refactoring into multiple files, not tested on hardware

command_processor.cpp

@@ -0,0 +1,19 @@
+#include "command_processor.h"
+#include <string.h>
+#include <stdio.h>
+
+CommandAction parse_command(const char* input) {
+    if (input[0] != '/') {
+        return CMD_NONE;
+    }
+
+    if (strcmp(input, "/refresh") == 0) {
+        return CMD_REFRESH;
+    } else if (strcmp(input, "/clear") == 0) {
+        return CMD_CLEAR;
+    } else if (strcmp(input, "/wifisetup") == 0) {
+        return CMD_WIFI;
+    }
+
+    return CMD_UNKNOWN;
+}