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美国版/Food Labeling Management Platform/src/lib/labelFormDatePreview.ts 6.27 KB
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  import type { LabelElement } from "../types/labelTemplate";
  import { canonicalElementType, isDateTimeDataEntryField } from "../types/labelTemplate";
  
  /**
   * 标签创建/编辑表单:相对时间偏移 + 按模板 format 预览(与 LabelCanvas formatDateByPreset 对齐)
   */
  
  export const LABEL_FORM_OFFSET_UNITS = [
    "Minutes",
    "Hours",
    "Days",
    "Weeks",
    "Months (30 Day)",
    "Years",
  ] as const;
  
  export type LabelFormOffsetUnit = (typeof LABEL_FORM_OFFSET_UNITS)[number];
  
  export function applyOffsetToDate(base: Date, amount: number, unit: string): Date {
    const d = new Date(base.getTime());
    const u = String(unit ?? "").trim();
    switch (u) {
      case "Minutes":
        d.setMinutes(d.getMinutes() + amount);
        break;
      case "Hours":
        d.setHours(d.getHours() + amount);
        break;
      case "Days":
        d.setDate(d.getDate() + amount);
        break;
      case "Weeks":
        d.setDate(d.getDate() + amount * 7);
        break;
      case "Months (30 Day)":
        d.setDate(d.getDate() + amount * 30);
        break;
      case "Years":
        d.setFullYear(d.getFullYear() + amount);
        break;
      default:
        d.setDate(d.getDate() + amount);
    }
    return d;
  }
  
  /** 与 LabelCanvas 中 formatDateByPreset 一致 */
  export function formatDateByPreset(format: string, date: Date): string {
    const yyyy = String(date.getFullYear());
    const yy = yyyy.slice(-2);
    const mm = String(date.getMonth() + 1).padStart(2, "0");
    const dd = String(date.getDate()).padStart(2, "0");
    const hh = String(date.getHours()).padStart(2, "0");
    const min = String(date.getMinutes()).padStart(2, "0");
    const monthLong = date.toLocaleString("en-US", { month: "long" }).toUpperCase();
    const dayLong = date.toLocaleString("en-US", { weekday: "long" }).toUpperCase();
    const dayShort = date.toLocaleString("en-US", { weekday: "short" }).toUpperCase();
    const monthShort = date.toLocaleString("en-US", { month: "short" }).toUpperCase();
    switch (format) {
      case "DD/MM/YYYY":
        return `${dd}/${mm}/${yyyy}`;
      case "MM/DD/YYYY":
        return `${mm}/${dd}/${yyyy}`;
      case "DD/MM/YY":
        return `${dd}/${mm}/${yy}`;
      case "MM/DD/YY":
        return `${mm}/${dd}/${yy}`;
      case "MM/YY":
        return `${mm}/${yy}`;
      case "MM/DD":
        return `${mm}/${dd}`;
      case "MM":
        return mm;
      case "DD":
        return dd;
      case "YY":
        return yy;
      case "FULLY DAY(WEDNESDAY)":
        return dayLong;
      case "DAY (WED)":
        return dayShort;
      case "MONTH (DECEMBER)":
        return monthLong;
      case "YEAR (2025)":
        return yyyy;
      case "DD MONTH YEAR (25 DECEMBER 2025)":
        return `${dd} ${monthLong} ${yyyy}`;
      default:
        return format
          .replace(/YYYY/g, yyyy)
          .replace(/YY/g, yy)
          .replace(/MM/g, mm)
          .replace(/DD/g, dd)
          .replace(/HH/g, hh)
          .replace(/mm/g, min);
    }
  }
  
  const OFFSET_UNIT_SET = new Set<string>(LABEL_FORM_OFFSET_UNITS as unknown as string[]);
  
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  export type NormalizedLabelFormOffset =
    | { kind: "zero" }
    | { kind: "amount"; amount: number; storeValue: string }
    | { kind: "invalid" };
  
  /**
   * 创建/编辑标签表单:日期时间类偏移的**空串**或**数值 0**(含 0、0.0、+0 等)均视为相对基准偏移 0;
   * 预览即「当前基准时刻」;落库建议用 {@link serializePrintInputOffset}(unit, "0")。
   */
  export function normalizeLabelFormOffsetInput(valueRaw: string | undefined): NormalizedLabelFormOffset {
    const t = String(valueRaw ?? "").trim();
    if (t === "") return { kind: "zero" };
    const n = Number(t);
    if (!Number.isFinite(n)) return { kind: "invalid" };
    if (n === 0) return { kind: "zero" };
    return { kind: "amount", amount: n, storeValue: t };
  }
  
699ea6e8   杨鑫   完善打印逻辑
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  /**
   * 模板 productDefault 中日期/时间/时长录入:存 `{"unit":"Days","value":"2"}`,供 App 与打印按 BaseTime 解析。
   */
  export function serializePrintInputOffset(unit: string, value: string): string {
    const u = String(unit ?? "").trim() || "Days";
    return JSON.stringify({ unit: u, value: String(value ?? "") });
  }
  
  export function tryParsePrintInputOffsetStored(
    raw: string | null | undefined,
  ): { unit: string; value: string } | null {
    const t = String(raw ?? "").trim();
    if (!t.startsWith("{")) return null;
    try {
      const o = JSON.parse(t) as unknown;
      if (o == null || typeof o !== "object" || Array.isArray(o)) return null;
      const rec = o as Record<string, unknown>;
      const unit = String(rec.unit ?? rec.Unit ?? "").trim();
      const value = String(rec.value ?? rec.Value ?? "");
      if (!unit || !OFFSET_UNIT_SET.has(unit)) return null;
      return { unit, value };
    } catch {
      return null;
    }
  }
  
  /** 批量录入格:无 JSON 时纯数字按 Days 预填,便于兼容旧 duration 整数 */
  export function offsetFieldUiStateFromStored(stored: string | undefined): { unit: string; value: string } {
    const p = tryParsePrintInputOffsetStored(stored);
    if (p) return p;
    const t = String(stored ?? "").trim();
    if (/^\d+$/.test(t)) return { unit: "Days", value: t };
    return { unit: "Days", value: "" };
  }
  
  /**
   * 将落库的 JSON(或旧版纯文案)解析为画布/预览用的展示字符串(相对 base 时间)。
   */
  export function resolveStoredPrintValueToDisplayText(
    el: LabelElement,
    stored: string,
    base: Date,
  ): string {
    const s = String(stored ?? "").trim();
    if (!s) return "";
    if (!isDateTimeDataEntryField(el)) return s;
    const parsed = tryParsePrintInputOffsetStored(s);
    if (!parsed) return s;
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    const unit = parsed.unit || "Days";
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    const norm = normalizeLabelFormOffsetInput(parsed.value);
    if (norm.kind === "invalid") return s;
    const amount = norm.kind === "zero" ? 0 : norm.amount;
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    const type = canonicalElementType(el.type);
    const d = applyOffsetToDate(base, amount, unit);
    const cfg = el.config as Record<string, unknown>;
    if (type === "DATE") {
      const it = String(cfg.inputType ?? cfg.InputType ?? "").toLowerCase();
      const format =
        (typeof cfg.format === "string" && cfg.format.trim()
          ? cfg.format
          : typeof cfg.Format === "string" && cfg.Format.trim()
            ? cfg.Format
            : it === "datetime"
              ? "YYYY-MM-DD HH:mm"
              : "DD/MM/YYYY") ?? "DD/MM/YYYY";
      return formatDateByPreset(format, d);
    }
    if (type === "TIME") {
      return formatDateByPreset("HH:mm", d);
    }
    return `${amount} ${unit}`;
  }