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uiserver/scripts/migrate.js

@@ -12,7 +12,7 @@ console.log(`[Migrate] Connected to ${dbPath}`);
 console.log('[Migrate] Applying schema migrations...');
 
 try {
-    db.exec(`
+  db.exec(`
     CREATE TABLE IF NOT EXISTS users (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       username TEXT UNIQUE NOT NULL,
@@ -30,9 +30,20 @@ try {
       FOREIGN KEY(created_by) REFERENCES users(id)
     );
   `);
-    console.log('[Migrate] Schema applied successfully.');
+
+  // Add position column if not exists
+  try {
+    db.exec("ALTER TABLE views ADD COLUMN position INTEGER DEFAULT 0");
+    console.log('[Migrate] Added position column to views table.');
+  } catch (e) {
+    if (!e.message.includes("duplicate column name")) {
+      console.log('[Migrate] NOTE: ' + e.message);
+    }
+  }
+
+  console.log('[Migrate] Schema applied successfully.');
 } catch (err) {
-    console.error('[Migrate] Error applying schema:', err.message);
+  console.error('[Migrate] Error applying schema:', err.message);
 } finally {
-    db.close();
+  db.close();
 }

uiserver/src/components/Chart.js

@@ -99,7 +99,9 @@ export default class Chart extends Component {
 
                     for (let i = 0; i < points.length; i++) {
                         const [tsStr, rawVal, untilStr] = points[i];
-                        const val = Number(rawVal);
+                        const numVal = Number(rawVal);
+                        // MUI-X charts only accepts numbers and null - NaN causes errors
+                        const val = Number.isNaN(numVal) ? null : numVal;
 
                         let start = new Date(tsStr).getTime();
                         let explicitEnd = untilStr ? new Date(untilStr).getTime() : null;
@@ -230,12 +232,14 @@ export default class Chart extends Component {
             let label = id;
             let yAxisKey = 'left';
             let color = undefined;
+            let fillColor = undefined;
             if (channelConfig) {
                 const item = channelConfig.find(c => c.id === id);
                 if (item) {
                     if (item.alias) label = item.alias;
                     if (item.yAxis) yAxisKey = item.yAxis;
                     if (item.color) color = item.color;
+                    if (item.fillColor) fillColor = item.fillColor;
                 }
             }
 
@@ -247,6 +251,16 @@ export default class Chart extends Component {
                 yAxisKey: yAxisKey,
             };
             if (color) sObj.color = color;
+            // Enable area fill if fillColor is set (with 50% transparency)
+            if (fillColor) {
+                sObj.area = true;
+                // Convert hex to rgba with 50% opacity
+                const hex = fillColor.replace('#', '');
+                const r = parseInt(hex.substring(0, 2), 16);
+                const g = parseInt(hex.substring(2, 4), 16);
+                const b = parseInt(hex.substring(4, 6), 16);
+                sObj.areaColor = `rgba(${r}, ${g}, ${b}, 0.5)`;
+            }
             return sObj;
         });
 
@@ -289,6 +303,15 @@ export default class Chart extends Component {
                                     position: { vertical: 'top', horizontal: 'middle' },
                                     padding: 0,
                                 },
+                                lineHighlight: { strokeWidth: 3 },
+                            }}
+                            sx={{
+                                '& .MuiLineElement-root': {
+                                    strokeWidth: 3,
+                                },
+                                '& .MuiAreaElement-root': {
+                                    fillOpacity: 0.5,
+                                },
                             }}
                         />
                     </Box>

uiserver/src/components/ViewManager.js

@@ -44,6 +44,7 @@ class ViewManager extends Component {
             views: [],
             open: false,
             colorPickerOpen: false,
+            colorPickerMode: 'line',
             editingId: null,
             viewName: '',
             availableDevices: [],
@@ -101,7 +102,6 @@ class ViewManager extends Component {
     };
 
     parseViewData(view) {
-        // Flatten config for display/editing
         let channels = [];
         let axes = { left: { min: '', max: '' }, right: { min: '', max: '' } };
 
@@ -109,28 +109,20 @@ class ViewManager extends Component {
         if (!config) return { channels, axes };
 
         if (Array.isArray(config)) {
-            // Very old legacy (array of channels)
             channels = config;
         } else if (config.groups) {
-            // Group format (Recent) - Flatten it!
             config.groups.forEach(g => {
-                if (g.channels) {
+                if (g.channels) channels = [...channels, ...g.channels];
-                    channels = [...channels, ...g.channels];
-                }
-                // Merge axes? Just take first group's axes or default?
-                // Let's defer to default or first group if present
                 if (g.axes) {
                     if (g.axes.left) axes.left = { ...axes.left, ...g.axes.left };
                     if (g.axes.right) axes.right = { ...axes.right, ...g.axes.right };
                 }
             });
         } else if (config.channels) {
-            // Standard Legacy
             channels = config.channels;
             if (config.axes) axes = config.axes;
         }
 
-        // Normalize channels
         channels = channels.map((c, i) => ({
             ...c,
             color: c.color || this.getNextColor(i)
@@ -180,6 +172,35 @@ class ViewManager extends Component {
         this.refreshViews();
     };
 
+    moveView = async (idx, dir) => {
+        const newViews = [...this.state.views];
+        const target = idx + dir;
+        if (target < 0 || target >= newViews.length) return;
+
+        [newViews[idx], newViews[target]] = [newViews[target], newViews[idx]];
+        this.setState({ views: newViews });
+
+        const order = newViews.map((v, i) => ({ id: v.id, position: i }));
+        const { user } = this.props;
+
+        try {
+            const res = await fetch('/api/views/reorder', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'Authorization': `Bearer ${user.token}`
+                },
+                body: JSON.stringify({ order })
+            });
+            if (!res.ok) {
+                const err = await res.json();
+                console.error("Failed to save order:", err);
+            }
+        } catch (err) {
+            console.error("Failed to save order", err);
+        }
+    };
+
     handleSave = async () => {
         const { viewName, viewConfig, axisConfig, editingId } = this.state;
         const { user } = this.props;
@@ -189,7 +210,6 @@ class ViewManager extends Component {
         const url = editingId ? `/api/views/${editingId}` : '/api/views';
         const method = editingId ? 'PUT' : 'POST';
 
-        // Save as flat format again
         const finalConfig = {
             channels: viewConfig,
             axes: axisConfig
@@ -261,20 +281,33 @@ class ViewManager extends Component {
         }));
     };
 
-    openColorPicker = (idx) => {
+    openColorPicker = (idx, mode = 'line') => {
-        this.setState({ colorPickerOpen: true, pickerTargetIndex: idx });
+        this.setState({ colorPickerOpen: true, pickerTargetIndex: idx, colorPickerMode: mode });
     };
 
     selectColor = (color) => {
-        const { pickerTargetIndex, viewConfig } = this.state;
+        const { pickerTargetIndex, viewConfig, colorPickerMode } = this.state;
         if (pickerTargetIndex !== null) {
-            const newConfig = [...viewConfig];
+            const newConfig = viewConfig.map((ch, i) => {
-            newConfig[pickerTargetIndex].color = color;
+                if (i === pickerTargetIndex) {
+                    if (colorPickerMode === 'fill') {
+                        return { ...ch, fillColor: color };
+                    } else {
+                        return { ...ch, color: color };
+                    }
+                }
+                return ch;
+            });
             this.setState({ viewConfig: newConfig, colorPickerOpen: false, pickerTargetIndex: null });
         }
     };
 
-    // --- Navigation ---
+    clearFillColor = (idx) => {
+        const newConfig = [...this.state.viewConfig];
+        delete newConfig[idx].fillColor;
+        this.setState({ viewConfig: newConfig });
+    };
+
     handleRangeChange = (e, newVal) => {
         if (newVal) this.setState({ rangeLabel: newVal });
     };
@@ -315,7 +348,6 @@ class ViewManager extends Component {
 
         return (
             <Container maxWidth="xl" sx={{ mt: 4 }}>
-                {/* Global Time Controls */}
                 <Paper sx={{ position: 'sticky', top: 10, zIndex: 1000, p: 2, mb: 4, display: 'flex', alignItems: 'center', justifyContent: 'space-between', border: '1px solid #504945' }}>
                     <Box sx={{ display: 'flex', alignItems: 'center', gap: 2 }}>
                         <ToggleButtonGroup value={rangeLabel} exclusive onChange={this.handleRangeChange} size="small">
@@ -330,14 +362,21 @@ class ViewManager extends Component {
                     {isAdmin && <Button variant="contained" startIcon={<AddIcon />} onClick={this.handleOpenCreate}>Create View</Button>}
                 </Paper>
 
-                {/* View List */}
                 <Box sx={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
-                    {views.map(view => {
+                    {views.map((view, vIdx) => {
                         const { channels, axes } = this.parseViewData(view);
                         return (
                             <Paper key={view.id} sx={{ p: 2, display: 'flex', flexDirection: 'column' }}>
                                 <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', mb: 1 }}>
-                                    <Typography variant="h4">{view.name}</Typography>
+                                    <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
+                                        <Typography variant="h4">{view.name}</Typography>
+                                        {isAdmin && (
+                                            <>
+                                                <IconButton size="small" onClick={() => this.moveView(vIdx, -1)} disabled={vIdx === 0}><ArrowUpwardIcon /></IconButton>
+                                                <IconButton size="small" onClick={() => this.moveView(vIdx, 1)} disabled={vIdx === views.length - 1}><ArrowDownwardIcon /></IconButton>
+                                            </>
+                                        )}
+                                    </Box>
                                     {isAdmin && (
                                         <Box>
                                             <IconButton onClick={(e) => this.handleOpenEdit(view, e)}><EditIcon /></IconButton>
@@ -351,7 +390,8 @@ class ViewManager extends Component {
                                             id: `${c.device}:${c.channel}`,
                                             alias: c.alias,
                                             yAxis: c.yAxis || 'left',
-                                            color: c.color
+                                            color: c.color,
+                                            fillColor: c.fillColor
                                         }))}
                                         axisConfig={axes}
                                         windowEnd={windowEnd}
@@ -364,7 +404,6 @@ class ViewManager extends Component {
                     {views.length === 0 && <Typography>No views available.</Typography>}
                 </Box>
 
-                {/* Edit Dialog */}
                 <Dialog open={open} onClose={() => this.setState({ open: false })} maxWidth="md" fullWidth>
                     <DialogTitle>{editingId ? 'Edit View' : 'Create New View'}</DialogTitle>
                     <DialogContent>
@@ -373,7 +412,6 @@ class ViewManager extends Component {
                             onChange={(e) => this.setState({ viewName: e.target.value })} sx={{ mb: 2 }}
                         />
 
-                        {/* Axis Config */}
                         <Box sx={{ p: 2, border: '1px solid #444', borderRadius: 1, mb: 2 }}>
                             <Typography variant="subtitle2" gutterBottom>Axis Configuration</Typography>
                             <Box sx={{ display: 'flex', gap: 2 }}>
@@ -395,9 +433,17 @@ class ViewManager extends Component {
                             <List dense>
                                 {viewConfig.map((ch, idx) => (
                                     <ListItem key={idx} sx={{ pl: 0 }}>
-                                        <IconButton size="small" onClick={() => this.openColorPicker(idx)}>
+                                        <IconButton size="small" onClick={() => this.openColorPicker(idx, 'line')} title="Line color">
-                                            <Box sx={{ width: 20, height: 20, bgcolor: ch.color || '#fff', borderRadius: '50%' }} />
+                                            <Box sx={{ width: 20, height: 20, bgcolor: ch.color || '#fff', borderRadius: '50%', border: '2px solid #fff' }} />
                                         </IconButton>
+                                        <IconButton size="small" onClick={() => this.openColorPicker(idx, 'fill')} title="Fill color (area)">
+                                            <Box sx={{ width: 20, height: 20, bgcolor: ch.fillColor || 'transparent', borderRadius: '50%', border: ch.fillColor ? '2px solid #fff' : '2px dashed #666' }} />
+                                        </IconButton>
+                                        {ch.fillColor && (
+                                            <IconButton size="small" onClick={() => this.clearFillColor(idx)} title="Remove fill" sx={{ ml: -0.5 }}>
+                                                <DeleteIcon sx={{ fontSize: 14 }} />
+                                            </IconButton>
+                                        )}
                                         <ListItemText
                                             primary={ch.alias}
                                             secondary={`${ch.device}:${ch.channel} (${ch.yAxis})`}
@@ -410,7 +456,6 @@ class ViewManager extends Component {
                                 ))}
                             </List>
 
-                            {/* Add Channel */}
                             <Box sx={{ display: 'flex', gap: 1, alignItems: 'center', mt: 1, bgcolor: '#32302f', p: 1, borderRadius: 1 }}>
                                 <Select size="small" value={paramSelDevice} displayEmpty onChange={e => this.setState({ paramSelDevice: e.target.value })} sx={{ minWidth: 120 }}>
                                     <MenuItem value=""><em>Device</em></MenuItem>
@@ -435,7 +480,6 @@ class ViewManager extends Component {
                     </DialogActions>
                 </Dialog>
 
-                {/* Color Picker Dialog */}
                 <Dialog open={colorPickerOpen} onClose={() => this.setState({ colorPickerOpen: false })}>
                     <DialogTitle>Select Color</DialogTitle>
                     <DialogContent>

uiserver/webpack.config.js

@@ -131,7 +131,7 @@ module.exports = {
             // Publicly list views
             app.get('/api/views', (req, res) => {
                 try {
-                    const stmt = db.prepare('SELECT * FROM views ORDER BY name');
+                    const stmt = db.prepare('SELECT * FROM views ORDER BY position ASC, id ASC');
                     const rows = stmt.all();
                     const views = rows.map(row => {
                         try {
@@ -192,6 +192,30 @@ module.exports = {
                 }
             });
 
+            // Reorder Views
+            app.post('/api/views/reorder', requireAdmin, (req, res) => {
+                const { order } = req.body;
+                console.log('[API] Reorder request:', order);
+                if (!Array.isArray(order)) return res.status(400).json({ error: 'Invalid format' });
+
+                const updateStmt = db.prepare('UPDATE views SET position = ? WHERE id = ?');
+                const updateMany = db.transaction((items) => {
+                    for (const item of items) {
+                        console.log('[API] Updating view', item.id, 'to position', item.position);
+                        updateStmt.run(item.position, item.id);
+                    }
+                });
+
+                try {
+                    updateMany(order);
+                    console.log('[API] Reorder successful');
+                    res.json({ success: true });
+                } catch (err) {
+                    console.error('[API] Reorder error:', err);
+                    res.status(500).json({ error: err.message });
+                }
+            });
+
             // GET /api/devices
             // Returns list of unique device/channel pairs
             app.get('/api/devices', (req, res) => {