using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Threading;
using MembranePoreTester.Communication;

namespace MembranePoreTester
{
    public partial class ParameterWindow : Window
    {
        private readonly IPlcService _plcService;
        private readonly PlcConfiguration _config;
        private DispatcherTimer _autoRefreshTimer;

        // 文本框映射：(文本框, 地址, 参数名, 是否浮点数)
        private readonly List<(TextBox textBox, ushort address, string name, bool isFloat)> _textBoxMapping = new();

        public ParameterWindow()
        {
            InitializeComponent();
            _plcService = App.PlcService;
            _config = App.PlcConfig;

            // 16位整数（灯条、中灯、电机）
            AddMapping(txtUpperLampData1, _config.UpperLampData1, "上灯条数据1", false);
            AddMapping(txtLowerLampData1, _config.LowerLampData1, "下灯条数据1", false);
            AddMapping(txtUpperLampData2, _config.UpperLampData2, "上灯条数据2", false);
            AddMapping(txtLowerLampData2, _config.LowerLampData2, "下灯条数据2", false);
            AddMapping(txtUpperLampData3, _config.UpperLampData3, "上灯条数据3", false);
            AddMapping(txtLowerLampData3, _config.LowerLampData3, "下灯条数据3", false);
            AddMapping(txtUpperLampData4, _config.UpperLampData4, "上灯条数据4", false);
            AddMapping(txtLowerLampData4, _config.LowerLampData4, "下灯条数据4", false);
            AddMapping(txtUpperLampData5, _config.UpperLampData5, "上灯条数据5", false);
            AddMapping(txtLowerLampData5, _config.LowerLampData5, "下灯条数据5", false);
            AddMapping(txtUpperLampData6, _config.UpperLampData6, "上灯条数据6", false);
            AddMapping(txtLowerLampData6, _config.LowerLampData6, "下灯条数据6", false);

            AddMapping(txtMiddleLamp1, _config.MiddleLamp1, "中灯1", false);
            AddMapping(txtMiddleLamp2, _config.MiddleLamp2, "中灯2", false);
            AddMapping(txtMiddleLamp3, _config.MiddleLamp3, "中灯3", false);
            AddMapping(txtMiddleLamp4, _config.MiddleLamp4, "中灯4", false);
            AddMapping(txtMiddleLamp5, _config.MiddleLamp5, "中灯5", false);
            AddMapping(txtMiddleLamp6, _config.MiddleLamp6, "中灯6", false);
            AddMapping(txtMiddleLamp7, _config.MiddleLamp7, "中灯7", false);

            AddMapping(txtMotorLimit, _config.MotorLimit, "电机限位", true);
            AddMapping(txtResetCompensation, _config.ResetCompensation, "复位补偿", true);


            AddMapping(txtLeftEyeAreaCoeff, _config.LeftEyeAreaCoeff, "左眼面积系数", true);
            AddMapping(txtRightEyeAreaCoeff, _config.RightEyeAreaCoeff, "右眼面积系数", true);
            AddMapping(txtSaveRateCorrectionCoeff, _config.SaveRateCorrectionCoeff, "保存率矫正系数", true);

            RegisterTextBoxEvents();

            Loaded += async (s, e) =>
            {
                _autoRefreshTimer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };
                _autoRefreshTimer.Tick += AutoRefreshTimer_Tick;
                _autoRefreshTimer.Start();
                await LoadAllParameters();
            };

            Closed += (s, e) => _autoRefreshTimer?.Stop();
        }

        private void AddMapping(TextBox textBox, ushort address, string name, bool isFloat)
        {
            if (textBox != null)
            {
                _textBoxMapping.Add((textBox, address, name, isFloat));
            }
        }

        private void RegisterTextBoxEvents()
        {
            foreach (var (tb, addr, name, isFloat) in _textBoxMapping)
            {
                tb.LostFocus += async (s, e) =>
                {
                    if (float.TryParse(tb.Text, out float value))
                    {
                        try
                        {
                            if (isFloat)
                                await WriteFloatAsync(addr, value);
                            else
                                await WriteInt16Async(addr, (ushort)value);
                            System.Diagnostics.Debug.WriteLine($"{name} 已写入: {value}");
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show($"写入 {name} 失败: {ex.Message}", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
                        }
                    }
                    else
                    {
                        MessageBox.Show($"请输入有效的数值", "输入错误", MessageBoxButton.OK, MessageBoxImage.Warning);
                        await UpdateSingleParameter(tb, addr, isFloat);
                    }
                };
            }
        }

        private async void AutoRefreshTimer_Tick(object sender, EventArgs e)
        {
            await Dispatcher.InvokeAsync(async () =>
            {
                foreach (var (tb, addr, name, isFloat) in _textBoxMapping)
                {
                    if (!tb.IsFocused)
                    {
                        try
                        {
                            if (isFloat)
                            {
                                float val = await ReadFloatAsync(addr);
                                tb.Text = val.ToString("F3");
                            }
                            else
                            {
                                ushort val = await ReadInt16Async(addr);
                                tb.Text = val.ToString();
                            }
                        }
                        catch (Exception ex)
                        {
                            System.Diagnostics.Debug.WriteLine($"自动刷新 {name} 失败: {ex.Message}");
                        }
                    }
                }
            });
        }

        private async Task UpdateSingleParameter(TextBox tb, ushort addr, bool isFloat)
        {
            try
            {
                if (isFloat)
                {
                    float val = await ReadFloatAsync(addr);
                    tb.Text = val.ToString("F3");
                }
                else
                {
                    ushort val = await ReadInt16Async(addr);
                    tb.Text = val.ToString();
                }
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"更新失败: {ex.Message}");
            }
        }

        private async Task LoadAllParameters()
        {
            foreach (var (tb, addr, name, isFloat) in _textBoxMapping)
            {
                await UpdateSingleParameter(tb, addr, isFloat);
            }
        }

        // 16位整数读写
        private async Task<ushort> ReadInt16Async(ushort address)
        {
            var registers = await ((ModbusTcpPlcService)_plcService).ReadHoldingRegistersAsync(address, 1);
            return registers[0];
        }

        private async Task WriteInt16Async(ushort address, ushort value)
        {
            await ((ModbusTcpPlcService)_plcService).WriteSingleRegisterAsync(address, value);
        }

        // 32位浮点数读写
        private async Task<float> ReadFloatAsync(ushort address)
        {
            var registers = await ((ModbusTcpPlcService)_plcService).ReadHoldingRegistersAsync(address, 2);
            return ((ModbusTcpPlcService)_plcService).UshortToFloat(registers[1], registers[0]);
        }

        private async Task WriteFloatAsync(ushort address, float value)
        {
            await ((ModbusTcpPlcService)_plcService).WriteMultipleRegistersAsync(address, value);
        }
    }
}