<?php

class Config implements ArrayAccess
{
    private string $path;

    public function asArray(): array
    {
        return $this->data;
    }

    public function fromArray($a)
    {
        $this->data = $a;
    }

    public function __construct()
    {
        $this->path = dirname(__DIR__) . "/config.json";
    }

    public function read(): void
    {
        $this->data = @json_decode(@file_get_contents($this->path), true);
        if ($this->data == null) {
            throw new RuntimeException("Failed to read or parse config file");
        }
    }

    public function save(): void
    {
        file_put_contents($this->path, json_encode($this->data,JSON_PRETTY_PRINT));
    }

    private mixed $data = [];


    public function offsetExists(mixed $offset): bool
    {
        return isset($this->data[$offset]);
    }

    public function offsetGet(mixed $offset): mixed
    {
        return $this->data[$offset];
    }

    public function offsetSet(mixed $offset, mixed $value): void
    {
        $this->data[$offset] = $value;
    }

    public function offsetUnset(mixed $offset): void
    {
        unset($this->data[$offset]);
    }
}