Logging.hpp

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#pragma once
#include <cstdio>
#include <chrono>
#include <string_view>
#include <fmt/format.h>
#include <fmt/chrono.h>
 
enum LogLevel
{
    LogDebug,
    LogInfo,
    LogWarn,
    LogError
};
// NOLINTBEGIN
constexpr const char* format_as(LogLevel level)
{
    switch (level)
    {
    case LogDebug: return "D";
    case LogInfo: return  "I";
    case LogError: return "E";
    case LogWarn: return "W";
    }
}
 
// NOLINTEND
 
extern void Foundation_LogImpl(LogLevel level, const char* tag, std::string_view formatted);
template<typename ...Args>
void Foundation_Log(const char* tag, LogLevel level, fmt::format_string<Args...> format, Args&&... args)
{
    constexpr size_t kN = sizeof...(Args);
    if constexpr (kN > 0)
    {
        Foundation_LogImpl(level, tag, fmt::format(format, std::forward<Args>(args)...));
    } else
    {
        Foundation_LogImpl(level, tag, format.str.data());
    }
}
 
#define LOG(TAG, LEVEL, FORMAT, ...) Foundation_Log(#TAG, LEVEL, FORMAT __VA_OPT__(,) __VA_ARGS__);
 
#define CHECK(expr) if(!(expr)) { \
    LOG(Core, LogError, "Check failed: " #expr); \
    throw std::runtime_error( #expr ); \
}
 
#define CHECK_MSG(expr, format_str, ...) if(!(expr)) { \
    LOG(Core, LogError, format_str __VA_OPT__(,) __VA_ARGS__); \
    throw std::runtime_error( #expr ); \
}