feat: Improve cross-platform directory browsing for Windows and Linux

src/streamlit_app.py

@@ -187,15 +187,27 @@ with col1:
                           key='source_dir_input',
                           help="Enter the full path to the directory containing files to process")
 
-        if st.button("Browse Source Directory", key='source_browse'):
-            try:
-                path = select_directory_with_dialog("Select Source Directory")
-                if path:
-                    st.session_state['source_dir'] = path
-                    st.session_state['source_dir_input'] = path
-                    st.experimental_rerun()
-            except Exception as e:
-                st.error(f"Error selecting directory: {str(e)}")
+        col_src1, col_src2 = st.columns([1, 4])
+        with col_src1:
+            if st.button("Browse", key='source_browse'):
+                st.info("""
+                To browse for a directory:
+                1. Open Windows File Explorer
+                2. Navigate to your desired folder
+                3. Click in the address bar (or press Alt+D)
+                4. Copy the full path (Ctrl+C)
+                5. Paste it here (Ctrl+V)
+                """)
+
+        # Add a check and display for source directory status
+        if source_dir:
+            # Convert Windows path to Linux path if needed
+            source_dir = source_dir.replace('\\', '/')
+            if os.path.exists(source_dir):
+                st.success(f"✅ Source directory exists: {source_dir}")
+            else:
+                st.error(f"❌ Source directory not found: {source_dir}")
+                st.info("Make sure the path is accessible to the Linux server")
 
         # Destination Directory        
         dest_dir = st.text_input("Destination Directory Path",
@@ -203,15 +215,31 @@ with col1:
                         key='dest_dir_input',
                         help="Enter the full path where processed files will be saved")
 
-        if st.button("Browse Destination Directory", key='dest_browse'):
-            try:
-                path = select_directory_with_dialog("Select Destination Directory")
-                if path:
-                    st.session_state['dest_dir'] = path
-                    st.session_state['dest_dir_input'] = path
-                    st.experimental_rerun()
-            except Exception as e:
-                st.error(f"Error selecting directory: {str(e)}")
+        col_dest1, col_dest2 = st.columns([1, 4])
+        with col_dest1:
+            if st.button("Browse", key='dest_browse'):
+                st.info("""
+                To browse for a directory:
+                1. Open Windows File Explorer
+                2. Navigate to your desired folder
+                3. Click in the address bar (or press Alt+D)
+                4. Copy the full path (Ctrl+C)
+                5. Paste it here (Ctrl+V)
+                """)
+
+        # Add a check and display for destination directory status
+        if dest_dir:
+            # Convert Windows path to Linux path if needed
+            dest_dir = dest_dir.replace('\\', '/')
+            dest_parent = os.path.dirname(dest_dir)
+            if os.path.exists(dest_parent):
+                if os.path.exists(dest_dir):
+                    st.success(f"✅ Destination directory exists: {dest_dir}")
+                else:
+                    st.info(f"i️ Destination directory will be created: {dest_dir}")
+            else:
+                st.error(f"❌ Parent directory not found: {dest_parent}")
+                st.info("Make sure the path is accessible to the Linux server")
 
 with col2:
     if file_type == "Excel":