using System;

namespace XplorePlane.Models
{
    /// <summary>
    /// 角色变更事件参数（供不使用 EventAggregator 的组件直接订阅）。
    /// </summary>
    public class RoleChangedEventArgs : EventArgs
    {
        /// <summary>变更前角色（首次登录时为 null）。</summary>
        public UserRole? OldRole { get; }

        /// <summary>变更后角色。</summary>
        public UserRole NewRole { get; }

        public RoleChangedEventArgs(UserRole? oldRole, UserRole newRole)
        {
            OldRole = oldRole;
            NewRole = newRole;
        }
    }
}