using System;
using System.Collections.ObjectModel;
using System.Linq;
using AvaloniaApplication14_Inventory_300326.Models.DataBase;
using AvaloniaApplication14_Inventory_300326.Models.Factoryes;
using AvaloniaApplication14_Inventory_300326.Models.Models;
using AvaloniaApplication14_Inventory_300326.Views;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Microsoft.Extensions.DependencyInjection;

namespace AvaloniaApplication14_Inventory_300326.ViewModels;

public partial class EquipmentEditingWindowViewModel : ViewModelBase
{
    private EquipmentEditingWindow _currentWindow;
    private bool _isEditing;
    private EquipmentVisual _equipment;
    private IServiceProvider _serviceProvider;
    
    private EquipmentFactory _equipmentFactory;
    private EquipmentVisualFactory _equipmentVisualFactory;
    
    [ObservableProperty] private string _name;
    [ObservableProperty] private string _invNumber;
    [ObservableProperty] private DateTimeOffset? _date;
    [ObservableProperty] private decimal _cost;
    [ObservableProperty] private bool _isWrittenOff;
    [ObservableProperty] private Employee _currentEmployee;
    [ObservableProperty] private ObservableCollection<Employee> _employees;

    [RelayCommand]
    private void Confrm()
    {
        _equipment.InvNumber = InvNumber;
        _equipment.Date = Date;
        _equipment.Cost = Cost;
        _equipment.IsWrittenOff = IsWrittenOff;
        _equipment.CurrentEmployee = CurrentEmployee;
        _equipment.Name = Name;

        using (var repo = _serviceProvider.GetService<EquipmentRepository>())
        {
            if (_isEditing)
            {
                repo.Update(_equipmentFactory.CreateFromVisual(_equipment));
            }
            else
            {
                repo.Add(_equipmentFactory.CreateFromVisual(_equipment));
            }
        }
        _currentWindow.Close();
    }

    [RelayCommand]
    private void Close()
    {
        _currentWindow.Close();
    }

    public EquipmentEditingWindowViewModel(IServiceProvider serviceProvider, Equipment equipment)
    {
        _serviceProvider = serviceProvider;
        _isEditing = !equipment.IsNew();
        
        _equipmentFactory = _serviceProvider.GetService<EquipmentFactory>();
        _equipmentVisualFactory = _serviceProvider.GetService<EquipmentVisualFactory>();
        
        using (var repo = _serviceProvider.GetService<EmployeeRepository>())
        {
            _equipment = _equipmentVisualFactory.CreateFromEquipment(equipment);
            _equipment.CurrentEmployee = repo.GetById(equipment.CurrentEmployeeId);
        }
        using (var repo = _serviceProvider.GetService<EmployeeRepository>())
        {
            Employees = new ObservableCollection<Employee>(repo.GetAll());
        }

        if (_isEditing)
        {
            Name = _equipment.Name;
            InvNumber = _equipment.InvNumber;
            Date = _equipment.Date;
            Cost = _equipment.Cost;
            IsWrittenOff = _equipment.IsWrittenOff;
            CurrentEmployee = Employees.FirstOrDefault(o => o.Id == equipment.CurrentEmployeeId);
        }
        else
        {
            CurrentEmployee = Employees[0];
            Date = DateTimeOffset.Now;
        }
    }
    public void SetWindow(EquipmentEditingWindow window)
    {
        _currentWindow = window;
        _currentWindow.OkButton.Content = _isEditing ? "Изменить" : "Добавить";
    }
}