logger.h

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#pragma once
 
#include <esp_log.h>
#include <freertos/FreeRTOS.h>
#include "include/flags.h"
 
class Logger {
private:
    explicit Logger() = default;
    ~Logger() = default;
 
    QueueHandle_t queue_handle = nullptr;
    bool use_queue = false;
 
public:
    struct log_item {
        esp_log_level_t level;
        const char* tag;
        char* message;
        bool is_linefeed;
    };
 
public:
    static Logger& get_instance() {
        static Logger _instance;
        return _instance;
    }

    void custom_log(esp_log_level_t level, const char* tag, const char* format, ...) const __attribute__((format(printf, 4, 5)));

    void print_linefeed() const;

    void switch_to_queue_logging(QueueHandle_t log_queue_handle);

    void process_log_queue() const;
};

#define LOGV(format, ...) do { \
    if constexpr (Flags::LOWEST_LOG_LEVEL >= ESP_LOG_VERBOSE) { \
        if constexpr (Flags::ENABLED_VERBOSE_LOG_SOURCES & LOG_SOURCE) { \
            Logger::get_instance().custom_log(ESP_LOG_VERBOSE, TAG, format, ##__VA_ARGS__); \
        } \
    } \
} while (0)

#define LOGD(format, ...) do { \
    if constexpr (Flags::LOWEST_LOG_LEVEL >= ESP_LOG_DEBUG) { \
        Logger::get_instance().custom_log(ESP_LOG_DEBUG, TAG, format, ##__VA_ARGS__); \
    } \
} while (0)

#define LOGI(format, ...) do { \
    if constexpr (Flags::LOWEST_LOG_LEVEL >= ESP_LOG_INFO) { \
        Logger::get_instance().custom_log(ESP_LOG_INFO, TAG, format, ##__VA_ARGS__); \
    } \
} while (0)

#define LOGW(format, ...) do { \
    if constexpr (Flags::LOWEST_LOG_LEVEL >= ESP_LOG_WARN) { \
        Logger::get_instance().custom_log(ESP_LOG_WARN, TAG, format, ##__VA_ARGS__); \
    } \
} while (0)

#define LOGE(format, ...) do { \
    if constexpr (Flags::LOWEST_LOG_LEVEL >= ESP_LOG_ERROR) { \
        Logger::get_instance().custom_log(ESP_LOG_ERROR, TAG, format, ##__VA_ARGS__); \
    } \
} while (0)