Added functionality to create chat

lib/api/marianumcloud/talk/createRoom/createRoom.dart

@@ -0,0 +1,24 @@
+
+import 'package:http/http.dart' as http;
+import 'package:http/http.dart';
+
+import '../talkApi.dart';
+import 'createRoomParams.dart';
+class CreateRoom extends TalkApi<void> {
+  CreateRoomParams params;
+
+  CreateRoom(this.params) : super("v4/room", params);
+
+  @override
+  assemble(String raw) {
+  }
+
+  @override
+  Future<Response>? request(Uri uri, Object? body, Map<String, String>? headers) {
+    if(body is CreateRoomParams) {
+      return http.post(uri, headers: headers, body: body.toJson().map((key, value) => MapEntry(key, value.toString())));
+    }
+
+    return null;
+  }
+}

lib/api/marianumcloud/talk/createRoom/createRoomParams.dart

@@ -0,0 +1,27 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../apiParams.dart';
+
+part 'createRoomParams.g.dart';
+
+@JsonSerializable()
+class CreateRoomParams extends ApiParams {
+  int roomType;
+  String invite;
+  String? source;
+  String? roomName;
+  String? objectType;
+  String? objectId;
+
+  CreateRoomParams({
+    required this.roomType,
+    required this.invite,
+    this.source,
+    this.roomName,
+    this.objectType,
+    this.objectId
+  });
+
+  factory CreateRoomParams.fromJson(Map<String, dynamic> json) => _$CreateRoomParamsFromJson(json);
+  Map<String, dynamic> toJson() => _$CreateRoomParamsToJson(this);
+}

lib/api/marianumcloud/talk/createRoom/createRoomParams.g.dart

@@ -0,0 +1,27 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'createRoomParams.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+CreateRoomParams _$CreateRoomParamsFromJson(Map<String, dynamic> json) =>
+    CreateRoomParams(
+      roomType: json['roomType'] as int,
+      invite: json['invite'] as String,
+      source: json['source'] as String?,
+      roomName: json['roomName'] as String?,
+      objectType: json['objectType'] as String?,
+      objectId: json['objectId'] as String?,
+    );
+
+Map<String, dynamic> _$CreateRoomParamsToJson(CreateRoomParams instance) =>
+    <String, dynamic>{
+      'roomType': instance.roomType,
+      'invite': instance.invite,
+      'source': instance.source,
+      'roomName': instance.roomName,
+      'objectType': instance.objectType,
+      'objectId': instance.objectId,
+    };

lib/view/pages/talk/chatList.dart

@@ -1,8 +1,11 @@
 
 import 'dart:async';
 import 'package:flutter/material.dart';
+import 'package:marianum_mobile/api/marianumcloud/talk/createRoom/createRoomParams.dart';
+import 'package:marianum_mobile/widget/confirmDialog.dart';
 import 'package:provider/provider.dart';
 
+import '../../../api/marianumcloud/talk/createRoom/createRoom.dart';
 import '../../../model/chatList/chatListProps.dart';
 import '../../../storage/base/settingsProvider.dart';
 import 'chatTile.dart';
@@ -51,8 +54,24 @@ class _ChatListState extends State<ChatList> {
       floatingActionButton: FloatingActionButton(
         heroTag: "createChat",
         backgroundColor: Theme.of(context).primaryColor,
-        onPressed: () {
-          showSearch(context: context, delegate: JoinChat());
+        onPressed: () async {
+          showSearch(context: context, delegate: JoinChat()).then((username) {
+            if(username == null) return;
+            
+            ConfirmDialog(
+              title: "Chat starten",
+              content: "Möchtest du einen Chat mit nutzer '$username' starten?",
+              confirmButton: "Chat starten",
+              onConfirm: () {
+                CreateRoom(CreateRoomParams(
+                  roomType: 1,
+                  invite: username,
+                )).run().then((value) {
+                  _query(renew: true);
+                });
+              },
+            ).asDialog(context);
+          });
         },
         child: const Icon(Icons.add_comment_outlined),
       ),