using Prism.Commands;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Data;

namespace WorkStation.Client.ViewModels.Dialogs
{
    public class LoginViewModel : BindableBase, IDialogAware
    {
        /// <summary>
        /// 弹窗标题
        /// </summary>
        public string Title => "登录界面";

        /// <summary>
        /// 账户
        /// </summary>
        private string _account = string.Empty;
        public string Account
        {
            get => _account;
            set => SetProperty(ref _account, value);
        }

        /// <summary>
        /// 密码
        /// </summary>
        private string _password = string.Empty;
        public string Password
        {
            get => _password;
            set => SetProperty(ref _password, value);
        }

        /// <summary>
        /// 用于关闭窗口时，判断是否登录成功。
        /// 如果登录失败就终止当前应用。
        /// </summary>
        private bool _isSuccess = false;

        /// <summary>
        /// 登录命令
        /// </summary>
        public DelegateCommand LoginCommand { get; set; }

        /// <summary>
        /// 请求关闭委托
        /// </summary>
        public event Action<IDialogResult> RequestClose;

        /// <summary>
        /// Determines whether the dialog can be closed.
        /// </summary>
        /// <returns><see langword="true"/> if the dialog can be closed; otherwise, <see langword="false"/>.</returns>
        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {
            if (_isSuccess == false)
            {
                Application.Current.Shutdown();
            }
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            
        }
        public LoginViewModel()
        {
            LoginCommand = new DelegateCommand(() =>
            {
                if (Account == "11" && Password == "22")
                {
                    _isSuccess = true;
                    RequestClose(new DialogResult(ButtonResult.OK));
                }
            });
        }
    }
}