<?php

namespace NoccyLabs\PulseAudio\Sink;

use NoccyLabs\PulseAudio\PulseAudio;
use NoccyLabs\PulseAudio\Helper\Pacmd;
use ArrayAccess;
use ArrayIterator;
use IteratorAggregate;
use Countable;

class SinkInputList implements ArrayAccess, IteratorAggregate, Countable
{
    protected $inputs = [];

    protected $pulse;
    
    public function __construct(PulseAudio $pulse)
    {
        $this->pulse = $pulse;
        $inputs = Pacmd::query("list-sink-inputs");
        foreach ($inputs as $index=>$input) {
            $this->inputs[] = new SinkInput($pulse, $index, $input);
        }
    }

    public function createSink($name)
    {

    }

    public function destroySink($id)
    {}

    public function getIterator()
    {
        return new ArrayIterator($this->inputs);
    }

    public function offsetGet($key)
    {
        foreach ($this->inputs as $input) {
            if (($input->getIndex() == $key) || ($input->getName()==$key)) {
                return $input;
            }
        }
        return null;
    }

    public function offsetSet($key, $value)
    {}

    public function offsetUnset($key)
    {}

    public function offsetExists($key)
    {
        return array_key_exists($key, $this->inputs);
    }

    public function count()
    {
        return count($this->inputs);
    }

}