import type { Dayjs } from 'dayjs';

export interface CheckInFormValues {
  studentId: number;
  roomId: number;
  checkInDate: Dayjs;
  billingStartDate?: Dayjs;
  stayType?: string;
  collectDeposit?: boolean;
  depositAmount?: number;
  notes?: string;
  bedId: number;
  lockerId?: number;
}

export const buildCheckInPayload = (values: CheckInFormValues) => {
  const collectDeposit = values.collectDeposit ?? false;
  return {
    studentId: values.studentId,
    roomId: values.roomId,
    checkInDate: values.checkInDate.format('YYYY-MM-DD'),
    billingStartDate: (values.billingStartDate || values.checkInDate).format('YYYY-MM-DD'),
    stayType: values.stayType || 'short',
    collectDeposit,
    depositAmount: collectDeposit ? values.depositAmount ?? 500 : undefined,
    notes: values.notes?.trim() || undefined,
    bedId: values.bedId,
    lockerId: values.lockerId || undefined,
  };
};

export interface TransferFormValues {
  newRoomId: number;
  newBedId: number;
  newLockerId?: number;
  transferDate: Dayjs;
  oldBillingEndDate?: Dayjs;
  newBillingStartDate?: Dayjs;
  reason?: string;
}

export const buildTransferPayload = (values: TransferFormValues) => ({
  newRoomId: values.newRoomId,
  newBedId: values.newBedId,
  newLockerId: values.newLockerId || undefined,
  transferDate: values.transferDate.format('YYYY-MM-DD'),
  oldBillingEndDate: values.oldBillingEndDate?.format('YYYY-MM-DD'),
  newBillingStartDate: values.newBillingStartDate?.format('YYYY-MM-DD'),
  reason: values.reason,
});