Created scaffolding for config module with log default

src/lib/server/config.ts

@@ -0,0 +1,56 @@
+import path from "node:path"
+
+const to_absolute_path = (p: string): string => {
+	if (path.isAbsolute(p)) {
+		return p
+	}
+	return path.resolve(process.cwd(), p)
+}
+
+const resolve_env_to_path = (env: string|undefined, fallback: string): string => {
+	if (!env) {
+		return to_absolute_path(fallback)
+	}
+	return to_absolute_path(env)
+}
+
+const resolve_env_to_boolean = (env: string|undefined, fallback: boolean): boolean => {
+	if (!env) {
+		return fallback
+	}
+
+	const str = env.toLowerCase()
+
+	switch (str) {
+		case "false":
+		case "no":
+		case "off": return false
+	}
+
+	return true
+}
+
+class Config {
+	private _log_dir: string
+	private _log_to_file_when_debug: boolean
+
+	readonly is_debug: boolean = process.env.NODE_ENV != "production"
+	readonly is_production: boolean = process.env.NODE_ENV == "production"
+
+	get log_dir(): string {
+		return this._log_dir
+	}
+	get log_to_file_when_debug(): boolean {
+		return this._log_to_file_when_debug
+	}
+
+	constructor() {
+		this._log_dir = resolve_env_to_path(process.env.APP_LOG_DIR, "./data/logs")	
+		this._log_to_file_when_debug = resolve_env_to_boolean(process.env.LOG_TO_FILE_WHEN_DEBUG, false)
+	}
+
+}
+
+const _config = new Config()
+
+export default _config;