add datepicker

app.py

@@ -5,6 +5,12 @@ import leafmap.foliumap as leafmap
 
 st.set_page_config(layout="wide")
 
+def random_color(feature):
+    return {
+        'color': 'black',
+        'fillColor': random.choice(['red', 'yellow', 'green', 'orange']),
+    }
+
 url = 'https://open.gishub.org/maxar-open-data'
 repo = 'https://github.com/opengeos/maxar-open-data/blob/master/datasets'
 
@@ -22,15 +28,29 @@ def get_datasets():
 
 
 @st.cache_data
-def get_catalogs(name):
+def get_catalogs(name, date_selected):
     dataset = f'{url}/datasets/{name}.tsv'
 
     dataset_df = pd.read_csv(dataset, sep='\t')
-    catalog_ids = dataset_df['catalog_id'].unique().tolist()
+    
+    dataset_df['as_datetime'] = dataset_df['datetime'].apply(pd.to_datetime)
+    dataset_df['as_date'] = dataset_df['datetime'].apply(pd.to_datetime).apply(pd.Timestamp.date)
+    filtered_to_date = dataset_df.loc[(dataset_df['as_date'] == date_selected), 'catalog_id' ]
+    catalog_ids = filtered_to_date.unique().tolist()
     return catalog_ids
 
+@st.cache_data
+def get_catalogs_dates(name):
+    dataset = f'{url}/datasets/{name}.tsv'
+
+    dataset_df = pd.read_csv(dataset, sep='\t')
+    catalog_dates_as_datetime = pd.to_datetime(dataset_df['datetime']).sort_values(ascending=False)
+    catalog_dates_ids = catalog_dates_as_datetime.map(pd.Timestamp.date).unique().tolist()
+    return catalog_dates_ids
+
 
 st.title('Visualizing Maxar Open Data')
+# st.markdown(get_catalogs('Morocco-Earthquake-Sept-2023', '2023-09-11'))
 
 col1, col2 = st.columns([1.2, 3.8])
 
@@ -38,7 +58,9 @@ with col1:
     default = 'Morocco-Earthquake-Sept-2023'
     datasets = get_datasets()['dataset'].tolist()
     dataset = st.selectbox('Select a dataset', datasets, index=datasets.index(default))
-    catalog = st.selectbox('Select a COG mosaic', get_catalogs(dataset), index=get_catalogs(dataset).index('10300500E4F91900'))
+    datepicker = st.selectbox('Select Date', get_catalogs_dates(dataset))
+    # st.markdown(get_catalogs(dataset, datepicker))
+    catalog = st.selectbox('Select a COG mosaic', get_catalogs(dataset, datepicker), index=get_catalogs(dataset, datepicker).index(get_catalogs(dataset, datepicker)[0]))
     geojson = f'{url}/datasets/{dataset}.geojson'
     mosaic = f'{url}/datasets/{dataset}/{catalog}.json'
     tsv = f'{repo}/{dataset}/{catalog}.tsv'
@@ -61,7 +83,9 @@ m
         'weight': 1,
         'fillOpacity': 0
     }
-    m.add_geojson(geojson, layer_name=dataset, style=style, info_mode='on_click')
+    
+    callback = lambda feat: print(feat["properties"]["datetime"])
+    m.add_geojson(geojson, layer_name=dataset, style=style, info_mode='on_click', style_callback=random_color)
     m.add_stac_layer(mosaic, name=catalog)
 
     st.info('About')