import { Prisma } from "@prisma/client";
import { LeaveRequestViewDto } from "../dtos/leave-request-view.dto";
import { LeaveRequestRow } from "../utils/leave-requests.select";

const toNum = (value?: Prisma.Decimal | null) =>
    value !== null && value !== undefined ? Number(value) : undefined;

export function mapRowToView(row: LeaveRequestRow): LeaveRequestViewDto {
    const iso_date = row.date?.toISOString().slice(0, 10);
    if (!iso_date) throw new Error(`Leave request #${row.id} has no date set.`);

    return {
        id: row.id,
        leave_type: row.leave_type,
        date: iso_date,
        payable_hours: toNum(row.payable_hours),
        requested_hours: toNum(row.requested_hours),
        comment: row.comment,
        approval_status: row.approval_status,
        email: row.employee.user.email,
        employee_full_name: `${row.employee.user.first_name} ${row.employee.user.last_name}`,
    };
}