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import { FLOCK_VALIDATION_MESSAGES } from "@/lib/constants/flock-limits";
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import {
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defaultMothershipReadyDateIso,
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isMothershipWeekendIso,
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parseIsoDateLocal,
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snapMothershipReadyDateToWeekday,
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toIsoDateLocal,
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} from "@/lib/mothership/logged-in-constraints";
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const ISO_DATE_RE = /^\d{4}-\d{2}-\d{2}$/;
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const ISO_DATE_CAPTURE_RE = /^(\d{4})-(\d{2})-(\d{2})$/;
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const DISPLAY_DATE_RE = /^(\d{2})\/(\d{2})\/(\d{4})$/;
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/** 本地日历最早可选日：今天（若为周末则拨到周一），PRD §14.3 */
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export function minFlockPickupDateIso(): string {
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return defaultMothershipReadyDateIso();
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}
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export function flockPickupIsoFromDisplay(display: string): string | null {
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const trimmed = display.trim();
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const m = DISPLAY_DATE_RE.exec(trimmed);
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if (!m) return null;
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return `${m[3]}-${m[1]}-${m[2]}`;
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}
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export function isFlockPickupDateOnOrAfterToday(iso: string): boolean {
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if (!ISO_DATE_RE.test(iso)) return false;
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return iso >= minFlockPickupDateIso();
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}
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export function flockPickupDateValidationMessageFromIso(
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iso: string,
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): string | null {
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if (!iso.trim()) {
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return FLOCK_VALIDATION_MESSAGES.pickupDate;
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}
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if (!ISO_DATE_RE.test(iso)) {
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return FLOCK_VALIDATION_MESSAGES.pickupDate;
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}
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if (!isFlockPickupDateOnOrAfterToday(iso)) {
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return FLOCK_VALIDATION_MESSAGES.pickupDateTooEarly;
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}
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if (isMothershipWeekendIso(iso)) {
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return FLOCK_VALIDATION_MESSAGES.pickupDateWeekend;
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}
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return null;
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}
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export function flockPickupDateValidationMessageFromDisplay(
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display: string,
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): string | null {
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if (!DISPLAY_DATE_RE.test(display.trim())) {
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return FLOCK_VALIDATION_MESSAGES.pickupDate;
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}
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const iso = flockPickupIsoFromDisplay(display);
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if (!iso) {
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return FLOCK_VALIDATION_MESSAGES.pickupDate;
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}
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if (!isFlockPickupDateOnOrAfterToday(iso)) {
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return FLOCK_VALIDATION_MESSAGES.pickupDateTooEarly;
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}
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if (isMothershipWeekendIso(iso)) {
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return FLOCK_VALIDATION_MESSAGES.pickupDateWeekend;
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}
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return null;
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}
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export function flockPickupDisplayFromIso(iso: string): string {
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const m = ISO_DATE_CAPTURE_RE.exec(iso.trim());
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if (!m) return iso;
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return `${m[2]}/${m[3]}/${m[1]}`;
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}
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/** 表单默认取货日：最早可选日的下一工作日 */
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export function defaultFlockPickupDateIso(): string {
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const min = parseIsoDateLocal(minFlockPickupDateIso()) ?? new Date();
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min.setDate(min.getDate() + 1);
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return snapMothershipReadyDateToWeekday(toIsoDateLocal(min));
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}
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