import { stringify } from "yaml";
import type { ServiceMetadata } from "./types.ts";

/** Build the docker-compose.yml content for a service from its metadata. */
export function generateComposeFile(meta: ServiceMetadata): string {
  const doc: Record<string, unknown> = {};

  if (meta.networks && Object.keys(meta.networks).length > 0) {
    doc.networks = meta.networks;
  }
  if (meta.volumes && Object.keys(meta.volumes).length > 0) {
    doc.volumes = meta.volumes;
  }
  doc.services = { [meta.id]: meta.compose };

  return stringify(doc, { lineWidth: 0 });
}