/** 排班网格的日期工具 */
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const WEEK_LABELS = ['日', '一', '二', '三', '四', '五', '六'];
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/** 返回某月天数数组，如 2026-08 → [1..31] */
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export function getDaysOfMonth(yearMonth: string): number[] {
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const [yearStr, monthStr] = yearMonth.split('-');
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const days = new Date(Number(yearStr), Number(monthStr), 0).getDate();
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return Array.from({ length: days }, (_, i) => i + 1);
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}
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/** 返回某日的星期中文标签（日/一/二…） */
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export function getWeekLabel(yearMonth: string, day: number): string {
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const date = new Date(`${yearMonth}-${String(day).padStart(2, '0')}`);
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return WEEK_LABELS[date.getDay()] ?? '';
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}
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/** 判断某日是否为周末 */
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export function isWeekend(yearMonth: string, day: number): boolean {
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const date = new Date(`${yearMonth}-${String(day).padStart(2, '0')}`);
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const week = date.getDay();
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return week === 0 || week === 6;
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}
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/** 生成某月某日的日期字符串 yyyy-MM-dd */
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export function formatDate(yearMonth: string, day: number): string {
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return `${yearMonth}-${String(day).padStart(2, '0')}`;
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}
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/** 自动排班休息模式 */
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export const REST_MODE = {
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/** 双休：周六、周日休息 */
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DOUBLE: 'double',
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/** 单休：周日休息 */
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SINGLE: 'single',
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/** 不休息：每天排班 */
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NONE: 'none',
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} as const;
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export type RestMode = (typeof REST_MODE)[keyof typeof REST_MODE];
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export const REST_MODE_OPTIONS: { label: string; value: RestMode }[] = [
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{ label: '双休（六日休）', value: REST_MODE.DOUBLE },
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{ label: '单休（周日休）', value: REST_MODE.SINGLE },
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{ label: '不休息', value: REST_MODE.NONE },
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];
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