@extends('layouts.app')

@section('content')
<div class="container-fluid py-4">
    <div class="row mb-4">
        <div class="col-12">
            <h1 class="fw-bold text-primary mb-3">
                <i class="fas fa-tachometer-alt me-2"></i>
                Dashboard Admin
            </h1>
            <div class="btn-group mb-4">
                <a href="{{ route('departments.index') }}" class="btn btn-primary me-2">
                    <i class="fas fa-building me-2"></i>Kelola Bidang
                </a>
                <a href="{{ route('sessions.index') }}" class="btn btn-info me-2 text-white">
                    <i class="fas fa-layer-group me-2"></i>Kelola Seksi
                </a>
                <a href="{{ route('interns.index') }}" class="btn btn-success me-2">
                    <i class="fas fa-users me-2"></i>Kelola Peserta Magang
                </a>
            </div>
        </div>
    </div>

    <div class="row g-4">
        <!-- Quick Stats Cards -->
        <div class="col-md-6 col-lg-3">
            <div class="card border-0 shadow-sm h-100 bg-primary bg-opacity-10">
                <div class="card-body p-4">
                    <div class="d-flex align-items-center">
                        <div class="bg-white rounded-circle p-3 me-3">
                            <i class="fas fa-building text-primary fa-2x"></i>
                        </div>
                        <div>
                            <h3 class="mb-1 fw-bold">{{ $stats['totalDepartments'] }}</h3>
                            <h6 class="text-muted mb-0">Total Bidang</h6>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-md-6 col-lg-3">
            <div class="card border-0 shadow-sm h-100 bg-info bg-opacity-10">
                <div class="card-body p-4">
                    <div class="d-flex align-items-center">
                        <div class="bg-white rounded-circle p-3 me-3">
                            <i class="fas fa-layer-group text-info fa-2x"></i>
                        </div>
                        <div>
                            <h3 class="mb-1 fw-bold">12</h3>
                            <h6 class="text-muted mb-0">Total Seksi</h6>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-md-6 col-lg-3">
            <div class="card border-0 shadow-sm h-100 bg-success bg-opacity-10">
                <div class="card-body p-4">
                    <div class="d-flex align-items-center">
                        <div class="bg-white rounded-circle p-3 me-3">
                            <i class="fas fa-users text-success fa-2x"></i>
                        </div>
                        <div>
                            <h3 class="mb-1 fw-bold">24</h3>
                            <h6 class="text-muted mb-0">Total Kuota</h6>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-md-6 col-lg-3">
            <div class="card border-0 shadow-sm h-100 bg-warning bg-opacity-10">
                <div class="card-body p-4">
                    <div class="d-flex align-items-center">
                        <div class="bg-white rounded-circle p-3 me-3">
                            <i class="fas fa-user-graduate text-warning fa-2x"></i>
                        </div>
                        <div>
                            <h3 class="mb-1 fw-bold">{{ $stats['availableSlots'] }}</h3>
                            <h6 class="text-muted mb-0">Slot Tersedia</h6>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <div class="row g-4 mt-2">
        <div class="col-lg-8">
            <div class="card border-0 shadow-sm">
                <div class="card-header bg-gradient-primary-to-secondary text-white py-3">
                    <h5 class="mb-0"><i class="fas fa-chart-pie me-2"></i>Statistik Seksi Magang</h5>
                </div>
                <div class="card-body">
                    <canvas id="sessionsChart" height="300"></canvas>
                </div>
            </div>
        </div>

        <div class="col-lg-4">
            <div class="card border-0 shadow-sm">
                <div class="card-header bg-gradient-primary-to-secondary text-white py-3">
                    <h5 class="mb-0"><i class="fas fa-list me-2"></i>Seksi Aktif</h5>
                </div>
                <div class="card-body p-0">
                    <div class="list-group list-group-flush">
                        @forelse($activeSessions as $session)
                        <div class="list-group-item p-3">
                            <div class="d-flex justify-content-between align-items-center">
                                <div>
                                    <h6 class="mb-1">{{ $session->name }}</h6>
                                    <small class="text-muted">{{ $session->department->name }}</small>
                                    
                                </div>
                                <div class="text-end">
                                    <span class="badge bg-{{ $session->interns_count >= $session->max_interns ? 'danger' : 'success' }}">
                                        {{ $session->max_interns - $session->interns()->where('status', 'active')->count() }} Slot
                                    </span>
                                    @php
                                        $pendingCount = $session->interns()->where('status', 'pending')->count();
                                    @endphp
                                    @if($pendingCount > 0)
                                        <div class="text-warning small mt-1">
                                            <i class="fas fa-clock me-1"></i>{{ $pendingCount }} Menunggu
                                        </div>
                                    @endif
                                    <div class="text-muted small mt-1">
                                        {{ $session->interns()->where('status', 'active')->count() }}/{{ $session->max_interns }}
                                    </div>
                                </div>
                            </div>
                        </div>
                        @empty
                        <div class="list-group-item p-4 text-center">
                            <i class="fas fa-info-circle text-muted mb-2 fa-2x"></i>
                            <p class="text-muted mb-0">Tidak ada sesi aktif saat ini</p>
                        </div>
                        @endforelse
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<style>
.card {
    border-radius: 10px;
    transition: all 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1) !important;
}
.bg-gradient-primary-to-secondary {
    background: linear-gradient(45deg, #4e73df, #2c9faf);
}
.card-header {
    border-radius: 10px 10px 0 0 !important;
}
.bg-opacity-10 {
    --bs-bg-opacity: 0.1;
}
</style>

<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {
    const ctx = document.getElementById('sessionsChart').getContext('2d');
    new Chart(ctx, {
        type: 'doughnut',
        data: {
            labels: Object.keys({!! json_encode($monthlyStats) !!}),
            datasets: [{
                data: Object.values({!! json_encode($monthlyStats) !!}),
                backgroundColor: Array(Object.keys({!! json_encode($monthlyStats) !!}).length).fill().map((_, i) => {
                    const colors = [
                        '#FF6384', '#36A2EB', '#4BC0C0', '#9966FF', 
                        '#FFCE56', '#FF9F40', '#45B7D1', '#96CDEF',
                        '#FF8A80', '#A5D6A7', '#BA68C8', '#FFB74D'
                    ];
                    return colors[i % 12];
                }),
                borderWidth: 1,
                borderColor: '#ffffff'
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: {
                legend: {
                    display: true,
                    position: 'right'
                },
                tooltip: {
                    callbacks: {
                        label: function(context) {
                            return `${context.label}: ${context.raw} peserta`;
                        }
                    }
                }
            },
            cutout: '60%'
        }
    });
});
</script>
@endsection