@extends('components.app-layout')
@section('title', $exam->title . ' - Exam Details')

@section('content')
<div class="fade-in max-w-4xl mx-auto">
    <!-- Back Link -->
    <a href="{{ url()->previous() }}" class="inline-flex items-center gap-1.5 text-sm text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 mb-4 transition-colors">
        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"/></svg>
        Back
    </a>

    <!-- Exam Header -->
    <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-6 lg:p-8 mb-6">
        <div class="flex flex-col lg:flex-row lg:items-start lg:justify-between gap-4">
            <div>
                <span class="inline-block px-2.5 py-0.5 rounded-full text-xs font-medium bg-primary-50 dark:bg-primary-900/20 text-primary-700 dark:text-primary-400 mb-3">{{ $exam->type_label }}</span>
                <h1 class="text-2xl font-bold text-gray-900 dark:text-white">{{ $exam->title }}</h1>
                <p class="text-gray-500 dark:text-gray-400 mt-1">{{ $exam->course->title }}</p>
            </div>
            
            @if($canTake)
                <form action="{{ route('student.exams.start', $exam) }}" method="POST" class="shrink-0">
                    @csrf
                    @if($exam->access_mode === 'password_protected')
                        <div class="mb-3">
                            <input type="password" name="access_password" placeholder="Enter access password" required
                                   class="w-full px-3 py-2 rounded-lg border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-800 text-gray-900 dark:text-white text-sm focus:ring-2 focus:ring-primary-500">
                        </div>
                    @endif
                    <button type="submit" class="w-full lg:w-auto px-6 py-2.5 bg-primary-600 hover:bg-primary-700 text-white font-semibold rounded-lg transition-colors focus:ring-4 focus:ring-primary-500/30">
                        Start Exam
                    </button>
                </form>
            @else
                <div class="shrink-0 px-4 py-2 bg-gray-100 dark:bg-gray-700 rounded-lg text-sm text-gray-500 dark:text-gray-400">
                    @if($remainingAttempts <= 0)
                        Max attempts reached
                    @elseif($exam->isUpcoming())
                        Available {{ $exam->start_time->diffForHumans() }}
                    @elseif($exam->isPast())
                        Exam has ended
                    @else
                        Not available
                    @endif
                </div>
            @endif
        </div>
    </div>

    <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
        <!-- Main Info -->
        <div class="lg:col-span-2 space-y-6">
            <!-- Instructions -->
            @if($exam->instructions)
                <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-6">
                    <h3 class="font-semibold text-gray-900 dark:text-white mb-3">Instructions</h3>
                    <div class="prose dark:prose-invert prose-sm max-w-none text-gray-600 dark:text-gray-300">
                        {!! nl2br(e($exam->instructions)) !!}
                    </div>
                </div>
            @endif

            <!-- Exam Settings -->
            <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-6">
                <h3 class="font-semibold text-gray-900 dark:text-white mb-4">Exam Details</h3>
                <div class="grid grid-cols-2 gap-4">
                    @php
                        $details = [
                            ['label' => 'Duration', 'value' => $exam->duration_minutes > 0 ? $exam->duration_minutes . ' minutes' : 'Unlimited'],
                            ['label' => 'Questions', 'value' => $exam->question_count],
                            ['label' => 'Total Marks', 'value' => $exam->total_marks],
                            ['label' => 'Passing Score', 'value' => $exam->passing_percentage . '%'],
                            ['label' => 'Max Attempts', 'value' => $exam->max_attempts > 0 ? $exam->max_attempts : 'Unlimited'],
                            ['label' => 'Remaining', 'value' => $remainingAttempts === PHP_INT_MAX ? 'Unlimited' : $remainingAttempts],
                            ['label' => 'Randomized', 'value' => $exam->randomize_questions ? 'Yes' : 'No'],
                            ['label' => 'Review Allowed', 'value' => $exam->allow_review ? 'Yes' : 'No'],
                        ];
                    @endphp
                    @foreach($details as $detail)
                        <div>
                            <p class="text-xs text-gray-500 dark:text-gray-400">{{ $detail['label'] }}</p>
                            <p class="text-sm font-medium text-gray-900 dark:text-white">{{ $detail['value'] }}</p>
                        </div>
                    @endforeach
                </div>
            </div>

            <!-- Previous Attempts -->
            @if($previousAttempts->count() > 0)
                <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-6">
                    <h3 class="font-semibold text-gray-900 dark:text-white mb-3">Your Previous Attempts</h3>
                    <div class="space-y-3">
                        @foreach($previousAttempts as $attempt)
                            <div class="flex items-center justify-between p-3 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
                                <div>
                                    <p class="text-sm font-medium text-gray-900 dark:text-white">Attempt #{{ $attempt->attempt_number }}</p>
                                    <p class="text-xs text-gray-500 dark:text-gray-400">{{ $attempt->ended_at?->format('M d, Y H:i') ?? 'In progress' }}</p>
                                </div>
                                @if($attempt->result && $attempt->result_published)
                                    <span class="px-2 py-1 rounded text-xs font-bold {{ $attempt->result->is_passed ? 'bg-emerald-50 text-emerald-700 dark:bg-emerald-900/20 dark:text-emerald-400' : 'bg-red-50 text-red-700 dark:bg-red-900/20 dark:text-red-400' }}">
                                        {{ $attempt->result->percentage }}%
                                    </span>
                                @else
                                    <span class="text-xs text-gray-400">Pending</span>
                                @endif
                            </div>
                        @endforeach
                    </div>
                </div>
            @endif
        </div>

        <!-- Sidebar -->
        <div class="space-y-6">
            <!-- Timing Info -->
            <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-3">Timing</h3>
                <div class="space-y-3">
                    @if($exam->is_always_open)
                        <div class="flex items-center gap-2 text-sm">
                            <svg class="w-4 h-4 text-emerald-500" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
                            <span class="text-gray-600 dark:text-gray-300">Always open</span>
                        </div>
                    @else
                        @if($exam->start_time)
                            <div class="flex items-center gap-2 text-sm">
                                <svg class="w-4 h-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z"/></svg>
                                <div>
                                    <span class="text-gray-500 dark:text-gray-400">Opens</span>
                                    <span class="text-gray-900 dark:text-white ml-1">{{ $exam->start_time->format('M d, Y H:i') }}</span>
                                </div>
                            </div>
                        @endif
                        @if($exam->end_time)
                            <div class="flex items-center gap-2 text-sm">
                                <svg class="w-4 h-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
                                <div>
                                    <span class="text-gray-500 dark:text-gray-400">Closes</span>
                                    <span class="text-gray-900 dark:text-white ml-1">{{ $exam->end_time->format('M d, Y H:i') }}</span>
                                </div>
                            </div>
                        @endif
                    @endif
                </div>
            </div>

            <!-- Security Settings -->
            <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-3">Security</h3>
                <div class="space-y-2.5">
                    @php
                        $securityItems = [
                            ['label' => 'Proctoring', 'enabled' => $exam->enable_proctoring],
                            ['label' => 'Fullscreen Required', 'enabled' => $exam->fullscreen_required],
                            ['label' => 'Tab Switch Detection', 'enabled' => $exam->tab_switch_detection],
                        ];
                    @endphp
                    @foreach($securityItems as $item)
                        <div class="flex items-center justify-between text-sm">
                            <span class="text-gray-600 dark:text-gray-300">{{ $item['label'] }}</span>
                            <span class="text-xs font-medium {{ $item['enabled'] ? 'text-emerald-600 dark:text-emerald-400' : 'text-gray-400' }}">
                                {{ $item['enabled'] ? 'Enabled' : 'Disabled' }}
                            </span>
                        </div>
                    @endforeach
                </div>
            </div>
        </div>
    </div>
</div>
@endsection