ColdVerify_server/Nats/Nats.go

package Nats

import (
	"ColdVerify_server/Nats/NatsServer"
	"ColdVerify_server/conf"
	"ColdVerify_server/lib"
	"ColdVerify_server/logs"
	"ColdVerify_server/models/Device"
	"ColdVerify_server/models/System"
	"ColdVerify_server/models/Task"
	"fmt"
	"github.com/nats-io/nats.go"
	"github.com/vmihailenco/msgpack/v5"
	"sync"
)

func init() {

	logs.Println("============Nats init============")
	var err error
	// 连接Nats服务器
	lib.Nats, err = nats.Connect("nats://" + conf.NatsServer_Url)
	if err != nil {
		fmt.Println("nats 连接失败！")
		panic(err)
	}
	logs.Println("nats OK！")

	go NatsInit()
}

type Extract_TaskData_Back struct {
	T_uuid          string                   `xml:"T_uuid"` // 任务主键id
	Time_start      string                   `xml:"Time_start"`
	Time_end        string                   `xml:"Time_end"`
	DeviceClassList []Device.DeviceClassList `xml:"DeviceClassList"` // 泛型
	Task            Task.Task                `xml:"Task"`            // 泛型
}

func NatsInit() {

	// 发布-订阅 模式，打包数据
	_, _ = lib.Nats.Subscribe("ColdVerify_Server_Extract_TaskData_Back", func(m *nats.Msg) {
		logs.Debug("Extract_TaskData_Back message: %v\n", string(m.Data))

		var resp Extract_TaskData_Back

		err := msgpack.Unmarshal(m.Data, &resp)
		if err != nil {
			System.Add_Logs("Nats", "msgpack Unmarshal err", string(m.Data))
			return
		}

		Task_r := resp.Task
		// 清空表
		Task.Truncate_TaskData(Task_r.T_task_id)

		DeviceClassList := new(sync.Map)
		for _, v := range resp.DeviceClassList {
			DeviceClassList.Store(v.Id, v)
		}

		DeviceClassList.Range(func(k, v any) bool {
			c := v.(Device.DeviceClassList)
			logs.Println("DeviceClass ---- ", c.T_sn, resp.Task.T_task_id, resp.Time_start, resp.Time_end)
			err = Task.Import_TaskData_Back(c.T_sn, c.T_id, resp.Task.T_task_id, resp.Time_start, resp.Time_end)
			if err == nil {
				DeviceClassList.Delete(k)
			}
			return true
		})

		TaskData_Num := Task.Read_TaskData_Count(Task_r.T_task_id)

		if TaskData_Num == 0 {
			Task_r.T_collection_state = 0
			if !Task.Update_Task(Task_r, "T_collection_state") {
				logs.Error(lib.FuncName(), "后台执行修改任务数据失败")
			}
			return
		}

		// 导入到本地数据
		NatsServer.Import_TaskData(resp.T_uuid, Task_r.T_task_id, TaskData_Num)

		System.Add_UserLogs_T(resp.T_uuid, "任务", "修改", Task_r)

		System.Add_UserLogs(resp.T_uuid, "提取数据", "提取数据"+Task_r.T_name, Task_r.T_task_id+"|"+resp.Time_start+"|"+resp.Time_end)

	})

	_, _ = lib.Nats.Subscribe("ColdVerify_Server_Update_Task", func(m *nats.Msg) {

		var t_Req Task.Task
		var t_R lib.JSONS
		err := msgpack.Unmarshal(m.Data, &t_Req)
		if err != nil {
			logs.Error("Mats", lib.FuncName(), err)
			t_R.Code = 202
			t_R.Msg = err.Error()
			b, _ := msgpack.Marshal(&t_R)
			_ = lib.Nats.Publish(m.Reply, b)
			return
		}
		fmt.Printf("ColdVerify_Server_Update_Task message: %+v\n", t_Req)

		col := []string{}
		if t_Req.T_delivery_state > 0 {
			col = append(col, "T_delivery_state")
		}

		if !Task.Update_Task(t_Req, "T_collection_state", "T_delivery_state") {
			logs.Error("Mats", lib.FuncName(), err)
			t_R.Code = 202
			t_R.Msg = err.Error()
			b, _ := msgpack.Marshal(&t_R)
			_ = lib.Nats.Publish(m.Reply, b)
			return
		}

		t_R.Code = 200
		t_R.Msg = "ok"

		b, _ := msgpack.Marshal(&t_R)
		_ = lib.Nats.Publish(m.Reply, b)

	})

	_, _ = lib.Nats.Subscribe("ColdVerify_Server_Read_Task", func(m *nats.Msg) {
		fmt.Printf("ColdVerify_Server_Read_Task message: %+v\n", string(m.Data))

		var t_R lib.JSONS
		task, is := Task.Read_Task(string(m.Data))
		if !is {
			logs.Error("Mats", lib.FuncName())
			t_R.Code = 202
			t_R.Msg = "查询失败"
			b, _ := msgpack.Marshal(&t_R)
			_ = lib.Nats.Publish(m.Reply, b)
			return
		}

		t_R.Code = 200
		t_R.Msg = "ok"
		t_R.Data = task

		b, _ := msgpack.Marshal(&t_R)
		_ = lib.Nats.Publish(m.Reply, b)

	})

}