import type { FKFieldConfig, ResourceRelationship } from "../types";

export function extractRelationships(schema: any, schemas: Record<string, any>): ResourceRelationship[] {
  const props = schema.properties ?? {};
  const rels: ResourceRelationship[] = [];

  for (const [name, _raw] of Object.entries(props)) {
    const prop = _raw as any;
    if (!prop || typeof prop !== "object") continue;

    if (!prop["x-fk"]) continue;

    const fkResource = prop["x-fk"].resource as string;
    const prefetch = prop["x-fk"].prefetch ?? false;

    rels.push({
      fieldName: name,
      config: {
        resource: fkResource,
        prefetch,
      },
      targetSchemaName: fkResource,
    });
  }

  return rels;
}