Vote::current() - Code Metrics - Inspection of "Various 1.7 release preparation." - julien-boudry/Condorcet - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — master (fa2fc5)

by Boudry

created 2018-05-26 09:13 UTC

Vote::current() A

↳ Parent: Vote

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	3
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0
crap	1

<?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 Condorcet;


use Condorcet\ElectionProcess\VoteUtil;


class Vote implements \Iterator
{
    use Linkable, CondorcetVersion;

    // Implement Iterator

        private $position = 1;

        public function rewind() : void {
            $this->position = 1;
        }

        public function current() {
            return $this->getRanking()[$this->position];
        }

        public function key() : int {
            return $this->position;
        }

        public function next() : void {
            ++$this->position;
        }

        public function valid() : bool {
            return isset($this->getRanking()[$this->position]);
        }

    // Vote

    private $_ranking = [];

    private $_weight = 1;

    private $_tags = [];

    private $_hashCode;

        ///

    public function __construct ($ranking, $tags = null, ?float $ownTimestamp = null)
    {
        $tagsFromString = null;
        // Vote Weight
        if (is_string($ranking)) :
            $is_voteWeight = mb_strpos($ranking, '^');
            if ($is_voteWeight !== false) :
                $weight = intval( trim( substr($ranking, $is_voteWeight + 1) ) );
                $ranking = substr($ranking, 0,$is_voteWeight);

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

            $is_voteTags = mb_strpos($ranking, '||');
            if ($is_voteTags !== false) :
                $tagsFromString = explode(',', trim( substr($ranking, 0, $is_voteTags) ));
                $ranking = substr($ranking, $is_voteTags + 2);
            endif;
        endif;

        $this->setRanking($ranking, $ownTimestamp);
        $this->addTags($tags);
        $this->addTags($tagsFromString);

        if (isset($weight)) :
            $this->setWeight($weight);
        endif;
    }

    public function __sleep () : array
    {
        $this->position = 1;

        return array_keys(get_object_vars($this));
    }

    public function __clone ()
    {
        $this->destroyAllLink();
        $this->setHashCode();
    }

    public function __toString () : string {
        
        if (empty($this->getTags())) :
            return $this->getSimpleRanking();
        else :
            return $this->getTagsAsString().' || '.$this->getSimpleRanking();
        endif;
    }

    public function getHashCode () : string {
        return $this->_hashCode;
    }

        ///

    // GETTERS

    public function getRanking () : ?array
    {
        if (!empty($this->_ranking)) :
            return end($this->_ranking)['ranking'];
        else :
            return null;
        endif;
    }

    public function getHistory () : array
    {
        return $this->_ranking;
    }


    public function getTags () : array
    {
        return $this->_tags;
    }

    public function getTagsAsString () : string
    {
        return implode(',',$this->getTags());
    }

    public function getCreateTimestamp () : float
    {
        return $this->_ranking[0]['timestamp'];
    }

    public function getTimestamp () : float
    {
        return end($this->_ranking)['timestamp'];
    }

    public function countRankingCandidates () : int
    {
        return end($this->_ranking)['counter'];
    }

    public function getAllCandidates () : array
    {
        $list = [];

        foreach ($this->getRanking() as $rank) :
            foreach ($rank as $oneCandidate) :
                $list[] = $oneCandidate;
            endforeach;
        endforeach;

        return $list;
    }

    public function getContextualRanking (Election $election, bool $string = false) : array
    {
        if (!$this->haveLink($election)) :
            throw new CondorcetException(22);
        endif;

        $ranking = $this->getRanking();
        $present = $this->getAllCandidates();
        $newRanking = [];
        $candidates_list = $election->getCandidatesList(false);

        $nextRank = 1;
        $countContextualCandidate = 0;

        foreach ($ranking as $CandidatesInRanks) :
            foreach ($CandidatesInRanks as $candidate) :
                if ( $election->existCandidateId($candidate, true) ) :
                    $newRanking[$nextRank][] = $candidate;
                    $countContextualCandidate++;
                endif;
            endforeach;

            if (isset($newRanking[$nextRank])) :
                $nextRank++;
            endif;
        endforeach;

        if ($election->getImplicitRankingRule() && $countContextualCandidate < $election->countCandidates()) :
            $last_rank = [];
            foreach ($candidates_list as $oneCandidate) :
                if (!in_array($oneCandidate, $present, true)) :
                    $last_rank[] = $oneCandidate;
                endif;
            endforeach;

            $newRanking[] = $last_rank;
        endif;

        if ($string) :
            foreach ($newRanking as &$rank) :
                foreach ($rank as &$oneCandidate) :
                    $oneCandidate = (string) $oneCandidate;
                endforeach;
            endforeach;
        endif;

        return $newRanking;
    }

    public function getSimpleRanking (?Election $context = null) : string
    {
        $ranking = ($context) ? $this->getContextualRanking($context) : $this->getRanking();

        $simpleRanking = VoteUtil::getRankingAsString($ranking);

        if ($this->_weight > 1 && ( ($context && $context->isVoteWeightIsAllowed()) || $context === null )  ) :
            $simpleRanking .= " ^".$this->getWeight();
        endif;

        return $simpleRanking;
    }


    // SETTERS

    public function setRanking ($rankingCandidate, ?float $ownTimestamp = null) : bool
    {
        // Timestamp
        if ($ownTimestamp !== null) :
            if (!empty($this->_ranking) && $this->getTimestamp() >= $ownTimestamp) :
                throw new CondorcetException(21);
            endif;
        endif;

        // Ranking
        $candidateCounter = $this->formatRanking($rankingCandidate);

        $this->archiveRanking($rankingCandidate, $candidateCounter, $ownTimestamp);

        if (!empty($this->_link)) :
            try {
                foreach ($this->_link as &$link) :
                    $link->prepareModifyVote($this);
                endforeach;
            }
            catch (CondorcetException $e)
            {                
                array_pop($this->_ranking);

                throw new CondorcetException(18);
            }
        endif;

        $this->setHashCode();
        return true;
    }

        private function formatRanking (&$ranking) : int
        {
            if (is_string($ranking)) :
                $ranking = VoteUtil::convertVoteInput($ranking);
            endif;

            if (!is_array($ranking)) :
                throw new CondorcetException(5);
            endif;

            $ranking = array_filter($ranking, function ($key) {
                return is_numeric($key);
            }, ARRAY_FILTER_USE_KEY);

            ksort($ranking);
            
            $i = 1; $vote_r = [];
            foreach ($ranking as &$value) :
                if ( !is_array($value) ) :
                    $vote_r[$i] = [$value];
                else :
                    $vote_r[$i] = $value;
                endif;

                $i++;
            endforeach;

            $ranking = $vote_r;

            $counter = 0;
            $list_candidate = [];
            foreach ($ranking as &$line) :
                foreach ($line as &$Candidate) :
                    if ( !($Candidate instanceof Candidate) ) :
                        $Candidate = new Candidate ($Candidate);
                        $Candidate->setProvisionalState(true);
                    endif;

                    $counter++;

                // Check Duplicate

                    // Check objet reference AND check candidates name
                    if (!in_array($Candidate, $list_candidate)) :
                        $list_candidate[] = $Candidate;
                    else : 
                        throw new CondorcetException(5);
                    endif;

                endforeach;
            endforeach;

            return $counter;
        }


    public function removeCandidates (array $candidatesList) : bool
    {
        $ranking = $this->getRanking();

        if ($ranking === null) :
            return false;
        endif;

        $rankingCandidate = $this->getAllCandidates();

        $canRemove = false;
        foreach ($candidatesList as $oneCandidate) :
            if (in_array($oneCandidate, $rankingCandidate, false)) :
                $canRemove = true;
                break;
            endif;
        endforeach;

        if (!$canRemove) :
            return false;
        endif;

        foreach ($ranking as $rankingKey => &$rank) :
            foreach ($rank as $oneRankKey => $oneRankValue) :
                if (in_array($oneRankValue, $candidatesList, false)) :
                    unset($rank[$oneRankKey]);
                endif;
            endforeach;

            if (empty($rank)) :
                unset($ranking[$rankingKey]);
            endif;
        endforeach;

        $this->setRanking($ranking);

        return true;
    }


    public function addTags ($tags) : bool
    {
        if (is_object($tags) || is_bool($tags)) :
            throw new CondorcetException(17);
        endif;

        $tags = VoteUtil::tagsConvert($tags);

        if (empty($tags)) :
            return false;
        endif;


        foreach ($tags as $key => $tag) :
            if (is_numeric($tag)) :
                throw new CondorcetException(17);
            elseif (in_array($tag, $this->_tags, true)) :
                unset($tags[$key]);
            endif;
        endforeach;

        foreach ($tags as $tag) :
            $this->_tags[] = $tag;
        endforeach;

        $this->setHashCode();

        return true;
    }

    public function removeTags ($tags) : array
    {
        if (is_object($tags) || is_bool($tags)) :
            throw new CondorcetException(17);
        endif;

        $tags = VoteUtil::tagsConvert($tags);

        if (empty($tags)) :
            return [];
        endif;


        $rm = [];
        foreach ($tags as $key => $tag) :
            $tagK = array_search($tag, $this->_tags, true);

            if ($tagK === false) :
                unset($tags[$key]);
            else :
                $rm[] = $this->_tags[$tagK];
                unset($this->_tags[$tagK]);
            endif;
        endforeach;

        $this->setHashCode();
        return $rm;
    }

    public function removeAllTags () : bool
    {
        $this->removeTags($this->getTags());
        return true;
    }

    public function getWeight () : int
    {
        return $this->_weight;
    }

    public function setWeight (int $newWeight) : int
    {
        if ($newWeight < 1) :
            throw new CondorcetException(26);
        endif;

        $this->_weight = $newWeight;

        if (!empty($this->_link)) :
            foreach ($this->_link as &$link) :
                $link->setStateToVote();
            endforeach;
        endif;

        $this->setHashCode();

        return $this->getWeight();
    }

/////////// INTERNAL ///////////

    private function archiveRanking ($ranking, int $counter, ?float $ownTimestamp) : void
    {
        $this->_ranking[] = [   'ranking' => $ranking,
                                'timestamp' => ($ownTimestamp !== null) ? $ownTimestamp : microtime(true),
                                'counter' => $counter   ];

        $this->rewind();
    }

    private function setHashCode () : string
    {
        return $this->_hashCode = hash('sha224', ((string) $this) . microtime(false));
    }
}


1		<?php
2		/*
3		Condorcet PHP - Election manager and results calculator.
4		Designed for the Condorcet method. Integrating a large number of algorithms extending Condorcet. Expandable for all types of voting systems.
5
6		By Julien Boudry and contributors - MIT LICENSE (Please read LICENSE.txt)
7		https://github.com/julien-boudry/Condorcet
8		*/
9		declare(strict_types=1);
10
11		namespace Condorcet;
12
13
14		use Condorcet\ElectionProcess\VoteUtil;
15
16
17		class Vote implements \Iterator
18		{
19		use Linkable, CondorcetVersion;
20
21		// Implement Iterator
22
23		private $position = 1;
24
25	126	public function rewind() : void {
26	126	$this->position = 1;
27	126	}
28
29	115	public function current() {
30	115	return $this->getRanking()[$this->position];
31		}
32
33	115	public function key() : int {
34	115	return $this->position;
35		}
36
37	115	public function next() : void {
38	115	++$this->position;
39	115	}
40
41	115	public function valid() : bool {
42	115	return isset($this->getRanking()[$this->position]);
43		}
44
45		// Vote
46
47		private $_ranking = [];
48
49		private $_weight = 1;
50
51		private $_tags = [];
52
53		private $_hashCode;
54
55		///
56
57	126	public function __construct ($ranking, $tags = null, ?float $ownTimestamp = null)
58		{
59	126	$tagsFromString = null;
60		// Vote Weight
61	126	if (is_string($ranking)) :
62	109	$is_voteWeight = mb_strpos($ranking, '^');
63	109	if ($is_voteWeight !== false) :
64	1	$weight = intval( trim( substr($ranking, $is_voteWeight + 1) ) );
65	1	$ranking = substr($ranking, 0,$is_voteWeight);
66
67		// Errors
68	1	if ( !is_numeric($weight) ) :
69		throw new CondorcetException(13, null);
70		endif;
71		endif;
72
73	109	$is_voteTags = mb_strpos($ranking, '\|\|');
74	109	if ($is_voteTags !== false) :
75	4	$tagsFromString = explode(',', trim( substr($ranking, 0, $is_voteTags) ));
76	4	$ranking = substr($ranking, $is_voteTags + 2);
77		endif;
78		endif;
79
80	126	$this->setRanking($ranking, $ownTimestamp);
81	126	$this->addTags($tags);
82	126	$this->addTags($tagsFromString);
83
84	126	if (isset($weight)) :
85	1	$this->setWeight($weight);
86		endif;
87	126	}
88
89	2	public function __sleep () : array
90		{
91	2	$this->position = 1;
92
93	2	return array_keys(get_object_vars($this));
94		}
95
96	2	public function __clone ()
97		{
98	2	$this->destroyAllLink();
99	2	$this->setHashCode();
100	2	}
101
102	126	public function __toString () : string {
103
104	126	if (empty($this->getTags())) :
105	126	return $this->getSimpleRanking();
106		else :
107	15	return $this->getTagsAsString().' \|\| '.$this->getSimpleRanking();
108		endif;
109		}
110
111	1	public function getHashCode () : string {
112	1	return $this->_hashCode;
113		}
114
115		///
116
117		// GETTERS
118
119	126	public function getRanking () : ?array
120		{
121	126	if (!empty($this->_ranking)) :
122	126	return end($this->_ranking)['ranking'];
123		else :
124		return null;
125		endif;
126		}
127
128	3	public function getHistory () : array
129		{
130	3	return $this->_ranking;
131		}
132
133
134	126	public function getTags () : array
135		{
136	126	return $this->_tags;
137		}
138
139	15	public function getTagsAsString () : string
140		{
141	15	return implode(',',$this->getTags());
142		}
143
144	2	public function getCreateTimestamp () : float
145		{
146	2	return $this->_ranking[0]['timestamp'];
147		}
148
149	108	public function getTimestamp () : float
150		{
151	108	return end($this->_ranking)['timestamp'];
152		}
153
154	1	public function countRankingCandidates () : int
155		{
156	1	return end($this->_ranking)['counter'];
157		}
158
159	100	public function getAllCandidates () : array
160		{
161	100	$list = [];
162
163	100	foreach ($this->getRanking() as $rank) :
164	100	foreach ($rank as $oneCandidate) :
165	100	$list[] = $oneCandidate;
166		endforeach;
167		endforeach;
168
169	100	return $list;
170		}
171
172	99	public function getContextualRanking (Election $election, bool $string = false) : array
173		{
174	99	if (!$this->haveLink($election)) :
175		throw new CondorcetException(22);
176		endif;
177
178	99	$ranking = $this->getRanking();
179	99	$present = $this->getAllCandidates();
180	99	$newRanking = [];
181	99	$candidates_list = $election->getCandidatesList(false);
182
183	99	$nextRank = 1;
184	99	$countContextualCandidate = 0;
185
186	99	foreach ($ranking as $CandidatesInRanks) :
187	99	foreach ($CandidatesInRanks as $candidate) :
188	99	if ( $election->existCandidateId($candidate, true) ) :
189	99	$newRanking[$nextRank][] = $candidate;
190	99	$countContextualCandidate++;
191		endif;
192		endforeach;
193
194	99	if (isset($newRanking[$nextRank])) :
195	99	$nextRank++;
196		endif;
197		endforeach;
198
199	99	if ($election->getImplicitRankingRule() && $countContextualCandidate < $election->countCandidates()) :
200	44	$last_rank = [];
201	44	foreach ($candidates_list as $oneCandidate) :
202	44	if (!in_array($oneCandidate, $present, true)) :
203	44	$last_rank[] = $oneCandidate;
204		endif;
205		endforeach;
206
207	44	$newRanking[] = $last_rank;
208		endif;
209
210	99	if ($string) :
211	1	foreach ($newRanking as &$rank) :
212	1	foreach ($rank as &$oneCandidate) :
213	1	$oneCandidate = (string) $oneCandidate;
214		endforeach;
215		endforeach;
216		endif;
217
218	99	return $newRanking;
219		}
220
221	126	public function getSimpleRanking (?Election $context = null) : string
222		{
223	126	$ranking = ($context) ? $this->getContextualRanking($context) : $this->getRanking();
224
225	126	$simpleRanking = VoteUtil::getRankingAsString($ranking);
226
227	126	if ($this->_weight > 1 && ( ($context && $context->isVoteWeightIsAllowed()) \|\| $context === null ) ) :
228	5	$simpleRanking .= " ^".$this->getWeight();
229		endif;
230
231	126	return $simpleRanking;
232		}
233
234
235		// SETTERS
236
237	126	public function setRanking ($rankingCandidate, ?float $ownTimestamp = null) : bool
238		{
239		// Timestamp
240	126	if ($ownTimestamp !== null) :
241	1	if (!empty($this->_ranking) && $this->getTimestamp() >= $ownTimestamp) :
242		throw new CondorcetException(21);
243		endif;
244		endif;
245
246		// Ranking
247	126	$candidateCounter = $this->formatRanking($rankingCandidate);
248
249	126	$this->archiveRanking($rankingCandidate, $candidateCounter, $ownTimestamp);
250
251	126	if (!empty($this->_link)) :
252		try {
253	6	foreach ($this->_link as &$link) :
254	6	$link->prepareModifyVote($this);
255		endforeach;
256		}
257		catch (CondorcetException $e)
258		{
259		array_pop($this->_ranking);
260
261		throw new CondorcetException(18);
262		}
263		endif;
264
265	126	$this->setHashCode();
266	126	return true;
267		}
268
269	126	private function formatRanking (&$ranking) : int
270		{
271	126	if (is_string($ranking)) :
272	110	$ranking = VoteUtil::convertVoteInput($ranking);
273		endif;
274
275	126	if (!is_array($ranking)) :
276		throw new CondorcetException(5);
277		endif;
278
279		$ranking = array_filter($ranking, function ($key) {
280	123	return is_numeric($key);
281	126	}, ARRAY_FILTER_USE_KEY);
282
283	126	ksort($ranking);
284
285	126	$i = 1; $vote_r = [];
286	126	foreach ($ranking as &$value) :
287	123	if ( !is_array($value) ) :
288	26	$vote_r[$i] = [$value];
289		else :
290	113	$vote_r[$i] = $value;
291		endif;
292
293	123	$i++;
294		endforeach;
295
296	126	$ranking = $vote_r;
297
298	126	$counter = 0;
299	126	$list_candidate = [];
300	126	foreach ($ranking as &$line) :
301	123	foreach ($line as &$Candidate) :
302	123	if ( !($Candidate instanceof Candidate) ) :
303	112	$Candidate = new Candidate ($Candidate);
304	112	$Candidate->setProvisionalState(true);
305		endif;
306
307	123	$counter++;
308
309		// Check Duplicate
310
311		// Check objet reference AND check candidates name
312	123	if (!in_array($Candidate, $list_candidate)) :
313	123	$list_candidate[] = $Candidate;
314		else :
315	123	throw new CondorcetException(5);
316		endif;
317
318		endforeach;
319		endforeach;
320
321	126	return $counter;
322		}
323
324
325	1	public function removeCandidates (array $candidatesList) : bool
326		{
327	1	$ranking = $this->getRanking();
328
329	1	if ($ranking === null) :
330		return false;
331		endif;
332
333	1	$rankingCandidate = $this->getAllCandidates();
334
335	1	$canRemove = false;
336	1	foreach ($candidatesList as $oneCandidate) :
337	1	if (in_array($oneCandidate, $rankingCandidate, false)) :
338	1	$canRemove = true;
339	1	break;
340		endif;
341		endforeach;
342
343	1	if (!$canRemove) :
344		return false;
345		endif;
346
347	1	foreach ($ranking as $rankingKey => &$rank) :
348	1	foreach ($rank as $oneRankKey => $oneRankValue) :
349	1	if (in_array($oneRankValue, $candidatesList, false)) :
350	1	unset($rank[$oneRankKey]);
351		endif;
352		endforeach;
353
354	1	if (empty($rank)) :
355	1	unset($ranking[$rankingKey]);
356		endif;
357		endforeach;
358
359	1	$this->setRanking($ranking);
360
361	1	return true;
362		}
363
364
365	126	public function addTags ($tags) : bool
366		{
367	126	if (is_object($tags) \|\| is_bool($tags)) :
368		throw new CondorcetException(17);
369		endif;
370
371	126	$tags = VoteUtil::tagsConvert($tags);
372
373	126	if (empty($tags)) :
374	126	return false;
375		endif;
376
377
378	15	foreach ($tags as $key => $tag) :
379	15	if (is_numeric($tag)) :
380		throw new CondorcetException(17);
381	15	elseif (in_array($tag, $this->_tags, true)) :
382	15	unset($tags[$key]);
383		endif;
384		endforeach;
385
386	15	foreach ($tags as $tag) :
387	15	$this->_tags[] = $tag;
388		endforeach;
389
390	15	$this->setHashCode();
391
392	15	return true;
393		}
394
395	2	public function removeTags ($tags) : array
396		{
397	2	if (is_object($tags) \|\| is_bool($tags)) :
398		throw new CondorcetException(17);
399		endif;
400
401	2	$tags = VoteUtil::tagsConvert($tags);
402
403	2	if (empty($tags)) :
404	1	return [];
405		endif;
406
407
408	2	$rm = [];
409	2	foreach ($tags as $key => $tag) :
410	2	$tagK = array_search($tag, $this->_tags, true);
411
412	2	if ($tagK === false) :
413	1	unset($tags[$key]);
414		else :
415	2	$rm[] = $this->_tags[$tagK];
416	2	unset($this->_tags[$tagK]);
417		endif;
418		endforeach;
419
420	2	$this->setHashCode();
421	2	return $rm;
422		}
423
424	2	public function removeAllTags () : bool
425		{
426	2	$this->removeTags($this->getTags());
427	2	return true;
428		}
429
430	87	public function getWeight () : int
431		{
432	87	return $this->_weight;
433		}
434
435	87	public function setWeight (int $newWeight) : int
436		{
437	87	if ($newWeight < 1) :
438		throw new CondorcetException(26);
439		endif;
440
441	87	$this->_weight = $newWeight;
442
443	87	if (!empty($this->_link)) :
444	86	foreach ($this->_link as &$link) :
445	86	$link->setStateToVote();
446		endforeach;
447		endif;
448
449	87	$this->setHashCode();
450
451	87	return $this->getWeight();
452		}
453
454		/////////// INTERNAL ///////////
455
456	126	private function archiveRanking ($ranking, int $counter, ?float $ownTimestamp) : void
457		{
458	126	$this->_ranking[] = [ 'ranking' => $ranking,
459	126	'timestamp' => ($ownTimestamp !== null) ? $ownTimestamp : microtime(true),
460	126	'counter' => $counter ];
461
462	126	$this->rewind();
463	126	}
464
465	126	private function setHashCode () : string
466		{
467	126	return $this->_hashCode = hash('sha224', ((string) $this) . microtime(false));
468		}
469		}
470

julien-boudry / Condorcet

Branch — master (fa2fc5)

Vote::current() A

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