Update app.py

app.py

@@ -626,92 +626,6 @@ def get_backend_health() -> str:
 # ============================================================================
 # GRADIO INTERFACE
 # ============================================================================
-
-with gr.Blocks(title="ZeroEngine-Backend") as demo:
-    # Apply theme after Blocks creation for Gradio 6.5.0 compatibility
-    if hasattr(demo, 'theme'):
-        demo.theme = gr.themes.Monochrome()
-    gr.HTML("""
-        <div style='text-align: center; padding: 20px;'>
-            <h1>🔧 ZeroEngine-Backend</h1>
-            <p style='color: #888;'>Background Processing Service for ZeroEngine</p>
-        </div>
-    """)
-    
-    with gr.Tab("🔢 Tokenize"):
-        gr.Markdown("### Fast Tokenization Pre-Processing")
-        with gr.Row():
-            with gr.Column():
-                tokenize_input = gr.Textbox(
-                    label="Text to Tokenize",
-                    placeholder="Enter text here...",
-                    lines=5
-                )
-                tokenize_btn = gr.Button("Tokenize", variant="primary")
-            with gr.Column():
-                tokenize_output = gr.Code(label="Result (JSON)", language="json")
-        
-        tokenize_btn.click(tokenize_text, [tokenize_input], [tokenize_output])
-    
-    with gr.Tab("💾 Prompt Cache"):
-        gr.Markdown("### Store and Retrieve Prompts")
-        with gr.Row():
-            with gr.Column():
-                cache_key_input = gr.Textbox(label="Cache Key")
-                cache_value_input = gr.Textbox(label="Value to Cache", lines=3)
-                cache_store_btn = gr.Button("Store", variant="primary")
-                cache_store_output = gr.Code(label="Result", language="json")
-            
-            with gr.Column():
-                cache_get_input = gr.Textbox(label="Key to Retrieve")
-                cache_get_btn = gr.Button("Retrieve", variant="secondary")
-                cache_get_output = gr.Code(label="Result", language="json")
-        
-        cache_store_btn.click(cache_prompt, [cache_key_input, cache_value_input], [cache_store_output])
-        cache_get_btn.click(get_cached_prompt, [cache_get_input], [cache_get_output])
-    
-    with gr.Tab("⚡ Response Cache"):
-        gr.Markdown("### Cache Complete Responses")
-        with gr.Row():
-            with gr.Column():
-                resp_hash_input = gr.Textbox(label="Prompt Hash")
-                resp_value_input = gr.Textbox(label="Response to Cache", lines=5)
-                resp_cache_btn = gr.Button("Cache Response", variant="primary")
-                resp_cache_output = gr.Code(label="Result", language="json")
-            
-            with gr.Column():
-                resp_get_input = gr.Textbox(label="Hash to Retrieve")
-                resp_get_btn = gr.Button("Get Response", variant="secondary")
-                resp_get_output = gr.Code(label="Result", language="json")
-        
-        resp_cache_btn.click(cache_response, [resp_hash_input, resp_value_input], [resp_cache_output])
-        resp_get_btn.click(get_cached_response, [resp_get_input], [resp_get_output])
-    
-    with gr.Tab("💰 Token Accounting"):
-        gr.Markdown("### Calculate Token Costs")
-        with gr.Row():
-            username_input = gr.Textbox(label="Username", value="turtle170")
-            duration_input = gr.Number(label="Duration (ms)", value=5000)
-        
-        calc_btn = gr.Button("Calculate Cost", variant="primary")
-        calc_output = gr.Code(label="Result (JSON)", language="json")
-        
-        calc_btn.click(calculate_token_cost, [username_input, duration_input], [calc_output])
-    
-    with gr.Tab("📊 Stats"):
-        gr.Markdown("### Cache Statistics")
-        stats_btn = gr.Button("Get Stats", variant="primary")
-        stats_output = gr.Code(label="Statistics (JSON)", language="json")
-        
-        stats_btn.click(get_cache_stats, None, [stats_output])
-    
-    with gr.Tab("🏥 Health"):
-        gr.Markdown("### Backend Health Status")
-        health_btn = gr.Button("Check Health", variant="primary")
-        health_output = gr.Code(label="Health Status (JSON)", language="json")
-        
-        health_btn.click(get_backend_health, None, [health_output])
-
 if __name__ == "__main__":
     import atexit
     import signal
@@ -754,4 +668,124 @@ if __name__ == "__main__":
     logger.info(f"[INIT] Server will launch on port 7861")
     logger.info(f"[INIT] ===== BACKEND APPLICATION STARTUP END =====")
     
-    demo.launch(server_name="0.0.0.0", server_port=7861, ssr_mode=False)
+    logger.info("[INIT] Creating Gradio interface...")
+    try:
+        with gr.Blocks(title="ZeroEngine-Backend") as demo:
+            logger.info("[INIT] Gradio Blocks created successfully")
+            # Apply theme after Blocks creation for Gradio 6.5.0 compatibility
+            if hasattr(demo, 'theme'):
+                logger.info("[INIT] Applying theme...")
+                demo.theme = gr.themes.Monochrome()
+                logger.info("[INIT] Theme applied successfully")
+            else:
+                logger.warning("[INIT] Theme attribute not found, skipping theme application")
+                
+            logger.info("[INIT] Creating HTML header...")
+            gr.HTML("""
+                <div style='text-align: center; padding: 20px;'>
+                    <h1>🔧 ZeroEngine-Backend</h1>
+                    <p style='color: #888;'>Background Processing Service for ZeroEngine</p>
+                </div>
+            """)
+            logger.info("[INIT] HTML header created")
+            
+            logger.info("[INIT] Creating tabs...")
+            with gr.Tab("🔢 Tokenize"):
+                logger.info("[INIT] Tokenize tab created")
+                gr.Markdown("### Fast Tokenization Pre-Processing")
+                with gr.Row():
+                    with gr.Column():
+                        tokenize_input = gr.Textbox(
+                            label="Text to Tokenize",
+                            placeholder="Enter text here...",
+                            lines=5
+                        )
+                        tokenize_btn = gr.Button("Tokenize", variant="primary")
+                    with gr.Column():
+                        tokenize_output = gr.Code(label="Result (JSON)", language="json")
+                
+                tokenize_btn.click(tokenize_text, [tokenize_input], [tokenize_output])
+                logger.info("[INIT] Tokenize tab components configured")
+            
+            with gr.Tab("💾 Prompt Cache"):
+                logger.info("[INIT] Prompt Cache tab created")
+                gr.Markdown("### Store and Retrieve Prompts")
+                with gr.Row():
+                    with gr.Column():
+                        cache_key_input = gr.Textbox(label="Cache Key")
+                        cache_value_input = gr.Textbox(label="Value to Cache", lines=3)
+                        cache_store_btn = gr.Button("Store", variant="primary")
+                        cache_store_output = gr.Code(label="Result", language="json")
+                    
+                    with gr.Column():
+                        cache_get_input = gr.Textbox(label="Key to Retrieve")
+                        cache_get_btn = gr.Button("Retrieve", variant="secondary")
+                        cache_get_output = gr.Code(label="Result", language="json")
+                
+                cache_store_btn.click(cache_prompt, [cache_key_input, cache_value_input], [cache_store_output])
+                cache_get_btn.click(get_cached_prompt, [cache_get_input], [cache_get_output])
+                logger.info("[INIT] Prompt Cache tab components configured")
+            
+            with gr.Tab("⚡ Response Cache"):
+                logger.info("[INIT] Response Cache tab created")
+                gr.Markdown("### Cache Complete Responses")
+                with gr.Row():
+                    with gr.Column():
+                        resp_hash_input = gr.Textbox(label="Prompt Hash")
+                        resp_value_input = gr.Textbox(label="Response to Cache", lines=5)
+                        resp_cache_btn = gr.Button("Cache Response", variant="primary")
+                        resp_cache_output = gr.Code(label="Result", language="json")
+                    
+                    with gr.Column():
+                        resp_get_input = gr.Textbox(label="Hash to Retrieve")
+                        resp_get_btn = gr.Button("Get Response", variant="secondary")
+                        resp_get_output = gr.Code(label="Result", language="json")
+                
+                resp_cache_btn.click(cache_response, [resp_hash_input, resp_value_input], [resp_cache_output])
+                resp_get_btn.click(get_cached_response, [resp_get_input], [resp_get_output])
+                logger.info("[INIT] Response Cache tab components configured")
+            
+            with gr.Tab("💰 Token Accounting"):
+                logger.info("[INIT] Token Accounting tab created")
+                gr.Markdown("### Calculate Token Costs")
+                with gr.Row():
+                    username_input = gr.Textbox(label="Username", value="turtle170")
+                    duration_input = gr.Number(label="Duration (ms)", value=5000)
+                
+                calc_btn = gr.Button("Calculate Cost", variant="primary")
+                calc_output = gr.Code(label="Result (JSON)", language="json")
+                
+                calc_btn.click(calculate_token_cost, [username_input, duration_input], [calc_output])
+                logger.info("[INIT] Token Accounting tab components configured")
+            
+            with gr.Tab("📊 Stats"):
+                logger.info("[INIT] Stats tab created")
+                gr.Markdown("### Cache Statistics")
+                stats_btn = gr.Button("Get Stats", variant="primary")
+                stats_output = gr.Code(label="Statistics (JSON)", language="json")
+                
+                stats_btn.click(get_cache_stats, None, [stats_output])
+                logger.info("[INIT] Stats tab components configured")
+            
+            with gr.Tab("🏥 Health"):
+                logger.info("[INIT] Health tab created")
+                gr.Markdown("### Backend Health Status")
+                health_btn = gr.Button("Check Health", variant="primary")
+                health_output = gr.Code(label="Health Status (JSON)", language="json")
+                
+                health_btn.click(get_backend_health, None, [health_output])
+                logger.info("[INIT] Health tab components configured")
+            
+            logger.info("[INIT] All tabs created successfully")
+        
+        logger.info("[INIT] Launching Gradio demo...")
+        demo.launch(server_name="0.0.0.0", server_port=7861, ssr_mode=False)
+        logger.info("[INIT] Gradio demo launched successfully")
+        
+    except Exception as e:
+        logger.error(f"[INIT] Failed to create Gradio interface: {e}")
+        logger.error(f"[INIT] Error type: {type(e).__name__}")
+        logger.error(f"[INIT] Error details: {str(e)}")
+        import traceback
+        logger.error(f"[INIT] Traceback: {traceback.format_exc()}")
+        raise