Duplicate servername#96

.gitignore

@@ -1,4 +1,6 @@
 # https://dart.dev/guides/libraries/private-files
 # Created by `dart pub`
 .dart_tool/
-.env
+.env
+
+/app_logs.log

lib/prompt_chat.dart

@@ -40,12 +40,12 @@ class ChatAPI {
   // Register a user
   Future<void> registerUser(String? username, String? password) async {
     if (username == null || password == null) {
-
       throw InvalidCredentialsException();
     }
     if (!isPasswordValid(password)) {
-     print("Password must be atleast 8 characters long, having atleast a number & a special character. Please try again.");
-    throw WeakPasswordException();
+      print(
+          "Password must be atleast 8 characters long, having atleast a number & a special character. Please try again.");
+      throw WeakPasswordException();
     }
     validUsername(username);
     var newUser = User(username, password, false);
@@ -221,6 +221,9 @@ class ChatAPI {
       throw Exception(
           "Please enter the required credentials, or login to continue.");
     }
+    if (servers.any((element) => element.serverName == serverName)) {
+      throw Exception("Server with same name already exists!");
+    }
     JoinPerm joinPerm = getJoinPerm(serverPerm);
     var creator = getUser(userName);
     var newServer = createNewServer(serverName, joinPerm);
@@ -567,20 +570,18 @@ class ChatAPI {
     var reqServer = getServer(servername);
     var reqUser = getUser(username);
     reqServer.checkAccessLevels(username, [1, 2]);
-    var inviteCode = InviteCode(reqUser, "",reqServer);
-    for(var invitecode in reqServer.inviteCodes ){
-      if(invitecode.code == inviteCode.code){
+    var inviteCode = InviteCode(reqUser, "", reqServer);
+    for (var invitecode in reqServer.inviteCodes) {
+      if (invitecode.code == inviteCode.code) {
         return createInviteCode(servername, username);
-      }
-      else if (invitecode.inviter == reqUser){
+      } else if (invitecode.inviter == reqUser) {
         return invitecode.code;
       }
     }
     reqServer.inviteCodes.add(inviteCode);
-    await DatabaseIO.addToDB(inviteCode,"invitecodes");
+    await DatabaseIO.addToDB(inviteCode, "invitecodes");
     inviteCodes.add(inviteCode);
     return inviteCode.code;
-
   }
 
   // join server using invite code
@@ -596,32 +597,32 @@ class ChatAPI {
     invite.invitedUsers.add(reqUser);
   }
 
-  void sendDm(String recieverusername, String message, String senderusername){
+  void sendDm(String recieverusername, String message, String senderusername) {
     User sender = getUser(senderusername);
     User reciever = getUser(recieverusername);
     DirectMessage dm = DirectMessage(sender, reciever, message);
     print(dm);
     dm.send();
   }
 
-  Future<List<String>> getRecievedDms(String username) async{
+  Future<List<String>> getRecievedDms(String username) async {
     User user = getUser(username);
     List<DirectMessage> dms = await DirectMessage.getMessages(user);
     List<String> messages = [];
-    for(DirectMessage dm in dms){
-      if(dm.receiver.username == user.username){
+    for (DirectMessage dm in dms) {
+      if (dm.receiver.username == user.username) {
         messages.add("${dm.sender.username} : ${dm.message}");
       }
     }
     return messages;
   }
 
-  Future<List<String>> getSentDms(String username) async{
+  Future<List<String>> getSentDms(String username) async {
     User user = getUser(username);
     List<DirectMessage> dms = await DirectMessage.getMessages(user);
     List<String> messages = [];
-    for(DirectMessage dm in dms){
-      if(dm.sender.username == user.username){
+    for (DirectMessage dm in dms) {
+      if (dm.sender.username == user.username) {
         messages.add("${dm.receiver.username} : ${dm.message}");
       }
     }