Implement persistent unique colors for chatters

pytchat_listener.py

@@ -3,6 +3,7 @@ import sys
 import os
 import time
 import re
+import json
 from datetime import datetime
 from rich.console import Console
 from rich.style import Style
@@ -11,21 +12,56 @@ console = Console()
 
 # Define the emoji pattern and coloring function
 emoji_pattern = re.compile(
-    r'('
-    r'\U0001F600-\U0001F64F'   # emoticons
-    r'\U0001F300-\U0001F5FF'   # symbols & pictographs
-    r'\U0001F680-\U0001F6FF'   # transport & map symbols
-    r'\U0001F1E0-\U0001F1FF'   # flags (iOS)
-    r'\u2702-\u27B0'           # Dingbats
-    r'\u24C2-\u2B55'           # Enclosed characters
-    r'\U0001F900-\U0001F9FF'   # Supplemental Symbols & Pictographs
-    r'\u200D'                  # ZWJ
-    r'\uFE0F'                  # VS-16
-    r')+', flags=re.UNICODE)
+    r"""
+    (
+    U0001F600-U0001F64F  # emoticons
+    U0001F300-U0001F5FF  # symbols & pictographs
+    U0001F680-U0001F6FF  # transport & map symbols
+    U0001F1E0-U0001F1FF  # flags (iOS)
+    U2702-U27B0           # Dingbats
+    U24C2-U2B55           # Enclosed characters
+    U0001F900-U0001F9FF  # Supplemental Symbols & Pictographs
+    U200D                  # ZWJ
+    UFE0F                  # VS-16
+    )+"""
+    , re.UNICODE | re.VERBOSE)
 
 def colour_emoji(txt):
     return emoji_pattern.sub(r'[magenta]\1[/magenta]', txt)
 
+# --- User Color Management ---
+USER_COLORS_FILE = "user_colors.json"
+
+# A palette of distinct colors for usernames
+COLOR_PALETTE = [
+    "#FF0000", "#00FF00", "#0000FF", "#FFFF00", "#00FFFF", "#FF00FF",
+    "#FFA500", "#800080", "#008000", "#FFC0CB", "#808000", "#008080",
+    "#C0C0C0", "#800000", "#000080", "#FFD700", "#ADFF2F", "#FF69B4"
+]
+
+user_color_map = {}
+
+def load_user_colors():
+    global user_color_map
+    if os.path.exists(USER_COLORS_FILE):
+        with open(USER_COLORS_FILE, 'r') as f:
+            user_color_map = json.load(f)
+
+def save_user_colors():
+    with open(USER_COLORS_FILE, 'w') as f:
+        json.dump(user_color_map, f, indent=4)
+
+def get_user_color(author_id):
+    global user_color_map
+    if author_id not in user_color_map:
+        # Assign a new color from the palette
+        # Cycle through colors, or pick randomly if palette is exhausted
+        next_color_index = len(user_color_map) % len(COLOR_PALETTE)
+        user_color_map[author_id] = COLOR_PALETTE[next_color_index]
+        save_user_colors() # Save immediately after assigning a new color
+    return user_color_map[author_id]
+
+# --- Main Script Logic ---
 def main():
     # Clear the terminal screen
     os.system('clear')
@@ -40,6 +76,9 @@ def main():
     log_file = open(log_filename, "w", encoding="utf-8")
     console.print(f"[green]Chat will be logged to {log_filename}[/green]")
 
+    # Load existing user colors
+    load_user_colors()
+
     try:
         livechat = pytchat.create(video_id=video_id)
         console.print(f"[green]Listening to live chat for video ID: {video_id}[/green]")
@@ -53,6 +92,8 @@ def main():
         while livechat.is_alive():
             for c in livechat.get().sync_items():
                 author_display_name = c.author.name
+                # pytchat provides author.channelId, which is perfect for unique identification
+                author_channel_id = c.author.channelId 
                 message_text = c.message
 
                 # Process text-based emotes (e.g., :face-purple-sweating:)
@@ -61,15 +102,14 @@ def main():
                 # Apply emoji coloring using the new function
                 message_text = colour_emoji(message_text)
 
-                # Simple color for username (can be expanded to unique colors per user)
-                username_style = Style(color="#4CAF50", bold=True)
+                # Get persistent color for the user
+                user_color = get_user_color(author_channel_id)
+                username_style = Style(color=user_color, bold=True)
 
                 # Format message for terminal
                 formatted_message = f"[{username_style}]{author_display_name}[/]: {message_text}"
 
                 # Calculate padding to fill terminal width
-                # rich handles rendering, so we need to calculate the visible width of the string
-                # and pad it. This is a simplified approach, rich's Panel might be better for complex layouts.
                 rendered_length = console.measure(formatted_message).maximum
                 padding = max(0, console.width - rendered_length)
                 padded_message = f"{formatted_message}{' ' * padding}"