using System.Windows.Input;
using MembranePoreTester.Communication;
using System.Threading.Tasks;
using System.Windows;

namespace MembranePoreTester.ViewModels
{
    public class StationViewModel : ViewModelBase
    {
        private readonly IPlcService _plcService;
        private readonly PlcConfiguration _plcConfig;
        private bool _isPressing;
        private string _pressButtonText = "加压";
        private string _highLowPressure = "低压";
        private bool _enableChecked;

        public int StationId { get; set; }

        public BubblePointViewModel BubblePointVM { get; } = new();
        public PoreDistributionViewModel PoreDistributionVM { get; } = new();

        public string HighLowPressure
        {
            get => _highLowPressure;
            set => SetProperty(ref _highLowPressure, value);
        }

        public string PressButtonText
        {
            get => _pressButtonText;
            set => SetProperty(ref _pressButtonText, value);
        }

        public bool EnableChecked
        {
            get => _enableChecked;
            set => SetProperty(ref _enableChecked, value);
        }

        public ICommand PressCommand { get; }
        public ICommand BurstCommand { get; }
        public ICommand StartCommand { get; }
        public ICommand StopCommand { get; }
        public ICommand EnableCommand { get; } // 用于使能复选框

        public StationViewModel()
        {
            _plcService = App.PlcService;
            _plcConfig = App.PlcConfig;
            BubblePointVM.StationId = StationId;
            PoreDistributionVM.StationId = StationId;
            // 初始化按钮文字
            _pressButtonText = "加压";  // 直接设置字段，避免触发属性通知循环
            PressButtonText = "加压";    // 或者通过属性设置
            System.Diagnostics.Debug.WriteLine($"工位{StationId} PressButtonText初始值: {PressButtonText}");
            PressCommand = new RelayCommand(async () => await TogglePressAsync());
            BurstCommand = new RelayCommand(async () => await ReadBurstPressureAsync());
            StartCommand = new RelayCommand(async () => await WriteCoilAsync(_plcConfig.StartCoil, true));
            StopCommand = new RelayCommand(async () => await WriteCoilAsync(_plcConfig.StopCoil, true));
            // 使能复选框点击时写入对应线圈
            EnableCommand = new RelayCommand(async () => await WriteCoilAsync(_plcConfig.EnableCoil, EnableChecked));
        }

        private async Task TogglePressAsync()
        {
            _isPressing = !_isPressing;
            await WriteCoilAsync(_plcConfig.PressCoil, _isPressing);
            PressButtonText = _isPressing ? "停止加压" : "加压";
        }

        private async Task ReadBurstPressureAsync()
        {
            try
            {
                float pressure = await ((ModbusTcpPlcService)_plcService).ReadPressureAsync(StationId);
                BubblePointVM.UpdateBubblePointPressure(pressure * _plcConfig.PressureFactor);
                MessageBox.Show($"涨破压力: {pressure} {BubblePointVM.Record.PressureUnit}", "提示");
            }
            catch (Exception ex)
            {
                MessageBox.Show($"读取压力失败: {ex.Message}");
            }
        }

        private async Task WriteCoilAsync(ushort coil, bool value)
        {
            try
            {
                await ((ModbusTcpPlcService)_plcService).WriteCoilAsync(coil, value);
            }
            catch (Exception ex)
            {
                MessageBox.Show($"写线圈失败: {ex.Message}");
            }
        }
    }
}