import type { Constructor } from '../../types';
import { getServiceSchema, type ServiceSchema } from './index';
import type { ServerServiceSchema } from './server.types';

export function getServerServiceSchema<T>(svc: Constructor<T>): ServerServiceSchema | undefined {
	const schema = getServiceSchema(svc) as ServerServiceSchema;
	if (!schema) {
		return;
	}

	let base: undefined | ServiceSchema<T>;
	if (schema.options?.as) {
		base = getServiceSchema(svc);
		if (!base) {
			throw new Error(`Service ${svc} base ${schema.options.as} is invalid`);
		}
	}

	return schema;
}