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/**
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* Flock Freight 官网硬限（PRD §14.3，2026-07-13 实测）
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* 禁止与 MOTHERSHIP / CARGO_LIMITS 混用
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*
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* 字段上限之外另有拖车线性英尺约束：
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* 「Linear feet of shipment is larger than trailer」→ 53' (636 in)
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*/
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export const FLOCK_LIMITS = {
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palletCount: { min: 4, max: 20 },
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totalWeightLbMax: 45_000,
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dimIn: { lengthMax: 636, widthMax: 102, heightMax: 108, min: 1 },
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/** 53' 拖车可用线性英尺（官网实测） */
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trailerLinearFeetMax: 53,
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/** 调度高级选项（非 FCFS）须整票总重 > 此值才可选用，对齐官网灰色按钮 */
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schedulingWeightMinLb: 5000,
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zipPattern: /^\d{5}(-\d{4})?$/,
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defaultDimsIn: { length: 48, width: 40, height: 48 },
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} as const;
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export const FLOCK_VALIDATION_MESSAGES = {
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palletCount: "托盘件数只能输入 4 到 20",
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totalWeight: "整票总重不能超过 45000 lb",
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length: "单托长度不能超过 636 in",
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width: "单托宽度不能超过 102 in",
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height: "单托高度不能超过 108 in",
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linearFeet:
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"整票占用车长超过可用挂车长度，请下调件数或尺寸。",
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pickupZip: "需要提供提货邮编",
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deliveryZip: "需要提供派送邮编",
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pickupDate: "请选择提货日期",
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pickupDateTooEarly: "提货日期不能早于今天",
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pickupDateWeekend: "提货日期不能为周六或周日",
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zipFormat: "邮编须为 5 位数字（可选 +4）",
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} as const;
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/**
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* 估算占用线性英尺：拖车宽约 102in，托盘宽 ≤51 可双排，否则单排。
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* rows × (lengthIn/12) ≤ 53
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*/
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export function estimateFlockLinearFeet(
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palletCount: number,
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lengthIn: number,
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widthIn: number,
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): number {
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const across = widthIn <= 51 ? 2 : 1;
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const rows = Math.ceil(Math.max(1, palletCount) / across);
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return (rows * Math.max(1, lengthIn)) / 12;
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}
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export function fitsFlockTrailerCargo(input: {
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palletCount: number;
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lengthIn: number;
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widthIn: number;
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}): boolean {
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return (
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estimateFlockLinearFeet(
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input.palletCount,
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input.lengthIn,
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input.widthIn,
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) <= FLOCK_LIMITS.trailerLinearFeetMax + 1e-6
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);
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}
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