using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reactive.Linq;
using System.Text;
using System.Threading.Tasks;
using Avalonia.Media.Imaging;
using Avalonia.Media.TextFormatting;
using AvaloniaApplicationTestNew.Models;
using AvaloniaApplicationTestNew.Views;
using Microsoft.EntityFrameworkCore;
using ReactiveUI;
using Tmds.DBus.Protocol;

namespace AvaloniaApplicationTestNew.ViewModels
{
    public class AdminPageViewModel : ViewModelBase
    {
        List<User> users;
        List<User> users0;
        List<Localuser> localusers;
        List<Gender> genders;
        int idUser;
        string findText;
        Gender filtGendr;
        List<Bitmap> imageUser;
        Dictionary<User, Bitmap> ConvertImage = new Dictionary<User, Bitmap>();
        List<Dictionary<User, Bitmap>> listDictionaries = new List<Dictionary<User, Bitmap>>();
        List<Localuser> localUser;

        public List<User> Users { get => users; set => this.RaiseAndSetIfChanged(ref users, value); }
        public List<User> Users0 { get => users0; set => this.RaiseAndSetIfChanged(ref users0, value); }
        public List<Localuser> LocalListusers { get => localusers; set => this.RaiseAndSetIfChanged(ref localusers, value); }
        public List<Gender> Genders { get => genders; set => this.RaiseAndSetIfChanged(ref genders, value); }
        public string FindText { get => findText; set => this.RaiseAndSetIfChanged(ref findText, value); }
        public Gender FiltGendr { get => filtGendr; set => this.RaiseAndSetIfChanged(ref filtGendr, value); }
        public int IdUser { get => idUser; set => this.RaiseAndSetIfChanged(ref idUser, value); }
        public List<Bitmap> ImageUser { get => imageUser; set => this.RaiseAndSetIfChanged(ref imageUser, value); }
        public List<Dictionary<User, Bitmap>> ListDictionaries { get => listDictionaries; set => this.RaiseAndSetIfChanged(ref listDictionaries, value); }


        public AdminPageViewModel() 
        { 
            Users = myContext.Users.Include(x => x.IdUserNavigation.IdRoleNavigation).Include(x => x.IdGenderNavigation).Include(x => x.IdTraits).ToList();
            int count = 0;
            LocalListusers = RemakeList(users);
            localUser = LocalListusers;
            genders = new List<Gender>
            {
                new Gender() {Gender1 = "Сбросить фильтр", IdGender = 0}
            }.Concat(myContext.Genders).ToList(); FiltGendr = genders[0];
            users0 = users;
            this.WhenAnyValue(x => x.FindText, x => x.FiltGendr).Subscribe(_ => AllFilters());
        }
        public List<Localuser> RemakeList(List<User> users)
        {
            List<Localuser> LocalListusers = new List<Localuser>();
            foreach (var user in users)
            {
                Localuser temp =
                    new Localuser
                    {
                        Name = user.Name,
                        IdGender = user.IdGender,
                        IdGenderNavigation = user.IdGenderNavigation,
                        IdUser = user.IdUser,
                        IdUserNavigation = user.IdUserNavigation,
                        BirthDate = user.BirthDate,
                        IdTraits = user.IdTraits,
                        ConvertImage = user.Image != null ? new Bitmap(new MemoryStream(user.Image)) : new Bitmap("Assets\\ava.png")
                    };
                LocalListusers.Add(temp);
            }
            return LocalListusers;
        }
        public void OnTextFindChanged(string text) => AllFilters();
        public void SortDate(int id)
        {
            switch (id)
            {
                case 1:
                    LocalListusers = LocalListusers.OrderBy(x => x.BirthDate).ToList();
                    break;
                case 2:
                    LocalListusers = LocalListusers.OrderByDescending(x => x.BirthDate).ToList();
                    break;
            }
        }
        public void OnFilterGenderChanged(Gender meaning) => AllFilters();
        void AllFilters()
        {
            LocalListusers = localUser;
            if (!string.IsNullOrEmpty(findText)) LocalListusers = LocalListusers.Where(x => x.Name.Contains(findText)).ToList();
            if (filtGendr != null && filtGendr.IdGender != 0) LocalListusers = LocalListusers.Where(x => x.IdGenderNavigation == filtGendr).ToList();
        }
        public void InfoUsers(int id)
        {
            IdUser = id;
            MainWindowViewModel.Self.UserPageVM = new UserPageViewModel(id);
            MainWindowViewModel.Self.Page = new UserPage();
        }
        public void AddUser()
        {
            MainWindowViewModel.Self.AddUserPageVM = new AddUserPageViewModel();
            MainWindowViewModel.Self.Page = new AddUserPage();
        }
        public void Exit()
        {
            MainWindowViewModel.Self.AuthorizationVM = new AuthorizationViewModel();
            MainWindowViewModel.Self.Page = new Authorization();
        }
    }
}