api: Add routes to fetch zoom and bigBlueButton call url

Author: MritunjayTiwari14

lib/api/model/model.dart

@@ -76,6 +76,24 @@ class RealmAvailableVideoChatProviders {
   Map<String, dynamic> toJson() => _$RealmAvailableVideoChatProvidersToJson(this);
 }
 
+@JsonSerializable(fieldRename: FieldRename.snake)
+class VideoCallResponse {
+  final String msg;
+  final String result;
+  final String url;
+
+  VideoCallResponse({
+    required this.msg,
+    required this.result,
+    required this.url,
+  });
+
+  factory VideoCallResponse.fromJson(Map<String, dynamic> json)  =>
+      _$VideoCallResponseFromJson(json);
+
+  Map<String, dynamic> toJson() => _$VideoCallResponseToJson(this);
+}
+
 /// As in [InitialSnapshot.customProfileFields].
 ///
 /// For docs, search for "custom_profile_fields:"

lib/api/model/model.g.dart

@@ -0,0 +1,23 @@
+import '../core.dart';
+import '../model/model.dart';
+
+/// Creates a Zoom video/audio call
+///
+/// POST /api/v1/calls/zoom/create
+Future<VideoCallResponse> createZoomCall(ApiConnection connection, {
+  required bool isVideoCall,
+}) async {
+  return connection.post('createZoomCall', VideoCallResponse.fromJson,
+    '/calls/zoom/create', {'is_video_call': isVideoCall});
+}
+
+/// Creates a BigBlueButton meeting
+///
+/// GET /api/v1/calls/bigbluebutton/create
+Future<VideoCallResponse> createBigBlueButtonCall(ApiConnection connection, {
+  required String meetingName,
+  required bool voiceOnly,
+}) async {
+  return connection.get('createBigBlueButtonCall', VideoCallResponse.fromJson,
+  '/calls/bigbluebutton/create', {'meeting_name': meetingName, 'voice_only': voiceOnly});
+}