// import { NotFoundException } from "@nestjs/common";

// export function overlaps(
// 	a_start_ms: number,
// 	a_end_ms: number,
// 	b_start_ms: number,
// 	b_end_ms: number,
// ): boolean {
// 	return a_start_ms < b_end_ms && b_start_ms < a_end_ms;
// }

// export function resolveBankCodeByType(type: string): Promise<number> {
// 	const bank = this.prisma.bankCodes.findFirst({
// 		where: { type },
// 		select: { id: true },
// 	});
// 	if (!bank) {
// 		throw new NotFoundException({ error_code: 'SHIFT_TYPE_UNKNOWN', message: `unknown shift type: ${type}` });
// 	}
// 	return bank.id;
// }

// export function normalizeShiftPayload(payload: {
// 	date: string,
// 	start_time: string,
// 	end_time: string,
// 	type: string,
// 	is_remote: boolean,
// 	is_approved: boolean,
// 	comment?: string | null,
// }) {
// 	//normalize shift's infos
// 	const date = payload.date?.trim();
// 	const m = /^(\d{4})-(\d{2})-(\d{2})$/.exec(date ?? '');
// 	if (!m) throw new Error(`Invalid date format (expected YYYY-MM-DD): "${payload.date}"`);
// 	const year = Number(m[1]), mo = Number(m[2]), d = Number(m[3]);

// 	const asLocalDateOn = (input: string): Date => {
// 		// HH:mm ?
// 		const hm = /^(\d{2}):(\d{2})$/.exec((input ?? '').trim());
// 		if (hm) return new Date(year, mo - 1, d, Number(hm[1]), Number(hm[2]), 0, 0);
// 		const iso = new Date(input);
// 		if (isNaN(iso.getTime())) throw new Error(`Invalid time: "${input}"`);
// 		return new Date(year, mo - 1, d, iso.getHours(), iso.getMinutes(), iso.getSeconds(), iso.getMilliseconds());
// 	};

// 	const start_time = asLocalDateOn(payload.start_time);
// 	const end_time   = asLocalDateOn(payload.end_time);

// 	const type = (payload.type || '').trim().toUpperCase();
// 	const is_remote = payload.is_remote;
// 	const is_approved = payload.is_approved;
// 	//normalize comment
// 	const trimmed = typeof payload.comment === 'string' ? payload.comment.trim() : null;
// 	const comment = trimmed && trimmed.length > 0 ? trimmed : null;

// 	return { date, start_time, end_time, type, is_remote, is_approved, comment };
// }