besure_app/src/locales/index.js

import { createI18n } from 'vue-i18n'
import zhCN from './zh-CN'
import enUS from './en-US'

const LOCALE_STORAGE_KEY = 'app_locale'
const LOCALE_CHANGE_EVENT = 'app-locale-changed'
const DEFAULT_LOCALE = 'zh-CN'

const messages = {
  'zh-CN': zhCN,
  'en-US': enUS
}

function normalizeLocale(locale) {
  if (locale === 'zh' || locale === 'zh_CN' || locale === 'zh-Hans') return 'zh-CN'
  if (locale === 'en' || locale === 'en_US') return 'en-US'
  return locale === 'en-US' ? 'en-US' : 'zh-CN'
}

function getSavedLocale() {
  try {
    const locale = uni.getStorageSync(LOCALE_STORAGE_KEY)
    if (locale) {
      return normalizeLocale(locale)
    }
  } catch (error) {
  }
  const systemLocale = typeof uni.getLocale === 'function' ? uni.getLocale() : DEFAULT_LOCALE
  return normalizeLocale(systemLocale)
}

const i18n = createI18n({
  legacy: false,
  locale: getSavedLocale(),
  fallbackLocale: DEFAULT_LOCALE,
  globalInjection: true,
  messages,
  missingWarn: false,
  fallbackWarn: false,
  missing: (locale, key) => key
})

const literalMap = {
  '首页': 'nav.home',
  '报表': 'tab.report',
  '管理': 'tab.work',
  '我的': 'tab.mine',
  '返回': 'dashboard.back',
  '查询': 'functionCommon.search',
  '取消': 'functionCommon.cancel',
  '保存': 'functionCommon.save',
  '加载中...': 'functionCommon.loading',
  '正在加载更多...': 'functionCommon.loadingMore',
  '没有更多数据了': 'functionCommon.noMoreData',
  '缺少ID，无法查看详情': 'functionCommon.noIdView',
  '缺少ID，无法编辑': 'functionCommon.noIdEdit',
  '缺少ID，无法删除': 'functionCommon.noIdDelete',
  '加载失败': 'functionCommon.loadFailed',
  '删除成功': 'functionCommon.deleteSuccess',
  '删除失败': 'functionCommon.deleteFailed',
  '保存失败': 'functionCommon.saveFailed',
  '新增成功': 'functionCommon.createSuccess',
  '更新成功': 'functionCommon.updateSuccess',
  '确认删除': 'functionCommon.confirmDelete',
  '上传中': 'functionCommon.uploading',
  '图片上传失败': 'functionCommon.uploadImageFailed',
  '是': 'functionCommon.yes',
  '否': 'functionCommon.no',
  '暂无待办任务': 'dashboard.noTodo',
  '模具出库': 'moldGet.moduleName',
  '模具出库详情': 'moldGet.detailTitle',
  '模具入库': 'moldReturn.moduleName',
  '模具入库详情': 'moldReturn.detailTitle',
  '上下模': 'moldOperate.moduleName',
  '上下模详情': 'moldOperate.detailTitle',
  '点检项库': 'moldInspectionItems.moduleName',
  '点检项库详情': 'moldInspectionItems.detailTitle',
  '点检模板': 'moldInspectionPlan.moduleName',
  '点检模板详情': 'moldInspectionPlan.detailTitle',
  '点检任务': 'moldTaskConfig.moduleName',
  '点检任务详情': 'moldTaskConfig.detailTitle',
  '点检记录': 'moldWorkOrder.moduleName',
  '点检记录详情': 'moldWorkOrder.detailTitle'
}

function applyTabBarLanguage() {
  try {
    const pages = getCurrentPages()
    if (!pages || pages.length === 0) return
    const currentPage = pages[pages.length - 1]
    if (!currentPage) return
    const route = currentPage.route || ''
    const tabBarPages = ['pages/index', 'pages/report', 'pages/work', 'pages/mine']
    if (!tabBarPages.includes(route)) return

    const labels = [
      i18n.global.t('tab.home'),
      i18n.global.t('tab.report'),
      i18n.global.t('tab.work'),
      i18n.global.t('tab.mine')
    ]
    labels.forEach((text, index) => {
      uni.setTabBarItem({
        index,
        text
      })
    })
  } catch (e) {
  }
}

export function getCurrentLocale() {
  return i18n.global.locale.value
}

export function setLocale(locale) {
  const nextLocale = normalizeLocale(locale)
  i18n.global.locale.value = nextLocale
  uni.setStorageSync(LOCALE_STORAGE_KEY, nextLocale)
  applyTabBarLanguage()
  uni.$emit(LOCALE_CHANGE_EVENT, nextLocale)
  return nextLocale
}

export function translateLiteral(text) {
  if (typeof text !== 'string') return text
  const key = literalMap[text]
  if (key) return i18n.global.t(key)
  return text
}

export function initializeLocale() {
  setLocale(getSavedLocale())
}

export function setNavigationTitle(key) {
  uni.setNavigationBarTitle({
    title: i18n.global.t(key)
  })
}

export function onLocaleChange(callback) {
  uni.$on(LOCALE_CHANGE_EVENT, callback)
}

export function offLocaleChange(callback) {
  uni.$off(LOCALE_CHANGE_EVENT, callback)
}

export default i18n