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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\SecurePoll\Talliers; |
| 4 | |
| 5 | use MediaWiki\Extension\SecurePoll\Exceptions\InvalidDataException; |
| 6 | use Xml; |
| 7 | |
| 8 | class HistogramRangeTallier extends Tallier { |
| 9 | /** @var array */ |
| 10 | public $histogram = []; |
| 11 | /** @var array */ |
| 12 | public $sums = []; |
| 13 | /** @var array */ |
| 14 | public $counts = []; |
| 15 | /** @var array|null */ |
| 16 | public $averages; |
| 17 | /** @var int */ |
| 18 | public $minScore; |
| 19 | /** @var int */ |
| 20 | public $maxScore; |
| 21 | |
| 22 | public function __construct( $context, $electionTallier, $question ) { |
| 23 | parent::__construct( $context, $electionTallier, $question ); |
| 24 | $this->minScore = intval( $question->getProperty( 'min-score' ) ); |
| 25 | $this->maxScore = intval( $question->getProperty( 'max-score' ) ); |
| 26 | if ( $this->minScore >= $this->maxScore ) { |
| 27 | throw new InvalidDataException( __METHOD__ . ': min-score/max-score configured incorrectly' ); |
| 28 | } |
| 29 | |
| 30 | foreach ( $question->getOptions() as $option ) { |
| 31 | $this->histogram[$option->getId()] = array_fill( |
| 32 | $this->minScore, |
| 33 | $this->maxScore - $this->minScore + 1, |
| 34 | 0 |
| 35 | ); |
| 36 | $this->sums[$option->getId()] = 0; |
| 37 | $this->counts[$option->getId()] = 0; |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * @inheritDoc |
| 43 | * |
| 44 | */ |
| 45 | public function addVote( $scores ) { |
| 46 | foreach ( $scores as $oid => $score ) { |
| 47 | $this->histogram[$oid][$score]++; |
| 48 | $this->sums[$oid] += $score; |
| 49 | $this->counts[$oid]++; |
| 50 | } |
| 51 | |
| 52 | return true; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * @inheritDoc |
| 57 | * |
| 58 | */ |
| 59 | public function finishTally() { |
| 60 | $this->averages = []; |
| 61 | foreach ( $this->sums as $oid => $sum ) { |
| 62 | if ( $this->counts[$oid] === 0 ) { |
| 63 | $this->averages[$oid] = 'N/A'; |
| 64 | break; |
| 65 | } |
| 66 | $this->averages[$oid] = $sum / $this->counts[$oid]; |
| 67 | } |
| 68 | arsort( $this->averages ); |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * @inheritDoc |
| 73 | * |
| 74 | */ |
| 75 | public function loadJSONResult( $data ) { |
| 76 | $this->averages = $data['averages']; |
| 77 | $this->histogram = $data['histogram']; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @inheritDoc |
| 82 | * |
| 83 | */ |
| 84 | public function getJSONResult() { |
| 85 | return [ |
| 86 | 'averages' => $this->averages, |
| 87 | 'histogram' => $this->histogram, |
| 88 | ]; |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * @inheritDoc |
| 93 | * @throws InvalidDataException |
| 94 | */ |
| 95 | public function getHtmlResult() { |
| 96 | $ballot = $this->election->getBallot(); |
| 97 | if ( !method_exists( $ballot, 'getColumnLabels' ) ) { |
| 98 | throw new InvalidDataException( __METHOD__ . ': ballot type not supported by this tallier' ); |
| 99 | } |
| 100 | $optionLabels = []; |
| 101 | foreach ( $this->question->getOptions() as $option ) { |
| 102 | $optionLabels[$option->getId()] = $option->parseMessageInline( 'text' ); |
| 103 | } |
| 104 | |
| 105 | // @phan-suppress-next-line PhanUndeclaredMethod Checked by is_callable |
| 106 | $labels = $ballot->getColumnLabels( $this->question ); |
| 107 | $s = "<table class=\"securepoll-table\">\n" . "<tr>\n" . "<th> </th>\n"; |
| 108 | foreach ( $labels as $label ) { |
| 109 | $s .= Xml::element( 'th', [], $label ) . "\n"; |
| 110 | } |
| 111 | $s .= Xml::element( 'th', [], wfMessage( 'securepoll-average-score' )->text() ); |
| 112 | $s .= "</tr>\n"; |
| 113 | |
| 114 | foreach ( $this->averages as $oid => $average ) { |
| 115 | $s .= "<tr>\n" . Xml::tags( |
| 116 | 'td', |
| 117 | [ 'class' => 'securepoll-results-row-heading' ], |
| 118 | $optionLabels[$oid] |
| 119 | ) . "\n"; |
| 120 | foreach ( $labels as $score => $label ) { |
| 121 | $s .= Xml::element( 'td', [], $this->histogram[$oid][$score] ) . "\n"; |
| 122 | } |
| 123 | $s .= Xml::element( 'td', [], $average ) . "\n"; |
| 124 | $s .= "</tr>\n"; |
| 125 | } |
| 126 | $s .= "</table>\n"; |
| 127 | |
| 128 | return $s; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * @inheritDoc |
| 133 | * |
| 134 | */ |
| 135 | public function getTextResult() { |
| 136 | return $this->getHtmlResult(); |
| 137 | } |
| 138 | } |