using Prism.Commands;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using TeamAAS_VP.Interfaces;
using TeamAAS_VP.Models;
using TeamAAS_VP.Models.Lights;
using TeamAAS_VP.Models.PLC;
using TeamAAS_VP.Resources.Languages;

namespace TeamAAS_VP.ViewModels.Product
{
    public class LightChannelListViewModel : BindableBase, IDialogAware
    {
        private readonly IConfigService _configService;

        private ObservableCollection<ChannelConfigEx> _AllLightChannels;
        public ObservableCollection<ChannelConfigEx> AllLightChannels
        {
            get { return _AllLightChannels; }
            set { SetProperty(ref _AllLightChannels, value); }
        }

        private DelegateCommand _ConfirmCommand;
        public DelegateCommand ConfirmCommand =>
            _ConfirmCommand ?? (_ConfirmCommand = new DelegateCommand(ExecuteConfirmCommand));

        private DelegateCommand _CancelCommand;
        public DelegateCommand CancelCommand =>
            _CancelCommand ?? (_CancelCommand = new DelegateCommand(ExecuteCancelCommand));

        public LightChannelListViewModel(IConfigService configService)
        {
            _configService = configService;
        }

        void ExecuteConfirmCommand()
        {
            //获取所有选择的通道
            var selectedChannels = AllLightChannels.Where(c => c.IsSelected).ToArray();
            //将通道配置扩展转换为通道配置
            ChannelConfig[] Channels = selectedChannels.Select(c => c.ToChannelConfig()).ToArray();

            IDialogParameters parameters = new DialogParameters();
            parameters.Add("Channels", Channels);
            RequestClose?.Invoke(new DialogResult(ButtonResult.OK, parameters));
        }

        /// <summary>
        /// 取消按钮
        /// </summary>
        void ExecuteCancelCommand()
        {
            RequestClose?.Invoke(new DialogResult(ButtonResult.Cancel, null));
        }

        public string Title { get; set; } = "添加机器人";

        public event Action<IDialogResult> RequestClose;

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {

        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            Title = "选择要使用的光源通道";
            ChannelConfig[] channels=parameters.GetValue<ChannelConfig[]>("Channels");

            AllLightChannels =new ObservableCollection<ChannelConfigEx>();
            var allChanels = _configService.GetAllLightChannels();
            foreach (var item in allChanels)
            {
                AllLightChannels.Add(new ChannelConfigEx(item));
            }

            //设置已选择的通道
            foreach (var channel in channels)
            {
                var exist = AllLightChannels.FirstOrDefault(c => c.GlobalIndex == channel.GlobalIndex);
                if (exist != null)
                {
                    exist.IsSelected = true;
                }
            }

        }
    }
}