Update app.py

app.py

@@ -741,13 +741,6 @@ if "sites" not in st.session_state:
 if "active_site" not in st.session_state:
     st.session_state["active_site"] = 0
 
-# -------------------- MODEL PLACEHOLDER --------------------
-# Load soil recognizer model here (replace with your trained PyTorch model)
-# model = torch.load("soil_model.pth", map_location="cpu")
-# model.eval()
-
-# Placeholder soil classes
-soil_classes = ["Gravel", "Sand", "Silt", "Clay", "Loam"]
 
 # -------------------- LANDING PAGE --------------------
 def landing_page():
@@ -1359,51 +1352,79 @@ def locator_page():
     
     # ----------------------------
     from streamlit_folium import st_folium
+    import json
 
-    # ... (your earlier dataset loading / EE init code) ...
-    
-    # Render geemap map
+    # --- Render geemap map ---
     m.to_streamlit(height=600, responsive=True)
-    
-    # Overlay a folium draw capture using st_folium on same map (transparent)
-    # Note: we re-render using st_folium to capture geometry interactions.
-    # We get a “last_active_drawing” from the st_folium output.
-    
-    # Convert your geemap map to a folium map object for st_folium
-    fol_map = m.folium_map  # geemap.foliumap.Map wraps a base folium.Map
-    result = st_folium(fol_map, width=700, height=600, returned_objects=["last_active_drawing"])
-    
-    # Attempt to get ROI from drawn feature
+
+    # Capture drawn ROI
+    result = st_folium(m, width=700, height=600, returned_objects=["last_active_drawing"])
+
     roi = None
+    coords = None
+    flat_coords = None
+
+    # --- Get ROI from drawn feature ---
     if result and "last_active_drawing" in result and result["last_active_drawing"]:
         feat = result["last_active_drawing"]
         geom = feat.get("geometry")
         if geom:
             try:
                 roi = ee.Geometry(geom)
+                coords = geom.get("coordinates", None)
                 st.session_state["roi_geojson"] = feat
+
+                # Flatten coordinates
+                if coords:
+                    if geom["type"] in ["Polygon", "MultiPolygon"]:
+                        flat_coords = [(lat, lon) for ring in coords for lon, lat in ring]
+                    elif geom["type"] == "Point":
+                        lon, lat = coords
+                        flat_coords = [(lat, lon)]
+                    elif geom["type"] == "LineString":
+                        flat_coords = [(lat, lon) for lon, lat in coords]
+
+                if flat_coords:
+                    st.session_state["roi_coords"] = flat_coords  # ✅ Save for reuse
                 st.success("✅ ROI captured!")
             except Exception as e:
                 st.error(f"Failed to convert drawn geometry to ee.Geometry: {e}")
-    
-    # Restore from session if none drawn now
+
+    # --- Restore ROI from session if none drawn ---
     if roi is None and "roi_geojson" in st.session_state:
         saved = st.session_state["roi_geojson"]
         try:
             geom = saved.get("geometry")
             if geom:
                 roi = ee.Geometry(geom)
-                st.info("♻️ ROI restored from earlier session")
+                coords = geom.get("coordinates", None)
+                if coords:
+                    if geom["type"] in ["Polygon", "MultiPolygon"]:
+                        flat_coords = [(lat, lon) for ring in coords for lon, lat in ring]
+                    elif geom["type"] == "Point":
+                        lon, lat = coords
+                        flat_coords = [(lat, lon)]
+                    elif geom["type"] == "LineString":
+                        flat_coords = [(lat, lon) for lon, lat in coords]
+
+                if flat_coords:
+                    st.session_state["roi_coords"] = flat_coords  # ✅ Restore saved
+            st.info("♻️ ROI restored from earlier session")
         except Exception as e:
             st.warning(f"Could not restore ROI: {e}")
-    
-    # Then your “Compute Summaries” button logic:
+
+    # --- Show coordinates below the map ---
+    if "roi_coords" in st.session_state:
+        st.markdown("### 📍 ROI Coordinates (Lat, Lon)")
+        st.write(st.session_state["roi_coords"])
+
+    # --- Compute summaries ---
     if st.button("Compute Summaries"):
         if roi is None:
             st.error("⚠️ No ROI found. Please draw a polygon/rectangle/circle and try again.")
         else:
             st.success("ROI ready — performing computations...")
-
+        # Here you can now use st.session_state["roi_coords"] for summaries
         chosen_soil_band = None
         if soil_img:
             bands = soil_img.bandNames().getInfo()