PlateRecApp/assets/web/video.html

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>视频监控</title>
    <style>
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #1a1a2e; color: #eee; min-height: 100vh; display: flex; flex-direction: column;
        }
        .top-bar {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 12px 20px; display: flex; align-items: center; justify-content: space-between;
            flex-shrink: 0;
        }
        .top-bar h1 { font-size: 18px; color: white; }
        .nav-links { display: flex; gap: 8px; }
        .nav-link {
            background: rgba(255,255,255,0.2); color: white; padding: 6px 14px;
            border-radius: 16px; text-decoration: none; font-size: 13px;
            transition: background 0.2s; white-space: nowrap;
        }
        .nav-link:hover { background: rgba(255,255,255,0.35); }
        .nav-link.active { background: rgba(255,255,255,0.45); font-weight: bold; }

        .video-area {
            flex: 1; display: flex; flex-direction: column; align-items: center;
            padding: 16px; overflow: auto;
        }
        .video-wrapper {
            position: relative; background: #000; border-radius: 8px;
            overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            max-width: 960px; width: 100%;
        }
        .video-wrapper img { width: 100%; display: block; }
        #roi-canvas {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            cursor: crosshair; display: none; z-index: 10;
        }
        .stream-label {
            position: absolute; top: 18px; left: 12px; background: rgba(0,0,0,0.6);
            color: white; padding: 4px 10px; border-radius: 4px; font-size: 13px;
            pointer-events: none; z-index: 5;
        }
        .stream-status {
            position: absolute; top: 18px; right: 12px; background: rgba(0,0,0,0.6);
            color: #52c41a; padding: 4px 10px; border-radius: 4px; font-size: 12px;
            pointer-events: none; z-index: 5;
        }
        .stream-status.offline { color: #f5222d; }

        .controls {
            margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap;
            justify-content: center; max-width: 960px; width: 100%;
        }
        .btn {
            padding: 10px 20px; border: 1px solid #444; background: #2a2a4a;
            color: #eee; border-radius: 8px; cursor: pointer; font-size: 14px;
            transition: all 0.2s; display: flex; align-items: center; gap: 6px;
        }
        .btn:hover { background: #3a3a5a; border-color: #667eea; }
        .btn.primary { background: #667eea; border-color: #667eea; }
        .btn.primary:hover { background: #5a6ed6; }
        .btn.danger { background: #ff4d4f; border-color: #ff4d4f; color: white; }
        .btn.danger:hover { background: #e04445; }
        .btn.drawing { background: #ff4d4f; color: white; border-color: #ff4d4f; animation: pulse 1.5s infinite; }
        .btn:disabled { opacity: 0.5; cursor: not-allowed; }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }

        .roi-info {
            margin-top: 12px; padding: 12px 16px; background: #2a2a4a;
            border-radius: 8px; font-size: 13px; line-height: 1.8;
            max-width: 960px; width: 100%;
        }
        .roi-info .label { color: #999; }
        .roi-info .value { color: #667eea; font-weight: bold; }
        .help-text { margin-top: 8px; font-size: 12px; color: #666; text-align: center; }

        @media (max-width: 600px) {
            .top-bar { flex-direction: column; gap: 8px; }
            .nav-links { flex-wrap: wrap; justify-content: center; }
        }
    
        @media (max-width: 600px) {
            .top-bar { padding: 10px 12px; }
            .top-bar h1 { font-size: 15px; }
            .nav-link { padding: 4px 10px; font-size: 12px; }
            .video-area { padding: 8px; }
            .controls { gap: 6px; }
            .btn { padding: 8px 14px; font-size: 13px; }
            .roi-info { padding: 10px 12px; font-size: 12px; }
        }
    </style>
</head>
<body>
    <div class="top-bar">
        <h1 id="page-title">视频监控</h1>
        <div class="nav-links">
            <a href="/" class="nav-link">📊 监控台</a>
            <a href="/video?stream=in-low" class="nav-link" id="nav-in-low">低位进站</a>
            <a href="/video?stream=in-high" class="nav-link" id="nav-in-high">高位进站</a>
            <a href="/video?stream=out-low" class="nav-link" id="nav-out-low">低位出站</a>
            <a href="/video?stream=out-high" class="nav-link" id="nav-out-high">高位出站</a>
            <a href="/help" class="nav-link" id="nav-help" style="display:none;">📖 帮助</a>
        </div>
    </div>

    <div class="video-area">
        <div class="video-wrapper" id="video-wrapper">
            <div class="stream-label" id="stream-label">加载中...</div>
            <div class="stream-status" id="stream-status">⏳ 连接中</div>
            <div class="stream-status" id="shared-badge" style="display:none; top:18px; right:100px; background:rgba(102,126,234,0.7); color:white;">🔗 共享模式</div>
            <img id="video-stream" src="" alt="视频流">
            <canvas id="roi-canvas"></canvas>
        </div>

        <div class="controls">
            <button class="btn primary" onclick="takeSnapshot()">📷 截图</button>
            <button class="btn" id="btn-draw-roi" onclick="startDrawROI()">✏️ 绘制ROI</button>
            <button class="btn" id="btn-clear-roi" onclick="clearROI()">🗑️ 清除ROI</button>
            <button class="btn" onclick="refreshStream()">🔄 刷新视频</button>
        </div>

        <div class="roi-info" id="roi-info">
            <span class="label">加载配置中...</span>
        </div>
        <div class="help-text" id="help-text"></div>
    </div>

    <script>
    function getCookie(n){let m=document.cookie.match(new RegExp("(^| )"+n+"=([^;]+)"));return m?m[2]:"";}
    var STREAM_NAMES = {
        'in-low': '低位进站', 'in-high': '高位进站',
        'out-low': '低位出站', 'out-high': '高位出站'
    };
    var ROI_STREAMS = ['in-low', 'out-low'];
    var currentStream = 'in-low';
    var hasROI = false;
    var isDrawingROI = false;
    var drawStart = null;
    var currentROI = null;
    var videoResolution = { width: 1920, height: 1080 };

    (function init() {
        var params = new URLSearchParams(window.location.search);
        currentStream = params.get('stream') || 'in-low';
        hasROI = ROI_STREAMS.indexOf(currentStream) >= 0;
        var streamName = STREAM_NAMES[currentStream] || '未知';
        document.title = streamName + ' - 视频监控';
        document.getElementById('page-title').textContent = streamName;
        document.getElementById('stream-label').textContent = streamName;
        var navEl = document.getElementById('nav-' + currentStream);
        if (navEl) navEl.classList.add('active');
        if (!hasROI) {
            document.getElementById('btn-draw-roi').style.display = 'none';
            document.getElementById('btn-clear-roi').style.display = 'none';
            document.getElementById('help-text').textContent = '高位摄像头无ROI功能';
        } else {
            document.getElementById('help-text').innerHTML =
                'ROI仅影响推理裁剪区域，<b>上传照片仍为原始全帧</b> | ESC退出绘制模式';
        }
        startStream();
        loadRoiConfig();
        document.addEventListener('keydown', function(e) {
            if (e.key === 'Escape' && isDrawingROI) cancelDrawROI();
        });
        var img = document.getElementById('video-stream');
        img.onload = function() {
            document.getElementById('stream-status').textContent = '🟢 在线';
            document.getElementById('stream-status').className = 'stream-status';
        };
        img.onerror = function() {
            document.getElementById('stream-status').textContent = '🔴 离线';
            document.getElementById('stream-status').className = 'stream-status offline';
            setTimeout(function() {
                img.src = '/api/mjpeg?stream=' + currentStream + '&t=' + Date.now();
            }, 3000);
        };
    })();

    function startStream() {
        document.getElementById('video-stream').src = '/api/mjpeg?stream=' + currentStream + '&t=' + Date.now();
    }
    function refreshStream() {
        var img = document.getElementById('video-stream');
        img.src = '';
        setTimeout(function() { img.src = '/api/mjpeg?stream=' + currentStream + '&t=' + Date.now(); }, 100);
    }
    function takeSnapshot() {
        window.open('/api/stream?stream=' + currentStream + '&t=' + Date.now(), '_blank');
    }

    function loadRoiConfig() {
        fetch('/api/roi/config')
            .then(function(r) { return r.json(); })
            .then(function(data) {
                var roi = null;
                if (currentStream === 'in-low') roi = data.roi_in;
                else if (currentStream === 'out-low') roi = data.roi_out;
                if (data.resolution && data.resolution[currentStream]) {
                    videoResolution = data.resolution[currentStream];
                }
                // ✅ fix24-v9: 共享模式下出站页面显示提示
                if (data.shared_mode && currentStream === 'out-low') {
                    var badge = document.getElementById('shared-badge');
                    if (badge) badge.style.display = 'block';
                }
                var infoEl = document.getElementById('roi-info');
                if (!hasROI) {
                    infoEl.innerHTML = '<span class="label">高位摄像头 — 无ROI配置</span>';
                    return;
                }
                if (roi && roi.enabled) {
                    currentROI = { x: roi.x, y: roi.y, w: roi.w, h: roi.h };
                    infoEl.innerHTML =
                        '<span class="label">ROI区域:</span> <span class="value">(' +
                        roi.x + ', ' + roi.y + ') ' + roi.w + '×' + roi.h +
                        '</span> <span class="label">| 分辨率:</span> <span class="value">' +
                        videoResolution.width + '×' + videoResolution.height +
                        '</span><br><span class="label">状态:</span> <span class="value" style="color:#52c41a;">✅ 已启用</span>' +
                        ' <span class="label">| 推理裁剪，上传全帧</span>';
                } else {
                    currentROI = null;
                    infoEl.innerHTML =
                        '<span class="label">ROI状态:</span> <span class="value" style="color:#faad14;">⚪ 未启用（全帧推理）</span>' +
                        '<br><span class="label">分辨率:</span> <span class="value">' +
                        videoResolution.width + '×' + videoResolution.height + '</span>';
                }
            })
            .catch(function(e) {
                document.getElementById('roi-info').innerHTML =
                    '<span class="label" style="color:#f5222d;">⚠️ 配置加载失败</span>';
            });
    }

    function startDrawROI() {
        if (!hasROI) return;
        isDrawingROI = true;
        drawStart = null;
        var img = document.getElementById('video-stream');
        var canvas = document.getElementById('roi-canvas');
        var btn = document.getElementById('btn-draw-roi');
        img.src = '/api/stream?stream=' + currentStream + '&t=' + Date.now();
        resizeCanvas();
        canvas.style.display = 'block';
        btn.classList.add('drawing');
        btn.innerHTML = '🔲 绘制中...';
        canvas.onmousedown = onDrawStart;
        canvas.onmousemove = onDrawMove;
        canvas.onmouseup = onDrawEnd;
        canvas.ontouchstart = onTouchStart;
        canvas.ontouchmove = onTouchMove;
        canvas.ontouchend = onTouchEnd;
    }

    function cancelDrawROI() {
        isDrawingROI = false;
        drawStart = null;
        var canvas = document.getElementById('roi-canvas');
        var btn = document.getElementById('btn-draw-roi');
        canvas.style.display = 'none';
        canvas.getContext('2d').clearRect(0, 0, canvas.width, canvas.height);
        btn.classList.remove('drawing');
        btn.innerHTML = '✏️ 绘制ROI';
        startStream();
    }

    function finishDrawROI(rect) {
        var canvas = document.getElementById('roi-canvas');
        var scaleX = videoResolution.width / canvas.clientWidth;
        var scaleY = videoResolution.height / canvas.clientHeight;
        var roiX = Math.round(rect.x * scaleX);
        var roiY = Math.round(rect.y * scaleY);
        var roiW = Math.round(rect.w * scaleX);
        var roiH = Math.round(rect.h * scaleY);
        roiX = Math.max(0, Math.min(roiX, videoResolution.width - 1));
        roiY = Math.max(0, Math.min(roiY, videoResolution.height - 1));
        roiW = Math.min(roiW, videoResolution.width - roiX);
        roiH = Math.min(roiH, videoResolution.height - roiY);
        if (roiW < 50 || roiH < 50) {
            alert('ROI区域太小（最小50×50像素），请重新绘制');
            cancelDrawROI();
            return;
        }
        var side = (currentStream === 'in-low') ? 'in' : 'out';
        var sideName = (side === 'in') ? '进站' : '出站';
        if (confirm('确认应用' + sideName + 'ROI区域？\n坐标: (' + roiX + ', ' + roiY + ')\n尺寸: ' + roiW + '×' + roiH)) {
            fetch('/api/roi/update', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json', 'X-CSRF-Token': getCookie('csrf_token') },
                body: JSON.stringify({ side: side, x: roiX, y: roiY, w: roiW, h: roiH, enabled: true })
            })
            .then(function(r) { return r.json(); })
            .then(function(data) {
                if (data.success) {
                    alert('✅ ' + sideName + 'ROI已更新并保存到config.ini');
                    loadRoiConfig();
                } else {
                    alert('❌ 更新失败: ' + (data.message || '未知错误'));
                }
            })
            .catch(function(e) { alert('请求失败: ' + e); });
        }
        cancelDrawROI();
    }

    function clearROI() {
        if (!hasROI) return;
        var side = (currentStream === 'in-low') ? 'in' : 'out';
        var sideName = (side === 'in') ? '进站' : '出站';
        if (!confirm('确定清除' + sideName + 'ROI区域？\n清除后将使用全帧推理')) return;
        fetch('/api/roi/update', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json', 'X-CSRF-Token': getCookie('csrf_token') },
            body: JSON.stringify({ side: side, x: 0, y: 0, w: 0, h: 0, enabled: false })
        })
        .then(function(r) { return r.json(); })
        .then(function(data) {
            if (data.success) {
                alert('✅ ROI已清除，恢复全帧推理');
                loadRoiConfig();
            } else {
                alert('❌ 清除失败: ' + (data.message || '未知错误'));
            }
        })
        .catch(function(e) { alert('请求失败: ' + e); });
    }

    function resizeCanvas() {
        var wrapper = document.getElementById('video-wrapper');
        var canvas = document.getElementById('roi-canvas');
        canvas.width = wrapper.clientWidth;
        canvas.height = wrapper.clientHeight;
    }

    function getCanvasPos(e) {
        var rect = document.getElementById('roi-canvas').getBoundingClientRect();
        return { x: e.clientX - rect.left, y: e.clientY - rect.top };
    }

    function onDrawStart(e) { drawStart = getCanvasPos(e); }
    function onDrawMove(e) {
        if (!drawStart) return;
        var canvas = document.getElementById('roi-canvas');
        var ctx = canvas.getContext('2d');
        var pos = getCanvasPos(e);
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        var rx = Math.min(drawStart.x, pos.x);
        var ry = Math.min(drawStart.y, pos.y);
        var rw = Math.abs(pos.x - drawStart.x);
        var rh = Math.abs(pos.y - drawStart.y);
        ctx.fillStyle = 'rgba(255, 0, 0, 0.15)';
        ctx.fillRect(rx, ry, rw, rh);
        ctx.strokeStyle = '#ff0000';
        ctx.lineWidth = 2;
        ctx.setLineDash([6, 3]);
        ctx.strokeRect(rx, ry, rw, rh);
        ctx.setLineDash([]);
        var scaleX = videoResolution.width / canvas.clientWidth;
        var scaleY = videoResolution.height / canvas.clientHeight;
        ctx.fillStyle = '#ff0000';
        ctx.font = '14px sans-serif';
        ctx.fillText(Math.round(rw * scaleX) + '×' + Math.round(rh * scaleY), rx + 4, ry + 18);
    }
    function onDrawEnd(e) {
        if (!drawStart) return;
        var pos = getCanvasPos(e);
        var x = Math.min(drawStart.x, pos.x);
        var y = Math.min(drawStart.y, pos.y);
        var w = Math.abs(pos.x - drawStart.x);
        var h = Math.abs(pos.y - drawStart.y);
        if (w < 5 || h < 5) { cancelDrawROI(); return; }
        finishDrawROI({ x: x, y: y, w: w, h: h });
    }

    function onTouchStart(e) {
        e.preventDefault();
        var t = e.touches[0];
        onDrawStart({ clientX: t.clientX, clientY: t.clientY });
    }
    function onTouchMove(e) {
        e.preventDefault();
        var t = e.touches[0];
        onDrawMove({ clientX: t.clientX, clientY: t.clientY });
    }
    function onTouchEnd(e) {
        e.preventDefault();
        var t = e.changedTouches[0];
        onDrawEnd({ clientX: t.clientX, clientY: t.clientY });
    }

    // 角色检查：仅超级管理员可看到帮助链接
    fetch('/api/auth/status', {credentials:'same-origin'}).then(r=>r.json()).then(data=>{
        if(data.authenticated && data.role >= 2){
            var el = document.getElementById('nav-help');
            if(el) el.style.display = '';
        }
    }).catch(()=>{});
    </script>
</body>
</html>