<?php
// src/Knowledge/Retrieval/ChunkIndexLoader.php

declare(strict_types=1);

namespace App\Knowledge\Retrieval;

final class ChunkIndexLoader
{
    public function __construct(
        private string $indexPath
    ) {}

    public function load(): array
    {
        if (!is_file($this->indexPath)) {
            return [];
        }

        $json = file_get_contents($this->indexPath);
        $data = $json ? json_decode($json, true) : null;

        return is_array($data) ? $data : [];
    }
}