Files
anm2ed/src/log.cpp
2025-12-18 00:36:19 -05:00

90 lines
2.4 KiB
C++

#include "log.h"
#include <filesystem>
#include <iterator>
#include <print>
#include "sdl.h"
#include "time_.h"
using namespace anm2ed::util;
namespace anm2ed
{
namespace
{
bool ensure_utf8_bom(const std::filesystem::path& path)
{
std::error_code ec{};
if (!std::filesystem::exists(path, ec)) return false;
std::ifstream existing(path, std::ios::binary);
if (!existing) return false;
char bom[3]{};
existing.read(bom, sizeof(bom));
auto bytesRead = existing.gcount();
auto hasBom = bytesRead == sizeof(bom) && bom[0] == '\xEF' && bom[1] == '\xBB' && bom[2] == '\xBF';
if (hasBom) return true;
existing.clear();
existing.seekg(0, std::ios::beg);
std::string contents((std::istreambuf_iterator<char>(existing)), std::istreambuf_iterator<char>());
existing.close();
std::ofstream output(path, std::ios::binary | std::ios::trunc);
if (!output) return false;
output << "\xEF\xBB\xBF";
output.write(contents.data(), static_cast<std::streamsize>(contents.size()));
output.close();
return true;
}
}
void Logger::write_raw(const std::string& message)
{
std::println("{}", message);
if (file.is_open()) file << message << '\n' << std::flush;
}
void Logger::write(const Level level, const std::string& message)
{
std::string formatted = std::format("{} {} {}", time::get("(%d-%B-%Y %I:%M:%S)"), LEVEL_STRINGS[level], message);
write_raw(formatted);
}
void Logger::info(const std::string& message) { write(INFO, message); }
void Logger::warning(const std::string& message) { write(WARNING, message); }
void Logger::error(const std::string& message) { write(ERROR, message); }
void Logger::fatal(const std::string& message) { write(FATAL, message); }
void Logger::command(const std::string& message) { write(COMMAND, message); }
void Logger::open(const std::filesystem::path& path)
{
std::error_code ec{};
auto exists = std::filesystem::exists(path, ec);
if (exists) ensure_utf8_bom(path);
file.open(path, std::ios::out | std::ios::app);
if (!file.is_open()) return;
if (!exists) file << "\xEF\xBB\xBF";
}
std::filesystem::path Logger::path() { return sdl::preferences_directory_get() / "log.txt"; }
Logger::Logger()
{
open(path());
info("Initializing Anm2Ed");
}
Logger::~Logger()
{
info("Exiting Anm2Ed");
if (file.is_open()) file.close();
}
}
anm2ed::Logger logger;