/// <summary>
/// 重置超过1小时还未被读取的记录
/// </summary>
/// <param name="bll"></param>
private void ResetTimeoutTrackerChats(TrackerChatBLL bll)
{
bll.Update(u => u.Status == (byte)TrackerChatStatus.Timeout && u.ScheduleTime < DateTime.Now.AddMinutes(-60), act =>
{
act.ScheduleTime = DateTime.Now;
act.Status = (byte)TrackerChatStatus.Waiting;
});
}
/// <summary>
/// 重置发送超过指定时间的记录为超时
/// </summary>
/// <param name="bll"></param>
private void ResetDeliveringToTimeout(TrackerChatBLL bll)
{
// 未读取的消息都可以设置为超时，并等待再次推送
bll.Update(u => u.Status < (byte)TrackerChatStatus.Delivered && u.SendTime < DateTime.Now.AddMinutes(-30), act =>
{
// 超时
act.Status = (byte)TrackerChatStatus.Timeout;
// 超时次数+1
act.ResetedTimes += 1;
});
}
/// <summary>
/// 处理推送
/// </summary>
/// <param name="chat"></param>
/// <param name="bll"></param>
private void HandleTrackerChat(TB_TrackerChat chat, TrackerChatBLL bll)
{
bll.Update(u => u.id == chat.id, act =>
{
act.Status = (byte)TrackerChatStatus.Sending;
act.SendTime = DateTime.Now;
// 生成长度为5的随机字符串
act.MqttTag = CustomConvert.RandomString(5);
});
OnTrackerChating?.Invoke(this, new TrackerChatEvent()
{
Target = chat.TB_Tracker.SimCard, Content = chat.MqttTag
});
}
/// <summary>
/// 处理消息拉取
/// </summary>
/// <param name="obj"></param>
private void HandleFetchingMessage(Api obj)
{
var tmp = ParseJson <Account>(obj.content);
if (null != tmp && !string.IsNullOrEmpty(tmp.name))
{
using (var bll = new TrackerChatBLL())
{
var list = bll.FindList(f => f.TB_Tracker.SimCard.Equals(tmp.name) && f.Status != (byte)TrackerChatStatus.Delivered);
if (null != list && list.Count() > 0)
{
}
}
}
}
/// <summary>
/// 检测是否有需要发送的Tracker推送消息
/// </summary>
public void CheckTrackerChat()
{
using (var bll = new TrackerChatBLL())
{
var list = bll.FindList <TB_TrackerChat>(f => f.ScheduleTime >= DateTime.Now.AddMinutes(-5) &&
f.Status == (byte)TrackerChatStatus.Waiting, "ScheduleTime");
if (null != list && list.Count() > 0)
{
var chat = list.FirstOrDefault();
HandleTrackerChat(chat, bll);
}
// 重置一下超时的记录等待再次发送
ResetTimeoutTrackerChats(bll);
// 重置超时的记录
ResetDeliveringToTimeout(bll);
}
}
