using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.CommandWpf;
using GalaSoft.MvvmLight.Ioc;
using GalaSoft.MvvmLight.Messaging;
using GalaSoft.MvvmLight.Views;
using MahApps.Metro.Controls.Dialogs;
using Microsoft.Practices.ServiceLocation;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using SoftArcs.WPFSmartLibrary.SmartUserControls;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Bro.UI.Model;
using Bro.Common.Helper;

namespace Bro.UI.ViewModel
{
    public class LoginViewModel : ViewModelBase
    {
        #region IDialogService
        public IDialogCoordinator Dialog
        {
            get
            {
                return SimpleIoc.Default.GetInstance<IDialogCoordinator>("Login");
            }
        }
        #endregion

        #region Public Properties
        private string version = "";
        public string Version
        {
            get => version;
            set => Set(ref version, value);
        }

        private string userName = "";
        public string UserName
        {
            get => userName;
            set => Set(ref userName, value);
        }

        private string password = "";
        public string Password
        {
            get => password;
            set => Set(ref password, value);
        }

        private string userImageSource = "";
        public string UserImageSource
        {
            get => userImageSource;
            set => Set(ref userImageSource, value);
        }

        private List<string> productionCodes = new List<string>();
        public List<string> ProductionCodes
        {
            get => productionCodes;
            set => Set(ref productionCodes, value);
        }

        private string selectedProductionCode = "";
        public string SelectedProductionCode
        {
            get => selectedProductionCode;
            set => Set(ref selectedProductionCode, value);
        }
        #endregion 

        public RelayCommand<SmartLoginOverlay> Cmmd_Submit { get; set; }

        public LoginViewModel()
        {
            Version = " V" + Assembly.GetExecutingAssembly().GetName().Version.ToString();

            //string codesStr = ConfigurationManager.AppSettings["ProductionCodes"];
            //if (!string.IsNullOrWhiteSpace(codesStr))
            //{
            //    ProductionCodes = JsonConvert.DeserializeObject<List<string>>(codesStr);

            //    SelectedProductionCode = ProductionCodes[0];
            //}

            //string configPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Setting.json");
            //if (File.Exists(configPath))
            //{
            //    using (StreamReader reader = new StreamReader(configPath, System.Text.Encoding.UTF8))
            //    {
            //        string dataStr = reader.ReadToEnd();
            //        JObject data = JsonConvert.DeserializeObject<JObject>(dataStr);
            //        ProductionCodes = JsonConvert.DeserializeObject<List<string>>(data.Value<string>("ProductionCodes"));
            //    }
            //}

            ProductionCodes = SettingHelper.GetProductionCodes();
            SelectedProductionCode = ProductionCodes[0];

            Cmmd_Submit = new RelayCommand<SmartLoginOverlay>(OnLoginSubmit, CanLoginSubmit);
        }

        private bool CanLoginSubmit(SmartLoginOverlay arg)
        {
            return !(string.IsNullOrWhiteSpace(UserName) || string.IsNullOrWhiteSpace(Password));
        }

        private void OnLoginSubmit(SmartLoginOverlay obj)
        {
            if (ValidateUser(this.UserName, this.Password))
            {
                SimpleIoc.Default.Register(() =>
                {
                    LoginInfo info = new LoginInfo();
                    info.UserName = UserName;
                    info.ProductionCode = SelectedProductionCode;

                    return info;
                }, true);
                Messenger.Default.Send<object>(null, "LoginOK");
            }
            else
            {
                Dialog.ShowMessageAsync(this, "登录失败", "用户名或密码错误，登录失败", MessageDialogStyle.Affirmative).ContinueWith(t =>
                {
                    UserName = Password = "";
                });
            }
        }

        private bool ValidateUser(string username, string password)
        {
            return userName.ToUpper() == "ADMIN" && password.ToUpper() == "ADMIN";
        }
    }
}