init

lib/log/logger.hpp

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+#pragma once
+#include <stdint.h>
+#include <time.h>
+#include <functional> // For std::function
+#include <cstdarg>
+#include "freertos/FreeRTOS.h"
+#include "freertos/queue.h"
+#include "freertos/task.h"
+
+
+enum LogLevel {
+    LOG_DEBUG,
+    LOG_INFO,
+    LOG_WARN,
+    LOG_ERROR
+};
+
+struct LogEntry {
+    LogLevel level;
+    time_t timestamp;
+    char message[128]; 
+};
+
+class Logger {
+public:
+    Logger();
+    ~Logger();
+
+    void begin(UBaseType_t taskPriority = 1, uint32_t taskStackSize = 2048);
+
+    void setLogLevel(LogLevel level);
+    LogLevel getLogLevel() const;
+
+    // Use the more flexible std::function for callbacks
+    void setLogCallback(std::function<void(const LogEntry& entry)> callback);
+
+    // --- NEW: Variadic functions for printf-style formatting ---
+    void debug(const char* format, ...);
+    void info(const char* format, ...);
+    void warn(const char* format, ...);
+    void error(const char* format, ...);
+
+    const LogEntry* getLogs(int& count) const;
+    void clear();
+    const char* levelToString(LogLevel level) const;
+
+private:
+    static const int MAX_LOGS = 20;
+    LogEntry logs[MAX_LOGS];
+    int logCount;
+    int logIndex;
+    LogLevel currentLogLevel;
+    
+    std::function<void(const LogEntry& entry)> logCallback;
+
+    QueueHandle_t logQueue;
+    TaskHandle_t logTaskHandle;
+    static void logProcessingTask(void* instance);
+    void addLog(LogLevel level, const char* format, va_list args);
+};
+
+extern Logger logger;
+
+// --- OPTIONAL: Performance-enhancing macros ---
+#define LOG_DEBUG(format, ...) if(logger.getLogLevel() <= LOG_DEBUG) { logger.debug(format, ##__VA_ARGS__); }
+#define LOG_INFO(format, ...)  if(logger.getLogLevel() <= LOG_INFO)  { logger.info(format, ##__VA_ARGS__); }
+#define LOG_WARN(format, ...)  if(logger.getLogLevel() <= LOG_WARN)  { logger.warn(format, ##__VA_ARGS__); }
+#define LOG_ERROR(format, ...) if(logger.getLogLevel() <= LOG_ERROR) { logger.error(format, ##__VA_ARGS__); }