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

@section('content')
<div class="fade-in">
    <!-- Page Header -->
    <div class="mb-8">
        <h1 class="text-2xl font-bold text-gray-900 dark:text-white">Dashboard</h1>
        <p class="text-gray-500 dark:text-gray-400 mt-1">Overview of your examination system</p>
    </div>

    <!-- Stats Grid -->
    <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 mb-8">
        @php
            $stats = [
                ['label' => 'Total Users', 'value' => $widgets['total_users'], 'icon' => 'M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0z', 'color' => 'primary'],
                ['label' => 'Students', 'value' => $widgets['total_students'], 'icon' => 'M12 14l9-5-9-5-9 5 9 5z M12 14l6.16-3.422a12.083 12.083 0 01.665 6.479A11.952 11.952 0 0012 20.055a11.952 11.952 0 00-6.824-2.998 12.078 12.078 0 01.665-6.479L12 14z', 'color' => 'emerald'],
                ['label' => 'Exams', 'value' => $widgets['total_exams'], '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 2', 'color' => 'amber'],
                ['label' => 'Active Exams', 'value' => $widgets['active_exams'], 'icon' => 'M13 10V3L4 14h7v7l9-11h-7z', 'color' => 'rose'],
            ];
        @endphp

        @foreach($stats as $stat)
            <div class="bg-white dark:bg-gray-800 rounded-xl p-5 border border-gray-200 dark:border-gray-700 shadow-sm hover:shadow-md transition-shadow">
                <div class="flex items-center justify-between">
                    <div>
                        <p class="text-sm font-medium text-gray-500 dark:text-gray-400">{{ $stat['label'] }}</p>
                        <p class="text-2xl font-bold text-gray-900 dark:text-white mt-1">{{ number_format($stat['value']) }}</p>
                    </div>
                    <div class="w-10 h-10 rounded-lg bg-{{ $stat['color'] }}-50 dark:bg-{{ $stat['color'] }}-900/20 flex items-center justify-center">
                        <svg class="w-5 h-5 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>
            </div>
        @endforeach
    </div>

    <!-- Charts Row -->
    <div class="grid grid-cols-1 lg:grid-cols-2 gap-6 mb-8">
        <!-- Monthly Participation -->
        <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-5">
            <h3 class="text-sm font-semibold text-gray-900 dark:text-white mb-4">Monthly Exam Participation</h3>
            <canvas id="participationChart" height="200"></canvas>
        </div>

        <!-- Performance Trends -->
        <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-5">
            <h3 class="text-sm font-semibold text-gray-900 dark:text-white mb-4">Average Performance Trend (%)</h3>
            <canvas id="performanceChart" height="200"></canvas>
        </div>
    </div>

    <!-- Bottom Row -->
    <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
        <!-- Recent Activity -->
        <div class="lg:col-span-2 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="text-sm font-semibold text-gray-900 dark:text-white">Recent Activity</h3>
                <a href="{{ route('admin.audit-logs.index') }}" 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($recentActivities as $activity)
                    <div class="px-5 py-3 flex items-start gap-3">
                        <div class="w-8 h-8 rounded-full bg-gray-100 dark:bg-gray-700 flex items-center justify-center shrink-0 mt-0.5">
                            <span class="text-xs font-bold text-gray-600 dark:text-gray-300 uppercase">{{ substr($activity->user?->first_name ?? 'S', 0, 1) }}</span>
                        </div>
                        <div class="flex-1 min-w-0">
                            <p class="text-sm text-gray-800 dark:text-gray-200">{{ $activity->description }}</p>
                            <p class="text-xs text-gray-500 dark:text-gray-400 mt-0.5">{{ $activity->created_at->diffForHumans() }} @if($activity->ip_address) · {{ $activity->ip_address }} @endif</p>
                        </div>
                    </div>
                @empty
                    <div class="px-5 py-8 text-center text-sm text-gray-500 dark:text-gray-400">No recent activity</div>
                @endforelse
            </div>
        </div>

        <!-- Quick Stats -->
        <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm p-5">
            <h3 class="text-sm font-semibold text-gray-900 dark:text-white mb-4">Quick Stats</h3>
            <div class="space-y-4">
                <div class="flex items-center justify-between">
                    <span class="text-sm text-gray-500 dark:text-gray-400">Pending Grading</span>
                    <span class="text-sm font-bold text-amber-600">{{ $widgets['pending_grading'] }}</span>
                </div>
                <div class="w-full bg-gray-200 dark:bg-gray-700 rounded-full h-2">
                    <div class="bg-amber-500 h-2 rounded-full" style="width: {{ min(100, $widgets['pending_grading'] * 5) }}%"></div>
                </div>

                <div class="flex items-center justify-between pt-2">
                    <span class="text-sm text-gray-500 dark:text-gray-400">Pass Rate</span>
                    <span class="text-sm font-bold text-emerald-600">{{ $widgets['pass_rate'] }}%</span>
                </div>
                <div class="w-full bg-gray-200 dark:bg-gray-700 rounded-full h-2">
                    <div class="bg-emerald-500 h-2 rounded-full" style="width: {{ $widgets['pass_rate'] }}%"></div>
                </div>

                <div class="flex items-center justify-between pt-2">
                    <span class="text-sm text-gray-500 dark:text-gray-400">Completed Today</span>
                    <span class="text-sm font-bold text-primary-600">{{ $widgets['completed_exams_today'] }}</span>
                </div>

                <div class="flex items-center justify-between pt-2">
                    <span class="text-sm text-gray-500 dark:text-gray-400">Courses</span>
                    <span class="text-sm font-bold text-gray-900 dark:text-white">{{ $widgets['total_courses'] }}</span>
                </div>

                <div class="flex items-center justify-between pt-2">
                    <span class="text-sm text-gray-500 dark:text-gray-400">Teachers</span>
                    <span class="text-sm font-bold text-gray-900 dark:text-white">{{ $widgets['total_teachers'] }}</span>
                </div>
            </div>
        </div>
    </div>
</div>

@push('scripts')
<script>
    // Monthly Participation Chart
    new Chart(document.getElementById('participationChart'), {
        type: 'bar',
        data: {
            labels: @json($examParticipation['labels']),
            datasets: [{
                label: 'Attempts',
                data: @json($examParticipation['values']),
                backgroundColor: '#6366f1',
                borderRadius: 6,
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: { legend: { display: false } },
            scales: {
                y: { beginAtZero: true, grid: { color: '#f3f4f6' } },
                x: { grid: { display: false } }
            }
        }
    });

    // Performance Trend Chart
    new Chart(document.getElementById('performanceChart'), {
        type: 'line',
        data: {
            labels: @json($performanceTrends['labels']),
            datasets: [{
                label: 'Avg Score %',
                data: @json($performanceTrends['values']),
                borderColor: '#10b981',
                backgroundColor: 'rgba(16, 185, 129, 0.1)',
                fill: true,
                tension: 0.4,
                pointRadius: 4,
                pointBackgroundColor: '#10b981',
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: { legend: { display: false } },
            scales: {
                y: { beginAtZero: true, max: 100, grid: { color: '#f3f4f6' } },
                x: { grid: { display: false } }
            }
        }
    });
</script>
@endpush
@endsection