<?php

namespace Modules\Marketplace\Services;

final class VersionConstraint
{
    public function matches(string $version, string $constraint): bool
    {
        $constraint = trim($constraint);
        if ($constraint === '' || $constraint === '*') {
            return true;
        }
        foreach (preg_split('/\s*\|\|\s*/', $constraint) ?: [] as $alternative) {
            $ok = true;
            foreach (preg_split('/\s*,?\s+/', trim($alternative)) ?: [] as $part) {
                if ($part === '') {
                    continue;
                }
                if (str_starts_with($part, '^')) {
                    $base = substr($part, 1);
                    $major = (int) explode('.', $base)[0];
                    $ok = $ok && version_compare($version, $base, '>=') && version_compare($version, ($major + 1).'.0.0', '<');

                    continue;
                }
                if (str_starts_with($part, '~')) {
                    $base = substr($part, 1);
                    $bits = array_pad(explode('.', $base), 3, '0');
                    $upper = $bits[0].'.'.((int) $bits[1] + 1).'.0';
                    $ok = $ok && version_compare($version, $base, '>=') && version_compare($version, $upper, '<');

                    continue;
                }
                if (preg_match('/^(>=|<=|>|<|=)?\s*([0-9][0-9A-Za-z.\-+]*)$/', $part, $m)) {
                    $ok = $ok && version_compare($version, $m[2], $m[1] ?: '=');
                } else {
                    $ok = $ok && $version === $part;
                }
            }
            if ($ok) {
                return true;
            }
        }

        return false;
    }
}