using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using Tiku.Application.Auth;

namespace Tiku.Api.Contracts;

public sealed class PasswordLoginDto
{
    [Required]
    [Description("租户 ID。登录阶段允许客户端指定租户，登录后的业务接口以 JWT/session 解析出的当前租户为准。")]
    public Guid TenantId { get; set; }

    [Required]
    [StringLength(32)]
    [Description("手机号，建议前端提交规范化后的中国大陆手机号。")]
    public string Phone { get; set; } = string.Empty;

    [Required]
    [StringLength(128, MinimumLength = 6)]
    [Description("用户密码。")]
    public string Password { get; set; } = string.Empty;
}

public sealed class SmsLoginDto
{
    [Required]
    [Description("租户 ID。")]
    public Guid TenantId { get; set; }

    [Required]
    [StringLength(32)]
    [Description("中国大陆手机号。")]
    public string Phone { get; set; } = string.Empty;

    [Required]
    [StringLength(12, MinimumLength = 4)]
    [Description("收到的短信验证码。")]
    public string Code { get; set; } = string.Empty;
}

public sealed class OAuthCodeDto
{
    [Required]
    [Description("租户 ID。")]
    public Guid TenantId { get; set; }

    [Required]
    [StringLength(512)]
    [Description("OAuth 平台返回的一次性授权 code。")]
    public string Code { get; set; } = string.Empty;

    [Description("客户端可提供的公开用户资料，不允许包含 token/secret。当前后端先保留模板字段，后续按业务需要逐步使用。")]
    public Dictionary<string, object?>? Profile { get; set; }

    [StringLength(20)]
    [Description("微信用户资料语言，例如 zh_CN。当前微信小程序登录不会使用该字段。")]
    public string? Lang { get; set; }
}

public sealed class RefreshSessionDto
{
    [Required]
    [StringLength(2048)]
    [Description("refresh token。服务端只存储哈希，明文只返回给客户端一次。")]
    public string RefreshToken { get; set; } = string.Empty;
}

public sealed class AuthenticatedUserDto
{
    public Guid UserId { get; init; }
    public string? Phone { get; init; }
    public string? Email { get; init; }
    public string? Name { get; init; }
    public TenantMembershipSummary Tenant { get; init; } = default!;
    public AuthTokenPair Tokens { get; init; } = default!;

    public static AuthenticatedUserDto FromApplication(AuthenticatedUser user)
    {
        return new AuthenticatedUserDto
        {
            UserId = user.UserId,
            Phone = user.Phone,
            Email = user.Email,
            Name = user.Name,
            Tenant = user.Tenant,
            Tokens = user.Tokens
        };
    }
}