@extends('layouts.app')

@section('content')
    <div class="mb-6">
        <h1 class="text-title-md font-semibold text-gray-800 dark:text-white/90">{{ __('Dashboard') }}</h1>
        <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Overview of your inventory and sales performance.') }}</p>
    </div>

    <div class="grid grid-cols-1 gap-6 md:grid-cols-2 xl:grid-cols-4">
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Products') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">{{ $productCount }}</h3>
            <p class="mt-1 text-xs text-gray-500">{{ __('Active') }}: {{ $activeProductCount }}</p>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Orders') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">{{ $orderCount }}</h3>
            <p class="mt-1 text-xs text-gray-500">{{ __('Pending') }}: {{ $pendingOrders }}</p>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Stock movements') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">{{ $movementCount }}</h3>
            <p class="mt-1 text-xs text-gray-500">{{ __('Today orders') }}: {{ $todayOrders }}</p>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Sales this month') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">
                {{ number_format($monthSales, 2) }} {{ config('stockiny.currency') }}
            </h3>
            <p class="mt-1 text-xs text-gray-500">{{ __('AOV') }}: {{ number_format($averageOrderValueMonth, 2) }} {{ config('stockiny.currency') }}</p>
        </div>
    </div>

    <div class="mt-6 grid grid-cols-1 gap-6 md:grid-cols-2 xl:grid-cols-4">
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Sales today') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">
                {{ number_format($todaySales, 2) }} {{ config('stockiny.currency') }}
            </h3>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Sales this year') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">
                {{ number_format($yearSales, 2) }} {{ config('stockiny.currency') }}
            </h3>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Inventory units') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">{{ number_format($inventoryUnits) }}</h3>
            <p class="mt-1 text-xs text-gray-500">{{ __('Out of stock') }}: {{ $outOfStockCount }}</p>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Inventory value') }}</p>
            <h3 class="mt-2 text-2xl font-semibold text-gray-800 dark:text-white/90">
                {{ number_format($inventoryValue, 2) }} {{ config('stockiny.currency') }}
            </h3>
            <p class="mt-1 text-xs text-gray-500">{{ __('Low stock items') }}: {{ $lowStockCount }}</p>
        </div>
    </div>

    <div class="mt-8 rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
        <div class="mb-4 flex flex-wrap items-start justify-between gap-3">
            <div>
                <h3 class="text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Month comparison') }}</h3>
                <p class="text-sm text-gray-500 dark:text-gray-400">{{ __('Compare two months by fulfilled sales.') }}</p>
            </div>
            <form method="GET" action="{{ route('app.dashboard') }}" class="flex flex-wrap items-center gap-2">
                <select name="compare_a" class="h-10 rounded-lg border border-gray-200 bg-white px-3 text-sm text-gray-700 dark:border-gray-700 dark:bg-gray-800 dark:text-gray-200">
                    @foreach ($compareOptions as $key => $label)
                        <option value="{{ $key }}" @selected($compareA === $key)>{{ $label }}</option>
                    @endforeach
                </select>
                <span class="text-sm text-gray-500">{{ __('vs') }}</span>
                <select name="compare_b" class="h-10 rounded-lg border border-gray-200 bg-white px-3 text-sm text-gray-700 dark:border-gray-700 dark:bg-gray-800 dark:text-gray-200">
                    @foreach ($compareOptions as $key => $label)
                        <option value="{{ $key }}" @selected($compareB === $key)>{{ $label }}</option>
                    @endforeach
                </select>
                <button class="h-10 rounded-lg border border-gray-300 px-4 text-sm font-medium text-gray-700 hover:bg-gray-50 dark:border-gray-700 dark:text-gray-200">
                    {{ __('Apply') }}
                </button>
            </form>
        </div>
        <div class="grid grid-cols-1 gap-4 md:grid-cols-3">
            <div class="rounded-lg border border-gray-100 p-4 dark:border-gray-800">
                <p class="text-xs uppercase tracking-wide text-gray-500">{{ __('Month A') }}</p>
                <p class="mt-2 text-lg font-semibold text-gray-800 dark:text-white/90">{{ number_format($compareATotal, 2) }} {{ config('stockiny.currency') }}</p>
            </div>
            <div class="rounded-lg border border-gray-100 p-4 dark:border-gray-800">
                <p class="text-xs uppercase tracking-wide text-gray-500">{{ __('Month B') }}</p>
                <p class="mt-2 text-lg font-semibold text-gray-800 dark:text-white/90">{{ number_format($compareBTotal, 2) }} {{ config('stockiny.currency') }}</p>
            </div>
            <div class="rounded-lg border border-gray-100 p-4 dark:border-gray-800">
                <p class="text-xs uppercase tracking-wide text-gray-500">{{ __('Difference') }}</p>
                <p class="mt-2 text-lg font-semibold {{ $compareDelta < 0 ? 'text-red-500' : 'text-green-600' }}">
                    {{ $compareDelta < 0 ? '-' : '+' }}{{ number_format(abs($compareDelta), 2) }} {{ config('stockiny.currency') }}
                </p>
                <p class="mt-1 text-xs text-gray-500">
                    @if ($compareDeltaPct === null)
                        {{ __('Percent change unavailable (previous month is 0).') }}
                    @else
                        {{ $compareDeltaPct < 0 ? '-' : '+' }}{{ number_format(abs($compareDeltaPct), 2) }}%
                    @endif
                </p>
            </div>
        </div>
        <div class="mt-4 h-2 overflow-hidden rounded-full bg-gray-100 dark:bg-gray-800">
            <div class="h-full rounded-full bg-brand-500" style="width: {{ min(max($fulfillmentRate, 0), 100) }}%"></div>
        </div>
        <p class="mt-2 text-xs text-gray-500">
            {{ __('Fulfilled this month') }}: {{ $fulfilledThisMonth }} / {{ $ordersThisMonth }} ({{ number_format($fulfillmentRate, 1) }}%)
        </p>
    </div>

    <div class="mt-6 grid grid-cols-1 gap-6 xl:grid-cols-2">
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <h3 class="mb-4 text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Sales trend (last 12 months)') }}</h3>
            <div id="sales-trend-chart" class="h-80"></div>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <h3 class="mb-4 text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Yearly sales') }}</h3>
            <div id="yearly-sales-chart" class="h-80"></div>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <h3 class="mb-4 text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Top stock products') }}</h3>
            <div id="stock-level-chart" class="h-80"></div>
        </div>
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <h3 class="mb-4 text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Order status distribution') }}</h3>
            <div id="order-status-chart" class="h-80"></div>
        </div>
    </div>

    <div class="mt-8 grid grid-cols-1 gap-6 lg:grid-cols-2">
        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <div class="mb-4 flex items-center justify-between">
                <h3 class="text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Top selling products (this month)') }}</h3>
                <a href="{{ route('orders.index') }}" class="text-sm text-brand-500 hover:text-brand-600">{{ __('View orders') }}</a>
            </div>
            <div class="overflow-x-auto">
                <table class="w-full text-left text-sm text-gray-600 dark:text-gray-400">
                    <thead class="text-xs uppercase text-gray-400 dark:text-gray-500">
                        <tr>
                            <th class="py-2">{{ __('Stock') }}</th>
                            <th class="py-2">{{ __('Product') }}</th>
                            <th class="py-2 text-right">{{ __('Qty sold') }}</th>
                            <th class="py-2 text-right">{{ __('Sales') }}</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse ($topSellingProducts as $item)
                            <tr class="border-t border-gray-100 dark:border-gray-800">
                                <td class="py-2">{{ $item->product?->sku ?? '—' }}</td>
                                <td class="py-2">{{ $item->product?->name ?? '—' }}</td>
                                <td class="py-2 text-right">{{ (int) $item->sold_qty }}</td>
                                <td class="py-2 text-right">{{ number_format((float) $item->sold_total, 2) }} {{ config('stockiny.currency') }}</td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="4" class="py-4 text-center text-gray-500">{{ __('No fulfilled sales this month.') }}</td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>

        <div class="rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
            <div class="mb-4 flex items-center justify-between">
                <h3 class="text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Low stock') }}</h3>
                <a href="{{ route('products.index') }}" class="text-sm text-brand-500 hover:text-brand-600">{{ __('View all') }}</a>
            </div>
            <div class="overflow-x-auto">
                <table class="w-full text-left text-sm text-gray-600 dark:text-gray-400">
                    <thead class="text-xs uppercase text-gray-400 dark:text-gray-500">
                    <tr>
                        <th class="py-2">{{ __('Stock') }}</th>
                        <th class="py-2">{{ __('Product') }}</th>
                        <th class="py-2 text-right">{{ __('On hand') }}</th>
                    </tr>
                    </thead>
                    <tbody>
                        @forelse ($lowStockProducts as $product)
                            <tr class="border-t border-gray-100 dark:border-gray-800">
                                <td class="py-2">{{ $product->sku }}</td>
                                <td class="py-2">{{ $product->name }}</td>
                                <td class="py-2 text-right">{{ $product->quantity_on_hand }}</td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="3" class="py-4 text-center text-gray-500">{{ __('All products are above minimum stock.') }}</td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>
    </div>

    <div class="mt-6 rounded-2xl border border-gray-200 bg-white p-5 shadow-theme-xs dark:border-gray-800 dark:bg-gray-900">
        <div class="mb-4 flex items-center justify-between">
            <h3 class="text-lg font-semibold text-gray-800 dark:text-white/90">{{ __('Recent movements') }}</h3>
            <a href="{{ route('stock.index') }}" class="text-sm text-brand-500 hover:text-brand-600">{{ __('View all') }}</a>
        </div>
        <div class="space-y-3">
            @forelse ($recentMovements as $movement)
                <div class="flex items-center justify-between rounded-lg border border-gray-100 p-3 dark:border-gray-800">
                    <div>
                        <p class="text-sm font-medium text-gray-800 dark:text-white/90">{{ $movement->product->name }}</p>
                        <p class="text-xs text-gray-500">{{ __(\Illuminate\Support\Str::headline($movement->type)) }} · {{ $movement->occurred_at->translatedFormat('M d, Y H:i') }}</p>
                    </div>
                    <span class="text-sm font-semibold {{ $movement->type === 'out' ? 'text-red-500' : 'text-green-500' }}">
                        {{ $movement->type === 'out' ? '-' : '+' }}{{ $movement->quantity }}
                    </span>
                </div>
            @empty
                <p class="text-sm text-gray-500">{{ __('No stock movement yet.') }}</p>
            @endforelse
        </div>
    </div>
@endsection

@push('scripts')
    <script>
        document.addEventListener('DOMContentLoaded', async () => {
            const ApexCharts = typeof window.ensureApexCharts === 'function'
                ? await window.ensureApexCharts()
                : window.ApexCharts;

            if (!ApexCharts) {
                return;
            }

            const currency = @json(config('stockiny.currency'));
            const monthLabels = @json($monthLabels);
            const monthData = @json($monthData);
            const yearLabels = @json($yearLabels);
            const yearData = @json($yearData);
            const stockLabels = @json($stockChartLabels);
            const stockData = @json($stockChartData);
            const orderStatusLabels = @json($orderStatusLabels);
            const orderStatusData = @json($orderStatusData);

            const salesTrendEl = document.querySelector('#sales-trend-chart');
            if (salesTrendEl) {
                new ApexCharts(salesTrendEl, {
                    chart: {
                        type: 'line',
                        height: 320,
                        toolbar: { show: false }
                    },
                    series: [{
                        name: @json(__('Sales')),
                        data: monthData
                    }],
                    stroke: {
                        width: 3,
                        curve: 'smooth'
                    },
                    colors: ['#2563eb'],
                    xaxis: {
                        categories: monthLabels,
                        labels: { rotate: -35 }
                    },
                    yaxis: {
                        labels: {
                            formatter: (value) => `${Number(value).toFixed(0)} ${currency}`
                        }
                    },
                    tooltip: {
                        y: {
                            formatter: (value) => `${Number(value).toFixed(2)} ${currency}`
                        }
                    },
                    grid: {
                        borderColor: '#e5e7eb'
                    }
                }).render();
            }

            const yearlySalesEl = document.querySelector('#yearly-sales-chart');
            if (yearlySalesEl) {
                new ApexCharts(yearlySalesEl, {
                    chart: {
                        type: 'bar',
                        height: 320,
                        toolbar: { show: false }
                    },
                    series: [{
                        name: @json(__('Sales')),
                        data: yearData
                    }],
                    colors: ['#16a34a'],
                    plotOptions: {
                        bar: {
                            borderRadius: 6,
                            columnWidth: '45%'
                        }
                    },
                    dataLabels: { enabled: false },
                    xaxis: {
                        categories: yearLabels
                    },
                    yaxis: {
                        labels: {
                            formatter: (value) => `${Number(value).toFixed(0)} ${currency}`
                        }
                    },
                    tooltip: {
                        y: {
                            formatter: (value) => `${Number(value).toFixed(2)} ${currency}`
                        }
                    },
                    grid: {
                        borderColor: '#e5e7eb'
                    }
                }).render();
            }

            const stockLevelEl = document.querySelector('#stock-level-chart');
            if (stockLevelEl) {
                new ApexCharts(stockLevelEl, {
                    chart: {
                        type: 'bar',
                        height: 320,
                        toolbar: { show: false }
                    },
                    series: [{
                        name: @json(__('On hand')),
                        data: stockData
                    }],
                    colors: ['#ea580c'],
                    plotOptions: {
                        bar: {
                            horizontal: true,
                            borderRadius: 4,
                            barHeight: '65%'
                        }
                    },
                    dataLabels: { enabled: false },
                    xaxis: {
                        categories: stockLabels,
                        labels: {
                            formatter: (value) => `${Number(value).toFixed(0)}`
                        }
                    },
                    grid: {
                        borderColor: '#e5e7eb'
                    }
                }).render();
            }

            const orderStatusEl = document.querySelector('#order-status-chart');
            if (orderStatusEl && orderStatusLabels.length > 0) {
                new ApexCharts(orderStatusEl, {
                    chart: {
                        type: 'donut',
                        height: 320
                    },
                    labels: orderStatusLabels,
                    series: orderStatusData,
                    colors: ['#0ea5e9', '#22c55e', '#f59e0b', '#ef4444', '#8b5cf6', '#64748b'],
                    legend: {
                        position: 'bottom'
                    },
                    dataLabels: {
                        enabled: true
                    }
                }).render();
            }
        });
    </script>
@endpush