/**
* 一つのお題を表す配列から解答行に直列化します。
* @param (string|string[]|float)[][] $word
* @return string 末尾に改行 (CRLF) を含みます。
*/
protected function serializeAnswerLine(array $word) : string
{
$line = ['A'];
$specifics = new URLSearchParams($word['specifics'][0] ?? '');
if (isset($word['option'][0])) {
if (isset($word['type'][0]) && $word['type'][0] === 'selection' && empty($word['answer'])) {
$line[] = 2;
} elseif ($specifics->has('require-all-right')) {
$line[] = 3;
} else {
$line[] = 1;
}
$answers = isset($word['answer'][0]) ? $word['answer'] : $word['text'];
foreach ($word['option'] as $i => $option) {
$line[] = $this->serializeQuizField($option);
if ($line[1] === 2) {
$line[] = $i + 1;
} elseif (in_array($option, $answers)) {
$line[] = '\\seikai';
}
}
if ($specifics->has('no-random')) {
$line[] = '\\norandom';
}
} else {
$line[] = 0;
$answers = $this->getAnswers($word, [$this, 'convertToShiftJISableInAnswerWithKatakana']);
if (!$answers) {
$this->logUnserializableError('Inteligenceω クイズ', $word);
return '';
}
$bonuses = $specifics->getAll('bonus');
foreach ($answers as $i => $answer) {
$line[] = $answer;
if (!empty($bonuses[$i])) {
$line[] = "\\bonus={$bonuses[$i]}";
}
}
}
$explain[] = $word['text'][0];
if (isset($word['description'][0])) {
$explain[] = $word['description'][0]['lml'];
}
$line[] = '\\explain=' . $this->serializeQuizField(implode("\n\n", $explain));
return implode(',', $line) . "\r\n";
}
