<?php

namespace ByJG\AnyDataset\Lists;

use ByJG\AnyDataset\Core\GenericIterator;
use ByJG\AnyDataset\Core\IteratorFilter;
use ByJG\AnyDataset\Core\Row;
use InvalidArgumentException;

class ArrayDatasetIterator extends GenericIterator
{
	/** @var array */
	protected $rows;

	/**
	 * Enter description here...
	 *
	 * @var array
	 */
	protected $keys;

	/** /* @var int */
	protected $index;

	/** @var Row */
	protected $currentRow;

	/** @var IteratorFilter */
	protected $filter;


	/**
	 * @param array $rows
	 * @param IteratorFilter $filter
	 */
	public function __construct($rows, $filter)
	{
		if (!is_array($rows)) {
		    throw new InvalidArgumentException("ArrayDatasetIterator must receive an array");
		}
		$this->index = 0;
		$this->currentRow = null;
		$this->rows = $rows;
		$this->keys = array_keys($rows);
		$this->filter = $filter;
	}


	/**
	 * @return int
	 */
	public function count()
	{
		return count($this->rows);
	}


	/**
	 * @return bool
	 * @throws \ByJG\Serializer\Exception\InvalidArgumentException
	 */
	public function hasNext()
	{
		if (!empty($this->currentRow)) {
		    return true;
		}

		$ix = $this->index++;

		if ($ix >= count($this->rows)) {
		    return false;
		}

		$key = $this->keys[$ix];
		$cols = $this->rows[$key];

		$arr = [];
		$arr["__id"] = $ix;
		$arr["__key"] = $key;
		foreach ($cols as $key => $value) {
		    $arr[strtolower($key)] = $value;
		}

		$row = new Row($arr);

		if (empty($this->filter) || $this->filter->match([$row])) {
		    $this->currentRow = $row;
		    return true;
		}

		return $this->hasNext();
	}


	/**
	 * @return Row
	 * @throws \ByJG\Serializer\Exception\InvalidArgumentException
	 */
	public function moveNext()
	{
		if (!$this->hasNext()) {
		    return null;
		}

		$row = $this->currentRow;
		$this->currentRow = null;

		return $row;
	}


	public function key()
	{
		return $this->index;
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Mzc4ODgzMTMyNjIwMzQ1OSA1OTczNjQ1Mzk2OTMzNzU5IDIxMzc1NjY4NDM2NTUwNjA=