using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LB_SmartVisionCommon
{
    /// <summary>
    /// 泛型权限控制特性
    /// </summary>
    [AttributeUsage(AttributeTargets.Property, Inherited = true, AllowMultiple = false)]
    public class PermissionAttribute : Attribute
    {
        /// <summary>
        /// 角色
        /// </summary>
        public Type RoleType { get; }
        /// <summary>
        /// 最小权限
        /// </summary>
        public object MinimumRole { get; }
        /// <summary>
        /// 泛型权限控制特性
        /// </summary>
        /// <param name="roleType">角色</param>
        /// <param name="minimumRole">最小权限</param>
        /// <exception cref="ArgumentException"></exception>
        public PermissionAttribute(Type roleType, object minimumRole)
        {
            if (!roleType.IsEnum)
                throw new ArgumentException("roleType 必须是枚举类型", nameof(roleType));

            RoleType = roleType;
            MinimumRole = minimumRole;
        }
    }
}