace AssetManager.Services;

public class PortfolioService : IPortfolioService
{
    public CreatePortfolioResponse CreatePortfolio(CreatePortfolioRequest request)
    {
        // 模拟创建投资组合
        return new CreatePortfolioResponse
        {
            id = "port-" + Guid.NewGuid().ToString().Substring(0, 8),
            totalValue = request.stocks.Sum(s => s.price * s.amount),
            returnRate = 0,
            currency = request.currency,
            createdAt = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")
        };
    }

    public PortfolioDetailResponse GetPortfolioById(string id)
    {
        // 模拟获取投资组合详情
        return new PortfolioDetailResponse
        {
            id = id,
            name = "我的投资组合",
            currency = "CNY",
            strategy = new StrategyInfo
            {
                id = "hfea",
                name = "HFEA 风险平价策略",
                description = "高风险高收益策略"
            },
            portfolioValue = 125000,
            totalReturn = 12500,
            todayProfit = 2500,
            todayProfitCurrency = "CNY",
            positions = new List<PositionItem>
            {
                new PositionItem
                {
                    id = "pos-001",
                    stockCode = "UPRO",
                    stockName = "标普500三倍杠杆ETF",
                    amount = 100,
                    averagePrice = 50,
                    currentPrice = 55,
                    totalValue = 5500,
                    profit = 500,
                    profitRate = 10,
                    currency = "USD"
                }
            },
            transactions = new List<TransactionItem>
            {
                new TransactionItem
                {
                    id = "trans-001",
                    portfolioId = id,
                    date = "2026-02-24",
                    time = "14:30:00",
                    type = "buy",
                    title = "购买 UPRO",
                    amount = 5000,
                    currency = "USD",
                    status = "completed",
                    remark = "初始建仓"
                }
            }
        };
    }

    public GetTransactionsResponse GetTransactions(string portfolioId, int limit, int offset)
    {
        // 模拟获取交易记录
        return new GetTransactionsResponse
        {
            items = new List<TransactionItem>
            {
                new TransactionItem
                {
                    id = "trans-001",
                    portfolioId = portfolioId,
                    date = "2026-02-24",
                    time = "14:30:00",
                    type = "buy",
                    title = "购买 UPRO",
                    amount = 5000,
                    currency = "USD",
                    status = "completed",
                    remark = "初始建仓"
                }
            },
            total = 1,
            page = offset / limit + 1,
            pageSize = limit
        };
    }

    public CreateTransactionResponse CreateTransaction(CreateTransactionRequest request)
    {
        // 模拟执行交易
        return new CreateTransactionResponse
        {
            id = "trans-" + Guid.NewGuid().ToString().Substring(0, 8),
            totalAmount = request.price * request.amount,
            status = "processing",
            createdAt = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")
        };
    }

    public GetPortfoliosResponse GetPortfolios()
    {
        // 模拟获取投资组合列表
        return new GetPortfoliosResponse
        {
            items = new List<PortfolioListItem>
            {
                new PortfolioListItem
                {
                    id = "hfea-001",
                    name = "美股全天候杠杆",
                    tags = "HFEA · 季度调仓",
                    status = "监控中",
                    statusType = "green",
                    iconChar = "H",
                    iconBgClass = "bg-green-100",
                    iconTextClass = "text-green-700",
                    value = 156240,
                    currency = "USD",
                    returnRate = 42.82,
                    returnType = "positive"
                },
                new PortfolioListItem
                {
                    id = "ma-002",
                    name = "纳指双均线趋势",
                    tags = "趋势跟踪 · 日线",
                    status = "等待信号",
                    statusType = "gray",
                    iconChar = "T",
                    iconBgClass = "bg-blue-100",
                    iconTextClass = "text-blue-700",
                    value = 412500,
                    currency = "USD",
                    returnRate = -1.79,
                    returnType = "negative"
                },
                new PortfolioListItem
                {
                    id = "hk-003",
                    name = "港股价值投资",
                    tags = "价值投资 · 蓝筹",
                    status = "持有中",
                    statusType = "green",
                    iconChar = "H",
                    iconBgClass = "bg-green-100",
                    iconTextClass = "text-green-700",
                    value = 896000,
                    currency = "HKD",
                    returnRate = 12.56,
                    returnType = "positive"
                }
            }
        };
    }

    public TotalAssetsResponse GetTotalAssets()
    {
        // 模拟获取总资产情况
        return new TotalAssetsResponse
        {
            totalValue = 1284592.4,
            currency = "CNY",
            todayProfit = 12482,
            todayProfitCurrency = "CNY",
            totalReturnRate = 24.82
        };
    }
}