first commit

main/mqtt_service/mqtt_protocol.c

@@ -0,0 +1,42 @@
+/*
+ * mqtt_protocol.c
+ *
+ *  Created on: 28 May 2026
+ *      Author: Christian Lind Vie Madsen
+ */
+
+#include "mqtt_protocol.h"
+
+char *topics[5] = {
+
+
+};
+
+void mqtt_protocol_GenerateTopic(char *buf, size_t size, mqtt_protocol_msg_t msg_type){
+
+		snprintf(buf, size,"SV/v1/1234/%d",msg_type+1);
+
+}
+
+void mqtt_protocol_heartbeat(char *buf,
+                     size_t size,
+                     const char *trailerId,
+                     const char *timestamp,
+                     const char *lat,
+                     const char *lon)
+{
+    snprintf(buf, size,
+        "{"
+          "\"timestamp\":\"%s\","
+          "\"location\":{"
+              "\"latitude\":\"%s\","
+              "\"longitude\":\"%s\""
+          "}"
+        "}",
+        timestamp,
+        lat,
+        lon
+    );
+}
+
+