Feature/mobile (#46)

## Enhanced Chart System and Mobile Responsiveness

### Chart System Redesign
- Completely refactored chart architecture (42% code reduction)
- Pre-fill charts with historical data for instant visualization on startup
- Fixed chart glitching during tab switches and page transitions

### Visual Improvements
- Larger graphs with more space for actual data visualization
- Compact stat badges to maximize chart area
- Better spacing between charts for easier scanning
- Cleaner design with refined borders and layout

### Smart Features
- **Auto unit conversion**: PCIe stats automatically display as MB/s for values over 1000 KB/s
- **Version checker**: Shows current version and notifies about updates
- **Auto-reconnect**: WebSocket automatically reconnects after mobile lock/unlock
- **Desktop zoom**: Default 75% zoom for better overview

### Mobile Fixes
- Fixed charts not rendering on mobile devices
- Fixed GPU utilization percentage not displaying correctly
- Improved touch interactions and responsive layout

### Reliability
- Better error handling and input validation
- Improved memory management for long-running sessions
- More robust chart rendering

**Breaking Changes:** None

---

Co-authored-by: Panos <>

Author: psalias2006

app.py

@@ -3,10 +3,12 @@
 
 import asyncio
 import logging
+import aiohttp
 from fastapi import FastAPI, WebSocket, WebSocketDisconnect
 from fastapi.staticfiles import StaticFiles
-from fastapi.responses import HTMLResponse
+from fastapi.responses import HTMLResponse, JSONResponse
 from core import config
+from version import __version__
 
 # Setup logging
 logging.basicConfig(
@@ -15,7 +17,7 @@
 )
 logger = logging.getLogger(__name__)
 
-app = FastAPI(title="GPU Hot", version="2.0")
+app = FastAPI(title="GPU Hot", version=__version__)
 
 # Serve static files
 app.mount("/static", StaticFiles(directory="static"), name="static")
@@ -68,6 +70,66 @@ async def api_gpu_data():
     return {"gpus": {}, "timestamp": "no_data"}
 
 
+def compare_versions(current, latest):
+    """Compare semantic versions. Returns True if latest > current"""
+    try:
+        current_parts = [int(x) for x in current.split('.')]
+        latest_parts = [int(x) for x in latest.split('.')]
+        
+        # Pad to same length
+        max_len = max(len(current_parts), len(latest_parts))
+        current_parts += [0] * (max_len - len(current_parts))
+        latest_parts += [0] * (max_len - len(latest_parts))
+        
+        # Compare each part
+        for c, l in zip(current_parts, latest_parts):
+            if l > c:
+                return True
+            elif l < c:
+                return False
+        
+        return False  # Versions are equal
+    except (ValueError, AttributeError):
+        return False
+
+
+@app.get("/api/version")
+async def api_version():
+    """Get current version and check for updates from GitHub"""
+    current_version = __version__
+    
+    try:
+        # Check GitHub for latest release
+        async with aiohttp.ClientSession() as session:
+            async with session.get(
+                "https://api.github.com/repos/psalias2006/gpu-hot/releases/latest",
+                timeout=aiohttp.ClientTimeout(total=5)
+            ) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    latest_version = data.get("tag_name", "").lstrip("v")
+                    
+                    # Only show update if latest > current
+                    update_available = compare_versions(current_version, latest_version) if latest_version else False
+                    
+                    return JSONResponse({
+                        "current": current_version,
+                        "latest": latest_version,
+                        "update_available": update_available,
+                        "release_url": data.get("html_url", "")
+                    })
+    except Exception as e:
+        logger.debug(f"Failed to check for updates: {e}")
+    
+    # Return current version even if GitHub check fails
+    return JSONResponse({
+        "current": current_version,
+        "latest": None,
+        "update_available": False,
+        "release_url": None
+    })
+
+
 if __name__ == '__main__':
     import uvicorn
     try:

docs/demo.html

@@ -92,7 +92,8 @@ <h1>🔥 GPU Hot</h1>
     </div>
 
     <!-- Load the EXACT same JavaScript files from the real application via CDN -->
-    <script src="https://cdn.jsdelivr.net/gh/psalias2006/gpu-hot@main/static/js/charts.js"></script>
+    <script src="https://cdn.jsdelivr.net/gh/psalias2006/gpu-hot@main/static/js/chart-config.js"></script>
+    <script src="https://cdn.jsdelivr.net/gh/psalias2006/gpu-hot@main/static/js/chart-manager.js"></script>
     <script src="https://cdn.jsdelivr.net/gh/psalias2006/gpu-hot@main/static/js/gpu-cards.js"></script>
     <script src="https://cdn.jsdelivr.net/gh/psalias2006/gpu-hot@main/static/js/ui.js"></script>
 

requirements.txt

@@ -4,4 +4,5 @@ websockets==12.0
 psutil==5.9.6
 nvidia-ml-py==13.580.82
 requests==2.31.0
-websocket-client==1.6.3
+websocket-client==1.6.3
+aiohttp==3.9.1