<?php

namespace App\Dashboard\Stats;

use App\Enums\PublishStatusEnum;
use App\Models\RouteArticle;
use App\Support\DateRange;

class PublishSuccessRate extends DailySeriesStat
{
    public function key(): string
    {
        return 'publish-success-rate';
    }

    public function label(): string
    {
        return 'Publish Success Rate';
    }

    protected function series(DateRange $range, array $days): SeriesResult
    {
        // Buckets follow updated_at, so a retry re-dates its article to the retry day.
        $attempts = RouteArticle::query()
            ->toBase()
            ->whereBetween('updated_at', [$range->from, $range->to])
            ->whereIn('publish_status', PublishStatusEnum::settledValues())
            ->selectRaw(
                'DATE(updated_at) as bucket, COUNT(*) as total, SUM(CASE WHEN publish_status = ? THEN 1 ELSE 0 END) as published',
                [PublishStatusEnum::PUBLISHED->value],
            )
            ->groupBy('bucket')
            ->get()
            ->keyBy('bucket');

        $values = array_map(
            function (string $day) use ($attempts): ?float {
                $attempt = $attempts->get($day);

                if ($attempt === null || (int) $attempt->total === 0) {
                    return null;
                }

                return round(((int) $attempt->published / (int) $attempt->total) * 100, 1);
            },
            $days,
        );

        return new SeriesResult($days, [
            new Series('Publish Success Rate', $values, zeroIsMeaningful: true),
        ]);
    }
}