BPASmartClient/BPASmartClient.FoodStationTest/ViewModel/NewMaterialViewModel.cs

using BPASmartClient.CustomResource.Pages.Model;
using BPASmartClient.Helper;
using BPASmartClient.Model;
using Microsoft.Toolkit.Mvvm.ComponentModel;
using Microsoft.Toolkit.Mvvm.Input;
using System;
using System.Collections.ObjectModel;
using System.Linq;

namespace BPASmartClient.FoodStationTest.ViewModel;

public class NewMaterialViewModel : ObservableObject
{
    public ObservableCollection<RawMaterialModel> Materials { get; set; } = Json<LocaMaterial>.Data.LocalMaterails;

    public string MaterialName { get { return _materialName; } set { _materialName = value; OnPropertyChanged(); } }
    private string _materialName = string.Empty;

    public string ErrorInfo { get { return _mErrorInfo; } set { _mErrorInfo = value; OnPropertyChanged(); } }
    private string _mErrorInfo;

    public RelayCommand<object> RemoveCommand { get; set; }

    public RelayCommand SaveCommand { get; set; }



    private void Remove(object o)
    {
        if (o == null)
            return;
        if (o is string id)
        {
            var res = Materials.FirstOrDefault(p => p.RawMaterialId == id);
            Materials.Remove(res);
            Json<LocaMaterial>.Save();
            MessageNotify.GetInstance.ShowUserLog($"删除原料--{res.RawMaterialName}");
        }
    }

    public NewMaterialViewModel()
    {
        RemoveCommand = new RelayCommand<object>(Remove);

        SaveCommand = new RelayCommand(() =>
        {
            if (MaterialName == String.Empty)
            { ErrorInfo = "原料名称不能为空"; return; }
            if (Global.DeviceRawMaterials.FirstOrDefault(p => p.RawMaterialName == MaterialName) != null)
            { ErrorInfo = "设备中已存在该原料名称"; return; }
            if (Json<LocaMaterial>.Data.LocalMaterails.FirstOrDefault(p => p.RawMaterialName == MaterialName) != null)
            { ErrorInfo = "本地原料名称重复"; return; }
            Json<LocaMaterial>.Data.LocalMaterails.Add(new RawMaterialModel { RawMaterialName = MaterialName, RawMaterialId = Guid.NewGuid().ToString(), RawMaterialSource = 0 });
            Json<LocaMaterial>.Save();
            MessageNotify.GetInstance.ShowUserLog($"添加原料--{MaterialName}");
        });
    }
}