<?php

declare(strict_types=1);

namespace App\Filament\Widgets;

use App\Models\Repository;
use Filament\Widgets\ChartWidget;

class LanguagesChart extends ChartWidget
{
    protected static ?int $sort = 4;

    public function getHeading(): string
    {
        return __('panel.widgets.languages_chart');
    }

    protected function getData(): array
    {
        $languages = Repository::query()
            ->publiclyVisible()
            ->whereNotNull('primary_language')
            ->groupBy('primary_language')
            ->selectRaw('primary_language, COUNT(*) as count')
            ->orderByDesc('count')
            ->limit(10)
            ->get();

        return [
            'datasets' => [
                [
                    'label' => __('panel.widgets.languages.repositories'),
                    'data' => $languages->pluck('count')->toArray(),
                    'backgroundColor' => [
                        '#3b82f6',
                        '#10b981',
                        '#f59e0b',
                        '#ef4444',
                        '#8b5cf6',
                        '#ec4899',
                        '#14b8a6',
                        '#f97316',
                        '#6366f1',
                        '#06b6d4',
                    ],
                    'borderColor' => '#fff',
                    'borderWidth' => 2,
                ],
            ],
            'labels' => $languages->pluck('primary_language')->map(fn ($lang) => ucfirst($lang ?? 'Other'))->toArray(),
        ];
    }

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

    protected function getOptions(): array
    {
        return [
            'plugins' => [
                'legend' => [
                    'position' => 'bottom',
                ],
            ],
        ];
    }

    public static function canView(): bool
    {
        return auth()->user()?->can('projects.view_any') ?? false;
    }
}