auto clear input

app.py

@@ -117,6 +117,11 @@ def main():
             background-color: #262730 !important;
             border: 1px solid #4a4a4a !important;
         }
+
+        /* Hide the form submit button */
+        .stButton {
+            display: none;
+        }
         </style>
         """, unsafe_allow_html=True)
 
@@ -127,6 +132,10 @@ def main():
         st.session_state.tracker = TrackingLookup()
     if 'file_processed' not in st.session_state:
         st.session_state.file_processed = False
+    if 'last_result' not in st.session_state:
+        st.session_state.last_result = None
+    if 'form_count' not in st.session_state:
+        st.session_state.form_count = 0
 
     # File upload section
     if not st.session_state.file_processed:
@@ -143,8 +152,9 @@ def main():
         # Centered input with columns
         col1, col2, col3 = st.columns([1, 2, 1])
         with col2:
-            # Create a form to handle the Enter key properly
-            with st.form(key='tracking_form'):
+            # Create a unique key for each form instance
+            form_key = f'tracking_form_{st.session_state.form_count}'
+            with st.form(key=form_key):
                 tracking_input = st.text_input(
                     "Tracking Number",
                     label_visibility="collapsed",
@@ -152,22 +162,39 @@ def main():
                 )
                 submit_button = st.form_submit_button(label='Search', type='primary')
             
-            # Process the form submission
-            if submit_button or tracking_input:  # This will catch both button clicks and Enter key
+            if submit_button and tracking_input:
                 mailbag_no, sequence_no = st.session_state.tracker.lookup_tracking(tracking_input)
                 
                 if mailbag_no:
+                    st.session_state.last_result = {
+                        "mailbag_no": mailbag_no,
+                        "sequence_no": sequence_no,
+                        "found": True
+                    }
+                else:
+                    st.session_state.last_result = {
+                        "found": False,
+                        "tracking": tracking_input
+                    }
+                
+                # Increment form count to create a new form instance
+                st.session_state.form_count += 1
+                st.rerun()
+                
+            # Display results if they exist
+            if st.session_state.last_result:
+                if st.session_state.last_result["found"]:
                     st.markdown(
                         f"""<div class="result-box">
                             <p><strong>Mail Bag No:</strong></p>
-                            <p>{mailbag_no}</p>
+                            <p>{st.session_state.last_result["mailbag_no"]}</p>
                             <p><strong>Sequence #:</strong></p>
-                            <p>{sequence_no}</p>
+                            <p>{st.session_state.last_result["sequence_no"]}</p>
                         </div>""",
                         unsafe_allow_html=True
                     )
                 else:
-                    st.warning("❌ Tracking number not found in the uploaded data")
+                    st.warning(f"❌ Tracking number not found in the uploaded data")
 
 if __name__ == "__main__":
     main()