first commit

src/lib/config.ts

@@ -0,0 +1,59 @@
+import { readFileSync } from "node:fs";
+import { resolve } from "node:path";
+
+const defaultConfig: Required<LoggerConfig> = {
+	directory: "logs",
+	level: "info",
+	disableFile: false,
+
+	rotate: true,
+	maxSizeMB: 5,
+	maxFiles: 3,
+
+	console: true,
+	consoleColor: true,
+
+	dateFormat: "YYYY-MM-DD HH:mm:ss",
+	timezone: "UTC",
+
+	silent: false,
+
+	pattern: "{timestamp} [{level-name}] ({file-name}:{line}){message}",
+};
+
+function loadLoggerConfig(configPath = "logger.json"): LoggerConfig {
+	try {
+		const fullPath: string = resolve(process.cwd(), configPath);
+		const raw: string = readFileSync(fullPath, "utf-8");
+		return JSON.parse(raw);
+	} catch {
+		return {};
+	}
+}
+
+function loadEnvConfig(): LoggerConfig {
+	const config: LoggerConfig = {};
+
+	if (process.env.LOG_LEVEL) config.level = process.env.LOG_LEVEL as LogLevel;
+	if (process.env.LOG_DIRECTORY) config.directory = process.env.LOG_DIRECTORY;
+	if (process.env.LOG_DISABLE_FILE)
+		config.disableFile = process.env.LOG_DISABLE_FILE === "true";
+	if (process.env.LOG_ROTATE) config.rotate = process.env.LOG_ROTATE === "true";
+	if (process.env.LOG_MAX_SIZE_MB)
+		config.maxSizeMB = Number.parseInt(process.env.LOG_MAX_SIZE_MB, 10);
+	if (process.env.LOG_MAX_FILES)
+		config.maxFiles = Number.parseInt(process.env.LOG_MAX_FILES, 10);
+	if (process.env.LOG_CONSOLE)
+		config.console = process.env.LOG_CONSOLE === "true";
+	if (process.env.LOG_CONSOLE_COLOR)
+		config.consoleColor = process.env.LOG_CONSOLE_COLOR === "true";
+	if (process.env.LOG_DATE_FORMAT)
+		config.dateFormat = process.env.LOG_DATE_FORMAT;
+	if (process.env.LOG_TIMEZONE) config.timezone = process.env.LOG_TIMEZONE;
+	if (process.env.LOG_SILENT) config.silent = process.env.LOG_SILENT === "true";
+	if (process.env.LOG_PATTERN) config.pattern = process.env.LOG_PATTERN;
+
+	return config;
+}
+
+export { defaultConfig, loadLoggerConfig, loadEnvConfig };