using Quartz;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using IStation.Untity;

namespace IStation.DataDockingSocket
{
    /// <summary>
    /// Modbus辅助类 
    /// </summary>
    public class SendInstructionJobHelper
    {
        private static IScheduler _sched;//调度器

        /// <summary>
        /// 开始任务
        /// </summary>
        public static async void StartJob(Model.IMonitorDataDockingSession session, QueryInstructionItem item)
        {
            if (session == null)
                return;
            if (!session.IsConnected)
                return;
            if (item == null)
                return;
            if (string.IsNullOrEmpty(item.Content))
                return;

            NtLogHelper.Info($"{session.SessionName} 开始处理发送指令任务，指令:{item.Content} !");

            var jobName = SendInstructionJobNameHelper.GetJobName(session, item.Name);
            var jobGroupName = SendInstructionJobNameHelper.GetJobGroupName(session, item.Name);
            var triggerName = SendInstructionJobNameHelper.GetTriggerName(session, item.Name);

            //判断是否存在
            if (_sched != null)
            {
                var triggerKey = new TriggerKey(triggerName, jobGroupName);
                if (await _sched.CheckExists(triggerKey))
                {
                    NtLogHelper.Info($"{session.SessionName} 中，指令：{item.Content} 的主动请求数据任务已经开启，无需重复开启！");
                    return;
                }
            }

            //判断是否开启调取器
            if (_sched == null)
            {
                // 1.创建scheduler的引用
                var fac = new Quartz.Impl.StdSchedulerFactory();
                _sched = await fac.GetScheduler();

                //2.启动 scheduler
                await _sched.Start();
            }

            //3.创建任务
            var job = JobBuilder.Create<SendInstructionJob>()
             .WithIdentity(jobName, jobGroupName)
             .Build();
            job.JobDataMap.Put(SendInstructionJob.Session, session);
            job.JobDataMap.Put(SendInstructionJob.Instruction, BitTransfer.FromString(item.Content));

            //4.创建Trigger
            var trigger = TriggerBuilder.Create()
            .WithIdentity(triggerName, jobGroupName)
            .WithSimpleSchedule(x => x.WithIntervalInSeconds(item.Frequency).RepeatForever()
            .WithMisfireHandlingInstructionNextWithRemainingCount())
            .Build();

            //5.加入调度管理器
            await _sched.ScheduleJob(job, trigger);
            session.SessionClosedEvent += () => CancelJob(session, item);
            NtLogHelper.Info($"{session.SessionName} 中，指令:{item.Content}  的主动请求数据线程开启成功！");
        }

        /// <summary>
        /// 取消任务
        /// </summary>
        private static async void CancelJob(Model.IMonitorDataDockingSession session, QueryInstructionItem item)
        {
            if (_sched == null)
                return;
            NtLogHelper.Info($"{session.SessionName}  正打算终止主动请求数据任务");
            var triggerName = SendInstructionJobNameHelper.GetTriggerName(session, item.Name);
            var jobGroupName = SendInstructionJobNameHelper.GetJobGroupName(session, item.Name);
            var triggerKey = new TriggerKey(triggerName, jobGroupName);
            if (await _sched.CheckExists(triggerKey))
            {
                await _sched.UnscheduleJob(triggerKey);
                NtLogHelper.Info($"{session.SessionName},指令:{item.Name}  主动请求数据任务终止成功");
            }
            else
            {
                NtLogHelper.Info($"{session.SessionName},指令:{item.Name}  主动请求数据任务不存在");
            }
        }




    }
}