@php
    // Menu entries are data so the sidebar stays a single, small template.
    // Each entry declares the ability that has to pass for it to be shown.
    $sections = [
        [
            'heading' => null,
            'items' => [
                ['label' => 'Dashboard', 'icon' => 'bi-speedometer2', 'route' => 'admin.dashboard', 'active' => 'admin.dashboard', 'can' => null],
            ],
        ],
        [
            'heading' => 'Content Management',
            'items' => [
                ['label' => 'Libraries', 'icon' => 'bi-collection', 'route' => 'admin.libraries.index', 'active' => 'admin.libraries.*', 'can' => \App\Support\Permissions::LIBRARIES_VIEW],
                ['label' => 'X-Ray Cases', 'icon' => 'bi-images', 'route' => 'admin.xray-cases.index', 'active' => 'admin.xray-cases.*', 'can' => \App\Support\Permissions::CASES_VIEW],
                ['label' => 'Items of Interest', 'icon' => 'bi-crosshair', 'route' => 'admin.items.index', 'active' => 'admin.items.*', 'can' => \App\Support\Permissions::ITEMS_VIEW],
            ],
        ],
        [
            'heading' => 'Examinations',
            'items' => [
                ['label' => 'Exams', 'icon' => 'bi-clipboard-check', 'route' => 'admin.exams.index', 'active' => 'admin.exams.*', 'can' => \App\Support\Permissions::EXAMS_VIEW],
                ['label' => 'Students', 'icon' => 'bi-mortarboard', 'route' => 'admin.students.index', 'active' => 'admin.students.*', 'can' => \App\Support\Permissions::STUDENTS_VIEW],
                ['label' => 'Exam Assignments', 'icon' => 'bi-person-check', 'route' => 'admin.exam-assignments.index', 'active' => 'admin.exam-assignments.*', 'can' => \App\Support\Permissions::ASSIGNMENTS_VIEW],
            ],
        ],
        [
            'heading' => 'System',
            'items' => [
                ['label' => 'Users', 'icon' => 'bi-people', 'route' => 'admin.users.index', 'active' => 'admin.users.*', 'can' => \App\Support\Permissions::USERS_VIEW],
                ['label' => 'Roles & Permissions', 'icon' => 'bi-shield-lock', 'route' => 'admin.roles.index', 'active' => 'admin.roles.*', 'can' => \App\Support\Permissions::ROLES_VIEW],
            ],
        ],
    ];
@endphp

<nav class="xrt-sidebar" aria-label="Main navigation">
    @foreach ($sections as $section)
        @php
            $visible = collect($section['items'])->filter(fn ($item) => $item['can'] === null || auth()->user()->can($item['can']));
        @endphp

        @continue($visible->isEmpty())

        @if ($section['heading'])
            <div class="xrt-sidebar-heading"><span>{{ $section['heading'] }}</span></div>
        @else
            <div class="pt-2"></div>
        @endif

        @foreach ($visible as $item)
            <a class="xrt-nav-link {{ request()->routeIs($item['active']) ? 'active' : '' }}"
               href="{{ route($item['route']) }}"
               title="{{ $item['label'] }}">
                <i class="bi {{ $item['icon'] }}"></i>
                <span class="xrt-nav-text">{{ $item['label'] }}</span>
            </a>
        @endforeach
    @endforeach
</nav>