using AutoMapper;
using CommunityToolkit.Mvvm.ComponentModel;
using DMS.Application.DTOs;
using DMS.Application.Interfaces;
using DMS.Core.Models;
using DMS.WPF.Interfaces;
using DMS.WPF.ItemViewModel;
using System.Collections.ObjectModel;
using DMS.Application.Interfaces.Management;
using DMS.Application.Services.Management;

namespace DMS.WPF.Services.ViewService;

/// <summary>
/// 变量数据服务类，负责管理变量表和变量相关的数据和操作。
/// </summary>
public class VariableViewService : IVariableViewService
{
    private readonly IMapper _mapper;
    private readonly IAppDataService _appDataService;
    private readonly IVariableManagementService _variableManagementService;
    private readonly IViewDataService _viewDataService;
    private readonly IAppCenterService _appCenterService;


    /// <summary>
    /// VariableDataService类的构造函数。
    /// </summary>
    /// <param name="mapper">AutoMapper 实例。</param>
    /// <param name="appCenterService">数据服务中心实例。</param>
    public VariableViewService(IMapper mapper, IAppDataService appStorageService,
                               IVariableManagementService variableManagementService, IViewDataService dataStorageService,
                               IAppCenterService appCenterService)
    {
        _mapper = mapper;
        _appDataService = appStorageService;
        _variableManagementService = variableManagementService;
        _viewDataService = dataStorageService;
        _appCenterService = appCenterService;
    }

    /// <summary>
    /// 加载所有变量
    /// </summary>
    public void LoadAllVariables()
    {
        foreach (var variableTable in _viewDataService.VariableTables)
        {
            foreach (var variable in variableTable.Value.Variables)
            {
                _viewDataService.Variables.Add(variable.Id, variable);
            }
        }
    }



    /// <summary>
    /// 添加变量。
    /// </summary>
    public void AddVariable(VariableItem variableItem)
    {
        if (variableItem == null)
        {
            return;
        }

        _viewDataService.Variables.Add(variableItem.Id, variableItem);
    }

    /// <summary>
    /// 添加变量。
    /// </summary>
    public async Task<List<VariableItem>> AddAsync(List<VariableItem> variableItems, VariableTableItem variableTable)
    {

        foreach (var variableDto in variableItems)
        {
            variableDto.IsActive = true;
            variableDto.CreatedAt = DateTime.Now;
            variableDto.UpdatedAt = DateTime.Now;
            variableDto.VariableTableId = variableTable.Id;
        }

        var resVariables = await _variableManagementService.AddAsync(_mapper.Map<List<Variable>>(variableItems));
        
        List<VariableItem> resVariableItems = _mapper.Map<List<VariableItem>>(resVariables);
        foreach (var variableItem in resVariableItems)
        {
            _viewDataService.Variables.TryAdd(variableItem.Id, variableItem);
            variableTable.Variables.Add(variableItem);
            variableItem.VariableTable = variableTable;
        }

        return resVariableItems;
    }


    public async Task<bool> DeleteAsync(List<VariableItem> variableItems)
    {
        List<Variable> deleteList = new List<Variable>();
        foreach (var variable in variableItems)
        {
            if (_appDataService.Variables.TryGetValue(variable.Id, out var mVariable))
            {
                deleteList.Add(mVariable);
            }
        }
        if (!deleteList.Any()) return false;    

        var res=await _variableManagementService.DeleteAsync(deleteList);
        if (res)
        {
            foreach (var variable in deleteList)
            {
                _viewDataService.Variables.Remove(variable.Id);
                variable.VariableTable.Variables.Remove(variable);
            }
        }

        return res;
    }





    public List<VariableItem> CheckExistingVariables(List<VariableItem> importedVariables, DeviceItem device)
    {
        List<VariableItem>? existList = new List<VariableItem>();
        var allVariable = device.VariableTables.SelectMany(vt => vt.Variables);
        foreach (var variable in allVariable)
        {
            foreach (var item in importedVariables)
            {
                var isExist = false;

                if (variable.Protocol == Core.Enums.ProtocolType.S7)
                {
                    isExist = item.Name == variable.Name || item.S7Address == variable.S7Address;
                }else if (variable.Protocol == Core.Enums.ProtocolType.OpcUa)
                {
                    isExist = item.Name == variable.Name || item.OpcUaNodeId == variable.OpcUaNodeId;
                }
                else
                {
                    isExist = item.Name == variable.Name;
                }

                if (isExist)
                {
                    existList.Add(item);
                }
            }
        }

        return existList;
    }
}