import { MetaConfigService } from "@server/meta/fd-meta-core/meta-config/meta-config-service";
import { singleOrDefault } from "@server/fd/fd-toolbox/collections/single-warnings";
import { FdLifetimeScope } from "@server/fd/fd-toolbox/di/fd-lifetime-scope";

let metaConfigServices: MetaConfigService[] | null = null;

export function getMetaConfigService(resourceName: string): MetaConfigService | undefined {
    const services = getMetaConfigServices();
    return singleOrDefault(services.filter(h => h.ResourceName === resourceName));
}

function getMetaConfigServices(): MetaConfigService[] {
    if (!metaConfigServices) {
        const lifetimeScope = new FdLifetimeScope();
        metaConfigServices = lifetimeScope.resolve<MetaConfigService[]>("MetaConfigServices");
        if (!Array.isArray(metaConfigServices)) {
            throw new Error("Failed to resolve MetaConfigServices");
        }
    }
    return metaConfigServices;
}