using AutoMapper;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using DMS.Application.DTOs;
using DMS.Application.Interfaces;
using DMS.Application.Interfaces.Database;
using DMS.Core.Enums;
using DMS.Core.Models;
using DMS.Infrastructure.Entities;
using DMS.WPF.Interfaces;
using DMS.WPF.ItemViewModel;
using DMS.WPF.Services;
using DMS.WPF.ViewModels.Dialogs;
using iNKORE.UI.WPF.Modern.Common.IconKeys;
using Microsoft.Extensions.DependencyInjection;
using ObservableCollections;
using System.Collections.ObjectModel;

namespace DMS.WPF.ViewModels;

/// <summary>
/// 设备管理视图模型，负责设备的增删改查操作。
/// </summary>
public partial class DevicesViewModel : ViewModelBase, INavigatable
{
    private readonly IViewCenterService _wpfDataService;
    private readonly IDeviceAppService _deviceAppService;
    private readonly IMapper _mapper;
    private readonly IViewDataService _viewDataService;
    private readonly IDialogService _dialogService;
    private readonly INavigationService _navigationService;


    /// <summary>
    /// 设备列表。
    /// </summary>
    [ObservableProperty]
    private INotifyCollectionChangedSynchronizedViewList<DeviceItem> _devices;


    /// <summary>
    /// 当前选中的设备。
    /// </summary>
    [ObservableProperty]
    private DeviceItem _selectedDevice;

    private readonly INotificationService _notificationService;

    /// <summary>
    /// 初始化 <see cref="DevicesViewModel"/> 类的新实例。
    /// </summary>
    /// <param name="mapper">对象映射器。</param>
    /// <param name="dataStorageService">数据存储服务。</param>
    /// <param name="dialogService">对话框服务。</param>
    /// <param name="navigationService">导航服务。</param>
    /// <param name="wpfDataService">主数据服务。</param>
    /// <param name="deviceAppService">设备应用服务。</param>
    /// <param name="notificationService">通知服务。</param>
    public DevicesViewModel(IMapper mapper, IViewDataService dataStorageService,
                            IDialogService dialogService, INavigationService navigationService,
                            IViewCenterService wpfDataService, IDeviceAppService deviceAppService,
                            INotificationService notificationService)
    {
        _mapper = mapper;
        _viewDataService = dataStorageService;
        _dialogService = dialogService;
        _navigationService = navigationService;
        _wpfDataService = wpfDataService;
        _deviceAppService = deviceAppService;
        _notificationService = notificationService;
        Devices = _viewDataService.Devices.ToNotifyCollectionChanged(x => x.Value);
    }


    /// <summary>
    /// 添加设备命令。
    /// </summary>
    [RelayCommand]
    public async Task AddDevice()
    {
        try
        {
            // 1. 显示添加设备对话框
            DeviceItem device = await _dialogService.ShowDialogAsync(new DeviceDialogViewModel()
            {
                Title = "添加设备",
                PrimaryButText = "添加设备"
            });
            // 如果用户取消或对话框未返回设备，则直接返回
            if (device == null)
            {
                return;
            }


            CreateDeviceWithDetailsDto dto = new CreateDeviceWithDetailsDto();
            // 添加null检查
            if (_mapper != null)
            {
                dto.Device = _mapper.Map<Device>(device);
            }
            else
            {
                _notificationService?.ShowError("映射服务未初始化");
                return;
            }


            dto.DeviceMenu = new MenuBean()
            {
                Header = device.Name,
                Icon = SegoeFluentIcons.Devices2.Glyph,
                TargetViewKey = nameof(DeviceDetailViewModel),
            };

            if (device.IsAddDefVarTable)
            {
                dto.VariableTable = new VariableTable()
                {
                    Name = "默认变量表",
                    Description = "默认变量表",
                    IsActive = true
                };
                dto.VariableTableMenu = new MenuBean()
                {
                    Header = dto.VariableTable.Name,
                    Icon = SegoeFluentIcons.DataSense.Glyph,
                    TargetViewKey = nameof(VariableTableViewModel)
                };
            }


            // 添加设备
            // 添加null检查
            if (_wpfDataService != null && _wpfDataService.DeviceDataService != null)
            {
                var addDto = await _wpfDataService.DeviceDataService.AddDeviceAsync(dto);

                // 添加null检查
                if (addDto != null && addDto.Device != null && _notificationService != null)
                {
                    _notificationService.ShowSuccess($"设备添加成功：{addDto.Device.Name}");

                }
                else if (_notificationService != null)
                {
                    _notificationService.ShowError("设备添加失败");
                }
            }
            else if (_notificationService != null)
            {
                _notificationService.ShowError("数据服务未初始化");
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            // 添加null检查
            if (_notificationService != null)
            {
                _notificationService.ShowError($"添加设备的过程中发生错误：{e.Message}", e);
            }
        }
    }

    /// <summary>
    /// 删除设备命令。
    /// </summary>
    [RelayCommand]
    private async Task DeleteDevice(DeviceItem parmDeviceItem)
    {
        try
        {
            if (parmDeviceItem != null)
            {
                SelectedDevice = parmDeviceItem;
            }
            if (SelectedDevice == null)
            {
                _notificationService.ShowError("你没有选择任何设备，请选择设备后再点击删除设备");
                return;
            }

            var viewModel = new ConfirmDialogViewModel("删除设备", $"确认要删除设备名为:{SelectedDevice.Name}", "删除设备");
            if (await _dialogService.ShowDialogAsync(viewModel))
            {
                var deviceName = SelectedDevice.Name;
                if (await _wpfDataService.DeviceDataService.DeleteAsync(SelectedDevice))
                {
                    _notificationService.ShowSuccess($"删除设备成功,设备名：{deviceName}");
                }
            }
        }
        catch (Exception e)
        {
            _notificationService.ShowError($"删除设备的过程中发生错误：{e.Message}", e);
        }
    }

    /// <summary>
    /// 编辑设备命令。
    /// </summary>
    [RelayCommand]
    private async Task EditDevice()
    {
        try
        {

            if (SelectedDevice == null)
            {
                _notificationService.ShowError("你没有选择任何设备，请选择设备后再点击编辑设备");
                return;
            }

            DeviceDialogViewModel deviceDialogViewModel = new DeviceDialogViewModel(SelectedDevice)
            {
                PrimaryButText = "编辑设备"
            };
            // 1. 显示设备对话框
            DeviceItem device = await _dialogService.ShowDialogAsync(deviceDialogViewModel);
            // 如果用户取消或对话框未返回设备，则直接返回
            if (device == null)
            {
                return;
            }

            if (await _wpfDataService.DeviceDataService.UpdateDevice(device))
            {
                _notificationService.ShowSuccess($"编辑设备成功：{device.Name}");
            }
        }
        catch (Exception e)
        {
            _notificationService.ShowError($"编辑设备的过程中发生错误：{e.Message}", e);
        }
    }

    [RelayCommand]
    public void NavigateToDetail()
    {
        if (SelectedDevice == null) return;

        _navigationService.NavigateToAsync(this, new NavigationParameter(nameof(DeviceDetailViewModel), SelectedDevice.Id, NavigationType.Device));
    }


    [RelayCommand]
    private async Task AddVariableTable(DeviceItem device)
    {
        try
        {
            if (device is null) return;
            DeviceDetailViewModel deviceDetailViewModel = App.Current.Services.GetRequiredService<DeviceDetailViewModel>();
            if (deviceDetailViewModel is null) return;
            deviceDetailViewModel.AddVariableTableCommand.Execute(device);

        }
        catch (Exception e)
        {
            _notificationService.ShowError($"添加变量表的过程中发生错误：{e.Message}", e);
        }

    }

    [RelayCommand]
    private async Task EditVariableTable(VariableTableItem variableTable)
    {
        if (variableTable == null)
        {
            _notificationService.ShowError("你没有选择任何变量表，请选择变量表后再点击编辑变量表");
            return;
        }

        try
        {
            DeviceDetailViewModel deviceDetailViewModel = App.Current.Services.GetRequiredService<DeviceDetailViewModel>();
            if (deviceDetailViewModel is null) return;
            deviceDetailViewModel.EditVariableTableCommand.Execute(variableTable);
        }
        catch (Exception e)
        {
            _notificationService.ShowError($"编辑变量表的过程中发生错误：{e.Message}", e);
        }
    }

    [RelayCommand]
    private async Task DeleteVariableTable(VariableTableItem variableTable)
    {
        if (variableTable is null)
        {
            _notificationService.ShowError("你没有选择任何变量表，请选择变量表后再点击删除变量表");
            return;
        }

        try
        {
            DeviceDetailViewModel deviceDetailViewModel = App.Current.Services.GetRequiredService<DeviceDetailViewModel>();
            if (deviceDetailViewModel is null) return;
            deviceDetailViewModel.DeleteVariableTableCommand.Execute(variableTable);
        }
        catch (Exception e)
        {
            _notificationService.ShowError($"删除变量表的过程中发生错误：{e.Message}", e);
        }
    }

    private void OnDeviceIsActiveChanged(object? sender, bool isActive)
    {
        if (sender is DeviceItem DeviceItem)
        {
        }
    }
}