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app.py

@@ -214,13 +214,13 @@ def process_assessment_audio(audio, assessment_type, item_index):
     global current_item_index, assessment_results
     
     if audio is None:
-        return None, f"No audio detected. Please try again.", None, None
+        return None, f"No audio detected. Please try again.", item_index, None
     
     # Convert speech to text
     transcript = speech_to_text(audio)
     
     if not transcript:
-        return None, "I couldn't understand the speech. Please try again.", None, None
+        return None, "I couldn't understand the speech. Please try again.", item_index, None
     
     # Process based on assessment type
     if assessment_type == "articulation":
@@ -328,6 +328,39 @@ def init_language_assessment():
     
     return audio_response, message, None, 0
 
+def update_art_item_indicator(idx):
+    """Update articulation item indicator"""
+    return f"{idx+1}/{len(articulation_exercises['words'])}"
+
+def update_lang_item_indicator(idx):
+    """Update language item indicator"""
+    return f"{idx+1}/{len(language_exercises['tasks'])}"
+
+def navigate_articulation(direction, current_idx):
+    """Navigate through articulation items"""
+    if direction == "prev":
+        new_idx = max(0, current_idx - 1)
+    else:  # next
+        new_idx = min(len(articulation_exercises["words"]) - 1, current_idx + 1)
+    
+    current_word = articulation_exercises["words"][new_idx]
+    message = f"Current word: {current_word['word']}"
+    current_image = current_word["imageUrl"]
+    
+    return update_art_item_indicator(new_idx), message, current_image, new_idx
+
+def navigate_language(direction, current_idx):
+    """Navigate through language items"""
+    if direction == "prev":
+        new_idx = max(0, current_idx - 1)
+    else:  # next
+        new_idx = min(len(language_exercises["tasks"]) - 1, current_idx + 1)
+    
+    current_task = language_exercises["tasks"][new_idx]
+    message = f"Current task: {current_task['prompt']}"
+    
+    return update_lang_item_indicator(new_idx), message, new_idx
+
 def process_conversation_audio(audio):
     """Process recorded audio for conversation mode"""
     if audio is None:
@@ -433,7 +466,7 @@ button.secondary {
 
 # Create Gradio interface with tabs for different modes
 with gr.Blocks(title="CASL 2 - Speech Therapy Assessment", css=custom_css) as demo:
-    # Current state variables
+    # Current state variables (in Gradio 3.50.0, State doesn't have a change event)
     current_item_idx = gr.State(0)
     
     # App header
@@ -623,11 +656,17 @@ with gr.Blocks(title="CASL 2 - Speech Therapy Assessment", css=custom_css) as de
         outputs=[art_audio_output, art_result_display, current_item_idx, art_image]
     )
     
-    # Update indicator text when item changes
-    current_item_idx.change(
-        fn=lambda idx: f"{idx+1}/{len(articulation_exercises['words'])}",
-        inputs=[current_item_idx],
-        outputs=[art_item_indicator]
+    # Fixed navigation for Gradio 3.50.0
+    art_next_button.click(
+        fn=navigate_articulation,
+        inputs=[gr.Textbox(value="next", visible=False), current_item_idx],
+        outputs=[art_item_indicator, art_current_display, art_image, current_item_idx]
+    )
+    
+    art_prev_button.click(
+        fn=navigate_articulation,
+        inputs=[gr.Textbox(value="prev", visible=False), current_item_idx],
+        outputs=[art_item_indicator, art_current_display, art_image, current_item_idx]
     )
     
     # Connect components - Language Assessment
@@ -642,11 +681,17 @@ with gr.Blocks(title="CASL 2 - Speech Therapy Assessment", css=custom_css) as de
         outputs=[lang_audio_output, lang_result_display, current_item_idx, gr.Image(visible=False)]
     )
     
-    # Update language indicator text when item changes
-    current_item_idx.change(
-        fn=lambda idx: f"{idx+1}/{len(language_exercises['tasks'])}",
-        inputs=[current_item_idx],
-        outputs=[lang_item_indicator]
+    # Fixed navigation for language assessment
+    lang_next_button.click(
+        fn=navigate_language,
+        inputs=[gr.Textbox(value="next", visible=False), current_item_idx],
+        outputs=[lang_item_indicator, lang_current_display, current_item_idx]
+    )
+    
+    lang_prev_button.click(
+        fn=navigate_language,
+        inputs=[gr.Textbox(value="prev", visible=False), current_item_idx],
+        outputs=[lang_item_indicator, lang_current_display, current_item_idx]
     )
 
 # Launch the app