[P] Add bump remove function

MapView/main.py

@@ -14,11 +14,24 @@ line_layer_colors = [
     [1, 0, 1, 1],
 ]
 
+
+def get_lat_lon(point: dict[str, float] | list[float] | tuple[float, float]) -> tuple[float, float] | None:
+    if isinstance(point, dict):
+        lat = point.get("lat")
+        lon = point.get("lon")
+    else:
+        lat, lon = point
+
+    if lat is None or lon is None:
+        return None
+    return lat, lon
+
+
 class MapViewApp(App):
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
 
-        self.mapview = None
+        self.mapview: MapView | None = None
         self.datasource = Datasource(user_id=1)
         self.line_layers = dict()
         self.car_markers = dict()
@@ -110,24 +123,34 @@ class MapViewApp(App):
         self.pothole_markers.append(marker)
 
     def set_bump_marker(self, point):
-        if isinstance(point, dict):
+        lat, lon = get_lat_lon(point)
-            lat = point.get("lat")
-            lon = point.get("lon")
-        else:
-            lat, lon = point
-
         if lat is None or lon is None:
             return
-        
+
         marker = MapMarker(
             lat=lat,
             lon=lon,
-            source="images/bump.png"  
+            source="images/bump.png"
         )
 
         self.mapview.add_marker(marker)
         self.bump_markers.append(marker)
 
+    def delete_bump_marker(self, point):
+        lat, lon = get_lat_lon(point)
+        if lat is None or lon is None:
+            return
+
+        marker = MapMarker(
+            lat=lat,
+            lon=lon,
+            source="images/bump.png"
+        )
+
+        if marker in self.bump_markers:
+            self.mapview.remove_marker(marker)
+            self.bump_markers.pop(self.bump_markers.index(marker))
+
 
     def build(self):
         """