i18n.js

"use strict";

(() => {
  const STORAGE_KEY = "discordExportLanguage";
  const SUPPORTED = new Set(["ru", "en"]);
  const listeners = new Set();

  const messages = {
    ru: {
      "app.subtitle": "Сообщения и вложения",
      "language.label": "Язык интерфейса",
      "connection.caption": "Подключение",
      "connection.refresh": "Обновить",
      "source.title": "Источник",
      "source.subtitle": "Выберите, откуда взять сообщения",
      "source.mode": "Режим экспорта",
      "source.current": "Открытый чат или канал",
      "source.dm": "Личный чат",
      "source.server": "Сервер или канал",
      "source.currentOpen": "Сейчас открыт",
      "source.openDiscord": "Открой нужный чат в Discord",
      "source.openDiscordFull": "Открой нужный чат или канал в Discord",
      "source.discordTabMissing": "Вкладка Discord не найдена",
      "source.dms": "Личные чаты",
      "source.guilds": "Серверы",
      "source.refreshList": "Обновить список",
      "source.dmAria": "Личный чат",
      "source.guildAria": "Сервер",
      "source.channelAria": "Канал",
      "source.loadList": "Сначала загрузите список",
      "source.loadGuilds": "Сначала загрузите серверы",
      "source.chooseDm": "Выберите личный чат",
      "source.noDms": "Личные чаты не найдены",
      "source.chooseGuild": "Выберите сервер",
      "source.noGuilds": "Серверы не найдены",
      "source.loading": "Загрузка…",
      "source.loadingChannels": "Загрузка каналов…",
      "source.chooseChannel": "Выберите канал или весь сервер",
      "source.wholeServer": "Весь сервер ({count} каналов)",
      "source.thread": "ветка",
      "source.serverHint": "Весь сервер включает видимые каналы и активные ветки.",
      "source.channelFallback": "Канал {id}",
      "period.title": "Период",
      "period.subtitle": "Начальная и конечная даты включительно",
      "period.start": "Начало",
      "period.end": "Конец",
      "period.allHistory": "Вся доступная история",
      "period.fullHistory": "Будет экспортирована вся история",
      "period.invalid": "Период задан некорректно",
      "period.oneDay": "Выбран один календарный день",
      "period.days": "Выбрано: {count} {unit}",
      "period.day.one": "день",
      "period.day.few": "дня",
      "period.day.many": "дней",
      "action.export": "Экспортировать",
      "action.preparing": "Подготавливаю…",
      "action.pause": "Пауза",
      "action.continue": "Продолжить",
      "action.stop": "Остановить",
      "action.downloadAttachments": "Скачать вложения",
      "auth.checking": "Проверяю Discord…",
      "auth.openTab": "Открой discord.com в отдельной вкладке",
      "auth.reloaded": "Discord обновлён — подожди пару секунд",
      "auth.failed": "Не удалось подключиться. Обнови Discord и открой любой чат",
      "auth.ready": "Discord подключён",
      "error.discordTabMissing": "Вкладка Discord не найдена.",
      "error.notConnected": "Discord ещё не подключён. Обнови вкладку.",
      "error.api": "Ошибка Discord API",
      "error.endDate": "Выберите конечную дату.",
      "error.startDate": "Выберите начальную дату.",
      "error.dateOrder": "Конец периода должен быть позже начала.",
      "error.openSource": "Сначала открой нужный чат или канал в Discord.",
      "error.chooseDm": "Выберите личный чат.",
      "error.chooseGuild": "Выберите сервер.",
      "error.chooseChannel": "Выберите канал или весь сервер.",
      "error.channelMissing": "Выбранный канал не найден.",
      "error.discordDisconnected": "Discord не подключён.",
      "error.createExport": "Не удалось создать экспорт.",
      "export.documentTitle": "Экспорт Discord",
      "export.preparing": "Подготовка экспорта…",
      "export.status": "Состояние",
      "export.loadingSettings": "Загружаю настройки…",
      "export.preparingMessages": "Подготавливаю список сообщений…",
      "export.progress": "Прогресс",
      "export.messages": "Сообщения",
      "export.attachments": "Вложения",
      "export.requests": "Запросы",
      "export.sources": "Источники",
      "export.dialog": "Диалог",
      "export.dialogs": "Диалоги",
      "export.channel": "Канал",
      "export.channels": "Каналы",
      "export.result": "Результат",
      "export.files": "Файлы экспорта",
      "export.filesHelp": "Станут доступны после завершения или остановки экспорта.",
      "export.errors": "Пропущенные каналы и ошибки",
      "badge.running": "Работает",
      "badge.paused": "Пауза",
      "badge.done": "Готово",
      "badge.error": "Ошибка",
      "status.rateLimited": "Discord ограничил частоту запросов",
      "status.retryAfter": "Продолжу автоматически через {seconds} сек.",
      "status.networkError": "Временная ошибка сети",
      "status.retry": "Повтор {attempt}/3 через 2 секунды…",
      "status.loadingSource": "Загружаю {name}",
      "status.sourcePage": "{source} {current} из {total}, страница {page}",
      "status.stopped": "Экспорт остановлен",
      "status.partial": "Можно скачать частичный результат: {count} сообщений.",
      "status.completed": "Экспорт завершён",
      "status.received": "Получено {count} сообщений.",
      "status.paused": "Экспорт на паузе",
      "status.pauseHelp": "Текущий запрос завершится, новые запросы пока не отправляются.",
      "status.resuming": "Продолжаю экспорт",
      "status.resumeHelp": "Загрузка сообщений возобновлена.",
      "status.stopping": "Останавливаю экспорт…",
      "status.stopHelp": "После текущего запроса будет доступен частичный результат.",
      "status.failed": "Экспорт завершился с ошибкой",
      "status.attachmentsProgress": "Вложения {current}/{total}",
      "error.connectionLost": "Соединение с Discord потеряно. Обнови вкладку и запусти экспорт заново.",
      "error.unexpectedMessages": "Discord вернул неожиданный формат сообщений.",
      "error.attachment": "{filename}: не удалось скачать ({message})",
      "error.attachments": "Вложения: {message}",
      "error.jobId": "В URL отсутствует идентификатор экспорта.",
      "error.jobMissing": "Задание экспорта не найдено. Открой popup расширения и запусти его заново."
    },
    en: {
      "app.subtitle": "Messages and attachments",
      "language.label": "Interface language",
      "connection.caption": "Connection",
      "connection.refresh": "Refresh",
      "source.title": "Source",
      "source.subtitle": "Choose where to export messages from",
      "source.mode": "Export mode",
      "source.current": "Open chat or channel",
      "source.dm": "Direct message",
      "source.server": "Server or channel",
      "source.currentOpen": "Currently open",
      "source.openDiscord": "Open a chat in Discord",
      "source.openDiscordFull": "Open the required chat or channel in Discord",
      "source.discordTabMissing": "Discord tab not found",
      "source.dms": "Direct messages",
      "source.guilds": "Servers",
      "source.refreshList": "Refresh list",
      "source.dmAria": "Direct message",
      "source.guildAria": "Server",
      "source.channelAria": "Channel",
      "source.loadList": "Load the list first",
      "source.loadGuilds": "Load servers first",
      "source.chooseDm": "Choose a direct message",
      "source.noDms": "No direct messages found",
      "source.chooseGuild": "Choose a server",
      "source.noGuilds": "No servers found",
      "source.loading": "Loading…",
      "source.loadingChannels": "Loading channels…",
      "source.chooseChannel": "Choose a channel or the whole server",
      "source.wholeServer": "Whole server ({count} channels)",
      "source.thread": "thread",
      "source.serverHint": "The whole server includes visible channels and active threads.",
      "source.channelFallback": "Channel {id}",
      "period.title": "Date range",
      "period.subtitle": "Start and end dates are inclusive",
      "period.start": "Start",
      "period.end": "End",
      "period.allHistory": "All available history",
      "period.fullHistory": "All available history will be exported",
      "period.invalid": "The selected date range is invalid",
      "period.oneDay": "One calendar day selected",
      "period.days": "Selected: {count} days",
      "period.day.one": "day",
      "period.day.few": "days",
      "period.day.many": "days",
      "action.export": "Export",
      "action.preparing": "Preparing…",
      "action.pause": "Pause",
      "action.continue": "Resume",
      "action.stop": "Stop",
      "action.downloadAttachments": "Download attachments",
      "auth.checking": "Checking Discord…",
      "auth.openTab": "Open discord.com in another tab",
      "auth.reloaded": "Discord refreshed — wait a couple of seconds",
      "auth.failed": "Could not connect. Refresh Discord and open any chat",
      "auth.ready": "Discord connected",
      "error.discordTabMissing": "Discord tab not found.",
      "error.notConnected": "Discord is not connected yet. Refresh the tab.",
      "error.api": "Discord API error",
      "error.endDate": "Choose an end date.",
      "error.startDate": "Choose a start date.",
      "error.dateOrder": "The end date must be later than the start date.",
      "error.openSource": "Open the required chat or channel in Discord first.",
      "error.chooseDm": "Choose a direct message.",
      "error.chooseGuild": "Choose a server.",
      "error.chooseChannel": "Choose a channel or the whole server.",
      "error.channelMissing": "The selected channel was not found.",
      "error.discordDisconnected": "Discord is not connected.",
      "error.createExport": "Could not create the export.",
      "export.documentTitle": "Discord Export",
      "export.preparing": "Preparing export…",
      "export.status": "Status",
      "export.loadingSettings": "Loading settings…",
      "export.preparingMessages": "Preparing the message list…",
      "export.progress": "Progress",
      "export.messages": "Messages",
      "export.attachments": "Attachments",
      "export.requests": "Requests",
      "export.sources": "Sources",
      "export.dialog": "Conversation",
      "export.dialogs": "Conversations",
      "export.channel": "Channel",
      "export.channels": "Channels",
      "export.result": "Result",
      "export.files": "Export files",
      "export.filesHelp": "Available after the export is finished or stopped.",
      "export.errors": "Skipped channels and errors",
      "badge.running": "Running",
      "badge.paused": "Paused",
      "badge.done": "Done",
      "badge.error": "Error",
      "status.rateLimited": "Discord rate limit reached",
      "status.retryAfter": "Continuing automatically in {seconds}s.",
      "status.networkError": "Temporary network error",
      "status.retry": "Retry {attempt}/3 in 2 seconds…",
      "status.loadingSource": "Loading {name}",
      "status.sourcePage": "{source} {current} of {total}, page {page}",
      "status.stopped": "Export stopped",
      "status.partial": "You can download a partial result: {count} messages.",
      "status.completed": "Export complete",
      "status.received": "Downloaded {count} messages.",
      "status.paused": "Export paused",
      "status.pauseHelp": "The current request will finish; new requests are paused.",
      "status.resuming": "Resuming export",
      "status.resumeHelp": "Message loading has resumed.",
      "status.stopping": "Stopping export…",
      "status.stopHelp": "A partial result will be available after the current request.",
      "status.failed": "Export failed",
      "status.attachmentsProgress": "Attachments {current}/{total}",
      "error.connectionLost": "The Discord connection was lost. Refresh the tab and start the export again.",
      "error.unexpectedMessages": "Discord returned an unexpected message format.",
      "error.attachment": "{filename}: download failed ({message})",
      "error.attachments": "Attachments: {message}",
      "error.jobId": "The export job ID is missing from the URL.",
      "error.jobMissing": "Export job not found. Open the extension popup and start it again."
    }
  };

  let language = "ru";
  let initialized = false;

  function normalizeLanguage(value) {
    return SUPPORTED.has(value) ? value : "ru";
  }

  function t(key, parameters = {}) {
    const template =
      messages[language]?.[key] ?? messages.ru[key] ?? String(key);
    return template.replace(/\{(\w+)\}/g, (_, name) =>
      parameters[name] == null ? `{${name}}` : String(parameters[name])
    );
  }

  function locale() {
    return language === "en" ? "en-US" : "ru-RU";
  }

  function apply(root = document) {
    root.documentElement.lang = language;
    for (const element of root.querySelectorAll("[data-i18n]")) {
      element.textContent = t(element.dataset.i18n);
    }
    for (const element of root.querySelectorAll("[data-i18n-title]")) {
      element.title = t(element.dataset.i18nTitle);
    }
    for (const element of root.querySelectorAll("[data-i18n-aria-label]")) {
      element.setAttribute("aria-label", t(element.dataset.i18nAriaLabel));
    }
    for (const button of root.querySelectorAll("[data-language]")) {
      const active = button.dataset.language === language;
      button.classList.toggle("active", active);
      button.setAttribute("aria-pressed", String(active));
    }
  }

  function notify() {
    apply();
    for (const listener of listeners) {
      listener(language);
    }
  }

  async function setLanguage(value, { persist = true } = {}) {
    const next = normalizeLanguage(value);
    const changed = next !== language;
    language = next;
    if (persist) {
      await chrome.storage.local.set({ [STORAGE_KEY]: language });
    }
    if (changed || initialized) {
      notify();
    }
  }

  async function initialize(preferredLanguage) {
    if (initialized) {
      apply();
      return language;
    }

    let storedLanguage = preferredLanguage;
    if (!storedLanguage) {
      const stored = await chrome.storage.local.get(STORAGE_KEY);
      storedLanguage = stored[STORAGE_KEY];
    }
    language = normalizeLanguage(
      storedLanguage ||
        (String(navigator.language || "").toLowerCase().startsWith("ru")
          ? "ru"
          : "en")
    );

    for (const button of document.querySelectorAll("[data-language]")) {
      button.addEventListener("click", () => {
        void setLanguage(button.dataset.language);
      });
    }

    initialized = true;
    notify();
    return language;
  }

  function onChange(listener) {
    listeners.add(listener);
    return () => listeners.delete(listener);
  }

  window.DiscordExportI18n = {
    initialize,
    locale,
    onChange,
    setLanguage,
    t,
    get language() {
      return language;
    }
  };
})();