Update app.py

app.py

@@ -6,45 +6,221 @@ from datetime import datetime, timedelta
 import time
 import uuid
 
-# Page configuration
+# Page configuration - IMPROVED for mobile
 st.set_page_config(
     page_title="Chat Flow 🕷",
     page_icon="💬",
-    initial_sidebar_state="collapsed"
+    initial_sidebar_state="auto",  # Changed from collapsed to auto
+    layout="wide"  # Better for mobile
 )
 
-# White background
+# MOBILE-RESPONSIVE CSS
 st.markdown("""
 <style>
+    /* Main app styling */
     .stApp {
-        background: white;
+        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+        min-height: 100vh;
     }
     
+    /* Container responsive sizing */
     .main .block-container {
-        max-width: 800px;
+        max-width: 100%;
+        padding-left: 1rem;
+        padding-right: 1rem;
+        padding-top: 1rem;
     }
     
+    /* Hide Streamlit branding */
     #MainMenu {visibility: hidden;}
     footer {visibility: hidden;}
     header {visibility: hidden;}
     .stDeployButton {display: none;}
     
+    /* Chat container styling */
+    .stChatMessage {
+        background: rgba(255, 255, 255, 0.95);
+        border-radius: 15px;
+        margin: 0.5rem 0;
+        padding: 1rem;
+        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+        backdrop-filter: blur(10px);
+    }
+    
+    /* User messages - right aligned with blue background */
+    .stChatMessage[data-testid="user-message"] {
+        background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
+        color: white;
+        margin-left: 20%;
+    }
+    
+    /* Assistant messages - left aligned with white background */
+    .stChatMessage[data-testid="assistant-message"] {
+        background: rgba(255, 255, 255, 0.98);
+        color: #333;
+        margin-right: 20%;
+    }
+    
+    /* Mobile responsiveness */
+    @media (max-width: 768px) {
+        .main .block-container {
+            padding: 0.5rem;
+            max-width: 100%;
+        }
+        
+        .stChatMessage[data-testid="user-message"] {
+            margin-left: 10%;
+            font-size: 14px;
+        }
+        
+        .stChatMessage[data-testid="assistant-message"] {
+            margin-right: 10%;
+            font-size: 14px;
+        }
+        
+        /* Make sidebar collapsible on mobile */
+        .css-1d391kg {
+            width: 100% !important;
+            min-width: 100% !important;
+        }
+        
+        /* Header adjustments for mobile */
+        h1 {
+            font-size: 1.5rem !important;
+            text-align: center;
+        }
+        
+        .stSelectbox label {
+            font-size: 14px;
+        }
+        
+        .stButton button {
+            font-size: 14px;
+            padding: 0.5rem;
+        }
+    }
+    
+    /* Extra small screens (iPhone 5, etc) */
+    @media (max-width: 480px) {
+        .main .block-container {
+            padding: 0.25rem;
+        }
+        
+        .stChatMessage {
+            padding: 0.75rem;
+            margin: 0.25rem 0;
+        }
+        
+        .stChatMessage[data-testid="user-message"] {
+            margin-left: 5%;
+        }
+        
+        .stChatMessage[data-testid="assistant-message"] {
+            margin-right: 5%;
+        }
+        
+        h1 {
+            font-size: 1.2rem !important;
+        }
+        
+        .stChatInput {
+            font-size: 16px; /* Prevents zoom on iOS */
+        }
+    }
+    
+    /* Chat input styling */
+    .stChatInput {
+        background: rgba(255, 255, 255, 0.9);
+        border-radius: 25px;
+        border: 2px solid rgba(255, 255, 255, 0.3);
+        backdrop-filter: blur(10px);
+    }
+    
+    .stChatInput input {
+        background: transparent;
+        border: none;
+        color: #333;
+    }
+    
+    .stChatInput input::placeholder {
+        color: #666;
+    }
+    
+    /* Sidebar improvements */
+    .css-1d391kg {
+        background: rgba(255, 255, 255, 0.95);
+        backdrop-filter: blur(15px);
+    }
+    
+    /* Model info styling */
     .model-id {
         color: #28a745;
         font-family: monospace;
+        font-weight: bold;
     }
     
     .model-attribution {
         color: #28a745;
         font-size: 0.8em;
         font-style: italic;
+        text-align: right;
+        margin-top: 0.5rem;
+        padding-top: 0.5rem;
+        border-top: 1px solid #eee;
+    }
+    
+    /* Status indicators */
+    .online-indicator {
+        display: inline-block;
+        width: 10px;
+        height: 10px;
+        background: #28a745;
+        border-radius: 50%;
+        margin-right: 5px;
+    }
+    
+    /* Button improvements */
+    .stButton button {
+        border-radius: 10px;
+        border: none;
+        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+        color: white;
+        transition: all 0.3s;
+    }
+    
+    .stButton button:hover {
+        transform: translateY(-2px);
+        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
+    }
+    
+    /* Title styling */
+    h1 {
+        color: white;
+        text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
+        margin-bottom: 0;
+    }
+    
+    .stCaption {
+        color: rgba(255, 255, 255, 0.8);
+        text-align: center;
+    }
+    
+    /* Responsive text sizing */
+    @media (max-width: 600px) {
+        .stMarkdown {
+            font-size: 14px;
+        }
+        
+        .stCaption {
+            font-size: 12px;
+        }
     }
 </style>
 """, unsafe_allow_html=True)
 
 # File to store chat history
 HISTORY_FILE = "chat_history.json"
-# NEW: File to store online users
+# File to store online users
 USERS_FILE = "online_users.json"
 
 def load_chat_history():
@@ -74,27 +250,25 @@ def clear_chat_history():
     except Exception as e:
         st.error(f"Error clearing chat history: {e}")
 
-# NEW: User tracking functions
+# User tracking functions
 def get_user_id():
     """Get unique ID for this user session"""
     if 'user_id' not in st.session_state:
-        st.session_state.user_id = str(uuid.uuid4())[:8]  # Short ID for family use
+        st.session_state.user_id = str(uuid.uuid4())[:8]
     return st.session_state.user_id
 
 def update_online_users():
     """Update that this user is online right now"""
     try:
-        # Load current online users
         users = {}
         if os.path.exists(USERS_FILE):
             with open(USERS_FILE, 'r') as f:
                 users = json.load(f)
         
-        # Add/update this user
         user_id = get_user_id()
         users[user_id] = {
             'last_seen': datetime.now().isoformat(),
-            'name': f'User-{user_id}'  # You can customize this
+            'name': f'User-{user_id}'
         }
         
         # Remove users not seen in last 5 minutes
@@ -105,13 +279,12 @@ def update_online_users():
             if current_time - last_seen < timedelta(minutes=5):
                 active_users[uid] = data
         
-        # Save updated list
         with open(USERS_FILE, 'w') as f:
             json.dump(active_users, f, indent=2)
         
         return len(active_users)
     except Exception:
-        return 1  # If error, assume at least you're online
+        return 1
 
 def get_online_count():
     """Get number of people currently online"""
@@ -122,7 +295,6 @@ def get_online_count():
         with open(USERS_FILE, 'r') as f:
             users = json.load(f)
         
-        # Check who's still active (last 5 minutes)
         current_time = datetime.now()
         active_count = 0
         for data in users.values():
@@ -161,11 +333,10 @@ def get_ai_response(messages, model="openai/gpt-3.5-turbo"):
     headers = {
         "Content-Type": "application/json",
         "Authorization": f"Bearer {OPENROUTER_API_KEY}",
-        "HTTP-Referer": "http://localhost:8501",  # Optional: Your site URL
-        "X-Title": "Streamlit AI Assistant"  # Optional: Your app name
+        "HTTP-Referer": "http://localhost:8501",
+        "X-Title": "Streamlit AI Assistant"
     }
     
-    # Create system message and user messages
     api_messages = [{"role": "system", "content": "You are a helpful AI assistant. Provide clear and helpful responses."}]
     api_messages.extend(messages)
     
@@ -183,7 +354,6 @@ def get_ai_response(messages, model="openai/gpt-3.5-turbo"):
     try:
         response = requests.post(url, headers=headers, json=data, stream=True, timeout=60)
         
-        # Better error handling
         if response.status_code != 200:
             error_detail = ""
             try:
@@ -196,12 +366,9 @@ def get_ai_response(messages, model="openai/gpt-3.5-turbo"):
             return
         
         full_response = ""
-        buffer = ""
         
-        # Using your working streaming logic
         for line in response.iter_lines():
             if line:
-                # The server sends lines starting with "data: ..."
                 if line.startswith(b"data: "):
                     data_str = line[len(b"data: "):].decode("utf-8")
                     if data_str.strip() == "[DONE]":
@@ -226,46 +393,43 @@ def get_ai_response(messages, model="openai/gpt-3.5-turbo"):
     except Exception as e:
         yield f"Unexpected error: {str(e)}. Please try again or contact support."
 
-# Header
-st.title("Chat Flow 🕷")
-st.caption("10 powerful Models, one simple chat.")
+# MAIN UI LAYOUT - Mobile First Approach
+col1, col2, col3 = st.columns([1, 2, 1])
+with col2:
+    st.title("Chat Flow 🕷")
+    st.caption("10 powerful Models, one simple chat.")
 
-# Sidebar
+# Mobile-friendly sidebar
 with st.sidebar:
-    st.header("Settings")
+    st.header("⚙️ Settings")
     
-    # API Status
+    # API Status with better mobile display
     status = check_api_status()
     if status == "Connected":
         st.success("🟢 API Connected")
     elif status == "No API Key":
-        st.error("No API Key")
+        st.error("❌ No API Key")
     else:
-        st.warning("Connection Issue")
+        st.warning("⚠️ Connection Issue")
     
     st.divider()
     
-    # NEW: Live Users Section
-    st.header("👥 Who's Online")
-    
-    # Update that you're online
+    # Online Users Section - Mobile Optimized
+    st.header("👥 Live Users")
     online_count = update_online_users()
     
-    # Show live count
     if online_count == 1:
         st.info("🟢 Just you online")
     else:
         st.success(f"🟢 {online_count} people online")
     
-    # Show your session
     your_id = get_user_id()
     st.caption(f"You: User-{your_id}")
     
-    # Quick refresh button
-    if st.button("Refresh", use_container_width=True):
+    if st.button("🔄 Refresh", use_container_width=True):
         st.rerun()
     
-    # === NEW: DEBUG SECTION ===
+    # Debug section - collapsible for mobile
     with st.expander("🔍 Debug Info"):
         if os.path.exists(USERS_FILE):
             with open(USERS_FILE, 'r') as f:
@@ -278,11 +442,11 @@ with st.sidebar:
                 st.write(f"- {uid}: {minutes_ago} min ago")
         else:
             st.write("No users file yet")
-    # === END DEBUG SECTION ===
     
     st.divider()
     
-    # All models including new ones
+    # Model Selection - Mobile Optimized
+    st.header("🤖 AI Models")
     models = [
         ("GPT-3.5 Turbo", "openai/gpt-3.5-turbo"),
         ("LLaMA 3.1 8B", "meta-llama/llama-3.1-8b-instruct"),
@@ -299,77 +463,66 @@ with st.sidebar:
     model_names = [name for name, _ in models]
     model_ids = [model_id for _, model_id in models]
     
-    selected_index = st.selectbox("Model", range(len(model_names)), 
+    selected_index = st.selectbox("Choose Model", range(len(model_names)), 
                                 format_func=lambda x: model_names[x], 
                                 index=0)
     selected_model = model_ids[selected_index]
     
-    # Show selected model ID in green
     st.markdown(f"**Model ID:** <span class='model-id'>{selected_model}</span>", unsafe_allow_html=True)
     
     st.divider()
     
-    # Chat History Controls
-    st.header("Chat History")
+    # Chat History Controls - Mobile Friendly
+    st.header("💬 Chat History")
     
-    # Show number of messages
     if st.session_state.messages:
-        st.info(f"Messages stored: {len(st.session_state.messages)}")
+        st.info(f"📝 {len(st.session_state.messages)} messages stored")
     
-    # Auto-save toggle
     auto_save = st.checkbox("Auto-save messages", value=True)
     
-    # Manual save/load buttons
+    # Compact buttons for mobile
     col1, col2 = st.columns(2)
     with col1:
-        if st.button("Save History", use_container_width=True):
+        if st.button("💾 Save", use_container_width=True):
             save_chat_history(st.session_state.messages)
-            st.success("History saved!")
+            st.success("Saved!")
     
     with col2:
-        if st.button("Load History", use_container_width=True):
+        if st.button("📂 Load", use_container_width=True):
             st.session_state.messages = load_chat_history()
-            st.success("History loaded!")
+            st.success("Loaded!")
             st.rerun()
     
-    st.divider()
-    
-    # View History
-    if st.button("View History File", use_container_width=True):
+    # Additional controls in expander to save space
+    with st.expander("More Options"):
+        if st.button("👁️ View History File", use_container_width=True):
+            if os.path.exists(HISTORY_FILE):
+                with open(HISTORY_FILE, 'r', encoding='utf-8') as f:
+                    history_content = f.read()
+                st.text_area("Chat History (JSON)", history_content, height=150)
+            else:
+                st.warning("No history file found")
+        
+        # Download History
         if os.path.exists(HISTORY_FILE):
-            with open(HISTORY_FILE, 'r', encoding='utf-8') as f:
-                history_content = f.read()
-            st.text_area("Chat History (JSON)", history_content, height=200)
-        else:
-            st.warning("No history file found")
-    
-    # Download History
-    if os.path.exists(HISTORY_FILE):
-        with open(HISTORY_FILE, 'rb') as f:
-            st.download_button(
-                label="Download History",
-                data=f.read(),
-                file_name=f"chat_history_{datetime.now().strftime('%Y%m%d_%H%M%S')}.json",
-                mime="application/json",
-                use_container_width=True
-            )
-    
-    st.divider()
-    
-    # Clear controls
-    if st.button("Clear Chat", use_container_width=True, type="secondary"):
-        clear_chat_history()
-        st.success("Chat cleared!")
-        st.rerun()
-
-# Show welcome message when no messages
+            with open(HISTORY_FILE, 'rb') as f:
+                st.download_button(
+                    label="⬇️ Download History",
+                    data=f.read(),
+                    file_name=f"chat_history_{datetime.now().strftime('%Y%m%d_%H%M%S')}.json",
+                    mime="application/json",
+                    use_container_width=True
+                )
+        
+        if st.button("🗑️ Clear Chat", use_container_width=True, type="secondary"):
+            clear_chat_history()
+            st.success("Chat cleared!")
+            st.rerun()
 
-# Display chat messages
+# Display chat messages with responsive design
 for message in st.session_state.messages:
     with st.chat_message(message["role"]):
-        # Check if this is an assistant message with attribution
         if message["role"] == "assistant" and "Response created by:" in message["content"]:
-            # Split content and attribution
             parts = message["content"].split("\n\n---\n*Response created by:")
             main_content = parts[0]
             if len(parts) > 1:
@@ -381,24 +534,19 @@ for message in st.session_state.messages:
         else:
             st.markdown(message["content"])
 
-# Chat input
-if prompt := st.chat_input("Chat Smarter. Chat many Brains"):
-    # NEW: Update online status when user sends message
+# Chat input with mobile-friendly placeholder
+if prompt := st.chat_input("💬 Chat with AI... (works on all devices!)"):
     update_online_users()
     
-    # Add user message
     user_message = {"role": "user", "content": prompt}
     st.session_state.messages.append(user_message)
     
-    # Auto-save if enabled
     if auto_save:
         save_chat_history(st.session_state.messages)
     
-    # Display user message
     with st.chat_message("user"):
         st.markdown(prompt)
     
-    # Get AI response
     with st.chat_message("assistant"):
         placeholder = st.empty()
         
@@ -408,7 +556,6 @@ if prompt := st.chat_input("Chat Smarter. Chat many Brains"):
                 full_response = response
                 placeholder.markdown(full_response + "▌")
             
-            # Remove cursor and show final response
             placeholder.markdown(full_response)
             
         except Exception as e:
@@ -416,14 +563,15 @@ if prompt := st.chat_input("Chat Smarter. Chat many Brains"):
             placeholder.markdown(error_msg)
             full_response = error_msg
     
-    # Add AI response to messages with attribution
     full_response_with_attribution = full_response + f"\n\n---\n*Response created by: **{model_names[selected_index]}***"
     assistant_message = {"role": "assistant", "content": full_response_with_attribution}
     st.session_state.messages.append(assistant_message)
     
-    # Auto-save if enabled
     if auto_save:
         save_chat_history(st.session_state.messages)
 
-# Show currently using model
-st.caption(f"Currently using: **{model_names[selected_index]}**")
+# Mobile-friendly footer
+col1, col2, col3 = st.columns([1, 2, 1])
+with col2:
+    st.caption(f"Currently using: **{model_names[selected_index]}**")
+    st.caption("📱 Optimized for all mobile devices")