import type { WorkOrderBoardCreatePayload } from "@/domain/work-orders/types/work-order-board";
import type { WorkOrderWizardDraft } from "@/domain/work-orders/types/work-order-wizard";
import { mondayOf } from "@/domain/work-orders/utils/wizard-date-utils";

/**
 * Mutates `payload` with `dueDate` and schedule fields.
 * Range mode lands on the board using the range start as `scheduledDate`
 * (prototype `hasScheduleDate`: a range start qualifies as scheduled).
 */
export function assignWizardScheduleFields(
  payload: WorkOrderBoardCreatePayload,
  draft: WorkOrderWizardDraft,
): void {
  if (draft.dueDate) {
    payload.dueDate = draft.dueDate;
  }

  const isRange = draft.schedMode === "range";

  if (!isRange && draft.scheduleWeekOnly) {
    const week = draft.targetWeek?.trim() || (draft.scheduledOn ? mondayOf(draft.scheduledOn) : "");

    // Only emit week-mode flags when a concrete week exists (SH-109: undated create).
    if (week) {
      payload.scheduleWeekOnly = true;
      payload.targetWeek = week;
    }
  } else if (draft.scheduledOn && (isRange || !draft.scheduleWeekOnly)) {
    payload.scheduledDate = draft.scheduledOn;
  }
}