using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace FileShare_EFCore.Models
{
    /// <summary>
    /// 用户实体 —— 演示数据库 CRUD 操作。
    /// </summary>
    [Comment("用户实体，演示数据库 CRUD 操作")]
    [Table("user")]
    public class UserEntity
    {
        /// <summary>
        /// 获取或设置用户主键 ID（自增）。
        /// </summary>
        [Key]
        [Comment("用户主键")]
        [Column("id")]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int Id { get; set; }

        /// <summary>
        /// 获取或设置用户名称。
        /// </summary>
        [Comment("用户名称")]
        [Column("name")]
        [MaxLength(100)]
        public string? Name { get; set; }

        /// <summary>
        /// 获取或设置用户密码哈希值。
        /// </summary>
        [Comment("密码哈希值")]
        [Column("password-hash")]
        [MaxLength(200)]
        public string? PasswordHash { get; set; }

        /// <summary>
        /// 获取或设置用户邮箱。
        /// </summary>
        [Comment("用户邮箱")]
        [Column("email")]
        [MaxLength(200)]
        public string? Email { get; set; }

        /// <summary>
        /// 获取或设置用户电话号码。
        /// </summary>
        [Comment("电话号码")]
        [Column("phone-number")]
        [MaxLength(50)]
        public string? PhoneNumber { get; set; }

        /// <summary>
        /// 获取或设置用户创建时间。
        /// </summary>
        [Comment("创建时间")]
        [Column("created-at")]
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

        /// <summary>
        /// 获取或设置用户最后更新时间。
        /// </summary>
        [Comment("更新时间")]
        [Column("updated-at")]
        public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
    }
}