index.js

import {
  getI18nPropertiesApi
} from "@/api";
import {
  createI18n
} from "vue-i18n";

// 获取当前语言环境
function getLanguage() {
  const storageLang = uni.getStorageSync("lang");
  if (storageLang) {
    return storageLang;
  }
  const systemLang = uni.getSystemInfoSync().language.toLowerCase();

  const languageMap = {
    ja: "ja_JP",
    "ja-jp": "ja_JP",
    en: "en_US",
    "en-us": "en_US",
    "en-gb": "en_US",
    "en-au": "en_US",
    // "zh-tw": "zh_TW",
    // "zh-hk": "zh_TW",
    // "zh-mo": "zh_TW",
    // "zh-hant": "zh_TW",
    // "zh-cn": "zh_CN",
    // "zh-sg": "zh_CN",
    // "zh-hans": "zh_CN",
    // zh: "zh_CN",
  };
  return languageMap[systemLang] || "en_US";
}

export const i18n = createI18n({
  legacy: false,
  locale: getLanguage(),
  fallbackLocale: "en_US",
  messages: {},
  missingWarn: false,
  fallbackWarn: false,
});

export const changeLanguage = async (lang) => {
  try {
    uni.showLoading({
      title: i18n.global.t("navData.load"),
      mask: true,
    });
    uni.setStorageSync("lang", lang);
    await fetchPropertiesFile(lang);
  } catch (e) {
    console.log(e);
  } finally {
    uni.hideLoading();
  }
};

// 更新TabBar文本
export const updateTabBarText = () => {
  const tabbarNameList = [
    "app.tabbar.home",
    "YAP", // 不需要翻译
    "app.tabbar.workbench",
    "app.tabbar.message",
    "app.tabbar.my",
  ];

  tabbarNameList.forEach((item, index) => {
    try {
      uni.setTabBarItem({
        index,
        text: item === "YAP" ? item : i18n.global.t(item),
      });
    } catch (err) {
      console.warn("设置TabBar项目失败:", err);
    }
  });
};

// 解析properties文件
const parseProperties = (text, currentLang) => {
  const jsonObj = {};
  const lines = text.split("\n");

  lines.forEach((line) => {
    if (line && !line.startsWith("#")) {
      const [key, value] = line.split("=");
      if (key) {
        let chineseStr = value || "";
        if (currentLang.indexOf("zh") !== -1) {
          chineseStr = chineseStr.replace(
            /\\u([\dA-Fa-f]{4})/g,
            (match, p1) => {
              return String.fromCharCode(parseInt(p1, 16));
            }
          );
        }
        chineseStr = chineseStr.replace(/\\/g, "");
        jsonObj[key.trim()] = chineseStr;
      }
    }
  });

  return jsonObj;
};
export const fetchPropertiesFile = async (lang) => {
  try {
    const res = await getI18nPropertiesApi(lang);

    const resObj = parseProperties(res, lang);
    i18n.global.setLocaleMessage(lang, resObj);
    i18n.global.locale.value = lang;

    uni.setStorageSync("i18n", JSON.stringify(resObj));
  } catch (e) {
    // 首次加载失败，使用部分默认语言 保证首页正常加载
    const resObj = {
      'app.login.welcome': 'Welcome',
      'rules.loginName': 'Please enter user name',
      'rules.password': 'Please enter password',
      'login.rememberPw': 'Remember Password',
      'login.forgotPassword': 'Forgot Password',
      'app.login.readedAndAgree': 'Read and agree',
      'app.login.privacyAgreement': 'Privacy Agreement',
      'table.language': 'Language',
      'button.nextStep': 'Next Step',
      'message.confirm': 'Confirm',
      'app.login.networkError': 'Network timeout',
      'message.resetPassEnterUserName': 'Enter Your Username and We Will Help You Reset Your Password.',
      'app.login.verifyError': 'Verification failed',
    }
    i18n.global.setLocaleMessage('en_US', resObj);
    i18n.global.locale.value = 'en_US';
    uni.setStorageSync("lang", 'en_US');
    uni.getNetworkType({
      success: function(res) {
        // if (res.networkType !== 'none') {

        // } else {
        //   // openAppSettings()
        // }
        uni.showToast({
          title: 'Network Error',
          icon: "none",
        });
      }
    })
  }
};

// function openAppSettings() {
//   // #ifdef APP-PLUS
//   console.log(plus.os.name);
//   if (plus.os.name === 'iOS') {
//     const UIApplication = plus.ios.import('UIApplication');
//     const NSURL = plus.ios.import('NSURL');
//     const application = UIApplication.sharedApplication();
//     const url = NSURL.URLWithString('app-settings:');
//     if (application.respondsToSelector('openURL:')) {
//       application.openURL(url);
//     }
//     plus.ios.deleteObject(url);
//     plus.ios.deleteObject(NSURL);
//     plus.ios.deleteObject(UIApplication);
//   }
//   // #endif
// }

export const initI18n = async (type = "loadPage") => {
  try {
    const curLang = getLanguage();
    const storageLang = uni.getStorageSync("lang");
    if (!storageLang) {
      uni.setStorageSync("lang", curLang);
    }
    const i18nData = uni.getStorageSync("i18n");
    if (type === "main" || !i18nData) {
      await fetchPropertiesFile(curLang, type);
    } else {
      i18n.global.setLocaleMessage(curLang, JSON.parse(i18nData));
      i18n.global.locale.value = curLang;
    }
  } catch (e) {
    console.log(e);
  } finally {
    // #ifdef APP
    // 1s的延时保证没有页面跳转动画
    setTimeout(() => {
      plus.navigator.closeSplashscreen();
    }, 1000);
    // #endif
  }
};
export const t = i18n.global.t;