simplified the process of getting user_infos as the user we want to get some info is the one connected

assets/php/utils.php

@@ -158,7 +158,7 @@ function get_user_id_from_email($email)
     return false;
 }
 
-function get_user_info_from_session_id($session_id, $info)
+function get_user_info_from_session_id($info)
 {
     global $PDO, $SESSION_COOKIE_NAME;
 
@@ -170,7 +170,7 @@ function get_user_info_from_session_id($session_id, $info)
             ON sessions.user_id = accounts.id 
             WHERE session_id = :session_id;";
         $query = $PDO->prepare($sql);
-        $query->bindValue(":session_id", $session_id);
+        $query->bindValue(":session_id", $_COOKIE[$SESSION_COOKIE_NAME]);
         if ($query->execute())
             foreach ($query as $row) {
                 switch ($info) {
@@ -218,3 +218,100 @@ function change_user_password($user_id, $new_clear_password)
     $query->bindValue(":id", $user_id, PDO::PARAM_INT);
     return $query->execute();
 }
+
+function add_cupboard($name, $description)
+{
+    global $PDO;
+
+    $sql = "INSERT INTO cupboards (name, description, owner_id, public_id)
+        VALUES (:name, :description, :owner_id, :public_id);";
+    $query = $PDO->prepare($sql);
+    $query->bindValue(":name", $name);
+    $query->bindValue(":description", $description);
+    $query->bindValue(":owner_id", get_user_info_from_session_id("id"));
+    $query->bindValue(":public_id", generate_random_string());
+    return $query->execute();
+}
+
+function does_cupboard_exist_from_id($id)
+{
+    global $PDO;
+
+    $sql = "SELECT id FROM cupboards WHERE id = :id;";
+    $query = $PDO->prepare($sql);
+    $query->bindValue(":id", $id);
+
+    if ($query->execute()) {
+        return ($query->rowCount() === 1);
+    }
+    return false;
+}
+
+function add_product($name, $description, $expiration_date = NULL, $cupboard_id = NULL)
+{
+    global $PDO;
+
+    $sql = "INSERT INTO products 
+        (name, description, expiration_date, owner_id, cupboard_id, public_id)
+        VALUES 
+        (:name, :description, :expiration_date, :owner_id, :cupboard_id, :public_id);";
+    $query = $PDO->prepare($sql);
+    $query->bindValue(":name", $name);
+    $query->bindValue(":description", $description);
+
+    if ($expiration_date === NULL) {
+        $query->bindValue(":expiration_date", NULL, PDO::PARAM_INT);
+    } else {
+        $query->bindValue(":expiration_date", $expiration_date);
+    }
+
+    if ($cupboard_id === NULL) {
+        $query->bindValue(":cupboard_id", NULL, PDO::PARAM_INT);
+    } else {
+        $query->bindValue(":cupboard_id", $cupboard_id);
+    }
+
+    $query->bindValue(":owner_id", get_user_info_from_session_id("id"));
+    $query->bindValue(":public_id", generate_random_string());
+    return $query->execute();
+}
+
+function get_users_products_array()
+{
+    global $PDO;
+
+    $user_products = array();
+
+    $sql = "SELECT 
+        id, name, description, expiration_date, added_date, cupboard_name, public_id
+        FROM products WHERE owner_id = :owner_id;";
+
+    $query = $PDO->prepare($sql);
+    $query->bindValue(":owner_id", get_user_info_from_session_id("id"));
+    if ($query->execute()) {
+        foreach ($query as $row) {
+            array_push($user_products, $row);
+        }
+    }
+    return $user_products;
+}
+
+function get_users_cupboards_array()
+{
+    global $PDO;
+
+    $user_cupboards = array();
+
+    $sql = "SELECT 
+        id, name, description, public_id
+        FROM products WHERE owner_id = :owner_id;";
+
+    $query = $PDO->prepare($sql);
+    $query->bindValue(":owner_id", get_user_info_from_session_id("id"));
+    if ($query->execute()) {
+        foreach ($query as $row) {
+            array_push($user_cupboards, $row);
+        }
+    }
+    return $user_cupboards;
+}

reset-password.php

@@ -36,7 +36,7 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
     // Check input errors before updating the database
     if (empty($new_password_err) && empty($confirm_password_err)) {
         if (change_user_password(
-            get_user_info_from_session_id($_COOKIE[$SESSION_COOKIE_NAME], "id"),
+            get_user_info_from_session_id("id"),
             $new_password
         )) { 
             //header("location: welcome.php");

welcome.php

@@ -20,7 +20,7 @@ if(!is_connected()){
 </head>
 <body>
     <div class="page-header">
-        <h1>Hi, <b><?php echo htmlspecialchars(get_user_info_from_session_id($_COOKIE[$SESSION_COOKIE_NAME], "first_name")); ?></b>. Welcome to our site.</h1>
+        <h1>Hi, <b><?php echo htmlspecialchars(get_user_info_from_session_id("first_name")); ?></b>. Welcome to our site.</h1>
     </div>
     <p>
         <a href="reset-password.php" class="btn btn-warning">Reset Your Password</a>