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

export interface GetTimecardInput {
  timecardId: string;
}

/**
 * Function: getTimecard
 * Retrieves a single Timecard by its id, in any lifecycle status (OPEN,
 * SUBMITTED, APPROVED, LOCKED).
 */
export async function run(db: ReadonlyDB<DB>, input: GetTimecardInput) {
  const timecard = await db
    .selectFrom("Timecard")
    .selectAll()
    .where("id", "=", input.timecardId)
    .executeTakeFirst();

  if (!timecard) {
    return err(new TimecardNotFoundError(input.timecardId));
  }

  return ok({ timecard });
}