using Store.Users.Contracts.Enums;
using System.ComponentModel.DataAnnotations;
namespace Store.Users.Contracts.Dtos;

/// <summary>账户资料；null 保留原值，空字符串清空文本。输入约束由 DTO 声明，权限与账户关系由服务检查。</summary>
public class UserEditRequest
{
    [StringLength(50)]
    public string? NickName { get; set; }
    [StringLength(30)]
    public string? Mobile { get; set; }
    [StringLength(100)]
    public string? CompanyName { get; set; }
    [StringLength(255)]
    public string? Notes { get; set; }
    [StringLength(50)]
    public string? CardId { get; set; }
    [EnumDataType(typeof(UserGroup), ErrorMessage = "请选择有效的用户分组")]
    public UserGroup? GroupId { get; set; }
    /// <summary>仅管理员可设置；普通账号不能通过资料修改提升管理员级别。</summary>
    [EnumDataType(typeof(UserAdminLevel), ErrorMessage = "管理员级别只能为普通用户或超级管理员")]
    public UserAdminLevel? SaLevel { get; set; }
    [StringLength(1000)]
    public string? Authority { get; set; }
    [StringLength(1000)]
    public string? ForbiddenPage { get; set; }
    [StringLength(50)]
    public string? OemId { get; set; }
    [Range(30, int.MaxValue, ErrorMessage = "每月续费积分不能低于30")]
    public int? ShopPointsPerMonth { get; set; }
    [Range(typeof(decimal), "2.2", "999999")]
    public decimal? PostagePerOrder { get; set; }
    [Range(typeof(decimal), "2.5", "999999")]
    public decimal? RefundPostagePerOrder { get; set; }
    [Range(typeof(decimal), "0", "999999")]
    public decimal? GiftOemAmountPerOrder { get; set; }
    [Range(typeof(decimal), "0", "999999")]
    public decimal? SyncLogisticsPerOrder { get; set; }

}

/// <summary>修改账户资料；账户 ID 与资料字段统一通过 JSON 请求体提交。</summary>
public sealed class UserUpdateRequest : UserEditRequest
{
    [Range(1, int.MaxValue, ErrorMessage = "ID必须大于0")]
    public int Id { get; set; }
}

/// <summary>创建主账号或当前主账号的直属子账号。</summary>
public sealed class UserCreateRequest : UserEditRequest
{
    /// <summary>创建子账号时的父账号；管理员可指定任意主账号，普通主账号只能指定自己。</summary>
    [StringLength(20)]
    public string? ParentUserName { get; set; }
    [Required(ErrorMessage = "用户名不能为空"), StringLength(20)] public string UserName { get; set; } = "";
    [Required(ErrorMessage = "密码不能为空"), StringLength(128, MinimumLength = 6)] public string Password { get; set; } = "";
}

/// <summary>非管理员本人改密需原密码；管理员可重置任意账户，主账号可重置直属子账号密码。</summary>
public sealed class ChangePasswordRequest
{
    [StringLength(20)]
    public string? UserName { get; set; }
    [StringLength(128)]
    public string? OldPassword { get; set; }
    [Required(ErrorMessage = "新密码不能为空"), StringLength(128, MinimumLength = 6)] public string NewPassword { get; set; } = "";
}

/// <summary>本人修改密码时验证原密码非空。</summary>
public sealed class UserPasswordProofRequest
{
    [Required(ErrorMessage = "原密码不能为空")] public string OldPassword { get; set; } = "";
}

/// <summary>分页参数；在查询数据库前完成范围校验。</summary>
public class UserSearchRequest
{
    [Range(1, 1000000)]
    public int Page { get; set; } = 1;
    [Range(1, 200)]
    public int PageSize { get; set; } = 50;
    [StringLength(100)]
    public string? Keyword { get; set; }
    [EnumDataType(typeof(UserGroup), ErrorMessage = "请选择有效的用户分组")]
    public UserGroup? GroupId { get; set; }
    /// <summary>查询子账号时可按父账号筛选；管理员可指定任意账号，普通主账号只能指定自己。</summary>
    [StringLength(20)]
    public string? ParentUserName { get; set; }

}

public sealed record UserPage<T>(long Total, IReadOnlyList<T> Items);

/// <summary>流水查询支持时间范围、操作类型、店铺及订单过滤。</summary>
public sealed class UserRecordSearchRequest : UserSearchRequest, IValidatableObject
{
    /// <summary>目标账户；省略时查询本人。</summary>
    [StringLength(20)]
    public string? UserName { get; set; }
    public DateTime? StartTime { get; set; }
    public DateTime? EndTime { get; set; }
    [StringLength(20)]
    public string? Operation { get; set; }
    [StringLength(50)]
    public string? ShopId { get; set; }
    public int? PaymentType { get; set; }
    [StringLength(100)]
    public string? OrderId { get; set; }

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
    {
        if (StartTime > EndTime)
            yield return new ValidationResult("开始时间不能晚于结束时间", [nameof(StartTime), nameof(EndTime)]);
    }
}

/// <summary>单个账户 ID 参数的校验，供服务内部调用复用。</summary>
public sealed class UserIdRequest
{
    [Range(1, int.MaxValue, ErrorMessage = "ID必须大于0")]
    public int Id { get; set; }
}