created medaimtx handlers for audio streams commands, server returns payloads that need some adjustments

server/internal/handlers/tasks.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"net/http"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/gin-gonic/gin"
@@ -14,10 +15,16 @@ import (
 )
 
 type TasksHandler struct {
-	db *gorm.DB
+	db   *gorm.DB
+	mtxH *MediaMTXHandler
 }
 
-func NewTasksHandler(db *gorm.DB) *TasksHandler { return &TasksHandler{db: db} }
+func NewTasksHandler(db *gorm.DB, mtxH *MediaMTXHandler) *TasksHandler {
+	return &TasksHandler{
+		db:   db,
+		mtxH: mtxH,
+	}
+}
 
 // -----------------------------------------------------------------------------
 // 1) Device heartbeat + fetch next task
@@ -151,6 +158,22 @@ func (h *TasksHandler) CreateTask(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "lookup failed"})
 		return
 	}
+	switch req.Type {
+	case models.TaskTypeStartStream:
+		payload, err := h.mtxH.StartStreamPayload(guid)
+		if err != nil {
+			c.JSON(http.StatusBadGateway, gin.H{"error": "failed to build whip url"})
+			return
+		}
+		req.Payload = payload
+
+	case models.TaskTypeStopStream:
+		// best-effort server-side stop (kick publishers/readers on that path)
+		_ = h.mtxH.KickWebRTCSessionsByPath("live/" + guid)
+		if strings.TrimSpace(req.Payload) == "" {
+			req.Payload = `{"reason":"server_stop"}`
+		}
+	}
 
 	task := models.DEviceTask{
 		DeviceGUID: guid,