Additional/app/Filament/Widgets/RevenueChart.php

<?php

namespace App\Filament\Widgets;

use App\Models\Order;
use Filament\Widgets\ChartWidget;
use Illuminate\Support\Facades\DB;

class RevenueChart extends ChartWidget
{
    protected ?string $heading = 'Revenue (Last 7 Days)';
    
    protected static ?int $sort = 3;

    protected function getData(): array
    {
        $data = Order::where('payment_status', 'paid')
            ->where('created_at', '>=', now()->subDays(7))
            ->select(
                DB::raw('DATE(created_at) as date'),
                DB::raw('SUM(total) as revenue')
            )
            ->groupBy('date')
            ->orderBy('date')
            ->get();

        $labels = [];
        $revenues = [];

        // Fill in last 7 days
        for ($i = 6; $i >= 0; $i--) {
            $date = now()->subDays($i)->format('Y-m-d');
            $dayName = now()->subDays($i)->format('D');
            $labels[] = $dayName;
            
            $dayData = $data->firstWhere('date', $date);
            $revenues[] = $dayData ? $dayData->revenue : 0;
        }

        return [
            'datasets' => [
                [
                    'label' => 'Revenue (R)',
                    'data' => $revenues,
                    'backgroundColor' => 'rgba(59, 130, 246, 0.1)',
                    'borderColor' => 'rgb(59, 130, 246)',
                    'fill' => true,
                ],
            ],
            'labels' => $labels,
        ];
    }

    protected function getType(): string
    {
        return 'line';
    }

    protected function getOptions(): array
    {
        return [
            'scales' => [
                'y' => [
                    'beginAtZero' => true,
                ],
            ],
        ];
    }
}