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

export interface GetShiftScheduleInput {
  shiftScheduleId: string;
}

/**
 * Function: getShiftSchedule
 * Description: Retrieves a single shiftSchedule period by id, in any status.
 */
export async function run(db: ReadonlyDB<DB>, input: GetShiftScheduleInput) {
  const shiftSchedule = await db
    .selectFrom("ShiftSchedule")
    .selectAll()
    .where("id", "=", input.shiftScheduleId)
    .executeTakeFirst();

  if (!shiftSchedule) {
    return err(new ShiftScheduleNotFoundError(input.shiftScheduleId));
  }

  return ok({ shiftSchedule });
}