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#include "cru/common/logger.hpp"
#include "cru/common/format.hpp"
#include <cstdlib>
#include <ctime>
#include <memory>
#include <string_view>
namespace cru::log {
namespace {
Logger *CreateLogger() {
const auto logger = new Logger();
logger->AddSource(new StdioLoggerSource());
return logger;
}
} // namespace
Logger *Logger::GetInstance() {
static std::unique_ptr<Logger> logger{CreateLogger()};
return logger.get();
}
Logger::~Logger() {
for (const auto i : sources_) {
delete i;
}
}
void Logger::AddSource(ILoggerSource *source) { sources_.push_back(source); }
void Logger::RemoveSource(ILoggerSource *source) { sources_.remove(source); }
namespace {
std::wstring_view LogLevelToString(LogLevel level) {
switch (level) {
case LogLevel::Debug:
return L"DEBUG";
case LogLevel::Info:
return L"INFO";
case LogLevel::Warn:
return L"WARN";
case LogLevel::Error:
return L"ERROR";
default:
std::abort();
}
}
} // namespace
void Logger::Log(LogLevel level, const std::wstring_view &s) {
#ifndef CRU_DEBUG
if (level == LogLevel::Debug) {
return;
}
#endif
for (const auto source : sources_) {
auto now = std::time(nullptr);
wchar_t buffer[50];
std::wcsftime(buffer, 50, L"%c", std::localtime(&now));
source->Write(level, util::Format(L"[{}] {}: {}\n", buffer,
LogLevelToString(level), s));
}
}
} // namespace cru::log
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