import type { ClassConstructor, ManifestClass } from '../models';
import { hasDefaultExport } from './has-default-export.function';
import { isManifestClassConstructorType } from './is-manifest-class-instance-type.function';
import { loadExtension } from './load-extension.function';

//TODO: Write tests for this method:
export async function createExtensionClass<T = unknown>(manifest: ManifestClass, constructorArguments: unknown[]): Promise<T | undefined> {

	const js = await loadExtension(manifest);

	if (isManifestClassConstructorType(manifest)) {
		return new manifest.class(...constructorArguments) as T;
	}

	if (js) {
		if (hasDefaultExport<ClassConstructor<T>>(js)) {
			return new js.default(...constructorArguments);
		}

		console.error('-- Extension did not succeed creating an class instance, missing a default export of the served JavaScript file', manifest);

		return undefined;
	}

	console.error('-- Extension did not succeed creating an class instance, missing a default export or `class` in the manifest.', manifest);
	return undefined;
}