<?php
    $navClass = "nav-logged-out";
    $links = [
        "films" => "&#x1F3AC; Films",                   // 🎬
        "login" => "&#x1F511; Login"                    // 🔑
    ];

    if (isset($_SESSION["email"])) {
        $email = $_SESSION["email"];

        $query = "SELECT isAdmin, isActive FROM citeLeParis_user WHERE email = ?";
        $stmt = mysqli_prepare($dbc, $query);

        if ($stmt) {
            mysqli_stmt_bind_param($stmt, "s", $email);
            mysqli_stmt_execute($stmt);
            $result = mysqli_stmt_get_result($stmt);
            $user = mysqli_fetch_assoc($result);
            mysqli_stmt_close($stmt);
    
            if ($user && $user["isActive"] == 1) {
                $navClass = "nav-logged-in";
                
                // user is an admin
                if ($user["isAdmin"] == 1) {
                    $links = [
                        "films" => "&#x1F3AC; Films",                                       // 🎬
                        "schedule" => "&#x1F4C5; Schedule",                                 // 📅
                        "film" => [
                            "title" => "&#x1F39E; Film",
                            "items" => [
                                "add_film" => "&#x2795; Add Film",                          // ➕
                                "manage_film" => "&#x1F527; Manage Film",                   // 🔧
                            ]
                        ],                               // 🎞️
                        "employee" => [
                            "title" => "&#x1F464; Employee",                                // 👤
                            "items" => [
                                "add_employee" => "&#x2795; Add Employee",                  // ➕
                                "manage_employee" => "&#x1F527; Manage Employee",           // 🔧
                            ]
                        ],
                        "shift" => [
                            "title" => "&#x2699;&#xFE0F; Shift",                            // ⚙️
                            "items" => [
                                "add_shift" => "&#x1F551; Add Shift",                       // 🕑
                                "manage_shift" => "&#128295; Manage Shift"                  // 🛠️
                            ]
                        ],
                        "registration" => [
                            "title" => "&#x2699;&#xFE0F; Registration",                    // ⚙️
                            "items" => [
                                "manage_registration" => "&#128295; Manage Registration"   // 🛠️
                            ]
                        ],
                        "plan" => [
                            "title" => "&#x2699;&#xFE0F; Plan",                             // ⚙️
                            "items" => [
                                "manage_plan" => "&#128295; Manage Plan"                    // 🛠️
                            ]
                        ]
                    ];
                } 
                // user is not an admin
                else {
                    $links = [
                        "films" => "&#x1F3AC; Films",                                   // 🎬
                        "login" => "&#x1F511; Login"                                    // 🔑
                    ];
                }
                
            } else {
                // inactive users
                $links = [
                    "films" => "&#x1F3AC; Films",                                       // 🎬
                    "login" => "&#x1F511; Login"                                        // 🔑
                ];
            }
        }
    }
?>
<header>
    <nav class="<?php echo $navClass; ?>">
        <?php
            //-----------LOGIN----------------------------------------------------------
            if(isset($_SESSION["email"]))
            {
                echo '<form method="post" id="form-logout">
                    <p><label for="logoff">User: ' . "<span>" . htmlspecialchars($_SESSION["email"]) . "</span>" . '</label>
                        <input type="submit" name="BUTTON_logout" value="Logout" class="btn logout"></p>
                    </form>';
            }

            if(isset($_POST["BUTTON_logout"]))
            {
                unset($_SESSION["email"]);
                unset($_SESSION["isAdmin"]);
                unset($_SESSION["userID"]);
                header("location: index.php?page=films");  
            }
            //---------------------------------------------------------------------------
        ?>
        <ul>
            <?php
                $currentPage = "";   // default page
            
                if (isset($_GET["page"])) {
                    $currentPage = $_GET["page"];
                }

                foreach ($links as $link => $name) {
                    // check if dropdown
                    if (is_array($name)) {
                        echo "<li class='dropdown'>";
                        echo "<a>{$name['title']} &#9662</a>";                          // ▼
                        echo "<ul class='dropdown-menu'>";
                        foreach ($name['items'] as $sublink => $subname) {
                            $isActive = ($currentPage == $sublink) ? "active" : "";
                            echo "<li><a href='index.php?page=$sublink' class='$isActive'>$subname</a></li>";
                        }
                        echo "</ul>";
                        echo "</li>";
                    }
                    // normal link
                    else {
                        $isActive = ($currentPage == $link) ? "active" : "";
                        echo "<li><a href='index.php?page=$link' class='$isActive'>$name</a></li>";
                    }
                }
                
            ?>
    </nav>
</header>