feat: Improve equality comparison for LocationCoordinate with near-equal precision

Author: xsahil03x

packages/stream_core/lib/src/query/filter/location/location_coordinate.dart

@@ -37,10 +37,13 @@ class LocationCoordinate {
   @override
   bool operator ==(Object other) {
     if (identical(this, other)) return true;
-    return other is LocationCoordinate &&
-        runtimeType == other.runtimeType &&
-        latitude == other.latitude &&
-        longitude == other.longitude;
+    if (other is! LocationCoordinate) return false;
+
+    const epsilon = 1e-7; // ~1cm precision
+    final absLatDiff = (latitude - other.latitude).abs();
+    final absLngDiff = (longitude - other.longitude).abs();
+
+    return absLatDiff < epsilon && absLngDiff < epsilon;
   }
 
   @override
@@ -59,10 +62,8 @@ class LocationCoordinate {
   /// print('Distance: ${distance.inKilometers} km'); // ~343.56 km
   /// ```
   Distance distanceTo(LocationCoordinate other) {
-    // If the coordinates are identical, the distance is zero.
-    if (latitude == other.latitude && longitude == other.longitude) {
-      return 0.meters;
-    }
+    // If the coordinates are equal, the distance is zero.
+    if (this == other) return 0.meters;
 
     const earthRadius = 6378137.0;
 

packages/stream_core/test/query/location_test.dart

@@ -49,6 +49,28 @@ void main() {
       expect(location1, isNot(equals(location3)));
       expect(location1.hashCode, equals(location2.hashCode));
     });
+
+    test('should consider near-equal coordinates as equal', () {
+      const location1 = LocationCoordinate(
+        latitude: 37.7749,
+        longitude: -122.4194,
+      );
+
+      // Coordinates differ by less than epsilon (~1cm)
+      const location2 = LocationCoordinate(
+        latitude: 37.77490000001,
+        longitude: -122.41940000001,
+      );
+
+      // Coordinates differ by more than epsilon
+      const location3 = LocationCoordinate(
+        latitude: 37.7749001,
+        longitude: -122.4194001,
+      );
+
+      expect(location1, equals(location2));
+      expect(location1, isNot(equals(location3)));
+    });
   });
 
   group('Distance', () {