using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using RIZO.Service.PLC;
using S7.Net;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace RIZO.Service.PLCBackground
{


    public class PlcPollingServiceOP72 : BackgroundService
    {
        private readonly ILogger<PlcPollingServiceOP72> _logger;
        private PlcService _plcService;
        private readonly TimeSpan _pollingInterval = TimeSpan.FromSeconds(5);
        private readonly string _ipAddress = "192.168.0.1";
        private readonly CpuType _cpuType = CpuType.S71500;

        public PlcPollingServiceOP72(ILogger<PlcPollingServiceOP72> logger)
        {
            _logger = logger;
        }



        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _logger.LogInformation("PLC Polling Service started");

            // 使用工厂方法创建服务实例
            using (_plcService = new PlcService(_ipAddress, _cpuType))
            {
                while (!stoppingToken.IsCancellationRequested)
                {
                    try
                    {
                        // 使用异步读写方法
                        var data1 = await _plcService.ReadAsync("DB1.DBW0");
                        var data2 = await _plcService.ReadAsync("DB1.DBD4");
                        var flag = await _plcService.ReadAsync("M10.0");

                        _logger.LogInformation($"DB1.DBW0: {data1}, DB1.DBD4: {data2}, M10.0: {flag}");

                        await _plcService.WriteAsync("DB1.DBW10", (short)123);
                        await _plcService.WriteAsync("DB1.DBD20", 45.67d);

                        await Task.Delay(_pollingInterval, stoppingToken);
                    }
                    catch (OperationCanceledException)
                    {
                        _logger.LogInformation("PLC Polling Service is stopping");
                        break;
                    }
                    catch (Exception ex)
                    {
                        _logger.LogError(ex, "PLC polling error");
                        await Task.Delay(TimeSpan.FromSeconds(10), stoppingToken);
                    }
                }
            }

            _logger.LogInformation("PLC Polling Service stopped");
        }


    }
}