<?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:----MTE3MjQyMjEyMTc0MjM0MCA0NzExNTE2NDgzMTI3MzMyIDcyMzM3NDY1NzgxNzg0NDM=