<?php

namespace ctiso;
use ctiso\File,
    Exception;

class Registry {
    private array $namespace = [];

    function importFile(string $namespace, ?string $filePath = null) {
        $data = json_decode(File::getContents($filePath), true);
        $data['_file'] = $filePath;
        $this->namespace[$namespace] = [
            'path' => $filePath,
            'data' => $data
        ];
    }

    function importArray(string $namespace, array $data = []) {
        if (isset($this->namespace[$namespace])) {
            $data = array_merge($this->namespace[$namespace]['data'], $data);
        }
        $this->namespace[$namespace] = [
            'path' => null,
            'data' => $data
        ];
    }

    public function get(string $ns, string $key) {
        if (isset($this->namespace[$ns]['data'][$key])) {
            return $this->namespace[$ns]['data'][$key];
        }
        throw new Exception('Unknown key ' . $ns . '::' . $key);
    }

    public function getOpt(string $ns, string $key) {
        if (isset($this->namespace[$ns]['data'][$key])) {
            return $this->namespace[$ns]['data'][$key];
        }
        return null;
    }

    public function has(string $ns, string $key): bool {
        return isset($this->namespace[$ns]['data'][$key]);
    }

    function set(string $ns, string $key, mixed $value): void {
        $this->namespace[$ns]['data'][$key] = $value;
    }
}