using Cowain.Bake.BLL;
using Cowain.Bake.Common;
using Cowain.Bake.Common.Enums;
using Cowain.Bake.Model;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Unity;
using Prism.Commands;
using System.Windows;
using HandyControl.Controls;
using Cowain.Bake.Model.Entity;
using System.ComponentModel;
using System.Windows.Input;
using System.Text.Json;
using Newtonsoft.Json;


namespace Cowain.Bake.UI.UserManagerment.ViewModels
{
    class UserManagermentViewModel : ViewModelBase, INotifyPropertyChanged
    {
        public UserManagermentViewModel(IUnityContainer unityContainer, IRegionManager regionManager) : base(unityContainer, regionManager)
        {
            this.PageTitle = "用户管理";
            userManagermentService = _unityContainer.Resolve<UserService>();
            SetRoleList();
        }

        //记忆当前所有的用户
        public List<TUserManage> CurrentUserList { get; set; }

        //公共服务字段
        private UserService userManagermentService { get; set; }

        public new event PropertyChangedEventHandler PropertyChanged; 
        public void OnPropertyChanged(string proName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(proName));
        }
        //datagrid数据源
        private ObservableCollection<TUserManage> userList;
        public ObservableCollection<TUserManage> UserList
        {
            get => userList ?? (userList = new ObservableCollection<TUserManage>());
            set
            {
                if (value != null)
                {
                    userList = value;
                    OnPropertyChanged("UserList");
                }

            }
        }

        //隐藏增加用户的布局
        private Visibility addUserVisibility = Visibility.Collapsed;

        public Visibility AddUserVisibility
        {
            get { return addUserVisibility; }
            set
            {
                if (addUserVisibility != value)
                {
                    addUserVisibility = value;
                    OnPropertyChanged("AddUserVisibility");
                }
               
            }
        }

        //用户搜索框
        private string textBoxContent;
        public string TextBoxContent
        {
            get { return textBoxContent; }
            set
            {
                if (textBoxContent != value)
                {
                    textBoxContent = value;
                    OnPropertyChanged("TextBoxContent");
                }
            }
        }
        //用户框
        private string userNameBoxContent;
        public string UserNameBoxContent
        {
            get { return userNameBoxContent; }
            set 
            {
                if (userNameBoxContent != value)
                {
                    userNameBoxContent = value;
                    OnPropertyChanged("UserNameBoxContent");
                }
            }
        }
        //账号框
        private string userIdBoxContent;
        public string UserIdBoxContent
        {
            get { return userIdBoxContent; }
            set
            {
                if (userIdBoxContent != value)
                {
                    userIdBoxContent = value;
                    OnPropertyChanged("UserIdBoxContent");
                }
            }
        }
        //密码框
        private string pwdBoxContent;
        public string PwdBoxContent
        {
            get { return pwdBoxContent; }
            set
            {
                if (pwdBoxContent != value)
                {
                    pwdBoxContent = value;
                    OnPropertyChanged("PwdBoxContent");
                }
            }
        }

        //确认密码框
        //private string confirmPwdBoxContent;
        //public string ConfirmPwdBoxContent
        //{
        //    get { return confirmPwdBoxContent; }
        //    set
        //    {
        //        if (confirmPwdBoxContent != value)
        //        {
        //            confirmPwdBoxContent = value;
        //            OnPropertyChanged("ConfirmPwdBoxContent");
        //        }
        //    }
        //}
        //角色下拉框
        private string roleComboboxSelected;
        public string RoleComboboxSelected
        {
            get { return roleComboboxSelected; }
            set
            {
                if (roleComboboxSelected != value)
                {
                    roleComboboxSelected = value;
                    OnPropertyChanged("RoleComboboxSelected");
                }
            }
        }

        private TUserManage selectedUser;
        public TUserManage SelectedUser
        {
            get { return selectedUser; }
            set
            {
                if (selectedUser != value)
                {
                    selectedUser = value;
                    OnPropertyChanged("SelectedUser");
                }
            }   
        }

        public void AsyncRefreshTask()
        {
            Application.Current?.Dispatcher?.Invoke(new Action(() =>
            {
                Refresh();
            }));
        }

        public async override void Refresh()
        {
            UserList.Clear();
            if (CurrentUserList!=null)
            {
                CurrentUserList.Clear();

            }
            var listUser = await System.Threading.Tasks.Task.Run(() =>
             {
                 var userService = _unityContainer.Resolve<UserService>();
                 //从数据库查询任务
                 return userService.GetAllUsers();
             });

            listUser.ForEach(x => UserList.Add(x));
            CurrentUserList = listUser;
        }

        public List<string> RoleList { get; set; }
        public void SetRoleList()
        {
            RoleList = new List<string>();
            foreach(ERole role in Enum.GetValues(typeof(ERole)))
            {
                RoleList.Add(role.GetDescription());
            }
        }
        //用户查询
        public DelegateCommand QueryUserCommand => new DelegateCommand(() =>
        {
            
            if (string.IsNullOrWhiteSpace(TextBoxContent))
            {
                Refresh();
                return;
            }
            
            var queryList = userManagermentService.QueryUser(TextBoxContent);
            if (queryList.Count > 0)
            {
                UserList.Clear();
                UserList.Add(queryList[0]);
                Growl.Info("查询成功！");

            }
            else
            {
                Growl.Info("没有数据！");
            }
        });

        //更改用户是否有效
        public DelegateCommand<string> UserValidCommand => new DelegateCommand<string>((y) =>
        {
            if (SelectedUser == null)
            {
                Growl.Info("请选择用户！");
                return;
            }
            var result = HandyControl.Controls.MessageBox.Ask("确认更改？", "操作提示");
            if (result == MessageBoxResult.Cancel)
            {
                return;
            }
            if (y == EValidStatus.Invalid.ToString())
            {
                if (SelectedUser.Valid!=false)
                {
                    SelectedUser.Valid = false;
                }
                else 
                {
                    return;
                }

            }
            else if (y == EValidStatus.Valid.ToString())
            {
                if (SelectedUser.Valid!=true)
                {
                    SelectedUser.Valid = true;
                }
                else
                {
                    return;
                }
            }
            userManagermentService.Update(SelectedUser);
            Refresh();
            Growl.Success("更改成功！");

        });

        
        public DelegateCommand ShowAddUserCommand => new DelegateCommand(() =>
        {
            AddUserVisibility = Visibility.Visible;
            
        });

        public DelegateCommand AddUserCommand => new DelegateCommand(() =>
        {
            if (string.IsNullOrWhiteSpace(UserIdBoxContent))
            {
                Growl.Info("请输入账号！");
                return;
            }
            if (CurrentUserList.Where(a => a.UserId == UserIdBoxContent).ToList().Count > 0)
            {
                Growl.Info("账号已经存在！");
                return;
            }
            //if (PwdBoxContent != ConfirmPwdBoxContent)
            //{
            //    Growl.Info("密码不一致！");
            //    return;
            //}
            if (string.IsNullOrWhiteSpace(RoleComboboxSelected))
            {
                Growl.Info("请选择用户角色！");
                return;
            }
            TUserManage addUserItem = new TUserManage()
            {
                UserId = UserIdBoxContent,
                UserName = UserNameBoxContent,
                Password = PwdBoxContent,
                //将枚举描述转换成对应int
                RoleId = (int)EnumHelper.GetValueByDescription<ERole>(roleComboboxSelected),
                Valid = true,
            };
            if (userManagermentService.Insert(addUserItem)>0)
            {
                UserList.Add(addUserItem);
                AddUserVisibility = Visibility.Collapsed;
                Growl.Success("新增成功！");
            };
        });
        public DelegateCommand DeleteUserCommand => new DelegateCommand(() =>
        {
            if (SelectedUser == null)
            {
                Growl.Info("请选择用户！");
                return;
            }

            var result = HandyControl.Controls.MessageBox.Ask($"用户名:{selectedUser.UserName},是否删除？", "操作提示");
            if (result == MessageBoxResult.Cancel)
            {
                return;
            }

            if (0 == userManagermentService.Delete(selectedUser))
            {
                Growl.Warning("删除失败！");
                return;
            }

            Growl.Success($"删除用户【{selectedUser.UserName}】成功!");
            _unityContainer.Resolve<LogService>().AddLog($"删除用户:{selectedUser.UserName}", E_LogType.Operate.ToString());
            Refresh();
       
        });
        public DelegateCommand InitPwdCommand => new DelegateCommand(()=> 
        {
            var result = HandyControl.Controls.MessageBox.Ask("是否初始化？","操作提示");
            if (result == MessageBoxResult.Cancel)
            {
                return;
            }
            if (selectedUser != null)
            {
                selectedUser.Password = "123456";
                userManagermentService.Update(selectedUser);
                Growl.Success("初始化成功");
            }
        });

        public DelegateCommand CancelSaveCommand => new DelegateCommand(() =>
        {
            AddUserVisibility = Visibility.Collapsed;
            UserIdBoxContent = string.Empty;
            UserNameBoxContent = string.Empty;
            PwdBoxContent = string.Empty;
            
        });
    }
}