From 7fc64a03ad6d37bf515d84f190692cc613450839 Mon Sep 17 00:00:00 2001
From: Fabian Schmidt <andreas.schmidti96@gmx.de>
Date: Mon, 2 Feb 2026 20:44:37 +0100
Subject: [PATCH] Create chatroom and message classes to display messages

---
 client/inc/models/chatroom.h   | 16 ++++++++++++++++
 client/inc/models/message.h    | 17 +++++++++++++++++
 client/inc/ui/mainwindow.h     |  2 ++
 client/src/models/chatroom.cpp | 13 +++++++++++++
 client/src/models/message.cpp  | 11 +++++++++++
 client/src/ui/mainwindow.cpp   | 13 +++++++------
 6 files changed, 66 insertions(+), 6 deletions(-)
 create mode 100644 client/inc/models/chatroom.h
 create mode 100644 client/inc/models/message.h
 create mode 100644 client/src/models/chatroom.cpp
 create mode 100644 client/src/models/message.cpp

diff --git a/client/inc/models/chatroom.h b/client/inc/models/chatroom.h
new file mode 100644
index 0000000..c04dad3
--- /dev/null
+++ b/client/inc/models/chatroom.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include "models/message.h"
+#include <QStringList>
+#include <vector>
+class Chatroom {
+public:
+  Chatroom() {}
+  ~Chatroom() {}
+
+  void addMessage(Message message);
+  QString getMessagesString();
+
+private:
+  std::vector<Message> m_messages;
+};
diff --git a/client/inc/models/message.h b/client/inc/models/message.h
new file mode 100644
index 0000000..4178437
--- /dev/null
+++ b/client/inc/models/message.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <QDateTime>
+#include <QString>
+
+class Message {
+public:
+  Message(int, QDateTime, QString);
+  ~Message() {}
+
+  QString toString() const;
+
+private:
+  int m_userId;
+  QDateTime m_timestamp;
+  QString m_content;
+};
diff --git a/client/inc/ui/mainwindow.h b/client/inc/ui/mainwindow.h
index c969412..0fb9abf 100644
--- a/client/inc/ui/mainwindow.h
+++ b/client/inc/ui/mainwindow.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include "models/chatroom.h"
 #include <QMainWindow>
 
 QT_BEGIN_NAMESPACE
@@ -17,6 +18,7 @@ public:
 
 private:
   Ui::MainWindow *ui;
+  Chatroom m_chatroom;
 
 public slots:
   void receiveMsg(QString &);
diff --git a/client/src/models/chatroom.cpp b/client/src/models/chatroom.cpp
new file mode 100644
index 0000000..2c39657
--- /dev/null
+++ b/client/src/models/chatroom.cpp
@@ -0,0 +1,13 @@
+#include "models/chatroom.h"
+#include <QStringList>
+#include <algorithm>
+
+void Chatroom::addMessage(Message message) { m_messages.push_back(message); }
+
+QString Chatroom::getMessagesString() {
+  std::vector<QString> messageStrings(m_messages.size());
+  std::transform(m_messages.begin(), m_messages.end(), messageStrings.begin(),
+                 [](const Message &msg) { return msg.toString(); });
+  QStringList messageList(messageStrings.begin(), messageStrings.end());
+  return messageList.join("\n");
+}
diff --git a/client/src/models/message.cpp b/client/src/models/message.cpp
new file mode 100644
index 0000000..7cc01c8
--- /dev/null
+++ b/client/src/models/message.cpp
@@ -0,0 +1,11 @@
+#include "models/message.h"
+
+Message::Message(int userId, QDateTime timestamp, QString content)
+    : m_userId(userId), m_timestamp(timestamp), m_content(content) {}
+
+QString Message::toString() const {
+  return QString("(%1)[%2] %3")
+      .arg(m_userId)
+      .arg(m_timestamp.toString())
+      .arg(m_content);
+}
diff --git a/client/src/ui/mainwindow.cpp b/client/src/ui/mainwindow.cpp
index 0d9a107..7debe25 100644
--- a/client/src/ui/mainwindow.cpp
+++ b/client/src/ui/mainwindow.cpp
@@ -5,15 +5,16 @@ MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent), ui(new Ui::MainWindow) {
   ui->setupUi(this);
 
-  connect(ui->sendButton, &QPushButton::clicked, this,
-          []() { qDebug() << "Button clicked"; });
+  connect(ui->sendButton, &QPushButton::clicked, this, [this]() {
+    auto msg = ui->inputText->toPlainText();
+    receiveMsg(msg);
+  });
 }
 
 MainWindow::~MainWindow() { delete ui; }
 
 void MainWindow::receiveMsg(QString &msg) {
-  auto messages = ui->outputText->text();
-  messages.append("\n");
-  messages.append(msg);
-  ui->outputText->setText(messages);
+  Message message(0, QDateTime::currentDateTime(), msg);
+  m_chatroom.addMessage(message);
+  ui->outputText->setText(m_chatroom.getMessagesString());
 }