{{-- 
    Lokasi File: resources/views/guru/ujian/index.blade.php (Sesuaikan dengan lokasi file Anda)
    Deskripsi: Dashboard Jadwal Ujian & Token (Mobile-Optimized)
--}}

@extends('layouts.guru_master')

@section('title', 'Jadwal & Token Ujian | Smart Cendekia')

@section('css')
<style>
    :root {
        --app-bg: #f4f7fb;
        --primary: #4f46e5;
        --text-main: #0f172a;
        --font-mono: 'JetBrains Mono', monospace;
    }

    body { font-family: 'Plus Jakarta Sans', sans-serif !important; background-color: var(--app-bg); }

    /* === RESPONSIVE LAYOUT SWITCHER === */
    @media (max-width: 768px) { .desktop-view { display: none !important; } }
    @media (min-width: 769px) { .mobile-view { display: none !important; } }

    /* === HERO GRADIENT CARD === */
    .hero-gradient {
        background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
        border-radius: 28px; padding: 25px 20px; color: white;
        position: relative; overflow: hidden;
        box-shadow: 0 15px 30px -10px rgba(59, 130, 246, 0.4);
        margin-bottom: 25px;
    }
    .hero-gradient::after {
        content: ''; position: absolute; width: 150px; height: 150px;
        background: rgba(255,255,255,0.1); border-radius: 50%;
        top: -40px; right: -20px;
    }

    /* === DESKTOP TABLE UI === */
    .modern-card { background: white; border-radius: 24px; box-shadow: 0 10px 30px rgba(0,0,0,0.03); border: none; overflow: hidden; }
    .table-modern th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; font-weight: 800; color: #64748b; background: #f8fafc; padding: 1.2rem; border-bottom: 2px solid #f1f5f9; }
    .table-modern td { vertical-align: middle; padding: 1.2rem; border-bottom: 1px solid #f8fafc; font-weight: 500; }
    .table-modern tr:hover td { background-color: #f8fafc; }

    /* === MOBILE CARD UI === */
    .exam-card { background: white; border-radius: 20px; padding: 20px; margin-bottom: 15px; border: 1px solid #f1f5f9; box-shadow: 0 8px 20px rgba(0,0,0,0.02); position: relative; overflow: hidden; }
    .exam-card::before { content: ''; position: absolute; top: 0; left: 0; width: 5px; height: 100%; background: var(--primary); }

    /* === TOKEN BOX === */
    .token-box {
        font-family: var(--font-mono); background: #f8fafc; border: 2px dashed #cbd5e1;
        border-radius: 12px; padding: 6px 12px; font-size: 1.15rem; font-weight: 800;
        letter-spacing: 3px; color: #0f172a; display: inline-block;
    }

    /* === STATUS BADGES & PULSE === */
    .status-ongoing { background-color: #ecfdf5; color: #059669; position: relative; padding-left: 28px !important; }
    .pulse-ring {
        position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 8px; height: 8px;
        border-radius: 50%; background: #10b981; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
        animation: pulse-green 2s infinite;
    }
    @keyframes pulse-green {
        0% { transform: translateY(-50%) scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
        70% { transform: translateY(-50%) scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
        100% { transform: translateY(-50%) scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* === ACTION BUTTONS === */
    .btn-action { border-radius: 12px; padding: 8px 15px; font-size: 0.85rem; font-weight: 700; transition: 0.2s; }
</style>
@stop

@section('content_body')
<div class="container-fluid pb-5 px-3 animate__animated animate__fadeIn">

    {{-- HERO HEADER --}}
    <div class="hero-gradient animate__animated animate__fadeInDown">
        <div style="position: relative; z-index: 2;">
            <div class="d-flex justify-content-between align-items-start">
                <div>
                    <h3 class="font-weight-bold mb-1" style="font-size: 1.5rem;">CBT Controller</h3>
                    <p class="mb-0 font-weight-bold" style="opacity: 0.8; font-size: 0.85rem;">Kelola Jadwal & Token Ujian Siswa</p>
                </div>
                <div style="width: 50px; height: 50px; background: rgba(255,255,255,0.2); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem;">
                    <i class="fas fa-laptop-code"></i>
                </div>
            </div>
            <div class="mt-4">
                <a href="{{ route('ujian.create') }}" class="btn btn-light rounded-pill font-weight-bold shadow-sm text-primary px-4 py-2" style="font-size: 0.85rem;">
                    <i class="fas fa-plus-circle mr-1"></i> Terbitkan Ujian Baru
                </a>
            </div>
        </div>
    </div>

    {{-- ALERTS --}}
    @if(session('success'))
        <div class="alert alert-success border-0 shadow-sm d-flex align-items-center mb-4" style="border-radius: 16px; background-color: #ecfdf5; color: #065f46;">
            <i class="fas fa-check-circle mr-3 fa-lg"></i>
            <div class="font-weight-bold">{{ session('success') }}</div>
            <button type="button" class="close ml-auto" data-dismiss="alert" style="color: #065f46;">&times;</button>
        </div>
    @endif

    {{-- ==========================================
         TAMPILAN MOBILE (Cards)
         ========================================== --}}
    <div class="mobile-view">
        @forelse($ujians as $ujian)
            @php
                $now = \Carbon\Carbon::now();
                if ($now < $ujian->waktu_mulai) {
                    $status = 'Belum Mulai'; $class = 'bg-light text-muted border'; $icon = 'fas fa-hourglass-start';
                } elseif ($now > $ujian->waktu_selesai) {
                    $status = 'Selesai'; $class = 'bg-light text-muted'; $icon = 'fas fa-check-double';
                } else {
                    $status = 'Berlangsung'; $class = 'status-ongoing'; $icon = '';
                }
            @endphp
            
            <div class="exam-card animate__animated animate__fadeInUp" style="animation-delay: {{ $loop->index * 0.1 }}s;">
                <div class="d-flex justify-content-between align-items-start mb-3">
                    <span class="badge {{ $class }} rounded-pill px-3 py-1 font-weight-bold" style="font-size: 0.7rem;">
                        @if($status == 'Berlangsung') <span class="pulse-ring"></span> @else <i class="{{ $icon }} mr-1"></i> @endif
                        {{ $status }}
                    </span>
                    <div class="text-right small font-weight-bold text-muted" style="line-height: 1.2;">
                        <div>{{ $ujian->waktu_mulai->format('d M y') }}</div>
                        <div class="text-primary">{{ $ujian->waktu_mulai->format('H:i') }} - {{ $ujian->waktu_selesai->format('H:i') }}</div>
                    </div>
                </div>

                <h4 class="font-weight-bold text-dark mb-1" style="font-size: 1.1rem; line-height: 1.3;">{{ $ujian->nama_ujian }}</h4>
                <div class="d-flex align-items-center mb-3" style="font-size: 0.8rem; color: #64748b;">
                    <span><i class="fas fa-database text-primary opacity-50 mr-1"></i> {{ $ujian->bankSoal->judul ?? 'Bank Soal Terhapus' }}</span>
                    <span class="mx-2 opacity-25">|</span>
                    <span><i class="fas fa-users text-primary opacity-50 mr-1"></i> Kelas {{ $ujian->kelas->nama_kelas ?? '-' }}</span>
                </div>

                <div class="d-flex justify-content-between align-items-end mt-4 pt-3" style="border-top: 1px dashed #e2e8f0;">
                    <div>
                        <span class="d-block small font-weight-bold text-muted mb-1 text-uppercase" style="letter-spacing: 1px; font-size: 0.65rem;">Token Akses</span>
                        <div class="token-box" style="padding: 4px 8px; font-size: 1rem;">{{ $ujian->token }}</div>
                    </div>
                    <div class="d-flex gap-2">
                        <a href="{{ route('ujian.monitoring', $ujian->id) }}" class="btn btn-light text-primary btn-sm rounded-circle shadow-sm" style="width: 36px; height: 36px; line-height: 24px;" title="Monitor Live">
                            <i class="fas fa-desktop"></i>
                        </a>
                        @if($now > $ujian->waktu_mulai)
                            <a href="{{ route('ujian.koreksi.index', $ujian->id) }}" class="btn btn-success btn-sm rounded-circle shadow-sm ml-2" style="width: 36px; height: 36px; line-height: 24px;" title="Koreksi / Nilai">
                                <i class="fas fa-clipboard-check"></i>
                            </a>
                        @endif
                    </div>
                </div>
            </div>
        @empty
            <div class="text-center py-5 bg-white shadow-sm" style="border-radius: 28px; border: 1px dashed #cbd5e1;">
                <img src="{{ asset('vendor/adminlte/dist/img/cloud_empty.png') }}" style="opacity: 0.2; width: 80px; filter: grayscale(100%);" class="mb-3">
                <h6 class="font-weight-bold text-dark">Belum Ada Ujian</h6>
                <p class="text-muted small font-weight-bold px-3">Terbitkan jadwal baru untuk memulai CBT.</p>
            </div>
        @endforelse
    </div>

    {{-- ==========================================
         TAMPILAN DESKTOP (Table)
         ========================================== --}}
    <div class="desktop-view modern-card shadow-sm">
        <div class="table-responsive">
            <table class="table table-modern mb-0">
                <thead>
                    <tr>
                        <th style="width: 30%">Informasi Ujian</th>
                        <th style="width: 25%">Waktu Pelaksanaan</th>
                        <th class="text-center">Token</th>
                        <th class="text-center">Status</th>
                        <th class="text-center">Aksi</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach($ujians as $ujian)
                        @php
                            $now = \Carbon\Carbon::now();
                            if ($now < $ujian->waktu_mulai) {
                                $status = 'Belum Mulai'; $class = 'bg-light text-muted border'; $icon = 'fas fa-hourglass-start';
                            } elseif ($now > $ujian->waktu_selesai) {
                                $status = 'Selesai'; $class = 'bg-light text-muted'; $icon = 'fas fa-check-double';
                            } else {
                                $status = 'Berlangsung'; $class = 'status-ongoing'; $icon = '';
                            }
                        @endphp
                        <tr>
                            <td>
                                <div class="d-flex align-items-start">
                                    <div class="rounded-lg mr-3 d-flex align-items-center justify-content-center shadow-sm" style="width: 45px; height: 45px; background: #eef2ff; color: var(--primary); font-size: 1.2rem;">
                                        <i class="fas fa-file-signature"></i>
                                    </div>
                                    <div>
                                        <div class="font-weight-bold text-dark mb-1" style="font-size: 1.05rem;">{{ $ujian->nama_ujian }}</div>
                                        <div class="text-muted small font-weight-bold mb-1">
                                            <i class="fas fa-database mr-1 text-primary opacity-50"></i> {{ $ujian->bankSoal->judul ?? 'Bank Soal Terhapus' }}
                                        </div>
                                        <span class="badge badge-light border text-muted px-2 py-1 rounded">
                                            <i class="fas fa-users mr-1"></i> Kelas {{ $ujian->kelas->nama_kelas ?? '-' }}
                                        </span>
                                    </div>
                                </div>
                            </td>
                            <td>
                                <div class="font-weight-bold text-dark mb-1">
                                    <i class="far fa-calendar-alt mr-1 text-primary opacity-50"></i> {{ $ujian->waktu_mulai->format('d F Y') }}
                                </div>
                                <div class="text-muted font-weight-bold small bg-light d-inline-block px-2 py-1 rounded">
                                    <i class="far fa-clock mr-1"></i> {{ $ujian->waktu_mulai->format('H:i') }} <span class="mx-1 text-primary">&rarr;</span> {{ $ujian->waktu_selesai->format('H:i') }} WIB
                                </div>
                            </td>
                            <td class="text-center">
                                <div class="token-box" title="Token Akses Siswa">{{ $ujian->token }}</div>
                            </td>
                            <td class="text-center">
                                <span class="badge {{ $class }} rounded-pill px-3 py-2 font-weight-bold shadow-sm" style="font-size: 0.75rem;">
                                    @if($status == 'Berlangsung') <span class="pulse-ring"></span> @else <i class="{{ $icon }} mr-1"></i> @endif
                                    {{ $status }}
                                </span>
                            </td>
                            <td class="text-center">
                                <a href="{{ route('ujian.monitoring', $ujian->id) }}" class="btn btn-light btn-action text-primary shadow-sm" title="Monitoring Live">
                                    <i class="fas fa-desktop"></i>
                                </a>
                                @if($now > $ujian->waktu_mulai)
                                    <a href="{{ route('ujian.koreksi.index', $ujian->id) }}" class="btn btn-success btn-action shadow-sm ml-1" title="Lihat Nilai">
                                        <i class="fas fa-clipboard-check"></i> Nilai
                                    </a>
                                @else
                                    <button class="btn btn-light btn-action text-muted shadow-sm ml-1 opacity-50" disabled title="Belum dimulai">
                                        <i class="fas fa-clipboard-check"></i>
                                    </button>
                                @endif
                            </td>
                        </tr>
                    @endforeach
                </tbody>
            </table>
        </div>
    </div>

    {{-- PAGINATION --}}
    @if($ujians->hasPages())
        <div class="d-flex justify-content-center mt-4">
            {{ $ujians->links('pagination::bootstrap-4') }}
        </div>
    @endif

</div>
@stop