Opening Bell

Introducing the Stock Ticker Feature

config/config.json

@@ -35,5 +35,13 @@
         "update_interval": 300,
         "units": "imperial",
         "display_format": "{temp}°F\n{condition}"
+    },
+    "stocks": {
+        "enabled": true,
+        "update_interval": 60,
+        "symbols": [
+            "AAPL", "MSFT", "GOOGL", "AMZN", "META", "TSLA", "NVDA", "JPM", "V", "WMT"
+        ],
+        "display_format": "{symbol}: ${price} ({change}%)"
     }
 } 

src/display_controller.py

@@ -5,6 +5,7 @@ from src.clock import Clock
 from src.weather_manager import WeatherManager
 from src.display_manager import DisplayManager
 from src.config_manager import ConfigManager
+from src.stock_manager import StockManager
 
 # Configure logging
 logging.basicConfig(level=logging.INFO)
@@ -17,6 +18,7 @@ class DisplayController:
         self.display_manager = DisplayManager(self.config.get('display', {}))
         self.clock = Clock(display_manager=self.display_manager)
         self.weather = WeatherManager(self.config, self.display_manager)
+        self.stocks = StockManager(self.config, self.display_manager)
         self.current_display = 'clock'
         self.last_switch = time.time()
         self.force_clear = True  # Start with a clear screen
@@ -31,14 +33,15 @@ class DisplayController:
                 
                 # Check if we need to switch display mode
                 if current_time - self.last_switch > self.config['display'].get('rotation_interval', 30):
-                    # Cycle through: clock -> current weather -> hourly forecast -> daily forecast
+                    # Cycle through: clock -> weather -> stocks
                     if self.current_display == 'clock':
                         self.current_display = 'weather'
                     elif self.current_display == 'weather':
-                        self.current_display = 'hourly'
-                    elif self.current_display == 'hourly':
-                        self.current_display = 'daily'
-                    else:  # daily
+                        if self.config.get('stocks', {}).get('enabled', False):
+                            self.current_display = 'stocks'
+                        else:
+                            self.current_display = 'clock'
+                    else:  # stocks
                         self.current_display = 'clock'
                     
                     logger.info("Switching display to: %s", self.current_display)
@@ -52,10 +55,8 @@ class DisplayController:
                         self.clock.display_time(force_clear=self.force_clear)
                     elif self.current_display == 'weather':
                         self.weather.display_weather(force_clear=self.force_clear)
-                    elif self.current_display == 'hourly':
-                        self.weather.display_hourly_forecast(force_clear=self.force_clear)
-                    else:  # daily
-                        self.weather.display_daily_forecast(force_clear=self.force_clear)
+                    else:  # stocks
+                        self.stocks.display_stocks(force_clear=self.force_clear)
                 except Exception as e:
                     logger.error(f"Error updating display: {e}")
                     time.sleep(1)  # Wait a bit before retrying

src/stock_manager.py

@@ -0,0 +1,224 @@
+import time
+import logging
+import requests
+import json
+import random
+from typing import Dict, Any, List, Tuple
+from datetime import datetime
+import os
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class StockManager:
+    def __init__(self, config: Dict[str, Any], display_manager):
+        self.config = config
+        self.display_manager = display_manager
+        self.stocks_config = config.get('stocks', {})
+        self.last_update = 0
+        self.stock_data = {}
+        self.current_stock_index = 0
+        self.base_url = "https://query2.finance.yahoo.com"
+        self.logo_cache = {}
+        
+        # Create logos directory if it doesn't exist
+        self.logos_dir = "assets/logos/stocks"
+        os.makedirs(self.logos_dir, exist_ok=True)
+        
+        # Default colors for stocks
+        self.default_colors = [
+            (0, 255, 0),    # Green
+            (0, 255, 255),  # Cyan
+            (255, 255, 0),  # Yellow
+            (255, 165, 0),  # Orange
+            (128, 0, 128),  # Purple
+            (255, 0, 0),    # Red
+            (0, 0, 255),    # Blue
+            (255, 192, 203) # Pink
+        ]
+        
+    def _get_stock_color(self, symbol: str) -> Tuple[int, int, int]:
+        """Get a consistent color for a stock symbol."""
+        # Use the symbol as a seed for consistent color assignment
+        random.seed(hash(symbol))
+        color_index = random.randint(0, len(self.default_colors) - 1)
+        random.seed()  # Reset the seed
+        return self.default_colors[color_index]
+        
+    def _fetch_stock_data(self, symbol: str) -> Dict[str, Any]:
+        """Fetch stock data from Yahoo Finance API."""
+        try:
+            # Use Yahoo Finance API directly
+            url = f"{self.base_url}/v8/finance/chart/{symbol}"
+            params = {
+                "interval": "1m",
+                "period": "1d"
+            }
+            response = requests.get(url, params=params)
+            data = response.json()
+            
+            if "chart" not in data or "result" not in data["chart"] or not data["chart"]["result"]:
+                logger.error(f"Invalid response for {symbol}: {data}")
+                return None
+                
+            result = data["chart"]["result"][0]
+            meta = result["meta"]
+            
+            # Extract price data
+            price = meta.get("regularMarketPrice", 0)
+            prev_close = meta.get("chartPreviousClose", 0)
+            
+            # Calculate change percentage
+            change_pct = 0
+            if prev_close > 0:
+                change_pct = ((price - prev_close) / prev_close) * 100
+                
+            # Get company name if available
+            company_name = meta.get("instrumentInfo", {}).get("longName", symbol)
+                
+            return {
+                "symbol": symbol,
+                "name": company_name,
+                "price": price,
+                "change": change_pct,
+                "open": prev_close
+            }
+        except Exception as e:
+            logger.error(f"Error fetching stock data for {symbol}: {e}")
+            return None
+            
+    def _download_logo(self, symbol: str) -> str:
+        """Download company logo for a stock symbol."""
+        logo_path = os.path.join(self.logos_dir, f"{symbol}.png")
+        
+        # If logo already exists, return the path
+        if os.path.exists(logo_path):
+            return logo_path
+            
+        try:
+            # Try to get logo from Yahoo Finance
+            url = f"{self.base_url}/v8/finance/chart/{symbol}"
+            params = {
+                "interval": "1d",
+                "period": "1d"
+            }
+            response = requests.get(url, params=params)
+            data = response.json()
+            
+            if "chart" in data and "result" in data["chart"] and data["chart"]["result"]:
+                result = data["chart"]["result"][0]
+                if "meta" in result and "logo_url" in result["meta"]:
+                    logo_url = result["meta"]["logo_url"]
+                    
+                    # Download the logo
+                    logo_response = requests.get(logo_url)
+                    if logo_response.status_code == 200:
+                        with open(logo_path, "wb") as f:
+                            f.write(logo_response.content)
+                        logger.info(f"Downloaded logo for {symbol}")
+                        return logo_path
+            
+            # If we couldn't get a logo, create a placeholder
+            self._create_placeholder_logo(symbol, logo_path)
+            return logo_path
+            
+        except Exception as e:
+            logger.error(f"Error downloading logo for {symbol}: {e}")
+            # Create a placeholder logo
+            self._create_placeholder_logo(symbol, logo_path)
+            return logo_path
+            
+    def _create_placeholder_logo(self, symbol: str, logo_path: str):
+        """Create a placeholder logo with the stock symbol."""
+        try:
+            from PIL import Image, ImageDraw, ImageFont
+            
+            # Create a 32x32 image with a colored background
+            color = self._get_stock_color(symbol)
+            img = Image.new('RGB', (32, 32), color)
+            draw = ImageDraw.Draw(img)
+            
+            # Try to load a font, fall back to default if not available
+            try:
+                font = ImageFont.truetype("assets/fonts/PressStart2P-Regular.ttf", 8)
+            except:
+                font = ImageFont.load_default()
+                
+            # Draw the symbol
+            draw.text((4, 8), symbol, fill=(255, 255, 255), font=font)
+            
+            # Save the image
+            img.save(logo_path)
+            logger.info(f"Created placeholder logo for {symbol}")
+            
+        except Exception as e:
+            logger.error(f"Error creating placeholder logo for {symbol}: {e}")
+
+    def update_stock_data(self):
+        """Update stock data if enough time has passed."""
+        current_time = time.time()
+        if current_time - self.last_update < self.stocks_config.get('update_interval', 60):
+            return
+            
+        # Get symbols from config
+        symbols = self.stocks_config.get('symbols', [])
+        
+        # If symbols is a list of strings, convert to list of dicts
+        if symbols and isinstance(symbols[0], str):
+            symbols = [{"symbol": symbol} for symbol in symbols]
+            
+        for stock in symbols:
+            symbol = stock['symbol']
+            data = self._fetch_stock_data(symbol)
+            if data:
+                # Add color if not specified
+                if 'color' not in stock:
+                    data['color'] = self._get_stock_color(symbol)
+                else:
+                    data['color'] = tuple(stock['color'])
+                    
+                # Download logo
+                data['logo_path'] = self._download_logo(symbol)
+                
+                self.stock_data[symbol] = data
+                
+        self.last_update = current_time
+
+    def display_stocks(self, force_clear: bool = False):
+        """Display stock information on the LED matrix."""
+        if not self.stocks_config.get('enabled', False):
+            return
+            
+        self.update_stock_data()
+        
+        if not self.stock_data:
+            logger.warning("No stock data available to display")
+            return
+            
+        # Clear the display if forced or if this is the first stock
+        if force_clear or self.current_stock_index == 0:
+            self.display_manager.clear()
+            
+        # Get the current stock to display
+        symbols = list(self.stock_data.keys())
+        if not symbols:
+            return
+            
+        current_symbol = symbols[self.current_stock_index]
+        data = self.stock_data[current_symbol]
+        
+        # Format the display text
+        display_format = self.stocks_config.get('display_format', "{symbol}: ${price} ({change}%)")
+        display_text = display_format.format(
+            symbol=data['symbol'],
+            price=f"{data['price']:.2f}",
+            change=f"{data['change']:+.2f}"
+        )
+        
+        # Draw the stock information
+        self.display_manager.draw_text(display_text, color=data['color'])
+        self.display_manager.update_display()
+        
+        # Move to next stock for next update
+        self.current_stock_index = (self.current_stock_index + 1) % len(symbols)