added filter options to single matching tab

similarity_page.py

@@ -149,7 +149,7 @@ def show_multi_matching_page():
 
     col1, col2, col3 = st.columns([10, 1, 10])
     with col1:
-        st.subheader("Sector Filter (required)")
+        st.subheader("Sector Filters (required)")
         st.caption("""
                     Sector filters must be applied to see results. The CRS5 and CRS3 classifications organise development aid into categories, 
                     with the 5-digit level providing more specific detail within the broader 3-digit categories. 
@@ -273,27 +273,63 @@ def show_multi_matching_page():
 
 def show_single_matching_page():
 
-    search_option = st.selectbox(
-                label = 'Select how you want to search',
-                index = 0,
-                placeholder = " ",
-                options = ["Search with IATI ID", "Search with project title"],
-                )
+    col1, col2, col3 = st.columns([1, 1, 1])
+    with col1:
+        st.subheader("Select a reference project")
+        st.caption("""
+                    ...
+                    """)
+    with col2:
+        st.subheader("Filters for similar projects")
+        st.caption("""
+                    The filters are applied to find the similar projects and are independend of the selected reference project.
+                """)
+
+    col1, col2, col3 = st.columns([1, 1, 1])
+    with col1:
+
+        search_option = st.selectbox(
+                    label = 'Search with project title or IATI ID',
+                    index = 0,
+                    placeholder = " ",
+                    options = ["Search with IATI ID", "Search with project title"],
+                    )
+        
+        if search_option == "Search with IATI ID":
+            search_list = iati_search_list
+        else:
+            search_list = title_search_list
+
+        project_option = st.selectbox(
+                    label = 'Search for a project',
+                    index = None,
+                    placeholder = " ",
+                    options = search_list,
+                    )
     
-    if search_option == "Search with IATI ID":
-        search_list = iati_search_list
-    else:
-        search_list = title_search_list
+    with col2:
+        # COUNTRY SELECTION
+        country_option = st.multiselect(
+                'Country / Countries',
+                COUNTRY_OPTION_LIST,
+                placeholder="All countries selected"
+                )
+            
+        # ORGA SELECTION
+        orga_abbreviation = projects_df["orga_abbreviation"].unique()
+        orga_full_names = projects_df["orga_full_name"].unique()
+        orga_list = [f"{orga_full_names[i]} ({orga_abbreviation[i].upper()})"for i in range(len(orga_abbreviation))]
 
-    project_option = st.selectbox(
-                label = 'Search for a project with the IATI ID or teh project title',
-                index = None,
-                placeholder = " ",
-                options = search_list,
+        orga_option = st.multiselect(
+                'Development Bank / Organization',
+                orga_list,
+                placeholder="All organizations selected"
                 )
-    
-    #different_orga_checkbox_ = st.checkbox("Only matches for organisations other than the selected project")
-    #filterd_country_only_checkbox_ = st.checkbox("Only matches in the same countries as project selection")
+        
+    with col3:
+        different_orga_checkbox = st.checkbox("Only matches between different organizations", value=True)
+        filterd_country_only_checkbox = st.checkbox("Only matches between filtered countries", value=True)
+
     
     #selected_index = None
     if project_option: