using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using HME_MoistureLossMeter.Services;
using System.Threading.Tasks;
using System.Windows;
using Serilog;

namespace HME_MoistureLossMeter.ViewModels
{
    public partial class ManualControlViewModel : ViewModelBase
    {
        private readonly IPlcService _plcService;

        [ObservableProperty]
        private float _manualSpeed;

        [ObservableProperty]
        private float _tidalCoeff;

        [ObservableProperty]
        private float _freqCoeff;

        [ObservableProperty]
        private bool _isConnected;

        public ManualControlViewModel(IPlcService plcService)
        {
            _plcService = plcService;

            // 启动时读取参数
            Task.Run(async () => await ReadParameters());
        }

        private async Task ReadParameters()
        {
            try
            {
                if (!_plcService.IsConnected)
                    await _plcService.EnsureConnectedAsync();

                ManualSpeed = await _plcService.ReadFloatAsync(ModbusTcpPlcService.ADDR_MANUAL_SPEED);
                TidalCoeff = await _plcService.ReadFloatAsync(ModbusTcpPlcService.ADDR_TIDAL_COEFF);
                FreqCoeff = await _plcService.ReadFloatAsync(ModbusTcpPlcService.ADDR_FREQ_COEFF);
                IsConnected = true;
                StatusMessage = "参数读取成功";
            }
            catch (Exception ex)
            {
                IsConnected = false;
                StatusMessage = $"读取参数失败: {ex.Message}";
                Log.Error(ex, "读取手动参数失败");
            }
        }

        [RelayCommand]
        private async Task SaveParameters()
        {
            try
            {
                IsBusy = true;
                await _plcService.WriteMultipleRegistersAsync(ModbusTcpPlcService.ADDR_MANUAL_SPEED, ManualSpeed);
                await _plcService.WriteMultipleRegistersAsync(ModbusTcpPlcService.ADDR_TIDAL_COEFF, TidalCoeff);
                await _plcService.WriteMultipleRegistersAsync(ModbusTcpPlcService.ADDR_FREQ_COEFF, FreqCoeff);
                StatusMessage = "参数保存成功";
                Log.Information("手动参数已保存");
            }
            catch (Exception ex)
            {
                StatusMessage = $"保存参数失败: {ex.Message}";
                Log.Error(ex, "保存手动参数失败");
                MessageBox.Show($"保存参数失败: {ex.Message}", "错误",
                    MessageBoxButton.OK, MessageBoxImage.Error);
            }
            finally
            {
                IsBusy = false;
            }
        }

        [RelayCommand]
        private async Task ManualInhale()
        {
            await ExecuteCoilCommand(ModbusTcpPlcService.COIL_MANUAL_INHALE, "手动吸气");
        }

        [RelayCommand]
        private async Task ManualExhale()
        {
            await ExecuteCoilCommand(ModbusTcpPlcService.COIL_MANUAL_EXHALE, "手动呼气");
        }

        [RelayCommand]
        private async Task MoveLeft()
        {
            await ExecuteCoilCommand(ModbusTcpPlcService.COIL_LEFT, "左移");
        }

        [RelayCommand]
        private async Task MoveRight()
        {
            await ExecuteCoilCommand(ModbusTcpPlcService.COIL_RIGHT, "右移");
        }

        [RelayCommand]
        private async Task MoveUp()
        {
            await ExecuteCoilCommand(ModbusTcpPlcService.COIL_UP, "上升");
        }

        [RelayCommand]
        private async Task MoveDown()
        {
            await ExecuteCoilCommand(ModbusTcpPlcService.COIL_DOWN, "下降");
        }

        [RelayCommand]
        private async Task ZeroCalibration()
        {
            try
            {
                IsBusy = true;
                await _plcService.WriteCoilAsync(ModbusTcpPlcService.COIL_ZERO, true);
                StatusMessage = "校零已触发";
                Log.Information("校零触发");

                // 等待完成后自动复位
                await Task.Delay(2000);
                await _plcService.WriteCoilAsync(ModbusTcpPlcService.COIL_ZERO, false);
                StatusMessage = "校零完成";
            }
            catch (Exception ex)
            {
                StatusMessage = $"校零失败: {ex.Message}";
                Log.Error(ex, "校零失败");
                MessageBox.Show($"校零失败: {ex.Message}", "错误",
                    MessageBoxButton.OK, MessageBoxImage.Error);
            }
            finally
            {
                IsBusy = false;
            }
        }

        private async Task ExecuteCoilCommand(ushort coilAddress, string commandName)
        {
            try
            {
                IsBusy = true;
                await _plcService.WriteCoilAsync(coilAddress, true);
                StatusMessage = $"{commandName}已执行";
                Log.Information("{Command}执行", commandName);

                // 短暂延迟后自动复位
                await Task.Delay(200);
                await _plcService.WriteCoilAsync(coilAddress, false);
            }
            catch (Exception ex)
            {
                StatusMessage = $"{commandName}失败: {ex.Message}";
                Log.Error(ex, "{Command}失败", commandName);
                MessageBox.Show($"{commandName}失败: {ex.Message}", "错误",
                    MessageBoxButton.OK, MessageBoxImage.Error);
            }
            finally
            {
                IsBusy = false;
            }
        }

        [RelayCommand]
        private async Task RefreshParameters()
        {
            await ReadParameters();
        }
    }
}