Update app.py

app.py

@@ -107,7 +107,6 @@ with gr.Blocks(theme=simple_theme, title=APP_TITLE) as interface:
             hcc_code = gr.Textbox(label="HCC Code (e.g., 12)", placeholder="Enter HCC code")
             model_version = gr.Dropdown(choices=["V24", "V28"], label="Model Version", value="V24")
             run_btn = gr.Button("🚀 Run Validation", variant="primary")
-            sample_btn = gr.Button("📄 Use Sample PDF", variant="secondary")
 
         with gr.Column(scale=2):
             output_md = gr.Markdown(
@@ -115,32 +114,28 @@ with gr.Blocks(theme=simple_theme, title=APP_TITLE) as interface:
                 value="<div style='border:2px solid #1e40af; border-radius:12px; padding:15px; background-color:#f0f9ff;'>📄 Upload a PDF and click <b>Run Validation</b> to start.</div>",
             )
 
-    # ---------- Button Events ----------
-    # Corrected sample PDF loading
-    def load_sample():
-        if not os.path.exists(SAMPLE_PDF):
-            raise FileNotFoundError(f"Sample PDF not found at {SAMPLE_PDF}")
-        return (SAMPLE_PDF, os.path.basename(SAMPLE_PDF))  # (file_path, file_name)
-
-    sample_btn.click(
-        fn=load_sample,
-        inputs=[],
-        outputs=[pdf_upload],
-    )
-
+    # ---------- Run validation ----------
     run_btn.click(
         fn=process_pipeline,
         inputs=[pdf_upload, hcc_code, model_version],
         outputs=[output_md],
     )
 
+    # ---------- Sample PDF using Gradio Examples ----------
+    gr.Examples(
+        examples=[[SAMPLE_PDF]],
+        inputs=[pdf_upload],
+        outputs=[output_md],
+        fn=process_pipeline,
+        cache_examples=True
+    )
+
 
 if __name__ == "__main__":
     interface.queue().launch(server_name="0.0.0.0", server_port=int(os.environ.get("PORT", 7860)))
 
 
 
-
 # import os
 # import gradio as gr
 # import json