using System.ComponentModel.DataAnnotations;

namespace CampusErrand.Models.Dtos;

/// <summary>
/// 发起改价请求
/// </summary>
public class PriceChangeRequest
{
    /// <summary>改价类型：Commission 或 GoodsAmount</summary>
    [Required(ErrorMessage = "改价类型不能为空")]
    public string ChangeType { get; set; } = string.Empty;

    /// <summary>新价格</summary>
    public decimal NewPrice { get; set; }
}

/// <summary>
/// 响应改价请求
/// </summary>
public class RespondPriceChangeRequest
{
    /// <summary>操作：Accepted 或 Rejected</summary>
    [Required(ErrorMessage = "操作不能为空")]
    public string Action { get; set; } = string.Empty;
}

/// <summary>
/// 改价响应
/// </summary>
public class PriceChangeResponse
{
    public int Id { get; set; }
    public int OrderId { get; set; }
    public int InitiatorId { get; set; }
    public string ChangeType { get; set; } = string.Empty;
    public decimal OriginalPrice { get; set; }
    public decimal NewPrice { get; set; }
    /// <summary>差额（正数=补缴，负数=退款）</summary>
    public decimal Difference { get; set; }
    public string Status { get; set; } = string.Empty;
    public DateTime CreatedAt { get; set; }
}