<?php

namespace Modules\Marketplace\Services;

use Illuminate\Support\Arr;
use Illuminate\Validation\ValidationException;

final class PackageManifest
{
    public function parse(array|string $manifest): array
    {
        if (is_string($manifest)) {
            $decoded = json_decode($manifest, true);
            if (! is_array($decoded)) {
                throw ValidationException::withMessages(['manifest' => 'The package manifest is not valid JSON.']);
            }
            $manifest = $decoded;
        }
        foreach (['name', 'type', 'version'] as $field) {
            if (! filled(Arr::get($manifest, $field))) {
                throw ValidationException::withMessages(['manifest' => "Manifest field [$field] is required."]);
            }
        }
        if (! in_array($manifest['type'], config('marketplace.supported_types', []), true)) {
            throw ValidationException::withMessages(['manifest' => 'Unsupported marketplace package type.']);
        }
        $manifest['requires'] = $manifest['requires'] ?? [];
        $manifest['content_manager'] = $manifest['content_manager'] ?? '*';
        $manifest['laravel'] = $manifest['laravel'] ?? '*';

        return $manifest;
    }

    public function fromFile(string $path): array
    {
        return $this->parse((string) file_get_contents($path));
    }
}