using guoke;
using System.Windows;
using WpfApp.src.components;

namespace WpfApp.Services;

/// <summary>
/// SensorChart 管理器 - 负责传感器数据采集和更新
/// </summary>
public class SensorChartManager
{
    private readonly Window dispatcherOwner;
    private CancellationTokenSource cts;
    private readonly Random rand = new Random();
    private readonly LogService log;
    private readonly DatabaseService db;
    private readonly EventService<GeneralEventArgs> even;

    // 事件名称常量
    private const string SENSOR_DATA_EVENT = "SensorDataUpdate";


    // 绑定的传感器控件
    public SensorChart Sensor1 { get; set; }
    public SensorChart Sensor2 { get; set; }
    public SensorChart Sensor3 { get; set; }

    public SensorChartManager(Window owner, LogService logService, DatabaseService databaseService, EventService<GeneralEventArgs> eventService)
    {
        dispatcherOwner = owner;
        log = logService;
        db = databaseService;
        even = eventService;
    }

    /// <summary>
    /// 启动模拟数据采集
    /// </summary>
    public void Start()
    {
        if (Sensor1 == null || Sensor2 == null || Sensor3 == null)
            throw new InvalidOperationException("请先绑定传感器控件");

        cts = new CancellationTokenSource();

        Task.Run(async () =>
        {
            while (!cts.Token.IsCancellationRequested)
            {
                // 模拟数据
                double s1 = rand.NextDouble() * 100 - 50;
                double s2 = rand.NextDouble() * 100 - 50;
                double s3 = rand.NextDouble() * 100 - 50;

                // 更新 UI
                dispatcherOwner.Dispatcher.Invoke(() =>
                {
                    Sensor1.SetSensorData("传感器1", s1);
                    Sensor2.SetSensorData("传感器2", s2);
                    Sensor3.SetSensorData("传感器3", s3);
                    
                    // 通过事件将传感器数据传递到ChartManager
                    PublishSensorData("传感器1", s1, "myChart1");
                    PublishSensorData("传感器2", s2, "myChart2");
                    PublishSensorData("传感器3", s3, "myChart3");
                });

                await Task.Delay(1000); // 每1000毫秒采集一次
            }
        }, cts.Token);
    }

    /// <summary>
    /// 停止采集
    /// </summary>
    public void Stop()
    {
        cts?.Cancel();
    }

    /// <summary>
    /// 发布传感器数据事件
    /// </summary>
    /// <param name="sensorTitle">传感器标题</param>
    /// <param name="sensorValue">传感器值</param>
    /// <param name="chartTitle">图表标题</param>
    private void PublishSensorData(string sensorTitle, double sensorValue, string chartTitle)
    {
        if (even != null)
        {
            var eventArgs = new SensorDataEventArgs(sensorTitle, sensorValue, chartTitle);
            even.TriggerEvent(SENSOR_DATA_EVENT, this, eventArgs);
        }
    }
}