<?php

declare(strict_types=1);

namespace App\Services\Academy;

use App\Models\AcademyContentMetricDaily;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Carbon;
use Illuminate\Support\Collection;

final class AcademyPopularityService
{
    /**
     * @param  array<string, int|float|null>  $metrics
     */
    public function calculatePopularityScore(array $metrics): float
    {
        return round(
            ((float) ($metrics['unique_visitors'] ?? 0) * 1)
            + ((float) ($metrics['engaged_views'] ?? 0) * 3)
            + ((float) ($metrics['likes'] ?? 0) * 5)
            + ((float) ($metrics['saves'] ?? 0) * 7)
            + ((float) ($metrics['prompt_copies'] ?? 0) * 8)
            + ((float) ($metrics['negative_prompt_copies'] ?? 0) * 4)
            + ((float) ($metrics['starts'] ?? 0) * 4)
            + ((float) ($metrics['completions'] ?? 0) * 10)
            + ((float) ($metrics['upgrade_clicks'] ?? 0) * 15)
            + ((float) ($metrics['premium_preview_views'] ?? 0) * 3)
            - ((float) ($metrics['bounce_count'] ?? 0) * 2),
            2,
        );
    }

    /**
     * @param  array<string, int|float|null>  $metrics
     */
    public function calculateConversionScore(array $metrics): float
    {
        $uniqueVisitors = max(1, (int) ($metrics['unique_visitors'] ?? 0));

        return round((((float) ($metrics['upgrade_clicks'] ?? 0) * 100) / $uniqueVisitors), 2);
    }

    public function queryBetween(Carbon $from, Carbon $to): Builder
    {
        return AcademyContentMetricDaily::query()
            ->whereBetween('date', [$from->copy()->startOfDay(), $to->copy()->endOfDay()]);
    }

    public function topContent(Carbon $from, Carbon $to, int $limit = 10): Collection
    {
        return $this->queryBetween($from, $to)
            ->selectRaw('content_type, content_id, sum(views) as views, sum(unique_visitors) as unique_visitors, sum(engaged_views) as engaged_views, sum(likes) as likes, sum(saves) as saves, sum(prompt_copies) as prompt_copies, sum(completions) as completions, sum(upgrade_clicks) as upgrade_clicks, sum(popularity_score) as popularity_score')
            ->groupBy('content_type', 'content_id')
            ->orderByDesc('popularity_score')
            ->limit($limit)
            ->get();
    }
}