<?php

namespace Examyou\LaravelInstaller\Helpers;

class PermissionsChecker
{
	/**
	 * @var array
	 */
	protected $results = [];

	/**
	 * Set the result array permissions and errors.
	 *
	 * @return mixed
	 */
	public function __construct()
	{
		$this->results['permissions'] = [];

		$this->results['errors'] = null;
	}

	/**
	 * Check for the folders permissions.
	 *
	 * @param array $folders
	 * @return array
	 */
	public function check(array $folders)
	{
		foreach ($folders as $folder => $permission) {
			if (!($this->getPermission($folder) >= $permission)) {
				$this->addFileAndSetErrors($folder, $permission, false);
			} else {
				$this->addFile($folder, $permission, true);
			}
		}

		return $this->results;
	}

	/**
	 * Get a folder permission.
	 *
	 * @param $folder
	 * @return string
	 */
	private function getPermission($folder)
	{
		return substr(sprintf('%o', fileperms(base_path($folder))), -4);
	}

	/**
	 * Add the file to the list of results.
	 *
	 * @param $folder
	 * @param $permission
	 * @param $isSet
	 */
	private function addFile($folder, $permission, $isSet)
	{
		array_push($this->results['permissions'], [
			'folder' => $folder,
			'permission' => $permission,
			'isSet' => $isSet
		]);
	}

	/**
	 * Add the file and set the errors.
	 *
	 * @param $folder
	 * @param $permission
	 * @param $isSet
	 */
	private function addFileAndSetErrors($folder, $permission, $isSet)
	{
		$this->addFile($folder, $permission, $isSet);

		$this->results['errors'] = true;
	}
}