/**
 * ShaderShark
 * Copyright © 2023 František Kučera (Frantovo.cz, GlobalCode.info)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <ostream>
#include <string>

#define LOG_LEVEL(XX) \
	XX(OFF, 0, "OFF") \
	XX(SEVERE, 1, "SEVERE") \
	XX(WARNING, 2, "WARNING") \
	XX(INFO, 3, "INFO") \
	XX(CONFIG, 4, "CONFIG") \
	XX(FINE, 5, "FINE") \
	XX(FINER, 6, "FINER") \
	XX(FINEST, 7, "FINEST") \
	XX(ALL, 8, "ALL")

enum class LogLevel {
#define XX(a, b, c) a = (1 << b),
	LOG_LEVEL(XX)
#undef XX
};

static const char* LOG_LEVELS[] = {
#define XX(a, b, c) [b] = c,
	LOG_LEVEL(XX)
#undef XX
};

#undef LOG_LEVEL

#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

inline const char* getLogLevelName(LogLevel l) {
	auto count = ARRAY_SIZE(LOG_LEVELS);
	for (int i = 0; i < count; i++) if ((int) l == 1 << i) return LOG_LEVELS[i];
	return nullptr;
}

inline void log(std::ostream& out, LogLevel level, std::string message) {
	out << getLogLevelName(level) << ": " << message << std::endl;
}