<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="{{ url_for('static', filename='font-awesome.css') }}">
    <title>STT 语音识别</title>
    <style>
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: #f5f5f5;
            color: #333;
            height: 100vh;
            overflow: hidden;
            display: flex;
        }
        /* 左侧面板 */
        .left-panel {
            max-width: 420px; width: 100%;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            border-right: 1px solid #e8e8e8;
            background: #fff;
            height: 100vh;
            overflow-y: auto;
        }
        .left-panel::-webkit-scrollbar { width: 4px; }
        .left-panel::-webkit-scrollbar-thumb { background: #ddd; border-radius: 2px; }
        .input-section { padding: 20px 24px 28px; }

        .header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 2px;
        }
        .header h1 {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a1a;
            letter-spacing: -0.01em;
        }
        .subtitle { color: #aaa; font-size: 12px; margin-bottom: 16px; }
        .settings-icon {
            width: 32px; height: 32px; border: none; background: transparent;
            color: #999; font-size: 15px; cursor: pointer; border-radius: 8px;
            display: flex; align-items: center; justify-content: center; transition: all 0.15s;
        }
        .settings-icon:hover { background: #f5f5f5; color: #333; }

        .section-card {
            background: #fafafa;
            border: 1px solid #f0f0f0;
            border-radius: 10px;
            padding: 14px 16px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 11px;
            font-weight: 600;
            color: #999;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .section-title i { font-size: 11px; }

        .input-group { margin-bottom: 10px; position: relative; }
        .input-group:last-child { margin-bottom: 0; }
        .input-group label {
            display: block; font-size: 12px; font-weight: 500;
            margin-bottom: 4px; color: #555;
        }
        .input-group select {
            width: 100%; padding: 7px 10px;
            border: 1px solid #e0e0e0; border-radius: 6px;
            background: #fff; color: #333; font-size: 13px;
            outline: none; transition: all 0.15s ease;
        }
        .input-group select:focus {
            border-color: #0078d4;
            box-shadow: 0 0 0 2px rgba(0,120,212,0.06);
        }

        /* 文件上传 */
        .file-drop {
            border: 2px dashed #e0e0e0;
            border-radius: 8px;
            padding: 24px 16px;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s;
            background: #fff;
        }
        .file-drop:hover, .file-drop.dragover {
            border-color: #0078d4;
            background: #f0f7ff;
        }
        .file-drop i { font-size: 28px; color: #ccc; margin-bottom: 8px; }
        .file-drop p { font-size: 13px; color: #999; }
        .file-drop .filename {
            font-size: 13px; color: #0078d4; font-weight: 600;
            margin-top: 6px; word-break: break-all;
        }
        .file-drop input { display: none; }

        /* 音频播放器 */
        .audio-player {
            display: none; margin-top: 10px;
        }
        .audio-player audio {
            width: 100%; height: 36px; border-radius: 8px;
        }

        /* 格式选择 */
        .format-group {
            display: flex; gap: 6px;
        }
        .format-btn {
            flex: 1; padding: 6px 0;
            border: 1px solid #e0e0e0; border-radius: 6px;
            background: #fff; color: #666;
            font-size: 12px; font-weight: 500;
            cursor: pointer; text-align: center;
            transition: all 0.15s ease;
        }
        .format-btn:hover { border-color: #0078d4; color: #0078d4; }
        .format-btn.active {
            background: #e8f0fe; border-color: #0078d4; color: #0078d4;
        }

        /* 开始按钮 */
        .run-btn {
            width: 100%; padding: 10px 18px;
            background: linear-gradient(135deg, #0078d4, #005fa3);
            color: #fff; border: none; border-radius: 8px;
            font-size: 14px; font-weight: 600;
            cursor: pointer; transition: all 0.15s ease;
            display: flex; align-items: center; justify-content: center; gap: 8px;
            margin-top: 14px;
            box-shadow: 0 2px 8px rgba(0,120,212,0.2);
        }
        .run-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, #006cbd, #004e8a);
            box-shadow: 0 4px 12px rgba(0,120,212,0.3);
            transform: translateY(-1px);
        }
        .run-btn:active:not(:disabled) { transform: translateY(0); }
        .run-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

        @keyframes spin { to { transform: rotate(360deg); } }
        .spinner {
            display: inline-block; width: 16px; height: 16px;
            border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff;
            border-radius: 50%; animation: spin 0.8s linear infinite;
        }

        /* ===== 右侧面板 ===== */
        .right-panel {
            flex: 1;
            background: #fff;
            display: flex;
            flex-direction: column;
            height: 100vh;
        }
        .right-header {
            padding: 20px 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .right-header h2 {
            font-size: 15px; font-weight: 600; color: #333;
        }
        .result-badge {
            font-size: 12px; font-weight: 600; color: #0078d4;
            background: #e8f0fe; padding: 2px 10px; border-radius: 10px;
        }

        /* 进度 */
        .progress-wrap {
            padding: 16px 24px;
            display: none;
        }
        .progress-bar-bg {
            height: 6px; background: #f0f0f0;
            border-radius: 3px; overflow: hidden;
        }
        .progress-bar-fill {
            height: 100%; background: linear-gradient(90deg, #0078d4, #00a4ef);
            border-radius: 3px; transition: width 0.3s;
            width: 0%;
        }
        .progress-info {
            display: flex; justify-content: space-between;
            margin-top: 6px; font-size: 11px; color: #999;
        }

        /* 结果区域 */
        .result-area {
            flex: 1; overflow-y: auto; padding: 20px 24px;
        }
        .result-area::-webkit-scrollbar { width: 4px; }
        .result-area::-webkit-scrollbar-thumb { background: #ddd; border-radius: 2px; }

        .result-textarea {
            width: 100%; height: 100%; min-height: 300px;
            border: 1px solid #e0e0e0; border-radius: 8px;
            padding: 12px 14px; font-size: 14px; line-height: 1.8;
            color: #333; background: #fff; resize: vertical;
            font-family: inherit; outline: none;
            transition: border-color 0.15s;
        }
        .result-textarea:focus {
            border-color: #0078d4;
            box-shadow: 0 0 0 2px rgba(0,120,212,0.06);
        }

        .result-text {
            font-size: 14px; line-height: 1.8;
            color: #333; white-space: pre-wrap;
            word-break: break-word;
        }

        .result-srt {
            font-size: 13px; line-height: 1.6;
        }
        .srt-item {
            padding: 8px 12px; margin-bottom: 6px;
            background: #fafafa; border: 1px solid #f0f0f0;
            border-radius: 6px;
        }
        .srt-time {
            font-size: 11px; color: #0078d4;
            font-family: monospace; margin-bottom: 2px;
        }
        .srt-text { font-size: 14px; color: #333; }

        /* 占位 */
        .placeholder {
            flex: 1; display: flex; flex-direction: column;
            align-items: center; justify-content: center;
            color: #ccc; gap: 12px;
        }
        .placeholder i { font-size: 48px; }
        .placeholder p { font-size: 13px; }

        /* 操作栏 */
        .action-bar {
            padding: 12px 24px;
            border-top: 1px solid #f0f0f0;
            display: none;
            gap: 8px;
        }
        .btn {
            padding: 7px 14px; border: none; border-radius: 6px;
            font-size: 12px; font-weight: 600; cursor: pointer;
            transition: all 0.12s ease;
            display: inline-flex; align-items: center; gap: 5px;
        }
        .btn-primary { background: #0078d4; color: #fff; }
        .btn-primary:hover { background: #006cbd; }
        .btn-outline { background: #fff; color: #666; border: 1px solid #e0e0e0; }
        .btn-outline:hover { background: #f5f5f5; color: #333; }

        /* Toast */
        .toast {
            position: fixed; top: 20px; left: 50%;
            transform: translateX(-50%);
            background: #0a7a1a; color: #fff;
            padding: 10px 24px; border-radius: 8px;
            font-size: 13px; font-weight: 500;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            opacity: 0; transition: opacity 0.3s;
            z-index: 9999; pointer-events: none;
        }
        .toast.show { opacity: 1; }
        .toast.error { background: #c62828; }

        /* Settings modal */
        .modal-overlay {
            display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4);
            z-index: 100; align-items: center; justify-content: center;
        }
        .modal-overlay.show { display: flex; }
        .modal {
            background: #fff; border-radius: 12px; width: 460px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.2);
        }
        .modal-header {
            display: flex; justify-content: space-between; align-items: center;
            padding: 16px 20px; border-bottom: 1px solid #f0f0f0;
        }
        .modal-header h3 { font-size: 15px; font-weight: 700; }
        .modal-close {
            width: 28px; height: 28px; border: none; background: transparent;
            color: #999; font-size: 16px; cursor: pointer; border-radius: 6px;
            display: flex; align-items: center; justify-content: center;
        }
        .modal-close:hover { background: #f5f5f5; }
        .modal-body { padding: 16px 20px; }
        .modal-body .input-group { margin-bottom: 12px; }
        .modal-body .input-group label { font-size: 13px; }
        .modal-body .input-group input {
            width: 100%; padding: 7px 10px; border: 1px solid #e0e0e0; border-radius: 6px;
            font-size: 13px; outline: none;
        }
        .modal-body .input-group input:focus { border-color: #0078d4; }
        .modal-body .input-group .input-desc { font-size: 11px; color: #aaa; margin-top: 4px; }
        .modal-footer {
            padding: 12px 20px; border-top: 1px solid #f0f0f0;
            display: flex; justify-content: flex-end; gap: 8px;
        }
        @media (max-width: 768px) {
            body { flex-direction: column; height: auto; overflow: auto; }
            .left-panel { width: 100% !important; max-width: 100% !important; height: auto; border-right: none; border-bottom: 1px solid #e8e8e8; overflow-y: visible; }
            .right-panel { height: auto; min-height: 50vh; }
            .card-pair { flex-direction: column; }
            .modal { width: 92vw !important; max-height: 90vh; overflow-y: auto; left: 4vw !important; transform: none !important; }
            .input-section { padding: 14px 16px 20px; }
        }
    </style>
</head>
<body>
    <!-- Settings modal -->
    <div class="modal-overlay" id="settingsModal">
        <div class="modal">
            <div class="modal-header">
                <h3><i class="fas fa-wrench"></i> STT 设置</h3>
                <button class="modal-close" onclick="closeSettings()">&times;</button>
            </div>
            <div class="modal-body">
                <div class="input-group">
                    <label>识别模型目录</label>
                    <input type="text" id="sttModelDir" placeholder="E:\AI\models\stt_models">
                    <div class="input-desc">faster-whisper 模型所在目录，填写后将自动扫描可用模型</div>
                </div>
            </div>
            <div class="modal-footer">
                <button class="btn btn-outline" onclick="closeSettings()">取消</button>
                <button class="btn btn-primary" onclick="saveSettings()">保存设置</button>
            </div>
        </div>
    </div>

    <div class="toast" id="toast"></div>

    <!-- 左侧：输入 -->
    <div class="left-panel">
        <div class="input-section">
            <div class="header">
                <h1><i class="fas fa-microphone" style="color:#0078d4;font-size:16px;margin-right:6px;"></i>STT 语音识别</h1>
                <button class="settings-icon" onclick="openSettings()"><i class="fas fa-wrench"></i></button>
            </div>
            <p class="subtitle">使用 faster-whisper 将音频转为文字</p>

            <div class="section-card">
                <div class="section-title"><i class="fas fa-file"></i> 上传音频</div>
                <div class="file-drop" id="fileDrop" onclick="document.getElementById('audioFile').click()">
                    <i class="fas fa-microphone"></i>
                    <p id="dropText">点击或拖拽音频文件到此处</p>
                    <div class="filename" id="fileName" style="display:none;"></div>
                    <input type="file" id="audioFile" accept="audio/*,video/*">
                </div>
                <div class="audio-player" id="audioPlayer">
                    <audio id="audioPreview" controls preload="metadata"></audio>
                </div>
            </div>

            <div class="section-card">
                <div class="section-title"><i class="fas fa-brain"></i> 模型与语言</div>
                <div class="input-group">
                    <label>识别模型</label>
                    <select id="modelSelect">
                        <option value="" disabled selected>请先配置模型路径</option>
                    </select>
                </div>
                <div class="input-group">
                    <label>语言</label>
                    <select id="langSelect">
                        {% for code, name in languages.items() %}
                        <option value="{{ code }}">{{ name }}</option>
                        {% endfor %}
                    </select>
                </div>
                <div class="input-group">
                    <label>运行设备</label>
                    <select id="deviceSelect">
                        <option value="cpu">CPU</option>
                        <option value="cuda" disabled>CUDA (检测中...)</option>
                    </select>
                    <span id="cudaStatus" style="font-size:11px;color:#999;margin-top:3px;display:block;"></span>
                </div>
            </div>

            <div class="section-card">
                <div class="section-title"><i class="fas fa-list"></i> 输出格式</div>
                <div class="format-group">
                    <button class="format-btn active" data-fmt="text" onclick="setFormat(this)">纯文本</button>
                    <button class="format-btn" data-fmt="srt" onclick="setFormat(this)">SRT 字幕</button>
                    <button class="format-btn" data-fmt="json" onclick="setFormat(this)">JSON</button>
                </div>
            </div>

            <button class="run-btn" id="startBtn" onclick="startTranscribe()" disabled>
                <i class="fas fa-play"></i> 开始识别
            </button>
        </div>
    </div>

    <!-- 右侧：结果 -->
    <div class="right-panel">
        <div class="right-header">
            <h2><i class="fas fa-list" style="color:#0078d4;margin-right:6px;"></i>识别结果</h2>
            <span class="result-badge" id="resultBadge" style="display:none;"></span>
        </div>
        <div class="progress-wrap" id="progressWrap">
            <div class="progress-bar-bg">
                <div class="progress-bar-fill" id="progressFill"></div>
            </div>
            <div class="progress-info">
                <span id="progressStatus">等待中...</span>
                <span id="progressPercent">0%</span>
            </div>
        </div>
        <div id="resultArea" class="result-area">
            <div class="placeholder">
                <i class="fas fa-microphone"></i>
                <p>上传音频文件并点击"开始识别"</p>
            </div>
        </div>
        <div class="action-bar" id="actionBar">
            <button class="btn btn-primary" onclick="copyResult()"><i class="fas fa-copy"></i> 复制结果</button>
            <button class="btn btn-outline" onclick="downloadResult()"><i class="fas fa-file"></i> 下载结果</button>
        </div>
    </div>

<script>
    // === Settings ===
    function openSettings() {
        document.getElementById('settingsModal').classList.add('show');
        loadSettings();
    }
    function closeSettings() {
        document.getElementById('settingsModal').classList.remove('show');
    }
    function loadSettings() {
        fetch('/stt/config').then(function(r){ return r.json(); }).then(function(cfg){
            document.getElementById('sttModelDir').value = cfg.model_dir || '';
        });
    }
    function saveSettings() {
        var cfg = { model_dir: document.getElementById('sttModelDir').value.trim() };
        fetch('/stt/config', {
            method: 'POST', headers: {'Content-Type':'application/json'},
            body: JSON.stringify(cfg)
        }).then(function(r){ return r.json(); }).then(function(data){
            if (data.success) {
                showToast('设置已保存');
                closeSettings();
                loadModels();
            } else {
                showToast(data.error || '保存失败', true);
            }
        });
    }
    function loadModels() {
        fetch('/stt/models').then(function(r){ return r.json(); }).then(function(data){
            var sel = document.getElementById('modelSelect');
            sel.innerHTML = '';
            if (data.models && data.models.length) {
                data.models.forEach(function(m) {
                    var opt = document.createElement('option');
                    opt.value = m; opt.textContent = m;
                    sel.appendChild(opt);
                });
                startBtn.disabled = !audioFile.files.length;
            } else {
                sel.innerHTML = '<option value="" disabled selected>请先配置模型路径</option>';
                startBtn.disabled = true;
            }
        });
    }
    function loadMainConfig() {
        fetch('/stt/config').then(function(r){ return r.json(); }).then(function(cfg){
            var sel = document.getElementById('modelSelect');
            sel.innerHTML = '';
            if (cfg.model_dir && cfg.models && cfg.models.length) {
                cfg.models.forEach(function(m) {
                    var opt = document.createElement('option');
                    opt.value = m; opt.textContent = m;
                    sel.appendChild(opt);
                });
            } else {
                sel.innerHTML = '<option value="" disabled selected>请先配置模型路径</option>';
            }
        });
    }

    var audioFile = document.getElementById('audioFile');
    var fileDrop = document.getElementById('fileDrop');
    var fileName = document.getElementById('fileName');
    var dropText = document.getElementById('dropText');
    var startBtn = document.getElementById('startBtn');
    var progressWrap = document.getElementById('progressWrap');
    var progressFill = document.getElementById('progressFill');
    var progressStatus = document.getElementById('progressStatus');
    var progressPercent = document.getElementById('progressPercent');
    var resultArea = document.getElementById('resultArea');
    var resultBadge = document.getElementById('resultBadge');
    var actionBar = document.getElementById('actionBar');

    var currentFormat = 'text';
    var currentResult = '';
    var pollTimer = null;

    // 文件选择
    audioFile.addEventListener('change', function() {
        if (this.files.length > 0) {
            showFile(this.files[0]);
        }
    });

    // 拖拽
    fileDrop.addEventListener('dragover', function(e) {
        e.preventDefault(); this.classList.add('dragover');
    });
    fileDrop.addEventListener('dragleave', function() {
        this.classList.remove('dragover');
    });
    fileDrop.addEventListener('drop', function(e) {
        e.preventDefault(); this.classList.remove('dragover');
        if (e.dataTransfer.files.length > 0) {
            audioFile.files = e.dataTransfer.files;
            showFile(e.dataTransfer.files[0]);
        }
    });

    function showFile(f) {
        fileName.textContent = f.name + ' (' + formatSize(f.size) + ')';
        fileName.style.display = 'block';
        dropText.style.display = 'none';
        // 音频预览
        var preview = document.getElementById('audioPreview');
        var player = document.getElementById('audioPlayer');
        preview.src = URL.createObjectURL(f);
        player.style.display = 'block';
        resetBtn();
    }

    function formatSize(bytes) {
        if (bytes < 1024) return bytes + ' B';
        if (bytes < 1048576) return (bytes / 1024).toFixed(1) + ' KB';
        return (bytes / 1048576).toFixed(1) + ' MB';
    }

    function setFormat(btn) {
        document.querySelectorAll('.format-btn').forEach(function(b) { b.classList.remove('active'); });
        btn.classList.add('active');
        currentFormat = btn.dataset.fmt;
    }

    function showToast(msg, isError) {
        var t = document.getElementById('toast');
        t.textContent = msg;
        t.className = 'toast show' + (isError ? ' error' : '');
        setTimeout(function() { t.className = 'toast'; }, 1500);
    }

    // 开始识别
    async function startTranscribe() {
        if (!audioFile.files.length) { showToast('请先上传音频文件', true); return; }

        var formData = new FormData();
        formData.append('audio', audioFile.files[0]);
        formData.append('model', document.getElementById('modelSelect').value);
        formData.append('language', document.getElementById('langSelect').value);
        formData.append('device', document.getElementById('deviceSelect').value);
        formData.append('format', currentFormat);

        startBtn.disabled = true;
        startBtn.innerHTML = '<span class="spinner"></span> 上传中...';
        actionBar.style.display = 'none';
        resultBadge.style.display = 'none';
        resultArea.innerHTML = '<div class="placeholder"><span class="spinner" style="border-color:#e0e0e0;border-top-color:#0078d4;width:32px;height:32px;"></span><p style="color:#999;margin-top:8px;">正在上传并启动识别...</p></div>';

        try {
            var res = await fetch('/stt/transcribe', { method: 'POST', body: formData });
            var data = await res.json();

            if (data.success) {
                progressWrap.style.display = 'block';
                progressFill.style.width = '0%';
                progressStatus.textContent = '排队中...';
                progressPercent.textContent = '0%';
                startBtn.innerHTML = '<span class="spinner"></span> 识别中...';
                pollStatus(data.task_id);
            } else {
                showToast(data.error || '启动失败', true);
                resetBtn();
            }
        } catch (err) {
            showToast('请求失败: ' + err.message, true);
            resetBtn();
        }
    }

    function pollStatus(taskId) {
        if (pollTimer) clearInterval(pollTimer);
        pollTimer = setInterval(async function() {
            try {
                var res = await fetch('/stt/status/' + taskId);
                var data = await res.json();
                if (!data.success) return;

                var p = data.progress;
                var pct = Math.round((p.percent || 0) * 100);
                progressFill.style.width = pct + '%';
                progressPercent.textContent = pct + '%';

                var statusMap = {
                    queued: '排队中...', loading: '加载模型...',
                    transcribing: '识别中...', done: '识别完成', error: '识别失败'
                };
                var statusText = statusMap[p.status] || p.status;
                if (p.warning) {
                    statusText += ' (' + p.warning + ')';
                    progressStatus.style.color = '#e65100';
                }
                progressStatus.textContent = statusText;

                if (p.status === 'done') {
                    clearInterval(pollTimer);
                    pollTimer = null;
                    progressFill.style.width = '100%';
                    showResult(data.result);
                    resetBtn();
                } else if (p.status === 'error') {
                    clearInterval(pollTimer);
                    pollTimer = null;
                    showToast(p.error || '识别失败', true);
                    resultArea.innerHTML = '<div class="placeholder" style="color:#c62828;"><i class="fas fa-circle-exclamation"></i><p>' + (p.error || '识别失败') + '</p></div>';
                    resetBtn();
                }
            } catch (err) { /* 忽略网络错误，继续轮询 */ }
        }, 800);
    }

    function showResult(result) {
        currentResult = result;
        resultBadge.style.display = 'inline';

        if (currentFormat === 'srt') {
            resultBadge.textContent = 'SRT 字幕';
            var items = result.trim().split(/\n\n+/);
            var html = '<div class="result-srt">';
            items.forEach(function(block) {
                var lines = block.trim().split('\n');
                if (lines.length >= 3) {
                    html += '<div class="srt-item"><div class="srt-time">' + escapeHtml(lines[1]) + '</div><div class="srt-text">' + escapeHtml(lines.slice(2).join(' ')) + '</div></div>';
                }
            });
            html += '</div>';
            resultArea.innerHTML = html;
        } else if (currentFormat === 'json') {
            resultBadge.textContent = 'JSON';
            resultArea.innerHTML = '<pre class="result-text" style="font-size:12px;font-family:monospace;background:#fafafa;padding:12px;border-radius:6px;overflow:auto;">' + escapeHtml(JSON.stringify(result, null, 2)) + '</pre>';
        } else {
            resultBadge.textContent = '纯文本';
            resultArea.innerHTML = '<textarea class="result-textarea" id="resultTextarea">' + escapeHtml(result) + '</textarea>';
        }
        actionBar.style.display = 'flex';
    }

    function escapeHtml(s) {
        if (typeof s !== 'string') return '';
        return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
    }

    function resetBtn() {
        var hasModel = document.getElementById('modelSelect').options.length > 0 && document.getElementById('modelSelect').options[0].value !== '';
        startBtn.disabled = !audioFile.files.length || !hasModel;
        startBtn.innerHTML = '<i class="fas fa-play"></i> 开始识别';
    }

    // 复制
    function copyResult() {
        var ta = document.getElementById('resultTextarea');
        var text = (currentFormat === 'text' && ta) ? ta.value : currentResult;
        if (typeof text === 'object') text = JSON.stringify(text, null, 2);
        navigator.clipboard.writeText(text).then(function() {
            showToast('已复制到剪贴板');
        }).catch(function() {
            showToast('复制失败', true);
        });
    }

    // 下载
    function downloadResult() {
        var ta = document.getElementById('resultTextarea');
        var text = (currentFormat === 'text' && ta) ? ta.value : currentResult;
        if (typeof text === 'object') text = JSON.stringify(text, null, 2);
        var ext = currentFormat === 'srt' ? 'srt' : currentFormat === 'json' ? 'json' : 'txt';
        var blob = new Blob([text], { type: 'text/plain;charset=utf-8' });
        var a = document.createElement('a');
        a.href = URL.createObjectURL(blob);
        a.download = 'stt_result.' + ext;
        a.click();
        URL.revokeObjectURL(a.href);
    }

    // 页面加载时检测 CUDA
    (function() {
        var sel = document.getElementById('deviceSelect');
        var status = document.getElementById('cudaStatus');
        fetch('/stt/cuda-check').then(function(r) { return r.json(); }).then(function(d) {
            var cudaOpt = sel.querySelector('option[value="cuda"]');
            if (d.cuda) {
                cudaOpt.disabled = false;
                cudaOpt.textContent = 'CUDA - ' + d.name;
                sel.value = 'cuda';
                status.textContent = '已检测到 GPU，已自动选择 CUDA';
                status.style.color = '#0a7a1a';
            } else {
                cudaOpt.textContent = 'CUDA (不可用)';
                status.textContent = '未检测到 CUDA，使用 CPU';
            }
        }).catch(function() {
            sel.querySelector('option[value="cuda"]').textContent = 'CUDA (不可用)';
            status.textContent = '检测失败，使用 CPU';
        });
    })();

    // ESC 关闭弹窗
    document.addEventListener('keydown', function(e) {
        if (e.key === 'Escape') closeSettings();
    });

    // 初始化加载模型列表
    loadMainConfig();
</script>
</body>
</html>
