<?php

namespace App\Shared\Storage\Services;

use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Storage;
use InvalidArgumentException;

class TemporaryUrlService
{
    protected const REFRESH_MARGIN_SECONDS = 60;

    /**
     * @return array{temporary_url: string, temporary_url_expires_at: string}
     */
    public function generate(string $path, int $expiresInMinutes = 10): array
    {
        if ($expiresInMinutes < 1) {
            throw new InvalidArgumentException('The temporary URL expiration must be at least one minute.');
        }

        $cacheTtlInSeconds = max(
            1,
            ($expiresInMinutes * 60) - self::REFRESH_MARGIN_SECONDS,
        );

        return Cache::remember(
            $this->cacheKey($path, $expiresInMinutes),
            now()->addSeconds($cacheTtlInSeconds),
            function () use ($path, $expiresInMinutes): array {
                $expiresAt = now()->addMinutes($expiresInMinutes);

                return [
                    'temporary_url' => Storage::disk('s3')->temporaryUrl(
                        $path,
                        $expiresAt,
                        [
                            'ResponseCacheControl' => 'private, max-age='.($expiresInMinutes * 60),
                        ],
                    ),
                    'temporary_url_expires_at' => $expiresAt->toIso8601String(),
                ];
            },
        );
    }

    public function forget(string $path, int $expiresInMinutes = 10): void
    {
        Cache::forget($this->cacheKey($path, $expiresInMinutes));
    }

    protected function cacheKey(string $path, int $expiresInMinutes): string
    {
        return sprintf(
            's3:temporary-url:%s:%d',
            hash('sha256', $path),
            $expiresInMinutes,
        );
    }
}