<?php

declare(strict_types=1);

/**
 * @author Robert Strutts
 * @copyright (c) 2026, Robert Strutts
 * @license MIT
 */

namespace IOcornerstone\Framework;

use IOcornerstone\Framework\Enum\CompressionMethod as Method;

final class GzCompression
{

    public function __construct(
            public Method $method = Method::DEFLATE,
            public int $compressionLevel = 4,
            public bool $useCompression = true
    )
    {}

    public function compress(string $data): string|false
    {
        if ($this->useCompression === false) {
            return false;
        }

        $level = ($this->compressionLevel < 10 && $this->compressionLevel > 0) ? $this->compressionLevel : 4;

        $c = match ($this->method) {
            Method::DEFLATE => gzdeflate($data, $level),
            Method::GZIP => gzencode($data, $level),
            Method::ZLIB => gzcompress($data, $level),
        };
        return base64_encode($c);
    }

    public function decompress(string $compressed_data): string|false
    {
        if ($this->useCompression === false) {
            return false;
        }
        $d = base64_decode($compressed_data);
        return match ($this->method) {
            Method::DEFLATE => gzinflate($d),
            Method::GZIP => gzdecode($d),
            Method::ZLIB => gzuncompress($d),
        };
    }
}