<?php

namespace App\Service;

use Exception;

/**
 *
 */
class Config
{
    private array $config;

    /**
     * @throws Exception
     */
    public function __construct()
    {
        $configFile = dirname(path: __DIR__, levels: 2) . "/config.json.local";
        if (!file_exists(filename: $configFile)) {
            $configFile = dirname(path: __DIR__, levels: 2) . "/config.json";
        }

        if (!file_exists(filename: $configFile)) {
            throw new Exception(message: 'Missing config file');
        }
        $configJSON = file_get_contents(filename: $configFile);

        if (json_decode(json: $configJSON) === null) {
            throw new Exception(message: 'Config file is not valid JSON.');
        }

        $this->config = json_decode(json: $configJSON, associative: true);
    }

    public function getConfig(string $configKey): string
    {
        return $this->config[$configKey];
    }
}