import { err, ok, type ReadonlyDB } from "@tailor-platform/erp-kit/core";
import type { DB } from "../generated/kysely-tailordb";
import { WorkRegimeNotFoundError } from "../lib/errors.generated";

export interface GetWorkRegimeInput {
  id: string;
}

/**
 * Function: getWorkRegime
 * Description: Retrieves a single WorkRegime catalog entry by its surrogate id.
 */
export async function run(db: ReadonlyDB<DB>, input: GetWorkRegimeInput) {
  const workRegime = await db
    .selectFrom("WorkRegime")
    .selectAll()
    .where("id", "=", input.id)
    .executeTakeFirst();

  if (!workRegime) {
    return err(new WorkRegimeNotFoundError(input.id));
  }

  return ok({ workRegime });
}