feat: add helper functions for loggers

src/Mokosh.hpp

@@ -65,8 +65,10 @@ class Mokosh
     Mokosh *registerService(const char *key, std::shared_ptr<MokoshService> service);
     Mokosh *registerService(std::shared_ptr<MokoshService> service);
 
-    // registers a debug adapter
+    // registers a logger
     Mokosh *registerLogger(const char *key, std::shared_ptr<MokoshLogger> service);
+
+    // registers a logger
     Mokosh *registerLogger(std::shared_ptr<MokoshLogger> service);
 
     // prints message of a desired debug level to all debug adapters
@@ -75,7 +77,7 @@ class Mokosh
     // use rather mlog() macros instead of direct usage of this function
     static void log(LogLevel level, const char *func, const char *file, int line, const char *fmt, ...);
 
-    // prints to the debug adapters the "busy" indicator
+    // prints to the loggers the "busy" indicator
     static void debug_ticker_step();
     static void debug_ticker_finish(bool success);
 

src/MokoshLogger.hpp

@@ -6,6 +6,7 @@
 // Debug level - starts from 0 to 6, higher is more severe
 typedef enum LogLevel
 {
+    NONE = -1,
     PROFILER = 0,
     DEBUG = 1,
     VERBOSE = 2,
@@ -43,24 +44,9 @@ class MokoshLogger : public MokoshService
 
 protected:
     LogLevel currentLevel;
-};
-
-class SerialLogger : public MokoshLogger
-{
-public:
-    virtual bool setup() override
-    {
-        this->setupFinished = true;
-        return true;
-    }
-
-    virtual void loop() override {}
 
-    virtual void log(LogLevel level, const char *func, const char *file, int line, long time, const char *msg) override
+    virtual char levelToChar(LogLevel level)
     {
-        if (level < this->currentLevel)
-            return;
-
         char lvl;
         switch (level)
         {
@@ -83,6 +69,27 @@ class SerialLogger : public MokoshLogger
             lvl = 'A';
         }
 
+        return lvl;
+    }
+};
+
+class SerialLogger : public MokoshLogger
+{
+public:
+    virtual bool setup() override
+    {
+        this->setupFinished = true;
+        return true;
+    }
+
+    virtual void loop() override {}
+
+    virtual void log(LogLevel level, const char *func, const char *file, int line, long time, const char *msg) override
+    {
+        if (level < this->currentLevel)
+            return;
+
+        char lvl = this->levelToChar(level);
         Serial.printf("(%c t:%ldms) (%s %s:%d) %s\n", lvl, time, func, file, line, msg);
     }