<?php

namespace App\Filament\Widgets;

use App\Models\Donation;
use Filament\Widgets\ChartWidget;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Carbon;

class DonationChartWidget extends ChartWidget
{
    protected static ?string $heading = 'Daily Donations — Last 30 Days';

    protected static ?int $sort = 2;

    protected int | string | array $columnSpan = 'full';

    protected static ?string $maxHeight = '220px';

    protected function getData(): array
    {
        $confirmedScope = fn (Builder $q) => $q->whereNotNull('confirmed_at');
        $days = collect(range(29, 0))->map(fn ($i) => now()->subDays($i)->format('Y-m-d'));

        $donations = Donation::whereHas('donationConfirmation', $confirmedScope)
            ->where('created_at', '>=', now()->subDays(30)->startOfDay())
            ->selectRaw('DATE(created_at) as date, SUM(amount) / 100 as total')
            ->groupByRaw('DATE(created_at)')
            ->pluck('total', 'date');

        return [
            'datasets' => [
                [
                    'label' => 'Revenue (£)',
                    'data' => $days->map(fn ($d) => round($donations[$d] ?? 0, 2))->toArray(),
                    'borderColor' => '#10b981',
                    'backgroundColor' => 'rgba(16, 185, 129, 0.1)',
                    'fill' => true,
                    'tension' => 0.3,
                ],
            ],
            'labels' => $days->map(fn ($d) => Carbon::parse($d)->format('d M'))->toArray(),
        ];
    }

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