push current stand

Abgabe_Mohr/controller/Chat.php

@@ -1,43 +1,50 @@
 <?php
 
-class Chat {
+class Chat
+{
+    public function index()
+    {
 
-    public function index() {
         if (!isset($_SESSION['user_id'])) {
-            header("Location: " . PROJEKT_URL . "/Login");
+            header("Location: /projekte/htdocs/login.php");
             exit;
         }
 
+        $currentUserId = $_SESSION['user_id'];
+
+        $chatModel = Factory::createChatModel();
         $userModel = Factory::createBenutzerModel();
-        $currentUser = $userModel->getUserById($_SESSION['user_id']);
-        $allUsers = $userModel->getAllUsers();
 
-        $selectedUser = null;
+        $allUsers = $userModel->getAllUsersExcept($currentUserId);
-        $messages = [];
+        $currentUser = $userModel->getUserById( $currentUserId);
+        $unreadCounts = $chatModel->getUnreadCounts($currentUserId);
 
-        // Prüfen, ob ein Kontakt ausgewählt wurde
-        if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['contact_id'])) {
-            $contactId = (int)$_POST['contact_id'];
-            $selectedUser = $userModel->getUserById($contactId);
 
-            $chatModel = Factory::createChatModel();
+        // Unread in Kontakte einfügen
-            $messages = $chatModel->getMessagesBetweenUsers($currentUser['id'], $selectedUser['id']);
+        foreach ($allUsers as &$user) {
+            $user['unread'] = $unreadCounts[$user['id']] ?? 0;
         }
 
-        // Prüfen, ob eine Nachricht gesendet wird
+        // View laden
-        if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['message']) && isset($_POST['receiver_id'])) {
+        require __DIR__ . "/../view/chat/index.php";
-            $chatModel = Factory::createChatModel();
-            $chatModel->senderID = $currentUser['id'];
-            $chatModel->empfaengerID = (int)$_POST['receiver_id'];
-            $chatModel->nachricht = trim($_POST['message']);
-            $chatModel->insert();
-
-            // Nachricht nach dem Senden erneut laden
-            $selectedUser = $userModel->getUserById($_POST['receiver_id']);
-            $messages = $chatModel->getMessagesBetweenUsers($currentUser['id'], $selectedUser['id']);
-        }
-
-        require_once(PROJEKT_VIEW_DIR . "/chat/index.php");
     }
 
+    // Nachrichten zwischen zwei Usern per AJAX laden
+    public function loadMessages()
+    {
+        
+        if (!isset($_SESSION['user_id'])) exit;
+
+        $current = $_SESSION['user_id'];
+        $other = (int)$_POST['user_id'];
+
+        $chatModel = new ChatModel();
+        $messages = $chatModel->getMessagesBetweenUsers($current, $other);
+
+        // Direkt lesen markieren
+        $chatModel->markAsRead($other, $current);
+
+        header('Content-Type: application/json');
+        echo json_encode($messages);
+    }
 }

Abgabe_Mohr/htdocs/index.php

@@ -4,6 +4,7 @@ require_once("../config/config.php");
 require_once("../libs/Database.php");
 require_once("../libs/Factory.php");
 require_once("../libs/Model.php");
+require_once("../libs/Controller.php");
 
 
  if (session_status() === PHP_SESSION_NONE) {

Abgabe_Mohr/libs/Controller.php

@@ -0,0 +1,14 @@
+<?php
+
+class Controller {
+
+    public function model($model) {
+        require_once "../model/" . $model . ".php";
+        return new $model();
+    }
+
+    public function view($view, $data = []) {
+        extract($data);
+        require_once "../view/" . $view . ".php";
+    }
+}

Abgabe_Mohr/model/BenutzerModel.php

@@ -27,6 +27,18 @@ class BenutzerModel extends Model {
 
     public function getErrors() { return $this->errorArray; }
 
+public function getAllUsersExcept($id)
+    {
+        $db = Database::getInstance()->getConnection();
+
+        $stmt = $db->prepare("SELECT id, vorname, nachname FROM user WHERE id != ?");
+        $stmt->bind_param("i", $id);
+        $stmt->execute();
+
+        return $stmt->get_result()->fetch_all(MYSQLI_ASSOC);
+    }
+
+
     // --- Registrierung ---
     public function insert() {
         $this->validate();

Abgabe_Mohr/model/ChatModel.php

@@ -1,33 +1,22 @@
 <?php
 
-class ChatModel {
+class ChatModel
-
+{
-    public $senderID;
+    public function insert($sender, $receiver, $message)
-    public $empfaengerID;
+    {
-    public $nachricht;
-
-    // Nachricht in DB speichern
-    public function insert() {
         $db = Database::getInstance()->getConnection();
 
         $stmt = $db->prepare("
-            INSERT INTO chat (user_sender, user_empfaenger, nachricht) 
+            INSERT INTO chat (user_sender, user_empfaenger, nachricht, gelesen)
-            VALUES (?, ?, ?)
+            VALUES (?, ?, ?, 0)
         ");
-        if (!$stmt) {
-            throw new Exception("Fehler beim Vorbereiten der DB-Anfrage: " . $db->error);
-        }
 
-        $stmt->bind_param("iis", $this->senderID, $this->empfaengerID, $this->nachricht);
+        $stmt->bind_param("iis", $sender, $receiver, $message);
-        if (!$stmt->execute()) {
+        $stmt->execute();
-            throw new Exception("Fehler beim Einfügen in die DB: " . $stmt->error);
-        }
-
-        return true;
     }
 
-    // Nachrichten zwischen zwei Usern abrufen
+    public function getMessagesBetweenUsers($user1, $user2)
-    public function getMessagesBetweenUsers($user1, $user2) {
+    {
         $db = Database::getInstance()->getConnection();
 
         $stmt = $db->prepare("
@@ -37,14 +26,45 @@ class ChatModel {
             ORDER BY id ASC
         ");
 
-        if (!$stmt) {
-            throw new Exception("Fehler beim Vorbereiten der DB-Abfrage: " . $db->error);
-        }
-
         $stmt->bind_param("iiii", $user1, $user2, $user2, $user1);
         $stmt->execute();
-        $result = $stmt->get_result();
+        return $stmt->get_result()->fetch_all(MYSQLI_ASSOC);
+    }
 
-        return $result->fetch_all(MYSQLI_ASSOC);
+    public function markAsRead($sender, $receiver)
+    {
+        $db = Database::getInstance()->getConnection();
+
+        $stmt = $db->prepare("
+            UPDATE chat SET gelesen = 1
+            WHERE user_sender = ? AND user_empfaenger = ?
+        ");
+
+        $stmt->bind_param("ii", $sender, $receiver);
+        $stmt->execute();
+    }
+
+    public function getUnreadCounts($receiverId)
+    {
+        $db = Database::getInstance()->getConnection();
+
+        $stmt = $db->prepare("
+            SELECT user_sender, COUNT(*) AS unread
+            FROM chat
+            WHERE user_empfaenger = ? AND gelesen = 0
+            GROUP BY user_sender
+        ");
+
+        $stmt->bind_param("i", $receiverId);
+        $stmt->execute();
+
+        $rows = $stmt->get_result()->fetch_all(MYSQLI_ASSOC);
+
+        $out = [];
+        foreach ($rows as $r) {
+            $out[$r['user_sender']] = $r['unread'];
+        }
+
+        return $out;
     }
 }

Abgabe_Mohr/view/chat/index.php

@@ -18,7 +18,7 @@
     </div>
     <div class="flex-1 overflow-y-auto" id="contacts-container">
         <?php foreach ($allUsers as $user): ?>
-            <?php if ($user['id'] != $currentUser['id']): ?>
+            <?php if ($user['id'] != $currentUserId): ?>
                 <div class="contact p-2 cursor-pointer hover:bg-gray-100 flex justify-between items-center" data-userid="<?= $user['id'] ?>">
                     <span><?= htmlspecialchars($user['vorname'] . ' ' . $user['nachname']) ?></span>
                     <span class="badge bg-red-500 text-white rounded-full px-2 py-1 text-xs" 
@@ -37,8 +37,8 @@
     <div id="chat-window" class="flex-1 p-4 overflow-y-auto">
         <?php if(!empty($messages)): ?>
             <?php foreach($messages as $msg): ?>
-                <div class="flex <?= $msg['user_sender'] == $currentUser['id'] ? 'justify-end' : 'justify-start' ?> mb-2">
+                <div class="flex <?= $msg['user_sender'] == $currentUserId  ? 'justify-end' : 'justify-start' ?> mb-2">
-                    <div class="<?= $msg['user_sender'] == $currentUser['id'] ? 'bg-blue-500 text-white' : 'bg-gray-300 text-black' ?> p-2 rounded max-w-xs break-words">
+                    <div class="<?= $msg['user_sender'] == $currentUserId  ? 'bg-blue-500 text-white' : 'bg-gray-300 text-black' ?> p-2 rounded max-w-xs break-words">
                         <?= htmlspecialchars($msg['nachricht']) ?>
                     </div>
                 </div>
@@ -54,7 +54,7 @@
 </div>
 
 <script>
-const currentUserId = <?= $currentUser['id'] ?>;
+const currentUserId = <?= $currentUserId  ?>;
 let currentChatUserId = null;
 
 const ws = new WebSocket('ws://localhost:8080');

Abgabe_Mohr/wsserver.php

@@ -80,6 +80,27 @@ class ChatServer implements MessageComponentInterface {
         $stmt->close();
         $db->close();
     }
+
+protected function countUnread($receiverId, $senderId) {
+    $db = new mysqli("localhost","root","","projekte");
+
+    $stmt = $db->prepare("
+        SELECT COUNT(*) 
+        FROM chat 
+        WHERE user_empfaenger = ? 
+        AND user_sender = ?
+        AND gelesen = 0
+    ");
+    $stmt->bind_param("ii", $receiverId, $senderId);
+    $stmt->execute();
+    $stmt->bind_result($count);
+    $stmt->fetch();
+
+    $stmt->close();
+    $db->close();
+    return $count;
+}
+
 }
 
 // Server starten