@extends('components.app-layout')
@section('title', 'Student Dashboard - SPETA Exam Hub')

@section('content')
<div class="fade-in">
    <!-- Header -->
    <div class="mb-8">
        <h1 class="text-2xl font-bold text-gray-900 dark:text-white">Hello, {{ auth()->user()->first_name }}!</h1>
        <p class="text-gray-500 dark:text-gray-400 mt-1">Here's what's happening with your exams</p>
    </div>

    <!-- Quick Stats -->
    <div class="grid grid-cols-2 lg:grid-cols-4 gap-4 mb-8">
        @php
            $studentStats = [
                ['label' => 'Available', 'value' => $availableExams->count(), 'color' => 'primary', 'icon' => 'M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4'],
                ['label' => 'Upcoming', 'value' => $upcomingExams->count(), 'color' => 'amber', 'icon' => 'M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z'],
                ['label' => 'Completed', 'value' => $completedExams, 'color' => 'emerald', 'icon' => 'M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z'],
                ['label' => 'Avg Score', 'value' => round($averageScore, 1) . '%', 'color' => 'violet', 'icon' => 'M13 7h8m0 0v8m0-8l-8 8-4-4-6 6'],
            ];
        @endphp
        @foreach($studentStats as $stat)
            <div class="bg-white dark:bg-gray-800 rounded-xl p-4 border border-gray-200 dark:border-gray-700 shadow-sm">
                <div class="flex items-center gap-3">
                    <div class="w-9 h-9 rounded-lg bg-{{ $stat['color'] }}-50 dark:bg-{{ $stat['color'] }}-900/20 flex items-center justify-center shrink-0">
                        <svg class="w-4 h-4 text-{{ $stat['color'] }}-600 dark:text-{{ $stat['color'] }}-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="{{ $stat['icon'] }}"/>
                        </svg>
                    </div>
                    <div>
                        <p class="text-lg font-bold text-gray-900 dark:text-white">{{ $stat['value'] }}</p>
                        <p class="text-xs text-gray-500 dark:text-gray-400">{{ $stat['label'] }}</p>
                    </div>
                </div>
            </div>
        @endforeach
    </div>

    <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
        <!-- Available Exams -->
        <div class="lg:col-span-2 space-y-6">
            <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm">
                <div class="px-5 py-4 border-b border-gray-200 dark:border-gray-700 flex items-center justify-between">
                    <h3 class="font-semibold text-gray-900 dark:text-white">Available Exams</h3>
                    <a href="{{ route('student.exams.available') }}" class="text-xs text-primary-600 hover:text-primary-700 font-medium">View All</a>
                </div>
                <div class="divide-y divide-gray-100 dark:divide-gray-700/50">
                    @forelse($availableExams as $exam)
                        <div class="px-5 py-4 hover:bg-gray-50 dark:hover:bg-gray-700/30 transition-colors">
                            <div class="flex items-start justify-between">
                                <div class="flex-1 min-w-0">
                                    <h4 class="text-sm font-semibold text-gray-900 dark:text-white">{{ $exam->title }}</h4>
                                    <p class="text-xs text-gray-500 dark:text-gray-400 mt-1">{{ $exam->course->title }} · {{ $exam->type_label }} · {{ $exam->duration_minutes }} min · {{ $exam->question_count }} questions</p>
                                    @if($exam->end_time)
                                        <p class="text-xs text-red-500 mt-1">Closes {{ $exam->end_time->diffForHumans() }}</p>
                                    @endif
                                </div>
                                <a href="{{ route('student.exams.show', $exam) }}" 
                                   class="ml-4 shrink-0 px-3 py-1.5 bg-primary-600 hover:bg-primary-700 text-white text-xs font-medium rounded-lg transition-colors">
                                    Start
                                </a>
                            </div>
                        </div>
                    @empty
                        <div class="px-5 py-8 text-center text-sm text-gray-500 dark:text-gray-400">No available exams right now</div>
                    @endforelse
                </div>
            </div>

            <!-- Upcoming Exams -->
            @if($upcomingExams->count() > 0)
                <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm">
                    <div class="px-5 py-4 border-b border-gray-200 dark:border-gray-700">
                        <h3 class="font-semibold text-gray-900 dark:text-white">Upcoming Exams</h3>
                    </div>
                    <div class="divide-y divide-gray-100 dark:divide-gray-700/50">
                        @foreach($upcomingExams as $exam)
                            <div class="px-5 py-4">
                                <div class="flex items-center justify-between">
                                    <div>
                                        <h4 class="text-sm font-medium text-gray-900 dark:text-white">{{ $exam->title }}</h4>
                                        <p class="text-xs text-gray-500 dark:text-gray-400 mt-1">{{ $exam->course->title }} · Starts {{ $exam->start_time->format('M d, Y H:i') }}</p>
                                    </div>
                                    <span class="text-xs px-2 py-1 rounded-md bg-amber-50 dark:bg-amber-900/20 text-amber-700 dark:text-amber-400 font-medium">
                                        {{ $exam->start_time->diffForHumans() }}
                                    </span>
                                </div>
                            </div>
                        @endforeach
                    </div>
                </div>
            @endif
        </div>

        <!-- Right Column -->
        <div class="space-y-6">
            <!-- Performance Chart -->
            <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-5">
                <h3 class="font-semibold text-gray-900 dark:text-white mb-4">Performance</h3>
                @if($performanceData->count() > 0)
                    <canvas id="studentPerfChart" height="180"></canvas>
                @else
                    <div class="text-center py-6 text-sm text-gray-500 dark:text-gray-400">No data yet</div>
                @endif
            </div>

            <!-- Recent Results -->
            <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm">
                <div class="px-5 py-4 border-b border-gray-200 dark:border-gray-700">
                    <h3 class="font-semibold text-gray-900 dark:text-white">Recent Results</h3>
                </div>
                <div class="divide-y divide-gray-100 dark:divide-gray-700/50">
                    @forelse($recentResults as $result)
                        <div class="px-5 py-3 flex items-center justify-between">
                            <div class="min-w-0">
                                <p class="text-sm font-medium text-gray-900 dark:text-white truncate">{{ $result->exam->title }}</p>
                                <p class="text-xs text-gray-500 dark:text-gray-400">{{ $result->created_at->diffForHumans() }}</p>
                            </div>
                            <span class="ml-3 shrink-0 px-2 py-0.5 rounded-md text-xs font-bold {{ $result->is_passed ? 'bg-emerald-50 text-emerald-700' : 'bg-red-50 text-red-700' }}">
                                {{ $result->percentage }}%
                            </span>
                        </div>
                    @empty
                        <div class="px-5 py-6 text-center text-sm text-gray-500 dark:text-gray-400">No results yet</div>
                    @endforelse
                </div>
            </div>
        </div>
    </div>
</div>

@push('scripts')
@if($performanceData->count() > 0)
<script>
    new Chart(document.getElementById('studentPerfChart'), {
        type: 'line',
        data: {
            labels: @json($performanceData->map(fn($r) => $r->exam->title)),
            datasets: [{
                label: 'Score %',
                data: @json($performanceData->map(fn($r) => $r->percentage)),
                borderColor: '#6366f1',
                backgroundColor: 'rgba(99, 102, 241, 0.1)',
                fill: true,
                tension: 0.4,
                pointRadius: 4,
                pointBackgroundColor: '#6366f1',
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: { legend: { display: false } },
            scales: {
                y: { beginAtZero: true, max: 100, grid: { color: '#f3f4f6' } },
                x: { display: false }
            }
        }
    });
</script>
@endif
@endpush
@endsection