using SqlSugar;

namespace AssetManager.Data;

/// <summary>
/// 持仓明细表
/// </summary>
[SugarTable("positions")]
public class Position
{
    /// <summary>
    /// 主键
    /// </summary>
    [SugarColumn(IsPrimaryKey = true, IsIdentity = false)]
    public string? Id { get; set; }
    
    /// <summary>
    /// 所属组合ID
    /// </summary>
    [SugarColumn(ColumnName = "portfolio_id", IndexGroupNameList = new string[] { "idx_portfolio_id" })]
    public string? PortfolioId { get; set; }
    
    /// <summary>
    /// 标的代码 (如: UPRO.US)
    /// </summary>
    [SugarColumn(ColumnName = "stock_code", Length = 50)]
    public string? StockCode { get; set; }
    
    /// <summary>
    /// 标的名称
    /// </summary>
    [SugarColumn(ColumnName = "stock_name", Length = 200)]
    public string? StockName { get; set; }
    
    /// <summary>
    /// 资产类型 (Stock/Crypto)
    /// </summary>
    [SugarColumn(ColumnName = "asset_type", Length = 20)]
    public string? AssetType { get; set; }
    
    /// <summary>
    /// 持有数量
    /// </summary>
    [SugarColumn(ColumnName = "shares", ColumnDataType = "decimal(18,8)")]
    public decimal Shares { get; set; }
    
    /// <summary>
    /// 持仓均价
    /// </summary>
    [SugarColumn(ColumnName = "avg_price", ColumnDataType = "decimal(18,4)")]
    public decimal AvgPrice { get; set; }
    
    /// <summary>
    /// 剩余成本（原始币种）
    /// 用于精确追踪卖出后的剩余成本，避免汇率变化影响成本计算
    /// </summary>
    [SugarColumn(ColumnName = "total_cost", ColumnDataType = "decimal(18,4)")]
    public decimal TotalCost { get; set; }
    
    /// <summary>
    /// 标的币种
    /// </summary>
    [SugarColumn(ColumnName = "currency", Length = 10)]
    public string? Currency { get; set; }
    
    /// <summary>
    /// 建仓时间
    /// </summary>
    [SugarColumn(ColumnName = "created_at")]
    public DateTime CreatedAt { get; set; }
    
    /// <summary>
    /// 最后更新时间
    /// </summary>
    [SugarColumn(ColumnName = "updated_at")]
    public DateTime UpdatedAt { get; set; }
}