using BOB;
using MahApps.Metro.Controls;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.IO;
using System.Reflection.Metadata;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Threading;

namespace ProcessManager.ViewModels
{
    public class PMainViewModel:BindableBase
    {
        private ObservableCollection<SystemConfig> _configList;

        public ObservableCollection<SystemConfig> ConfigList
        {
            get => _configList;
            set => SetProperty(ref _configList, value);
        }

        private readonly IDialogService _dialogService;
        private Dictionary<string, Process> ProcessDic { get; set; } = new Dictionary<string, Process>();
        public ICommand StartCommand { get; set; }
        public ICommand EditCommand { get; set; }
        public ICommand WindowLoadedCommand { get; set; }
        public PMainViewModel(IDialogService dialogService)
        {
            _dialogService = dialogService;
            EditCommand=new DelegateCommand<string>(OnEdit);
            StartCommand = new DelegateCommand<string>(OnStart);     
            WindowLoadedCommand = new DelegateCommand(OnWindowLoaded); 
        }

        private void OnWindowLoaded()
        {
            if (ConfigList != null) ConfigList.Clear();
            var JSONFiles = Directory.GetFiles(JsonHelper.SystemPath, "*.json");
            foreach(var file in JSONFiles)
            {
                JsonHelper.ConfigFile = file;
                var config = JsonHelper.LoadFromFile();
                if(ConfigList==null)
                {
                    ConfigList = new ObservableCollection<SystemConfig>();
                }
                ConfigList.Add(config);
            }   
        }

        private void OnStart(string deviceName)
        {
            if (ProcessDic.ContainsKey(deviceName))
            {
                MessageBox.Show("进程已启动");
                return;
            }
            try
            {
                string currentDir = Environment.CurrentDirectory;
                string exePath = Path.Combine(currentDir, "BOB.exe");
                if (!File.Exists(exePath))
                {
                    MessageBox.Show($"未找到文件: {exePath}");
                    return;
                }
                ProcessStartInfo startInfo = new ProcessStartInfo
                {
                    FileName = exePath,
                    Arguments = deviceName,
                    UseShellExecute = true
                };
                var configToSave = ConfigList.FirstOrDefault(x => x.Title == deviceName);
                if (configToSave != null)
                {
                    JsonHelper.ConfigFile = Path.Combine(JsonHelper.SystemPath, $"{deviceName}.json");
                    JsonHelper.SaveToFile(configToSave);
                }
                var process = Process.Start(startInfo);
                process.EnableRaisingEvents = true;
                process.Exited += (s, args) =>
                {
                    ProcessDic.Remove(deviceName);
                    Application.Current.Dispatcher.Invoke(() =>
                    {
                        OnWindowLoaded();
                    });
                };
                ProcessDic.Add(deviceName, process);
            }
            catch (Exception ex)
            {
                MessageBox.Show($"启动失败: {ex.Message}");
            }
        }

        private void OnEdit(string deviceName)
        {
            if (ProcessDic.ContainsKey(deviceName))
            {
                MessageBox.Show("请先关闭进程再进行编辑");
                return;
            }
            JsonHelper.ConfigFile = Path.Combine(JsonHelper.SystemPath, $"{deviceName}.json");
            var ConfigSystem = JsonHelper.LoadFromFile();
            var parameters = new DialogParameters
            {
                { "SystemConfig", ConfigSystem },
                { "Title", deviceName }
            };

            _dialogService.ShowDialog("Setting", parameters, r =>
            {
                if (r.Result == ButtonResult.OK)
                {
                    // 用户点击 OK
                }
            });
        }
    }
}