<?php

class Config
{
    private array $config = [];
    private array $channels = [];

    public function __construct(
        string $configFile,
        string $channelsFile
    ) {
        if (file_exists($configFile)) {
            $this->config = json_decode(file_get_contents($configFile), true) ?? [];
        }

        if (file_exists($channelsFile)) {
            $this->channels = json_decode(file_get_contents($channelsFile), true) ?? [];
        }
    }

    public function get(string $key, mixed $default = null): mixed
    {
        return $this->config[$key] ?? $default;
    }

    public function getChannels(): array
    {
        return $this->channels;
    }

    public function saveChannels(array $channels): void
    {
        file_put_contents(
            '/var/www/config/channels.json',
            json_encode($channels, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE)
        );
    }
}