修复bug

utils/danaPaymentConfig.js

@@ -0,0 +1,79 @@
+import { getSystemConfig } from '@/config/api/system.js'
+
+/** 系统配置项 key（与后台一致） */
+export const DANA_TOTAL_CONFIG_KEY = 'overseas_payment_dana_total'
+export const DANA_SINGLE_CONFIG_KEY = 'overseas_payment_dana_single'
+
+/** 本地缓存 key */
+export const DANA_TOTAL_STORAGE_KEY = 'danaPaymentTotal'
+export const DANA_SINGLE_STORAGE_KEY = 'danaPaymentSingle'
+
+/** 写入缓存的金额结构（与业务侧约定一致） */
+const wrapStorageNumber = (n) => ({ type: 'number', data: n })
+
+/**
+ * 从本地缓存读取 DANA 金额；兼容 { type, data }、JSON 字符串、纯数字。
+ */
+export function parseDanaStorageNumber(raw) {
+	if (raw === null || raw === undefined || raw === '') return null
+	let value = raw
+	if (typeof raw === 'string') {
+		const trimmed = raw.trim()
+		if (trimmed.startsWith('{')) {
+			try {
+				const parsed = JSON.parse(trimmed)
+				if (parsed && typeof parsed === 'object' && 'data' in parsed) {
+					value = parsed.data
+				} else {
+					value = parsed
+				}
+			} catch {
+				value = raw
+			}
+		}
+	} else if (typeof raw === 'object' && raw !== null && 'data' in raw) {
+		value = raw.data
+	}
+	const num = Number(value)
+	return Number.isFinite(num) ? num : null
+}
+
+const parseConfigNumber = (rawValue) => {
+	if (rawValue === null || rawValue === undefined) return null
+	const cleaned = String(rawValue).replace(/[^0-9.]/g, '')
+	if (!cleaned) return null
+	const num = Number(cleaned)
+	return Number.isFinite(num) ? num : null
+}
+
+const extractConfigValue = (res, configKey) => {
+	if (!res || res.code !== 200) return null
+	const row = (res.rows || []).find((item) => item && item.configKey === configKey)
+	if (row && row.configValue !== undefined) return row.configValue
+	return null
+}
+
+/**
+ * 拉取 DANA 预扣款 / 单次扣款配置并写入本地缓存。
+ * 用于首页及「直达」设备详情、订单详情、支付页等场景，避免仅依赖首页拉取。
+ */
+export async function fetchAndCacheDanaPaymentConfig() {
+	const [totalRes, singleRes] = await Promise.all([
+		getSystemConfig({ configKey: DANA_TOTAL_CONFIG_KEY }),
+		getSystemConfig({ configKey: DANA_SINGLE_CONFIG_KEY })
+	])
+
+	const totalRaw = extractConfigValue(totalRes, DANA_TOTAL_CONFIG_KEY)
+	const singleRaw = extractConfigValue(singleRes, DANA_SINGLE_CONFIG_KEY)
+	const totalValue = parseConfigNumber(totalRaw)
+	const singleValue = parseConfigNumber(singleRaw)
+
+	if (totalValue !== null) {
+		uni.setStorageSync(DANA_TOTAL_STORAGE_KEY, wrapStorageNumber(totalValue))
+	}
+	if (singleValue !== null) {
+		uni.setStorageSync(DANA_SINGLE_STORAGE_KEY, wrapStorageNumber(singleValue))
+	}
+
+	return { totalValue, singleValue }
+}