✨ Friend management

lib/providers/relationship.dart

@@ -0,0 +1,34 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:surface/providers/sn_network.dart';
+
+class SnRelationshipProvider {
+  late final SnNetworkProvider _sn;
+
+  SnRelationshipProvider(BuildContext context) {
+    _sn = context.read<SnNetworkProvider>();
+  }
+
+  Future<void> updateRelationship(
+    int relatedId,
+    int status,
+    Map<String, dynamic> permNodes,
+  ) async {
+    await _sn.client.put('/cgi/id/users/me/relations/$relatedId', data: {
+      'status': status,
+      'perm_nodes': permNodes,
+    });
+  }
+
+  Future<void> deleteRelationship(int relatedId) async {
+    await _sn.client.delete('/cgi/id/users/me/relations/$relatedId');
+  }
+
+  Future<void> acceptFriendRequest(int relatedId) async {
+    await _sn.client.post('/cgi/id/users/me/relations/$relatedId/accept');
+  }
+
+  Future<void> declineFriendRequest(int relatedId) async {
+    await _sn.client.post('/cgi/id/users/me/relations/$relatedId/decline');
+  }
+}