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<?php |
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namespace Michaelc\Voting\STV; |
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use Psr\Log\LoggerInterface as Logger; |
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use Michaelc\Voting\Exception\VotingLogicException as LogicException; |
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use Michaelc\Voting\Exception\VotingRuntimeException as RuntimeException; |
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class ElectionFactory |
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{ |
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public static function createBallotCollection(array $rankings): array |
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{ |
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$ballotCollection = []; |
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foreach ($rankings as $ranking) { |
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$ballotCollection[] = new Ballot($ranking); |
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} |
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return $ballotCollection; |
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} |
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public static function createCandidateCollection(array $candidates): array |
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{ |
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$candidateCollection = []; |
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$candidates = array_values($candidates); |
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foreach ($candidates as $i => $candidate) { |
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$candidateCollection[] = new Candidate($i); |
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} |
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return $candidateCollection; |
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} |
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public static function createCandidateBallotCollection(array $candidates, array $rankings): array |
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{ |
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$candidateMatchup = $candidateCollection = []; |
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$candidates = array_values($candidates); |
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foreach ($candidates as $i => $name) { |
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$candidateCollection[] = new Candidate($i); |
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$candidateMatchup[$name] = $i; |
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} |
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foreach ($rankings as &$ranking) { |
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array_walk($ranking, function (&$value, $key, $candidateMatchup) { |
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$value = $candidateMatchup[$value]; |
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}, $candidateMatchup); |
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} |
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$ballotCollection = self::createBallotCollection($rankings); |
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return ['ballots' => $ballotCollection, 'candidates' => $candidateCollection]; |
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} |
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public static function createElection(array $candidates, array $rankings, int $winnerCount, bool $ids = true): Election |
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{ |
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if ($ids) { |
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$candidates = self::createCandidateCollection($candidates); |
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$ballots = self::createBallotCollection($rankings); |
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} else { |
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$collections = self::createCandidateBallotCollection($candidates, $rankings); |
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$candidates = $collections['candidates']; |
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$ballots = $collections['ballots']; |
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} |
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return new Election($candidates, $ballots, $winnerCount); |
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} |
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} |
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michaelcullum /
voting-lib
