Add a evaluation file viewer tab using dropdown and textbox

app.py

@@ -1,4 +1,5 @@
 import gradio as gr
+import os
 from train_abuse_model import (
     run_training,
     evaluate_saved_model,
@@ -34,17 +35,29 @@ with gr.Blocks() as demo:
             inputs=[desc_input, chat_upload],
             outputs=[enriched_output, label_output]
         )
-    with gr.Tab("📊 Evaluation Viewer"):
-        file_selector = gr.File(label="Select a report file")
-        preview_box = gr.Textbox(label="📄 File Preview", lines=20)
 
-    def load_eval_file(file_obj):
-        if file_obj is None:
-            return "No file selected."
-        with open(file_obj.name, encoding="utf-8") as f:
-            return f.read()
 
-    file_selector.change(load_eval_file, inputs=file_selector, outputs=preview_box)
+    with gr.Tab("📊 View Evaluation Reports"):
+        def list_eval_files():
+            folder = "/home/user/app/results_eval"
+            return sorted(os.listdir(folder), reverse=True)
+
+        def load_eval_file(filename):
+            path = f"/home/user/app/results_eval/{filename}"
+            if not os.path.exists(path):
+                return "❌ File not found."
+            with open(path, "r", encoding="utf-8") as f:
+                return f.read()
+
+        file_dropdown = gr.Dropdown(
+            choices=list_eval_files(),
+            label="📁 Select an evaluation file",
+            interactive=True
+        )
+        report_output = gr.Textbox(label="📄 Evaluation Report", lines=20)
+
+        file_dropdown.change(fn=load_eval_file, inputs=file_dropdown, outputs=report_output)
+
 
 
 if __name__ == "__main__":