Create app.py

app.py

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+import gradio as gr
+import random
+import string
+from collections import defaultdict
+
+# Store all conversations and users
+conversations = defaultdict(list)
+usernames = {}
+
+# Generate a random conversation ID
+def generate_conversation_id():
+    return ''.join(random.choices(string.ascii_letters + string.digits, k=8))
+
+# Handle new chat creation
+def new_chat():
+    conversation_id = generate_conversation_id()
+    return f"New conversation created. Share this URL to join: /?chat={conversation_id}"
+
+# Handle user joining the conversation
+def join_chat(chat_id, username):
+    if chat_id not in usernames:
+        usernames[chat_id] = []
+    if username not in usernames[chat_id]:
+        usernames[chat_id].append(username)
+    return f"Welcome {username}! You have joined the chat."
+
+# Handle sending and receiving messages
+def chat_interface(chat_id, username, message):
+    if chat_id not in conversations:
+        return "Invalid chat ID. Please start a new chat."
+    if username not in usernames.get(chat_id, []):
+        return "You need to join the chat first by providing your username."
+    
+    # Store the message
+    conversations[chat_id].append((username, message))
+    
+    # Display all messages
+    all_messages = "\n".join([f"{user}: {msg}" for user, msg in conversations[chat_id]])
+    return all_messages
+
+# Gradio app
+def main():
+    with gr.Blocks() as demo:
+        gr.Markdown("# Chat Application\nClick 'New Chat' to start a new conversation or join an existing one.")
+        new_chat_button = gr.Button("New Chat")
+        new_chat_output = gr.Textbox(label="New Chat URL")
+        
+        new_chat_button.click(fn=new_chat, outputs=new_chat_output)
+        
+        with gr.Row():
+            chat_id = gr.Textbox(label="Chat ID", placeholder="Enter Chat ID to join or create a new one.")
+            username = gr.Textbox(label="Username", placeholder="Enter your username.")
+            join_button = gr.Button("Join Chat")
+            join_output = gr.Textbox(label="Join Status")
+            
+            join_button.click(fn=join_chat, inputs=[chat_id, username], outputs=join_output)
+        
+        message = gr.Textbox(label="Your Message", placeholder="Type your message here.")
+        send_button = gr.Button("Send Message")
+        chat_output = gr.Textbox(label="Chat Messages")
+        
+        send_button.click(fn=chat_interface, inputs=[chat_id, username, message], outputs=chat_output)
+
+    demo.launch()
+
+if __name__ == "__main__":
+    main()