dress/app/Http/Controllers/AnalysisController.php

<?php

namespace App\Http\Controllers;

use App\Enums\OrderChannel;
use App\Enums\OrderStatus;
use App\Enums\PaymentMethod;
use App\Models\Expense;
use App\Models\Order;
use App\Models\OrderItem;
use App\Models\Purchase;
use Illuminate\Support\Facades\DB;
use Inertia\Inertia;

class AnalysisController extends Controller
{
    public function __invoke()
    {
        $stats = [
            'total_sales' => $this->getStats(fn() => Order::count()),
            'total_revenue' => $this->getStats(fn() => Order::sum('total')),
            'total_expenses' => $this->getStats(fn() => Expense::sum('amount')),
            'cogs' => $this->getStats(fn() => Order::sum('hpp')),
            'total_discount' => $this->getStats(fn() => Order::sum('discount')),
            'total_purchases' => $this->getStats(fn() => Purchase::sum('total')),
            'products_sold' => $this->getStats(fn() => OrderItem::sum('qty')),
            'total_customers' => $this->getStats(fn() => Order::distinct('customer_name')->count('customer_name')),
        ];

        $stats['aov'] = $this->calculateAov($stats['total_revenue'], $stats['total_sales']);
        $stats['gross_profit'] = $this->calculateDiff($stats['total_revenue'], $stats['cogs']);
        $stats['net_profit'] = $this->calculateDiff($stats['gross_profit'], $stats['total_expenses']);
        $stats['profit_margin'] = $this->calculateMargin($stats['net_profit'], $stats['total_revenue']);

        // Revenue vs Purchases per month (this year)
        $revenueByMonth = DB::table('orders')
            ->select(
                DB::raw('MONTH(created_at) as month'),
                DB::raw('SUM(total) as total')
            )
            ->groupBy(DB::raw('MONTH(created_at)'))
            ->get();

        $purchasesByMonth = DB::table('purchases')
            ->select(
                DB::raw('MONTH(created_at) as month'),
                DB::raw('SUM(total) as total')
            )
            ->groupBy(DB::raw('MONTH(created_at)'))
            ->get();

        $monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'Mei', 'Jun', 'Jul', 'Agu', 'Sep', 'Okt', 'Nov', 'Des'];

        $salesByMonth = collect(range(1, 12))->map(function ($month) use ($revenueByMonth, $purchasesByMonth, $monthNames) {
            $revenueFound = $revenueByMonth->firstWhere('month', $month);
            $purchasesFound = $purchasesByMonth->firstWhere('month', $month);

            return [
                'month' => $monthNames[$month - 1],
                'sales' => $revenueFound ? (float) $revenueFound->total : 0,
                'purchase' => $purchasesFound ? (float) $purchasesFound->total : 0,
            ];
        });

        $paymentMethods = DB::table('orders')
            ->select('payment_method as name', DB::raw('COUNT(*) as total'))
            ->groupBy('payment_method')
            ->get()
            ->map(function ($item) {
                if ($item->name) {
                    $item->name = PaymentMethod::tryFrom($item->name)?->label() ?? $item->name;
                }

                return $item;
            });

        $orderStatuses = DB::table('orders')
            ->select('order_status as name', DB::raw('COUNT(*) as total'))
            ->groupBy('order_status')
            ->get()
            ->map(function ($item) {
                if ($item->name) {
                    $item->name = OrderStatus::tryFrom($item->name)?->label() ?? $item->name;
                }

                return $item;
            });

        $orderChannels = DB::table('orders')
            ->select('order_channel as name', DB::raw('COUNT(*) as total'))
            ->groupBy('order_channel')
            ->get()
            ->map(function ($item) {
                if ($item->name) {
                    $item->name = OrderChannel::tryFrom($item->name)?->label() ?? $item->name;
                }

                return $item;
            });

        $topProducts = DB::table('order_items')
            ->join('products', 'order_items.product_id', '=', 'products.id')
            ->select('products.name as name', DB::raw('SUM(order_items.qty) as total'))
            ->groupBy('products.name')
            ->orderByDesc('total')
            ->limit(5)
            ->get();

        $topCustomers = DB::table('orders')
            ->select('customer_name as name', DB::raw('SUM(total) as total'))
            ->whereNotNull('customer_name')
            ->groupBy('customer_name')
            ->orderByDesc('total')
            ->limit(5)
            ->get();

        $ordersByHourRaw = DB::table('orders')
            ->select(
                DB::raw('HOUR(created_at) as hour'),
                DB::raw('COUNT(*) as total')
            )
            ->groupBy(DB::raw('HOUR(created_at)'))
            ->get();

        $ordersByHour = collect(range(0, 23))->map(function ($hour) use ($ordersByHourRaw) {
            $found = $ordersByHourRaw->firstWhere('hour', $hour);

            return [
                'hour' => str_pad($hour, 2, '0', STR_PAD_LEFT) . ':00',
                'total' => $found ? (int) $found->total : 0,
            ];
        });

        return Inertia::render('analysis', [
            'stats' => $stats,
            'salesByMonth' => $salesByMonth,
            'ordersByHour' => $ordersByHour,
            'paymentMethods' => $paymentMethods,
            'orderStatuses' => $orderStatuses,
            'orderChannels' => $orderChannels,
            'topProducts' => $topProducts,
            'topCustomers' => $topCustomers,
        ]);
    }

    private function getStats(callable $callback): array
    {
        $value = $callback();

        return [
            'value' => $value,
            'yesterday' => null,
            'change' => null,
        ];
    }

    private function calculateAov($revenue, $sales): array
    {
        $value = $sales['value'] > 0 ? $revenue['value'] / $sales['value'] : 0;

        return [
            'value' => $value,
            'yesterday' => null,
            'change' => null,
        ];
    }

    private function calculateDiff($a, $b): array
    {
        return [
            'value' => $a['value'] - $b['value'],
            'yesterday' => null,
            'change' => null,
        ];
    }

    private function calculateMargin($profit, $revenue): array
    {
        $value = $revenue['value'] > 0 ? ($profit['value'] / $revenue['value']) * 100 : 0;

        return [
            'value' => round($value, 2),
            'yesterday' => null,
            'change' => null,
        ];
    }
}