format amount split

src/utils/eventValue.ts

@@ -1,4 +1,5 @@
 import type { EventItem } from "@/types/EventItem";
+import { formatCentsAmount } from "@/utils/money";
 
 /**
  * 返回事件数值单位的前端文案。
@@ -82,8 +83,5 @@ export function formatCentValue(value: number): string {
 	if (!Number.isSafeInteger(value) || value < 0) {
 		return "";
 	}
-	const centText = String(value);
-	const yuanText = centText.length < 3 ? "0" : centText.slice(0, -2);
-	const decimalText = centText.slice(-2).padStart(2, "0").replace(/0+$/, "");
-	return `${yuanText}${decimalText ? `.${decimalText}` : ""}`;
+	return formatCentsAmount(value).replace(/\.00$/, "").replace(/(\.\d)0$/, "$1");
 }

src/utils/money.ts

@@ -0,0 +1,36 @@
+/**
+ * 将整数部分按每 4 位分组，适用于中文金额展示。
+ * 例如：999999.99 -> 99,9999.99。
+ */
+export function formatWanInteger(value: number | string): string {
+	const text = String(value).trim();
+	const negative = text.startsWith("-");
+	const integerText = (negative || text.startsWith("+")) ? text.slice(1) : text;
+	const normalizedText = integerText.replace(/^0+(?=\d)/, "") || "0";
+	const groupedText = normalizedText.replace(/\B(?=(\d{4})+(?!\d))/g, ",");
+	return `${negative ? "-" : ""}${groupedText}`;
+}
+
+/** 将整数分转换为带两位小数的金额展示文本。 */
+export function formatCentsAmount(cents?: number | null): string {
+	if (cents === undefined || cents === null || !Number.isFinite(cents)) {
+		return "未设置";
+	}
+
+	const negative = cents < 0;
+	const absolute = Math.abs(Math.trunc(cents));
+	const yuan = Math.floor(absolute / 100);
+	const fen = String(absolute % 100).padStart(2, "0");
+	return `${negative ? "-" : ""}${formatWanInteger(yuan)}.${fen}`;
+}
+
+/** 将元金额转换为按每 4 位分组的展示文本，最多保留两位小数。 */
+export function formatYuanAmount(value?: number | null): string {
+	if (value === undefined || value === null || !Number.isFinite(value)) {
+		return "0";
+	}
+
+	const [integerText, fractionText = ""] = value.toFixed(2).split(".");
+	const normalizedFractionText = fractionText.replace(/0+$/, "");
+	return `${formatWanInteger(integerText)}${normalizedFractionText ? `.${normalizedFractionText}` : ""}`;
+}

src/utils/package.ts

@@ -1,5 +1,6 @@
 import type { PackageConfigStatus } from "@/types/Package";
 import type { FundOperationType, FundRecordStatus } from "@/types/SalesOrder";
+import { formatCentsAmount } from "@/utils/money";
 
 /** 生成套餐业务幂等请求号。每次新操作必须重新生成。 */
 export function createPackageRequestNo(): string {
@@ -8,14 +9,7 @@ export function createPackageRequestNo(): string {
 
 /** 将分转换为金额展示文本，不用浮点数做金额格式化。 */
 export function formatPackageAmount(cents?: number | null): string {
-	if (cents === undefined || cents === null) {
-		return "未设置";
-	}
-	const negative = cents < 0;
-	const absolute = Math.abs(Math.trunc(cents));
-	const yuan = Math.floor(absolute / 100);
-	const fen = String(absolute % 100).padStart(2, "0");
-	return `${negative ? "-" : ""}${yuan}.${fen}`;
+	return formatCentsAmount(cents);
 }
 
 /** 将分转换为金额输入框文本。 */

src/utils/product.ts

@@ -1,5 +1,6 @@
 import type { Product, ProductCategoryStatus, ProductSku, ProductSpec, ProductSpecValue, ProductStatus, ProductType, StockOperationType } from "@/types/Product";
 import { getAttachmentReadURL } from "@/utils/attachment.ts";
+import { formatCentsAmount } from "@/utils/money";
 
 /** 生成产品域写操作的幂等请求号。一次失败重试应复用调用方已经生成的请求号。 */
 export function createProductRequestNo(): string {
@@ -8,13 +9,7 @@ export function createProductRequestNo(): string {
 
 /** 将分转换成金额展示文本。金额不使用浮点数格式化。 */
 export function formatProductAmount(cents?: number | null): string {
-	if (cents === undefined || cents === null) {
-		return "未设置";
-	}
-
-	const negative = cents < 0;
-	const absolute = Math.abs(Math.trunc(cents));
-	return `${negative ? "-" : ""}${Math.floor(absolute / 100)}.${String(absolute % 100).padStart(2, "0")}`;
+	return formatCentsAmount(cents);
 }
 
 /** 将元金额输入精确转换为分。 */