make envOptions dynamic

packages/backend/src/env.ts

@@ -3,7 +3,19 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-const envOption = {
+export interface EnvOption {
+	onlyQueue: boolean;
+	onlyServer: boolean;
+	noDaemons: boolean;
+	disableClustering: boolean;
+	verbose: boolean;
+	withLogTime: boolean;
+	quiet: boolean;
+	hideWorkerId: boolean;
+	[key: string]: boolean;
+}
+
+const defaultEnvOption: Readonly<EnvOption> = {
 	onlyQueue: false,
 	onlyServer: false,
 	noDaemons: false,
@@ -14,12 +26,66 @@ const envOption = {
 	hideWorkerId: false,
 };
 
-for (const key of Object.keys(envOption) as (keyof typeof envOption)[]) {
-	if (process.env['MK_' + key.replace(/[A-Z]/g, letter => `_${letter}`).toUpperCase()]) envOption[key] = true;
+function translateKey(key: string): string {
+	return 'MK_' + key.replace(/[A-Z]/g, letter => `_${letter}`).toUpperCase();
 }
 
-if (process.env.NODE_ENV === 'test') envOption.disableClustering = true;
-if (process.env.NODE_ENV === 'test') envOption.quiet = true;
-if (process.env.NODE_ENV === 'test') envOption.noDaemons = true;
+const testEnvOption: Readonly<EnvOption> = {
+	...defaultEnvOption,
+	disableClustering: true,
+	quiet: true,
+	noDaemons: true,
+};
 
-export { envOption };
+/** @deprecated use EnvService when possible */
+export const envOption: EnvOption = createEnvOptions(() => process.env);
+
+export function createEnvOptions(getEnv: () => Partial<Record<string, string>>): EnvOption {
+	return new Proxy({} as EnvOption, {
+		get(target, key) {
+			if (typeof(key) !== 'string') {
+				return Reflect.get(target, key);
+			}
+
+			const env = getEnv();
+			const envKey = translateKey(key);
+			if (envKey in env) {
+				return !!env[envKey];
+			}
+
+			const def = env.NODE_ENV === 'test' ? testEnvOption : defaultEnvOption;
+			if (key in def) {
+				return def[key];
+			}
+
+			return false;
+		},
+		set(target, key, value) {
+			if (typeof(key) !== 'string') {
+				return Reflect.set(target, key, value);
+			}
+
+			const env = getEnv();
+			const envKey = translateKey(key);
+			if (value) {
+				env[envKey] = '1';
+			} else {
+				delete env[envKey];
+			}
+			return true;
+		},
+		has(target, key): boolean {
+			return typeof(key) === 'string' || key in target;
+		},
+		deleteProperty(target, key): boolean {
+			if (typeof(key) !== 'string') {
+				return Reflect.deleteProperty(target, key);
+			}
+
+			const env = getEnv();
+			const envKey = translateKey(key);
+			delete env[envKey];
+			return true;
+		},
+	});
+}