using DeviceCommand.Devices;
using Prism.Commands;
using Prism.Ioc;
using System;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Input;
using UIShare.GlobalVariable;
using UIShare.ViewModelBase;

namespace DeviceEditModule.ViewModels
{
    /// <summary>
    /// MCc30W 水冷机一拖三 控制面板 ViewModel
    /// </summary>
    public class MCc30WViewModel : NavigateViewModelBase, IDisposable
    {
        private readonly DeviceManager _dm;
        private MCc30W? _dev;
        private CancellationTokenSource? _cts;

        private string _deviceName = "MCc30W";
        public string DeviceName { get => _deviceName; set => SetProperty(ref _deviceName, value); }
        private bool _isConnected;
        public bool IsConnected { get => _isConnected; set => SetProperty(ref _isConnected, value); }
        private bool _isBusy;
        public bool IsBusy { get => _isBusy; set => SetProperty(ref _isBusy, value); }

        #region 输入参数
        private int _loop = 1; public int Loop { get => _loop; set => SetProperty(ref _loop, value); }
        private float _tempSet = 25f; public float TempSet { get => _tempSet; set => SetProperty(ref _tempSet, value); }
        private float _flowSet = 10f; public float FlowSet { get => _flowSet; set => SetProperty(ref _flowSet, value); }
        private float _pressSet = 100f; public float PressSet { get => _pressSet; set => SetProperty(ref _pressSet, value); }
        #endregion

        #region 测量结果
        private float _currentTemp;
        public float CurrentTemp { get => _currentTemp; set => SetProperty(ref _currentTemp, value); }
        private float _currentFlow;
        public float CurrentFlow { get => _currentFlow; set => SetProperty(ref _currentFlow, value); }
        private float _currentPress;
        public float CurrentPress { get => _currentPress; set => SetProperty(ref _currentPress, value); }
        private uint _alarmInfo;
        public uint AlarmInfo { get => _alarmInfo; set => SetProperty(ref _alarmInfo, value); }
        private string _responseLog = "";
        public string ResponseLog { get => _responseLog; set => SetProperty(ref _responseLog, value); }
        #endregion

        #region 命令
        public ICommand LoopOn { get; } public ICommand LoopOff { get; }
        public ICommand SetTemp { get; } public ICommand SetFlow { get; } public ICommand SetPress { get; }
        public ICommand AlarmReset { get; } public ICommand AlarmSilence { get; }
        public ICommand ReadAll { get; } public ICommand ReadAlarm { get; }
        #endregion

        public MCc30WViewModel(IContainerProvider cp) : base(cp)
        {
            _dm = cp.Resolve<DeviceManager>();
            LoopOn = new DelegateCommand(async () => await Exec(async () => { await _dev!.设置回路运行Async(Loop, true, Ct()); Log($"回路{Loop}已启动"); }));
            LoopOff = new DelegateCommand(async () => await Exec(async () => { await _dev!.设置回路运行Async(Loop, false, Ct()); Log($"回路{Loop}已停止"); }));
            SetTemp = new DelegateCommand(async () => await Exec(async () => { await _dev!.设置出液目标温度Async(Loop, TempSet, Ct()); Log($"回路{Loop}温度={TempSet}℃"); }));
            SetFlow = new DelegateCommand(async () => await Exec(async () => { await _dev!.设置出液目标流量Async(Loop, FlowSet, Ct()); Log($"回路{Loop}流量={FlowSet}L/min"); }));
            SetPress = new DelegateCommand(async () => await Exec(async () => { await _dev!.设置出液目标压力Async(Loop, PressSet, Ct()); Log($"回路{Loop}压力={PressSet}kPa"); }));
            AlarmReset = new DelegateCommand(async () => await Exec(async () => { await _dev!.报警复位Async(true, Ct()); await _dev!.报警复位Async(false, Ct()); Log("报警已复位"); }));
            AlarmSilence = new DelegateCommand(async () => await Exec(async () => { await _dev!.报警消音Async(true, Ct()); Log("报警已消音"); }));
            ReadAll = new DelegateCommand(async () => await Exec(async () =>
            {
                CurrentTemp = await _dev!.读取出液当前温度Async(Loop, Ct());
                CurrentFlow = await _dev!.读取出液当前流量Async(Loop, Ct());
                CurrentPress = await _dev!.读取出液当前压力Async(Loop, Ct());
                Log($"回路{Loop}→T:{CurrentTemp}℃ F:{CurrentFlow}L/min P:{CurrentPress}kPa");
            }));
            ReadAlarm = new DelegateCommand(async () => await Exec(async () => { AlarmInfo = await _dev!.读报警信息1Async(Ct()); Log($"报警信息={AlarmInfo}"); }));
            Initialize();
        }

        #region 初始化 / Navigation

        public void Initialize(string? deviceName = null)
        {
            MCc30W? found = null; string? fn = null;
            if (deviceName != null && _dm.DeviceMap.TryGetValue(deviceName, out var d) && d is MCc30W e)
            { found = e; fn = deviceName; }
            else
            {
                foreach (var kv in _dm.DeviceMap)
                    if (kv.Value is MCc30W it) { found = it; fn = kv.Key; break; }
            }
            _dev = found;
            DeviceName = fn ?? "MCc30W (未找到)";
            IsConnected = _dev?.IsConnected ?? false;
            Log(found != null
                ? $"已关联设备 [{DeviceName}]，连接:{(IsConnected ? "已连接" : "未连接")}"
                : "未在 DeviceManager 中找到 MCc30W 设备");
        }

        public override void OnNavigatedTo(NavigationContext context)
        {
            var pName = context.Parameters.GetValue<string?>("DeviceName");
            Initialize(pName);
        }

        #endregion

        #region 辅助

        private CancellationToken Ct() => (_cts = new CancellationTokenSource(TimeSpan.FromSeconds(10))).Token;

        private async Task Exec(Func<Task> action)
        {
            if (_dev == null) { Log("错误：未关联到设备实例，请检查设备配置。"); return; }
            if (IsBusy) return;
            IsBusy = true;
            try
            {
                await action();
                IsConnected = _dev.IsConnected;
            }
            catch (OperationCanceledException) { Log("命令超时或已取消。"); }
            catch (Exception ex) { Log($"错误：{ex.Message}"); }
            finally { IsBusy = false; }
        }

        private void Log(string message)
        {
            var line = $"[{DateTime.Now:HH:mm:ss}] {message}";
            ResponseLog = ResponseLog.Length > 4000
                ? line + "\n" + ResponseLog[..3000]
                : line + "\n" + ResponseLog;
        }

        #endregion

        public void Dispose()
        {
            _cts?.Cancel();
            _cts?.Dispose();
        }
    }
}