<?php

namespace Configula\Util;

use Generator;

/**
 * Configula Utilities Class
 *
 * @author Casey McLaughlin <caseyamcl@gmail.com>
 */
class ArrayUtils
{
    /**
     * Flatten and iterate
     *
     * @param  array  $array
     * @param  string $delimiter
     * @param  string $basePath
     * @return Generator
     */
    public static function flattenAndIterate(array $array, string $delimiter = '.', string $basePath = ''): Generator
    {
        foreach ($array as $key => $value) {
            $fullKey = implode($delimiter, array_filter([$basePath, $key]));
            if (is_array($value)) {
                yield from static::flattenAndIterate($value, $delimiter, $fullKey);
            } else {
                yield $fullKey => $value;
            }
        }
    }

    /**
     * Merge configuration arrays
     *
     * What I would wish that array_merge_recursive actually does.
     *
     * This is a cascading merge, with individual values being overwritten.
     * From: http://www.php.net/manual/en/function.array-merge-recursive.php#102379
     *
     * @param  array $arr1 Array #1
     * @param  array $arr2 Array #2
     * @return array
     */
    public static function merge(array $arr1, array $arr2): array
    {
        foreach ($arr2 as $key => $value) {
            if (array_key_exists($key, $arr1) && is_array($value) && is_array($arr1[$key])) {
                $arr1[$key] = static::merge($arr1[$key], $arr2[$key]);
            } else {
                $arr1[$key] = $value;
            }
        }

        return $arr1;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTc4MDQyMTUwNzg3NDYzNSA0NTI4NTc2OTg4NzkzOTMzIDYwOTI2NzAzNzcyNzE0NTM=