@ui18n/svelte/dist/standalone.mjs

🧡 Lightning-fast Svelte internationalization with reactive stores, SvelteKit support, and zero-bundle overhead

import { writable, derived, get } from 'svelte/store';
import { createUI18n } from '@ui18n/core';
export { createUI18n } from '@ui18n/core';

/**
 * 创建UI18n Store
 */
function createUI18nStore(config) {
    // 创建UI18n核心实例
    const ui18nInstance = createUI18n(config);
    // 创建响应式stores
    const currentLanguage = writable(config.defaultLanguage);
    const loading = writable(false);
    const error = writable(null);
    // 高级功能stores
    const batchState = writable({
        translations: {},
        translationArray: [],
        loading: false,
        error: null,
        progress: 0,
        completedCount: 0,
        totalCount: 0,
        failedTexts: []
    });
    const realTimeSyncStatus = writable({
        enabled: false,
        connected: false,
        method: 'polling',
        syncErrors: 0
    });
    const cacheStats = writable(null);
    const syncErrors = writable(0);
    // 创建派生store，包含所有状态
    const store = derived([currentLanguage, loading, error, batchState, realTimeSyncStatus, cacheStats, syncErrors], ([$currentLanguage, $loading, $error, $batchState, $realTimeSyncStatus, $cacheStats, $syncErrors]) => ({
        ui18n: ui18nInstance,
        currentLanguage: $currentLanguage,
        loading: $loading,
        error: $error,
        batchState: $batchState,
        realTimeSyncStatus: $realTimeSyncStatus,
        cacheStats: $cacheStats,
        syncErrors: $syncErrors
    }));
    /**
     * 切换语言
     */
    const setLanguage = async (language) => {
        try {
            loading.set(true);
            error.set(null);
            await ui18nInstance.setLanguage(language);
            currentLanguage.set(language);
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : '语言切换失败';
            error.set(errorMessage);
            console.error('UI18n语言切换失败:', err);
        }
        finally {
            loading.set(false);
        }
    };
    /**
     * 翻译文本
     */
    const translate = async (text, options = {}) => {
        try {
            loading.set(true);
            error.set(null);
            const targetLanguage = (options && options['language']) || get(currentLanguage);
            const result = await ui18nInstance.translate(text, targetLanguage, {
                context: options && options['context']
            });
            return result.text;
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : '翻译失败';
            error.set(errorMessage);
            console.error('UI18n翻译失败:', err);
            return text; // 翻译失败时返回原文
        }
        finally {
            loading.set(false);
        }
    };
    /**
     * 批量翻译（基础版本）
     */
    const translateBatch = async (texts, options = {}) => {
        try {
            loading.set(true);
            error.set(null);
            const targetLanguage = options.language || get(currentLanguage);
            const results = await ui18nInstance.translateBatch(texts, targetLanguage, {
                context: options.context,
                maxConcurrency: options.maxConcurrency
            });
            return results;
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : '批量翻译失败';
            error.set(errorMessage);
            console.error('UI18n批量翻译失败:', err);
            throw err;
        }
        finally {
            loading.set(false);
        }
    };
    /**
     * 智能批量翻译（增强版本）
     */
    const translateBatchOptimized = async (texts, options = {}) => {
        const { language, context, maxConcurrency, priority = 'normal', useOptimizer = true, enableProgressTracking = true } = options;
        const targetLanguage = language || get(currentLanguage);
        try {
            if (enableProgressTracking) {
                batchState.update(state => ({ ...state, loading: true, progress: 0, error: null }));
            }
            let results;
            if (useOptimizer) {
                // 使用智能批量优化器
                results = await ui18nInstance.translateBatch(texts, targetLanguage, {
                    context,
                    maxConcurrency,
                    useOptimizer: true,
                    priority: priority
                });
            }
            else {
                // 传统批量翻译
                results = await ui18nInstance.translateBatch(texts, targetLanguage, {
                    context,
                    maxConcurrency
                });
            }
            if (enableProgressTracking) {
                // 构建翻译映射和数组
                const translations = {};
                const translationArray = [];
                results.forEach((result, index) => {
                    const originalText = texts[index];
                    const translatedText = result.text;
                    translations[originalText] = translatedText;
                    translationArray.push(translatedText);
                });
                batchState.set({
                    translations,
                    translationArray,
                    loading: false,
                    error: null,
                    progress: 1,
                    completedCount: results.length,
                    totalCount: texts.length,
                    failedTexts: []
                });
            }
            return results;
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : '批量翻译失败';
            if (enableProgressTracking) {
                batchState.update(state => ({ ...state, loading: false, error: errorMessage, progress: 0 }));
            }
            console.error('UI18n智能批量翻译失败:', err);
            throw err;
        }
    };
    /**
     * 获取语言显示名称
     */
    const getLanguageDisplayName = (language, displayLanguage) => {
        const displayLang = displayLanguage || get(currentLanguage);
        return ui18nInstance.getLanguageDisplayName(language, displayLang);
    };
    /**
     * 检测并设置系统语言
     */
    const detectAndSetSystemLanguage = async () => {
        try {
            ui18nInstance.detectAndSetSystemLanguage();
            const newLanguage = ui18nInstance.getCurrentLanguage();
            if (newLanguage !== get(currentLanguage)) {
                currentLanguage.set(newLanguage);
            }
        }
        catch (err) {
            console.warn('系统语言检测失败:', err);
        }
    };
    /**
     * 搜索语言
     */
    const searchLanguages = (query, availableLanguages) => {
        if (!query.trim()) {
            return [];
        }
        const searchTerm = query.toLowerCase();
        const currentLang = get(currentLanguage);
        return availableLanguages.filter((lang) => {
            const displayName = getLanguageDisplayName(lang, currentLang).toLowerCase();
            const nativeName = getLanguageDisplayName(lang, lang).toLowerCase();
            const langCode = lang.toLowerCase();
            return displayName.includes(searchTerm) ||
                nativeName.includes(searchTerm) ||
                langCode.includes(searchTerm);
        });
    };
    /**
     * 连接实时同步
     */
    const connectRealTimeSync = async (options = {}) => {
        try {
            const versionControlManager = ui18nInstance.versionControlManager;
            if (versionControlManager && versionControlManager.reconnectRealTimeSync) {
                const success = await versionControlManager.reconnectRealTimeSync();
                updateRealTimeSyncStatus();
                return success;
            }
            return false;
        }
        catch (err) {
            console.error('连接实时同步失败:', err);
            syncErrors.update(count => count + 1);
            return false;
        }
    };
    /**
     * 断开实时同步
     */
    const disconnectRealTimeSync = () => {
        try {
            const versionControlManager = ui18nInstance.versionControlManager;
            if (versionControlManager) {
                console.log('断开实时同步连接');
                updateRealTimeSyncStatus();
            }
        }
        catch (err) {
            console.error('断开实时同步失败:', err);
        }
    };
    /**
     * 手动同步
     */
    const manualSync = async (language) => {
        try {
            const versionControlManager = ui18nInstance.versionControlManager;
            if (versionControlManager) {
                if (language) {
                    if (versionControlManager.syncLanguagePack) {
                        await versionControlManager.syncLanguagePack(language);
                    }
                }
                else {
                    if (versionControlManager.syncAllLanguagePacks) {
                        await versionControlManager.syncAllLanguagePacks();
                    }
                }
                updateRealTimeSyncStatus();
                return true;
            }
            return false;
        }
        catch (err) {
            console.error('手动同步失败:', err);
            syncErrors.update(count => count + 1);
            return false;
        }
    };
    /**
     * 清理缓存
     */
    const clearCache = async (pattern) => {
        try {
            await ui18nInstance.clearCache(pattern);
            updateCacheStats();
        }
        catch (err) {
            console.error('清理缓存失败:', err);
            throw err;
        }
    };
    /**
     * 优化缓存
     */
    const optimizeCache = async () => {
        try {
            const optimizedCacheManager = ui18nInstance.optimizedCache;
            if (optimizedCacheManager && optimizedCacheManager.cleanup) {
                await optimizedCacheManager.cleanup();
            }
            updateCacheStats();
        }
        catch (err) {
            console.error('优化缓存失败:', err);
            throw err;
        }
    };
    /**
     * 预加载语言
     */
    const preloadLanguage = async (language) => {
        const commonPhrases = [
            'Hello', 'Thank you', 'Please', 'Yes', 'No',
            'Save', 'Cancel', 'Delete', 'Edit', 'View',
            'Login', 'Logout', 'Settings', 'Help', 'About'
        ];
        for (const phrase of commonPhrases) {
            try {
                await ui18nInstance.translate(phrase, language);
            }
            catch (err) {
                console.warn(`预加载短语失败: ${phrase}`, err);
            }
        }
        updateCacheStats();
    };
    /**
     * 获取缓存统计
     */
    const getCacheStats = () => {
        if (!ui18nInstance || !ui18nInstance.getCacheStats) {
            return null;
        }
        try {
            const stats = ui18nInstance.getCacheStats();
            return {
                totalItems: stats.totalItems || 0,
                memoryUsageMB: stats.memoryUsageMB || 0,
                memoryLimitMB: stats.memoryLimitMB || 50,
                memoryUtilization: stats.memoryUtilization || 0,
                hits: stats.hits || 0,
                misses: stats.misses || 0,
                hitRate: stats.hitRate || 0,
                type: stats.type || 'memory'
            };
        }
        catch (err) {
            console.warn('获取缓存统计失败:', err);
            return null;
        }
    };
    /**
     * 获取实时同步状态
     */
    const getRealTimeSyncStatus = () => {
        try {
            const versionControlManager = ui18nInstance.versionControlManager;
            if (versionControlManager && versionControlManager.getRealTimeSyncStatus) {
                const status = versionControlManager.getRealTimeSyncStatus();
                return {
                    enabled: status.enabled,
                    connected: status.connected,
                    method: status.method,
                    lastEvent: status.lastEvent,
                    syncErrors: get(syncErrors)
                };
            }
        }
        catch (err) {
            console.warn('获取实时同步状态失败:', err);
        }
        return {
            enabled: false,
            connected: false,
            method: 'polling',
            syncErrors: get(syncErrors)
        };
    };
    /**
     * 更新缓存统计
     */
    const updateCacheStats = () => {
        const stats = getCacheStats();
        cacheStats.set(stats);
    };
    /**
     * 更新实时同步状态
     */
    const updateRealTimeSyncStatus = () => {
        const status = getRealTimeSyncStatus();
        realTimeSyncStatus.set(status);
    };
    // 定期更新统计信息
    setInterval(() => {
        updateCacheStats();
        updateRealTimeSyncStatus();
    }, 5000);
    // 返回store和相关方法
    return {
        // 响应式store
        subscribe: store.subscribe,
        // 状态管理方法
        setLanguage,
        translate,
        translateBatch,
        translateBatchOptimized,
        getLanguageDisplayName,
        detectAndSetSystemLanguage,
        searchLanguages,
        // 高级功能方法
        connectRealTimeSync,
        disconnectRealTimeSync,
        manualSync,
        clearCache,
        optimizeCache,
        preloadLanguage,
        getCacheStats,
        getRealTimeSyncStatus,
        // 直接访问stores（用于高级用法）
        stores: {
            currentLanguage,
            loading,
            error,
            batchState,
            realTimeSyncStatus,
            cacheStats,
            syncErrors
        },
        // 直接访问UI18n实例
        ui18n: ui18nInstance
    };
}
/**
 * 全局UI18n Store实例（可选）
 */
let globalUI18nStore = null;
/**
 * 设置全局UI18n Store
 */
function setGlobalUI18nStore(config) {
    globalUI18nStore = createUI18nStore(config);
    return globalUI18nStore;
}
/**
 * 获取全局UI18n Store
 */
function getGlobalUI18nStore() {
    if (!globalUI18nStore) {
        throw new Error('全局UI18n Store未初始化。请先调用 setGlobalUI18nStore()');
    }
    return globalUI18nStore;
}

/**
 * Create useTranslation store
 * Provides translation functionality with reactive state
 */
function createUseTranslationStore(ui18n) {
    // Base state stores
    const translatedText = writable('');
    const isLoading = writable(false);
    const error = writable(null);
    // Derived store combining all state
    const state = derived([translatedText, isLoading, error], ([$translatedText, $isLoading, $error]) => ({
        translatedText: $translatedText,
        isLoading: $isLoading,
        error: $error
    }));
    /**
     * Translate text with reactive state management
     */
    const translate = async (text, options) => {
        if (!ui18n) {
            error.set('UI18n instance not available');
            return text;
        }
        try {
            isLoading.set(true);
            error.set(null);
            const result = await ui18n.translate(text, options?.targetLanguage || ui18n.getCurrentLanguage(), {
                context: options?.context,
                forceAI: options?.forceAI,
                skipCache: options?.skipCache
            });
            translatedText.set(result.text);
            return result.text;
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : 'Translation failed';
            error.set(errorMessage);
            console.error('Translation error:', err);
            translatedText.set(text); // fallback to original text
            return text;
        }
        finally {
            isLoading.set(false);
        }
    };
    /**
     * Translate multiple texts at once
     */
    const translateBatch = async (texts, options) => {
        if (!ui18n) {
            error.set('UI18n instance not available');
            return texts;
        }
        try {
            isLoading.set(true);
            error.set(null);
            const targetLanguage = options?.targetLanguage || ui18n.getCurrentLanguage();
            const results = await ui18n.translateBatch(texts, targetLanguage, {
                context: options?.context,
                maxConcurrency: 5
            });
            const translatedTexts = results.map(result => result.text);
            return translatedTexts;
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : 'Batch translation failed';
            error.set(errorMessage);
            console.error('Batch translation error:', err);
            return texts; // fallback to original texts
        }
        finally {
            isLoading.set(false);
        }
    };
    /**
     * Get current language
     */
    const getCurrentLanguage = () => {
        return ui18n?.getCurrentLanguage() || 'en';
    };
    /**
     * Get supported languages
     */
    const getSupportedLanguages = () => {
        return ui18n?.getSupportedLanguages() || [];
    };
    /**
     * Clear error state
     */
    const clearError = () => {
        error.set(null);
    };
    /**
     * Refresh translation with force cache skip
     */
    const refresh = async (text, options) => {
        return translate(text, { ...options, skipCache: true });
    };
    return {
        // Reactive state
        subscribe: state.subscribe,
        // Individual stores for advanced usage
        stores: {
            translatedText,
            isLoading,
            error
        },
        // Methods
        translate,
        translateBatch,
        getCurrentLanguage,
        getSupportedLanguages,
        clearError,
        refresh,
        // Alias for consistency with React/Vue
        t: translate
    };
}
/**
 * Global translation store instance
 */
let globalTranslationStore = null;
/**
 * Set global translation store
 */
function setGlobalTranslationStore(ui18n) {
    globalTranslationStore = createUseTranslationStore(ui18n);
    return globalTranslationStore;
}
/**
 * Get global translation store
 */
function getGlobalTranslationStore() {
    if (!globalTranslationStore) {
        throw new Error('Global translation store not initialized. Call setGlobalTranslationStore() first.');
    }
    return globalTranslationStore;
}
/**
 * Convenience function for global translation
 */
async function t$1(text, options) {
    const store = getGlobalTranslationStore();
    return store.translate(text, options);
}

/**
 * Create useLanguage store
 * Provides language management functionality with reactive state
 */
function createUseLanguageStore(ui18n) {
    // Base state stores
    const currentLanguage = writable(ui18n?.getCurrentLanguage() || 'en');
    const supportedLanguages = writable(ui18n?.getSupportedLanguages() || []);
    const isChanging = writable(false);
    const error = writable(null);
    // Derived store combining all state
    const state = derived([currentLanguage, supportedLanguages, isChanging, error], ([$currentLanguage, $supportedLanguages, $isChanging, $error]) => ({
        currentLanguage: $currentLanguage,
        supportedLanguages: $supportedLanguages,
        isChanging: $isChanging,
        error: $error
    }));
    /**
     * Switch to a new language
     */
    const switchLanguage = async (language) => {
        if (!ui18n || language === get(currentLanguage))
            return;
        try {
            isChanging.set(true);
            error.set(null);
            ui18n.setLanguage(language);
            currentLanguage.set(language);
            // Preload translations for the new language if storage adapter is available
            if (ui18n.loadPersistedTranslation) {
                await ui18n.loadPersistedTranslation(language);
            }
        }
        catch (err) {
            const errorMessage = err instanceof Error ? err.message : 'Language switch failed';
            error.set(errorMessage);
            console.error('Language switch error:', err);
            throw err;
        }
        finally {
            isChanging.set(false);
        }
    };
    /**
     * Get display name for a language
     */
    const getLanguageDisplayName = (language) => {
        return ui18n?.getLanguageDisplayName?.(language) || language;
    };
    /**
     * Detect language from text
     */
    const detectLanguage = (text) => {
        if (!text || typeof text !== 'string') {
            throw new Error('Input must be a string');
        }
        return ui18n?.detectLanguage?.(text) || 'en';
    };
    /**
     * Check if a language is supported
     */
    const isLanguageSupported = (language) => {
        const supported = get(supportedLanguages);
        return supported.includes(language);
    };
    /**
     * Get recommended languages based on current language
     */
    const getRecommendedLanguages = () => {
        const current = get(currentLanguage);
        const all = get(supportedLanguages);
        // Put current language first, then others
        return [current, ...all.filter((lang) => lang !== current)].slice(0, 5);
    };
    /**
     * Get available language packs
     */
    const getAvailableLanguages = async () => {
        if (!ui18n?.getAvailableLanguages) {
            return get(supportedLanguages);
        }
        try {
            return await ui18n.getAvailableLanguages();
        }
        catch (err) {
            console.warn('Failed to get available languages:', err);
            return get(supportedLanguages);
        }
    };
    /**
     * Refresh supported languages from UI18n instance
     */
    const refreshSupportedLanguages = () => {
        if (ui18n) {
            const languages = ui18n.getSupportedLanguages() || [];
            supportedLanguages.set(languages);
        }
    };
    /**
     * Sync current language with UI18n instance
     */
    const syncCurrentLanguage = () => {
        if (ui18n) {
            const language = ui18n.getCurrentLanguage();
            currentLanguage.set(language);
        }
    };
    /**
     * Clear error state
     */
    const clearError = () => {
        error.set(null);
    };
    /**
     * Initialize language state
     */
    const initialize = () => {
        refreshSupportedLanguages();
        syncCurrentLanguage();
    };
    // Auto-initialize
    initialize();
    return {
        // Reactive state
        subscribe: state.subscribe,
        // Individual stores for advanced usage
        stores: {
            currentLanguage,
            supportedLanguages,
            isChanging,
            error
        },
        // Methods
        switchLanguage,
        getLanguageDisplayName,
        detectLanguage,
        isLanguageSupported,
        getRecommendedLanguages,
        getAvailableLanguages,
        refreshSupportedLanguages,
        syncCurrentLanguage,
        clearError,
        initialize,
        // Utility getters (non-reactive for immediate access)
        getCurrentLanguage: () => get(currentLanguage),
        getSupportedLanguages: () => get(supportedLanguages),
        getIsChanging: () => get(isChanging),
        getError: () => get(error)
    };
}
/**
 * Global language store instance
 */
let globalLanguageStore = null;
/**
 * Set global language store
 */
function setGlobalLanguageStore(ui18n) {
    globalLanguageStore = createUseLanguageStore(ui18n);
    return globalLanguageStore;
}
/**
 * Get global language store
 */
function getGlobalLanguageStore() {
    if (!globalLanguageStore) {
        throw new Error('Global language store not initialized. Call setGlobalLanguageStore() first.');
    }
    return globalLanguageStore;
}

/**
 * Svelte浏览器专用入口点
 *
 * 🎯 基于 .ui18n 核心哲学的浏览器优化版本
 *
 * 特性：
 * - ✅ 浏览器适配器：localStorage模拟.ui18n目录
 * - ✅ Svelte优化：原生支持reactive stores和Svelte 4/5
 * - ✅ 轻量级：移除Node.js专用功能
 * - ✅ SvelteKit友好：SSR/SSG兼容性
 */
// 重新导出所有公共API
/**
 * 创建浏览器优化的Svelte UI18N Store
 *
 * 遵循.ui18n核心哲学：
 * 1. 尝试从/.ui18n/languages.json发现可用语言
 * 2. 使用localStorage模拟.ui18n目录进行持久化
 * 3. 集成Svelte的reactive stores系统
 */
function createBrowserUI18nStore(config = {}) {
    const { enableUI18nDiscovery = true, ui18nDiscoveryPath = "/.ui18n/languages.json", enablePersistence = true, debug = false, defaultLanguage = 'en', sveltekit = {}, ui18nConfig = {} } = config;
    // 创建UI18n实例（浏览器环境会自动使用浏览器适配器）
    const ui18n = createUI18n({
        defaultLanguage,
        ...ui18nConfig
    });
    // 创建响应式stores
    const currentLanguage = writable(defaultLanguage);
    const supportedLanguages = writable(['en', 'zh', 'es', 'fr', 'de', 'ja', 'ko']);
    const isLoading = writable(false);
    const isInitialized = writable(false);
    // 派生状态
    const isReady = derived([isInitialized, isLoading], ([$isInitialized, $isLoading]) => $isInitialized && !$isLoading);
    // 初始化逻辑
    let initPromise = null;
    const initialize = async () => {
        if (initPromise)
            return initPromise;
        initPromise = (async () => {
            try {
                isLoading.set(true);
                // 设置初始语言
                const initialLang = ui18n.getCurrentLanguage();
                currentLanguage.set(initialLang);
                // 自动发现和恢复
                await autoSetup();
                // 标记为已初始化
                isInitialized.set(true);
                if (debug) {
                    console.log('[UI18N Svelte Browser] Store已初始化，遵循.ui18n核心哲学 ✅', {
                        ui18nDiscovery: enableUI18nDiscovery ? `启用 (${ui18nDiscoveryPath})` : '禁用',
                        persistence: enablePersistence ? 'localStorage模拟.ui18n目录' : '禁用',
                        sveltekit: sveltekit.enableSSR ? 'SSR模式' : '客户端模式',
                        version: 'browser',
                        compliance: '.ui18n核心哲学 ✅'
                    });
                }
            }
            catch (error) {
                console.error('[UI18N Svelte Browser] 初始化失败:', error);
            }
            finally {
                isLoading.set(false);
            }
        })();
        return initPromise;
    };
    // 自动发现和恢复功能
    const autoSetup = async () => {
        // 1. 尝试.ui18n发现
        if (enableUI18nDiscovery && typeof fetch !== 'undefined') {
            try {
                const response = await fetch(ui18nDiscoveryPath);
                if (response.ok) {
                    const discoveredConfig = await response.json();
                    if (discoveredConfig.languages && Array.isArray(discoveredConfig.languages)) {
                        supportedLanguages.set(discoveredConfig.languages);
                        if (debug) {
                            console.log('[UI18N Svelte Browser] 发现.ui18n配置:', discoveredConfig);
                        }
                    }
                }
            }
            catch (error) {
                if (debug) {
                    console.warn('[UI18N Svelte Browser] .ui18n发现失败:', error);
                }
            }
        }
        // 2. 恢复之前保存的语言选择
        if (enablePersistence && typeof localStorage !== 'undefined') {
            try {
                const saved = localStorage.getItem('ui18n_svelte_selected_language');
                if (saved && get(supportedLanguages).includes(saved)) {
                    await setLanguage(saved);
                    if (debug) {
                        console.log(`[UI18N Svelte Browser] 从localStorage恢复语言: ${saved}`);
                    }
                }
            }
            catch (error) {
                if (debug) {
                    console.warn('[UI18N Svelte Browser] 恢复语言选择失败:', error);
                }
            }
        }
    };
    // 设置语言
    const setLanguage = async (language) => {
        try {
            await ui18n.setLanguage(language);
            currentLanguage.set(language);
            // 持久化到localStorage（模拟.ui18n目录）
            if (enablePersistence && typeof localStorage !== 'undefined') {
                localStorage.setItem('ui18n_svelte_selected_language', language);
                if (debug) {
                    console.log(`[UI18N Svelte Browser] 语言已保存到 localStorage: ${language}`);
                }
            }
        }
        catch (error) {
            console.error('[UI18N Svelte Browser] 设置语言失败:', error);
        }
    };
    // 翻译函数
    const translate = async (text, options) => {
        if (!ui18n) {
            return text;
        }
        return ui18n.t(text, options);
    };
    // 自动初始化（如果在浏览器环境）
    if (typeof window !== 'undefined') {
        initialize();
    }
    return {
        currentLanguage,
        supportedLanguages,
        isReady,
        isLoading,
        setLanguage,
        translate,
        t: translate
    };
}
/**
 * 全局浏览器UI18N store实例
 */
let globalBrowserStore = null;
/**
 * 设置全局浏览器UI18N store
 */
function setGlobalBrowserUI18nStore(store) {
    globalBrowserStore = store;
}
/**
 * 获取全局浏览器UI18N store
 */
function getGlobalBrowserUI18nStore() {
    if (!globalBrowserStore) {
        globalBrowserStore = createBrowserUI18nStore();
    }
    return globalBrowserStore;
}
/**
 * 便捷的翻译函数（使用全局store）
 */
async function t(text, options) {
    const store = getGlobalBrowserUI18nStore();
    return store.translate(text, options);
}
// 框架逻辑验证函数
function validateSvelteBrowserFrameworkCompliance() {
    const hasLocalStorage = typeof localStorage !== 'undefined';
    const hasSvelte = typeof writable !== 'undefined';
    const isSSR = typeof window === 'undefined';
    return {
        ui18nDirectory: true, // localStorage模拟.ui18n目录
        svelteCompatibility: hasSvelte,
        browserSafe: true, // 纯浏览器环境
        zeroConfig: true, // 提供默认配置
        persistence: hasLocalStorage,
        autoDiscovery: true, // 自动发现/.ui18n/languages.json
        reactiveStores: hasSvelte,
        ssrCompatible: true, // 支持SSR
        recommendations: [
            '✅ 使用/.ui18n/languages.json来定义可用语言',
            '✅ 选择的语言会自动保存到localStorage',
            hasLocalStorage ? '✅ 浏览器存储可用，支持语言偏好持久化' : '⚠️ 浏览器存储不可用，语言选择不会持久化',
            hasSvelte ? '✅ Svelte环境检测成功' : '⚠️ Svelte环境未检测到',
            isSSR ? '⚠️ SSR环境检测，部分功能受限' : '✅ 客户端环境检测成功',
            '💡 SvelteKit项目建议在onMount中初始化store'
        ]
    };
}
// 浏览器版本标识
const __BROWSER_VERSION__ = true;

/**
 * Standalone Svelte版本 - 完全自包含CDN友好版本
 *
 * 🎯 基于 .ui18n 核心哲学的零配置Svelte集成
 *
 * 特性：
 * - ✅ 零配置：自动检测和发现 .ui18n/languages.json
 * - ✅ 浏览器友好：localStorage 模拟 .ui18n 目录持久化
 * - ✅ Svelte优化：原生支持reactive stores和组件
 * - ✅ 一行可用：import即用，零配置开始
 * - ✅ CDN友好：支持unpkg、jsDelivr等CDN直接引用
 *
 * 使用场景：
 * - Svelte快速原型开发
 * - 零构建环境
 * - CDN直接使用
 * - 演示和测试
 */
// 重新导出所有浏览器优化的功能
/**
 * Standalone Svelte UI18N Store - 完全自包含版本
 *
 * 自动遵循 .ui18n 核心哲学：
 * 1. 尝试从 /.ui18n/languages.json 发现可用语言
 * 2. 使用 localStorage 模拟 .ui18n 目录进行持久化
 * 3. 提供默认的Svelte reactive stores，零配置可用
 */
function createStandaloneUI18nStore(config = {}) {
    const { enableUI18nDiscovery = true, ui18nDiscoveryPath = "/.ui18n/languages.json", enablePersistence = true, debug = false, defaultLanguage = "en", supportedLanguages: initialLanguages = ["en", "zh", "es", "fr", "de", "ja", "ko"] } = config;
    // 创建响应式stores
    const currentLanguage = writable(defaultLanguage);
    const supportedLanguages = writable(initialLanguages);
    const isLoading = writable(false);
    const isInitialized = writable(false);
    const translationCache = writable(new Map());
    // 派生状态
    const isReady = derived([isInitialized, isLoading], ([$isInitialized, $isLoading]) => $isInitialized && !$isLoading);
    // 初始化逻辑
    let initPromise = null;
    const initialize = async () => {
        if (initPromise)
            return initPromise;
        initPromise = (async () => {
            try {
                isLoading.set(true);
                // 自动发现和恢复
                await autoSetup();
                // 标记为已初始化
                isInitialized.set(true);
                if (debug) {
                    console.log('[UI18N Svelte Standalone] Store已初始化，遵循.ui18n核心哲学 ✅', {
                        ui18nDiscovery: enableUI18nDiscovery ? `启用 (${ui18nDiscoveryPath})` : '禁用',
                        persistence: enablePersistence ? 'localStorage模拟.ui18n目录' : '禁用',
                        version: 'standalone',
                        compliance: '.ui18n核心哲学 ✅'
                    });
                }
            }
            catch (error) {
                console.error('[UI18N Svelte Standalone] 初始化失败:', error);
            }
            finally {
                isLoading.set(false);
            }
        })();
        return initPromise;
    };
    // 自动发现和恢复功能
    const autoSetup = async () => {
        // 1. 尝试.ui18n发现
        if (enableUI18nDiscovery && typeof fetch !== 'undefined') {
            try {
                const response = await fetch(ui18nDiscoveryPath);
                if (response.ok) {
                    const discoveredConfig = await response.json();
                    if (discoveredConfig.languages && Array.isArray(discoveredConfig.languages)) {
                        supportedLanguages.set(discoveredConfig.languages);
                        if (debug) {
                            console.log('[UI18N Svelte Standalone] 发现.ui18n配置:', discoveredConfig);
                        }
                    }
                }
            }
            catch (error) {
                if (debug) {
                    console.warn('[UI18N Svelte Standalone] .ui18n发现失败，使用默认配置:', error);
                }
            }
        }
        // 2. 恢复之前保存的语言选择
        if (enablePersistence && typeof localStorage !== 'undefined') {
            try {
                const saved = localStorage.getItem('ui18n_svelte_standalone_language');
                if (saved && get(supportedLanguages).includes(saved)) {
                    await setLanguage(saved);
                    if (debug) {
                        console.log(`[UI18N Svelte Standalone] 从localStorage恢复语言: ${saved}`);
                    }
                }
            }
            catch (error) {
                if (debug) {
                    console.warn('[UI18N Svelte Standalone] 恢复语言选择失败:', error);
                }
            }
        }
    };
    // 设置语言
    const setLanguage = async (language) => {
        currentLanguage.set(language);
        // 持久化到localStorage（模拟.ui18n目录）
        if (enablePersistence && typeof localStorage !== 'undefined') {
            try {
                localStorage.setItem('ui18n_svelte_standalone_language', language);
                if (debug) {
                    console.log(`[UI18N Svelte Standalone] 语言已保存到 localStorage: ${language}`);
                }
            }
            catch (error) {
                if (debug) {
                    console.warn('[UI18N Svelte Standalone] 保存语言选择失败:', error);
                }
            }
        }
    };
    // 简化的翻译函数（基于缓存和本地规则）
    const translate = async (text, options) => {
        const targetLanguage = options?.language || get(currentLanguage);
        const cacheKey = `${text}_${targetLanguage}_${options?.context || ''}`;
        // 检查缓存
        const cache = get(translationCache);
        if (cache.has(cacheKey)) {
            return cache.get(cacheKey);
        }
        // 简化的翻译逻辑（实际项目中会调用AI服务）
        let translated = text;
        // 基本语言标记处理
        if (targetLanguage !== 'en' && text.includes('[')) {
            // 示例：处理 [Hello] 这样的标记
            translated = text.replace(/\[([^\]]+)\]/g, (match, content) => {
                // 这里可以集成实际的翻译服务
                return content; // 简化版本直接返回原内容
            });
        }
        // 缓存结果
        const newCache = new Map(cache);
        newCache.set(cacheKey, translated);
        translationCache.set(newCache);
        return translated;
    };
    // 自动初始化（如果在浏览器环境）
    if (typeof window !== 'undefined') {
        initialize();
    }
    return {
        currentLanguage,
        supportedLanguages,
        isReady,
        isLoading,
        cache: derived(translationCache, $cache => $cache),
        setLanguage,
        translate,
        t: translate
    };
}
/**
 * 全局standalone store实例
 */
let globalStandaloneStore = null;
/**
 * 设置全局standalone UI18N store
 */
function setGlobalStandaloneUI18nStore(store) {
    globalStandaloneStore = store;
}
/**
 * 获取全局standalone UI18N store
 */
function getGlobalStandaloneUI18nStore() {
    if (!globalStandaloneStore) {
        globalStandaloneStore = createStandaloneUI18nStore();
    }
    return globalStandaloneStore;
}
/**
 * 便捷的翻译函数（使用全局standalone store）
 */
async function standaloneT(text, options) {
    const store = getGlobalStandaloneUI18nStore();
    return store.translate(text, options);
}
// 默认导出为便于CDN使用
var standalone = {
    createStandaloneUI18nStore,
    setGlobalStandaloneUI18nStore,
    getGlobalStandaloneUI18nStore,
    standaloneT
};
// 添加开发模式警告
if (typeof console !== 'undefined') {
    try {
        if (typeof process !== 'undefined' && process.env && process.env.NODE_ENV !== 'production') {
            console.warn('[@ui18n/svelte/standalone] ' +
                'You are using the standalone version. ' +
                'For production with bundlers, use the regular version to optimize bundle size.');
        }
    }
    catch (e) {
        // process可能在某些环境中不可用，忽略错误
    }
}
// 框架逻辑验证函数
function validateStandaloneSvelteFrameworkCompliance() {
    const hasLocalStorage = typeof localStorage !== 'undefined';
    const hasSvelte = typeof writable !== 'undefined';
    const isSSR = typeof window === 'undefined';
    return {
        ui18nDirectory: true, // standalone版本默认支持.ui18n发现
        svelteCompatibility: hasSvelte,
        browserSafe: true,
        zeroConfig: true, // 提供默认配置
        persistence: hasLocalStorage, // localStorage模拟.ui18n目录
        autoDiscovery: true, // 自动发现/.ui18n/languages.json
        reactiveStores: hasSvelte,
        ssrCompatible: true,
        recommendations: [
            '✅ 使用 /.ui18n/languages.json 来定义可用语言',
            '✅ 选择的语言会自动保存到 localStorage',
            hasLocalStorage ? '✅ 浏览器存储可用，支持语言偏好持久化' : '⚠️ 浏览器存储不可用，语言选择不会持久化',
            hasSvelte ? '✅ Svelte环境检测成功' : '⚠️ Svelte环境未检测到',
            isSSR ? '⚠️ SSR环境检测，部分功能受限' : '✅ 客户端环境检测成功',
            '💡 生产环境建议使用常规版本配合构建工具'
        ]
    };
}
// 为standalone版本添加特殊标识和元数据
const __STANDALONE_VERSION__ = true;
const __FRAMEWORK_COMPLIANCE__ = {
    ui18nCorePhilosophy: true,
    svelteCompatible: true,
    reactiveStores: true,
    ssrCompatible: true,
    browserSafe: true,
    zeroConfig: true,
    selfContained: true
};

export { __BROWSER_VERSION__, __FRAMEWORK_COMPLIANCE__, __STANDALONE_VERSION__, createBrowserUI18nStore, createStandaloneUI18nStore, createUI18nStore, createUseLanguageStore, createUseTranslationStore, standalone as default, getGlobalBrowserUI18nStore, getGlobalLanguageStore, getGlobalStandaloneUI18nStore, getGlobalTranslationStore, getGlobalUI18nStore, setGlobalBrowserUI18nStore, setGlobalLanguageStore, setGlobalStandaloneUI18nStore, setGlobalTranslationStore, setGlobalUI18nStore, standaloneT, t, t$1 as useTranslationT, validateStandaloneSvelteFrameworkCompliance, validateSvelteBrowserFrameworkCompliance };