CondorcetPHP\Condorcet\ElectionProcess\VoteUtil

Complexity

Total Complexity

16

Size/Duplication

Total Lines	82
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Test Coverage

Coverage

97.37%

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
B	tagsConvert()	0	31	7
A	getRankingAsString()	0	11	3
A	convertVoteInput()	0	15	3
A	parseAnalysingOneLine()	0	18	3

<?php
/*
    Condorcet PHP - Election manager and results calculator.
    Designed for the Condorcet method. Integrating a large number of algorithms extending Condorcet. Expandable for all types of voting systems.

    By Julien Boudry and contributors - MIT LICENSE (Please read LICENSE.txt)
    https://github.com/julien-boudry/Condorcet
*/
declare(strict_types=1);

namespace CondorcetPHP\Condorcet\ElectionProcess;


use CondorcetPHP\Condorcet\CondorcetException;


// Base Condorcet class
abstract class VoteUtil
{
    public static function tagsConvert ($tags) : ?array
    {
        if (empty($tags)) :
            return null;
        endif;

        if (is_string($tags)) :
            $tags = explode(',', $tags);
        elseif (is_array($tags)) :
            foreach ($tags as $key => &$oneTag) :
                if (!is_string($oneTag)) :
                    throw new CondorcetException(17);
                endif;
            endforeach;
        else :
            throw new CondorcetException(17);
        endif;

        $tags = array_map('trim', $tags);

        array_walk(
            $tags, 
            function (string $oneTag) : void {
               if (empty($oneTag)) :
                    throw new CondorcetException(17);
                endif;
            }
        );

        return $tags;
    }

    public static function getRankingAsString (array $ranking) : string
    {
        foreach ($ranking as &$rank) :
            if (is_array($rank)) :
                sort($rank);
                $rank = implode(' = ',$rank);
            endif;
        endforeach;

        return implode(' > ', $ranking);
    }

    // From a string like 'A>B=C=H>G=T>Q'
    public static function convertVoteInput (string $formula) : array
    {
        $ranking = explode('>', $formula);

        foreach ($ranking as &$rank_vote) :
            $rank_vote = explode('=', $rank_vote);

            // Del space at start and end
            foreach ($rank_vote as &$value) :
                $value = trim($value);
            endforeach;
        endforeach;

        return $ranking;
    }

    public static function parseAnalysingOneLine ($searchCharacter, string &$line) : int
    {
        if ($searchCharacter !== false) :
            $value = trim( substr($line, $searchCharacter + 1) );

            // Errors
            if ( !is_numeric($value) ) :
                throw new CondorcetException(13, null);
            endif;

            // Reformat line
            $line = substr($line, 0, $searchCharacter);

            return intval($value);
        else :
            return 1;
        endif;
    }
}