#include <log.h>

void log_default_handler(log_level_t level, const char* module, const char* file, int line, const char* message) {
    const char* level_str;
    switch (level) {
        case LOG_LEVEL_DEBUG: level_str = "DEBUG"; break;
        case LOG_LEVEL_INFO:  level_str = "INFO ";  break;
        case LOG_LEVEL_WARN:  level_str = "WARN ";  break;
        case LOG_LEVEL_ERROR: level_str = "ERROR"; break;
        case LOG_LEVEL_FATAL: level_str = "FATAL"; break;
        case LOG_LEVEL_TRACE: level_str = "TRACE"; break;
        default:              level_str = "NOTSET"; break;
    }

/// @note: 定义 __LOG_NO_COLOR__ 会取消颜色输出
#ifndef __LOG_NO_COLOR__
    const char* color_code;
    switch (level) {
        case LOG_LEVEL_DEBUG: color_code = ANSI_FG_CYAN; break;
        case LOG_LEVEL_INFO:  color_code = ANSI_FG_GREEN; break;
        case LOG_LEVEL_TRACE: color_code = ANSI_FG_BLUE; break;
        case LOG_LEVEL_WARN:  color_code = ANSI_FG_YELLOW; break;
        case LOG_LEVEL_ERROR: color_code = ANSI_FG_RED; break;
        case LOG_LEVEL_FATAL: color_code = ANSI_FG_RED ANSI_UNDERLINED; break; // 增强对比度
        default: color_code = ANSI_NONE;
    }

    log_printf(ANSI_BOLD "%s[%s] - %s - %s:%d | %s" ANSI_NONE "\n", color_code,
            level_str, module, file, line, message);
#else
    log_printf("[%s] %s:%d | %s: %s\n", 
            level_str, file, line, module, message);
#endif
    // for clangd warning
    // clang-analyzer-deadcode.DeadStores
    (void)color_code;
    (void)level_str;
    if (level & LOG_LEVEL_FATAL) {
        log_exit(-LOG_LEVEL_FATAL);
    }
}

logger_t logger_root = {
    .name = "root",
    .level = LOG_LEVEL_ALL,
    .handler = log_default_handler,
};

void init_logger(logger_t* logger, const char* name) {
    logger->name = name;
    logger->handler = log_default_handler;
    log_set_level(logger, LOG_LEVEL_ALL);
}

logger_t* log_get(const char* name) {
    return &logger_root;
}

void log_set_level(logger_t* logger, log_level_t level) {
    if (logger) logger->level = level;
    else logger_root.level = level;
}

void log_set_handler(logger_t* logger, log_handler handler) {
    if (logger) logger->handler = handler;
    else logger_root.handler = handler;
}

void logger_destroy(logger_t* logger) {
    return;
}