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);
            }
        }
    }
}