// visionA-local 控制台 i18n
// namespace: desktop-control
// 對齊 Design Spec v2.1 control-panel.md §9 + startup-progress.md §7

const dict = {
    'zh-TW': {
        'control.title': 'visionA-local · 伺服器控制台',
        'control.status.idle': '閒置',
        'control.status.starting': '啟動中...',
        'control.status.running': '執行中',
        'control.status.runningBrowserOpened': '執行中 · 已開啟瀏覽器',
        'control.status.stopping': '停止中...',
        'control.status.stopped': '已停止',
        'control.status.error': '錯誤：{reason}',
        'control.meta.port': '連接埠',
        'control.meta.uptime': '執行時間',
        'control.meta.pid': '程序 ID',
        'control.meta.version': '版本',
        'control.action.openBrowser': '在瀏覽器開啟',
        'control.action.start': '啟動',
        'control.action.stop': '停止',
        'control.action.restart': '重新啟動',
        'control.action.manage': '管理',
        'control.action.stopServer': '停止伺服器',
        'control.action.restartServer': '重新啟動伺服器',
        'control.log.followTail': '自動跟隨最新',
        'control.log.showTimestamps': '顯示時間戳',
        'control.log.filterPlaceholder': '過濾 log...',
        'control.log.jumpToLatest': '跳到最新',
        'control.log.clear': '清空',
        'control.log.clearToast': '已清空 log',
        'control.log.copy': '複製',
        'control.log.copied': '已複製到剪貼簿',
        'control.log.copyPrivacyHint': 'Log 可能包含檔名與裝置資訊，請注意分享對象',
        'control.log.export': '匯出 log',
        'control.log.exported': '已匯出到 {path}',
        'control.log.openFolder': '開啟 log 資料夾',
        'control.log.lines': '行數：{current} / {max}',
        'control.footer.closeWarning': '⚠ 關閉此視窗會停止伺服器',
        'control.error.title': '伺服器無法啟動',
        'control.error.description': '{reason}',
        'control.error.restartButton': '重新啟動伺服器',
        'control.error.viewLogDetails': '檢視 log 詳情',
        'control.error.reportButton': '回報問題...',
        'control.shutdown.stopping': '正在停止伺服器…',
        // startup progress
        'startup.panel.title': '正在啟動 visionA-local',
        'startup.panel.ariaLabel': '啟動進度：階段 {current} / {max}',
        'startup.progressLabel': '進度 {current} / {max}',
        'startup.progressWithElapsed': '進度 {current} / {max} · 已等待 {elapsed} 秒',
        'startup.stage.1.label': '初始化控制台',
        'startup.stage.1.description': '準備 visionA-local 桌面環境',
        'startup.stage.2.label': '檢查 Python 執行環境',
        'startup.stage.2.description': '首次啟動可能需要較長時間',
        'startup.stage.3.label': '啟動本機伺服器',
        'startup.stage.3.description': '在 127.0.0.1:3721 啟動服務',
        'startup.stage.4.label': '偵測 Kneron 裝置',
        'startup.stage.4.description': '掃描已連接的硬體',
        'startup.stage.5.label': '開啟瀏覽器',
        'startup.stage.5.description': '在預設瀏覽器開啟 Web UI',
        'startup.stage.5.skipped.label': '跳過（依偏好設定）',
        'startup.stage.6.label': '等待 Web UI 連線',
        'startup.stage.6.description': '正在與瀏覽器建立即時連線',
        'startup.stage.6.manualHint': '請點擊控制台的「在瀏覽器開啟」按鈕',
        // 各 stage 細步提示（由 Go 的 startup:stage-detail event 觸發）
        // Stage 1 - 初始化控制台
        'startup.stage.1.detail.migrate': '檢查並遷移舊資料目錄...',
        'startup.stage.1.detail.lock': '建立 single-instance lock...',
        'startup.stage.1.detail.ipc': '啟動 Wails IPC server...',
        'startup.stage.1.detail.seed': '正在準備內建模型資料（首次啟動會花幾秒鐘）...',
        'startup.stage.1.detail.seedSlow': '正在準備內建模型資料（Windows Defender 掃描檔案中，已 {elapsed} 秒）',
        // Stage 2 - 檢查 Python 執行環境
        'startup.stage.2.detail.detect': '偵測系統 Python 執行環境...',
        'startup.stage.2.detail.bootstrap': '正在解壓內建 Python runtime（首次啟動需 1-2 分鐘）...',
        'startup.stage.2.detail.venv': '正在建立 Python 虛擬環境...',
        'startup.stage.2.detail.pip': '正在安裝 Python 套件 numpy / opencv / KneronPLUS（首次啟動需 1-3 分鐘）...',
        'startup.stage.2.detail.driver': '正在安裝 Kneron USB 驅動程式（請點選 UAC 允許）...',
        // Stage 3 - 啟動本機伺服器
        'startup.stage.3.detail.spawn': '正在啟動伺服器子程序...',
        'startup.stage.3.detail.waitHealth': '正在等待伺服器健康檢查通過（已等 {elapsed} 秒）',
        'startup.stage.3.detail.waitHealthSlow': '首次啟動較久屬正常，Windows Defender 掃描可能需 1-2 分鐘（已等 {elapsed} 秒）',
        // Stage 4 - 偵測 Kneron 裝置
        'startup.stage.4.detail.probe': '正在掃描 USB 裝置...',
        // Stage 5 - 開啟瀏覽器
        'startup.stage.5.detail.open': '正在開啟系統預設瀏覽器...',
        // Stage 6 - 等待 Web UI 連線
        'startup.stage.6.detail.wait': '正在等待瀏覽器建立 WebSocket 連線...',
        // 啟動完成後 collapsed 面板的標題與提示
        'startup.collapsed.title': '啟動完成',
        'startup.collapsed.hint': '· 點此展開檢視',
        'startup.collapsed.hintRestart': '· 點此或按重啟可重新展開',
        'startup.status.pending': '等待中',
        'startup.status.running': '進行中',
        'startup.status.done': '完成',
        'startup.status.failed': '失敗',
        'startup.status.skipped': '跳過（依偏好設定）',
        'startup.timeout.message': '這個步驟花的時間比預期久，正在重試...',
        'startup.error.title': '啟動失敗',
        'startup.error.description.timeout': '啟動時間超過 180 秒，可能是系統環境異常或網路中斷。',
        'startup.error.description.stageFailed': '階段「{stageLabel}」執行失敗。',
        'startup.error.failedStage': '失敗階段：{n} · {label}',
        'startup.error.retry': '重試',
        'startup.error.viewLog': '檢視 log',
        'startup.error.report': '回報問題',
        // settings
        'settings.title': '設定',
        'settings.autoOpenBrowser.label': '啟動時自動開啟瀏覽器',
        'settings.autoOpenBrowser.hintLinux': 'Linux 桌面環境差異大，預設關閉',
        'settings.language.label': '語言',
        'settings.about.title': '關於',
    },
    'en': {
        'control.title': 'visionA-local · Server Control',
        'control.status.idle': 'Idle',
        'control.status.starting': 'Starting...',
        'control.status.running': 'Running',
        'control.status.runningBrowserOpened': 'Running · Browser opened',
        'control.status.stopping': 'Stopping...',
        'control.status.stopped': 'Stopped',
        'control.status.error': 'Error: {reason}',
        'control.meta.port': 'Port',
        'control.meta.uptime': 'Uptime',
        'control.meta.pid': 'PID',
        'control.meta.version': 'Version',
        'control.action.openBrowser': 'Open in Browser',
        'control.action.start': 'Start',
        'control.action.stop': 'Stop',
        'control.action.restart': 'Restart',
        'control.action.manage': 'Manage',
        'control.action.stopServer': 'Stop server',
        'control.action.restartServer': 'Restart server',
        'control.log.followTail': 'Follow tail',
        'control.log.showTimestamps': 'Show timestamps',
        'control.log.filterPlaceholder': 'Filter...',
        'control.log.jumpToLatest': 'Jump to latest',
        'control.log.clear': 'Clear',
        'control.log.clearToast': 'Log cleared',
        'control.log.copy': 'Copy',
        'control.log.copied': 'Copied to clipboard',
        'control.log.copyPrivacyHint': 'Log may contain filenames and device info. Share with care.',
        'control.log.export': 'Export log',
        'control.log.exported': 'Exported to {path}',
        'control.log.openFolder': 'Open log folder',
        'control.log.lines': 'Lines: {current} / {max}',
        'control.footer.closeWarning': '⚠ Closing this window will stop the server',
        'control.error.title': 'Server failed to start',
        'control.error.description': '{reason}',
        'control.error.restartButton': 'Restart Server',
        'control.error.viewLogDetails': 'View log details',
        'control.error.reportButton': 'Report...',
        'control.shutdown.stopping': 'Stopping server…',
        // startup progress
        'startup.panel.title': 'Starting visionA-local',
        'startup.panel.ariaLabel': 'Startup progress: stage {current} / {max}',
        'startup.progressLabel': 'Progress {current} / {max}',
        'startup.progressWithElapsed': 'Progress {current} / {max} · {elapsed}s elapsed',
        'startup.stage.1.label': 'Initializing control panel',
        'startup.stage.1.description': 'Preparing visionA-local desktop',
        'startup.stage.2.label': 'Checking Python runtime',
        'startup.stage.2.description': 'First launch may take longer',
        'startup.stage.3.label': 'Starting local server',
        'startup.stage.3.description': 'Starting service on 127.0.0.1:3721',
        'startup.stage.4.label': 'Detecting Kneron devices',
        'startup.stage.4.description': 'Scanning connected hardware',
        'startup.stage.5.label': 'Opening browser',
        'startup.stage.5.description': 'Opening the Web UI in your default browser',
        'startup.stage.5.skipped.label': 'Skipped (per preference)',
        'startup.stage.6.label': 'Waiting for Web UI to connect',
        'startup.stage.6.description': 'Establishing realtime connection with the browser',
        'startup.stage.6.manualHint': 'Please click "Open in Browser" in the Control Panel',
        // All stage sub-step hints (triggered by Go startup:stage-detail event)
        // Stage 1
        'startup.stage.1.detail.migrate': 'Checking and migrating legacy data directories...',
        'startup.stage.1.detail.lock': 'Acquiring single-instance lock...',
        'startup.stage.1.detail.ipc': 'Starting Wails IPC server...',
        'startup.stage.1.detail.seed': 'Preparing built-in model data (takes a few seconds on first launch)...',
        'startup.stage.1.detail.seedSlow': 'Preparing built-in model data (Defender scanning files, {elapsed}s elapsed)',
        // Stage 2
        'startup.stage.2.detail.detect': 'Detecting system Python runtime...',
        'startup.stage.2.detail.bootstrap': 'Extracting bundled Python runtime (takes 1-2 min on first launch)...',
        'startup.stage.2.detail.venv': 'Creating Python virtual environment...',
        'startup.stage.2.detail.pip': 'Installing Python packages numpy / opencv / KneronPLUS (takes 1-3 min on first launch)...',
        'startup.stage.2.detail.driver': 'Installing Kneron USB driver (please allow UAC)...',
        // Stage 3
        'startup.stage.3.detail.spawn': 'Launching server subprocess...',
        'startup.stage.3.detail.waitHealth': 'Waiting for server health check ({elapsed}s elapsed)',
        'startup.stage.3.detail.waitHealthSlow': 'First launch is slow — Windows Defender scan may take 1-2 minutes ({elapsed}s elapsed)',
        // Stage 4
        'startup.stage.4.detail.probe': 'Scanning USB devices...',
        // Stage 5
        'startup.stage.5.detail.open': 'Opening system default browser...',
        // Stage 6
        'startup.stage.6.detail.wait': 'Waiting for browser to establish WebSocket connection...',
        // Collapsed panel after startup ready
        'startup.collapsed.title': 'Startup complete',
        'startup.collapsed.hint': '· click to expand',
        'startup.collapsed.hintRestart': '· click or restart to expand',
        'startup.status.pending': 'Waiting',
        'startup.status.running': 'Running',
        'startup.status.done': 'Done',
        'startup.status.failed': 'Failed',
        'startup.status.skipped': 'Skipped (per preference)',
        'startup.timeout.message': 'This step is taking longer than expected, retrying...',
        'startup.error.title': 'Startup failed',
        'startup.error.description.timeout': 'Startup exceeded 180 seconds. Your environment may have issues or the network is interrupted.',
        'startup.error.description.stageFailed': 'Stage "{stageLabel}" failed.',
        'startup.error.failedStage': 'Failed stage: {n} · {label}',
        'startup.error.retry': 'Retry',
        'startup.error.viewLog': 'View Log',
        'startup.error.report': 'Report Issue',
        // settings
        'settings.title': 'Settings',
        'settings.autoOpenBrowser.label': 'Auto-open browser on startup',
        'settings.autoOpenBrowser.hintLinux': 'Linux desktop environments vary, disabled by default',
        'settings.language.label': 'Language',
        'settings.about.title': 'About',
    },
};

let currentLocale = 'zh-TW';

// 根據 navigator.language 或儲存值決定 locale
export function detectLocale(preferredLocale) {
    // 1. 使用者明確指定（preferences）
    if (preferredLocale && dict[preferredLocale]) return preferredLocale;
    // 2. localStorage
    const stored = localStorage.getItem('vl-locale');
    if (stored && dict[stored]) return stored;
    // 3. navigator.language
    const lang = (navigator.language || navigator.userLanguage || '').toLowerCase();
    if (lang.startsWith('zh')) return 'zh-TW';
    if (lang.startsWith('en')) return 'en';
    // 4. fallback
    return 'zh-TW';
}

export function setLocale(locale) {
    if (dict[locale]) {
        currentLocale = locale;
        localStorage.setItem('vl-locale', locale);
    }
}

export function getLocale() {
    return currentLocale;
}

// t('key', {param: value}) → 翻譯字串並替換 {param}
export function t(key, params) {
    let s = (dict[currentLocale] && dict[currentLocale][key]);
    if (s === undefined) {
        // fallback en
        s = (dict.en && dict.en[key]) || key;
    }
    if (params) {
        for (const k in params) {
            s = s.replace(new RegExp('\\{' + k + '\\}', 'g'), params[k]);
        }
    }
    return s;
}

// 對 DOM 中所有 [data-i18n] / [data-i18n-placeholder] 執行翻譯
export function applyI18n(root) {
    const scope = root || document;
    scope.querySelectorAll('[data-i18n]').forEach(el => {
        const key = el.getAttribute('data-i18n');
        el.textContent = t(key);
    });
    scope.querySelectorAll('[data-i18n-placeholder]').forEach(el => {
        const key = el.getAttribute('data-i18n-placeholder');
        el.setAttribute('placeholder', t(key));
    });
}

export const LOCALES = Object.keys(dict);