/**
* Public entry point to service
* @return boolean
*/
public function service()
{
if (!$this->shouldService()) {
$this->response("Sorry, could not find a survey by that name.");
return false;
}
$qindex = $this->surveyState->getQuestionIndex();
//No qindex exists, or we are at the first question.
if (is_null($qindex)) {
$qindex = 0;
$this->surveyState->setQuestionIndex($qindex);
//return first question
$question = $this->surveyState->getQuestion();
$this->response($question);
return true;
}
$question = $this->surveyState->getQuestionObj();
$validator = $this->answerValidatorProvider->getValidator($question->getType());
$answer = $this->getRequestBody();
if ($validator->isValid($answer)) {
//move to next question
$qindex++;
//persist our question index state
$this->surveyState->setQuestionIndex($qindex);
if (!$this->surveyState->hasId()) {
$from = session_id();
if (array_key_exists('From', $this->request)) {
$from = $this->request['From'];
}
$this->surveyState->setId($from);
}
$answer = $validator->normalize($answer);
$this->persistAnswer($this->surveyState->getId(), $question, $answer);
} else {
$helperText = $validator->getHelperText();
$response = "Sorry, we couldn't understand your response. {$helperText}";
$this->response($response);
return true;
}
$next_question = $this->surveyState->getQuestion($qindex);
if (is_null($next_question)) {
//no more questions. Send thank you message.
$this->surveyState->setSurveyExecutionState(SurveyExecutionState::Completed());
$next_question = $this->surveyState->getSurvey()->getThankYouMessage();
}
$this->response($next_question);
return true;
}
function testSurveyState()
{
$questionStub = $this->getMock('sarhan\\survey\\SurveyQuestion');
$surveyStub = $this->getMock("sarhan\\survey\\Survey");
$surveyStub->expects($this->any())->method('getQuestions')->will($this->returnValue(array($questionStub, $questionStub, $questionStub)));
$questionStub->expects($this->any())->method("getType")->will($this->returnValue(QuestionType::YesNo()));
$this->assertEquals(array($questionStub, $questionStub, $questionStub), $surveyStub->getQuestions());
$s = new SurveyState();
$s->setSurvey($surveyStub);
$this->assertFalse($s->hasId());
$s->setId("foobar");
$this->assertTrue($s->hasId());
$s->setQuestionIndex(0);
$q = $s->getQuestion();
$this->assertNotNull($q);
$s->setQuestionIndex(3);
$q = $s->getQuestion();
$this->assertNull($q);
}