DigitalConsumer.FixMyGlass/src/common-components/question-chain/question-chain.vue
2022-07-13 09:22:08 -04:00

147 lines
5 KiB
Vue

<template>
<div v-for="(q, i) in questions" :key="i">
<transition appear name="fade" mode="out-in">
<buttonQuestion
v-if="q.answerSelected || (q.questionSequence === currentQuestionNum)"
class="radioQuestion"
:class="(q.questionSequence === currentQuestionNum) && 'current-question'"
:questionText="q.questionText"
:answers="q.answers"
:groupName="`${questionData.glassName}-${questionData.glassLocation}-${i}`"
v-model="selectedValue"
isRequired
:validationRules="validationRules"
:clearOnUnmount=false
/>
</transition>
</div>
</template>
<script>
import buttonQuestion from "@/common-components/button-question/button-question";
export default {
name: "questionChain",
data() {
return {
currentQuestionNum: 1,
questions: [{ "BlankObject": "NOT USED... placeholder for question #0 to simplify indexing"}],
};
},
props: {
questionData: Object,
validationRules: String,
modelValue: Array,
partIndex: Number,
},
created() {
this.questionData.partQuestions.map((q, i) => {
let answerPair = [];
const eachQuestion = {
questionText: q.questionText,
questionSequence: q.questionSequence,
answers: q.answers.map((a) => {
answerPair.push(a.nextQuestionSequence ? a.nextQuestionSequence : a.answerResult);
return {
Text: a.answerText,
// Name will either be nextQuestionSequence or answerResult
// Name will be used by list-button as the input value.
// It must be a single string or number, so concatenating together a string with
// 4 pieces of data separated by pipe characters:
// question number|type of answer|answer value|answer text
Name: a.nextQuestionSequence ?
q.questionSequence + "|nextQuestion|" + a.nextQuestionSequence + "|" + a.answerText :
q.questionSequence + "|answer|" + a.answerResult + "|" + a.answerText,
nextQuestionSequence: a.nextQuestionSequence,
}
}),
answerSelected: "",
};
eachQuestion.answerPair = answerPair;
this.questions.push(eachQuestion);
});
},
computed: {
selectedValue: {
get: function() {
return "";
},
set: function(returnedAnswer) {
const isQuestionChainComplete = this.handleReturnedAnswer(returnedAnswer);
if (isQuestionChainComplete) {
this.$emit("update:modelValue", isQuestionChainComplete);
}
}
},
currentQuestion() {
return this.questions[this.currentQuestionNum];
},
},
methods: {
handleReturnedAnswer(returnedAnswer) { // returns either a final answer or Boolean false
if (!returnedAnswer) { return false }
// Example returnedAnswers:
// "1|nextQuestion|3|No"
// "5|answer|DW02104|Yes"
const returnedAnswerArray = returnedAnswer.split("|");
const questionNum = returnedAnswerArray[0];
const questionType = returnedAnswerArray[1];
const questionAnswer = returnedAnswerArray[2];
const questionAnswerText = returnedAnswerArray[3];
// remove all previous answers after the index of this one in questions
this.questions.map((q) => {
if ((q.questionSequence > questionNum) || (q.answerPair?.includes(questionAnswer))) {
q.answerSelected = "";
}
return q;
});
// set this question as "answered"
this.questions[questionNum].answerSelected = questionAnswerText;
this.questions[questionNum].answerNumber = questionNum;
// update to next question index
this.currentQuestionNum = questionType === "nextQuestion" ? parseInt(questionAnswer) : parseInt(questionNum); // update count to display next question
// return false if there's a nextQuestion... or return an object with "final" answers
if (questionType === "nextQuestion") {
return false;
} else {
const answeredQuestions = [];
this.questions.forEach(( q ) => {
if (q.answerSelected) {
answeredQuestions.push({
questionText: q.questionText,
selectedAnswerText: q.answerSelected,
questionNum: q.answerNumber,
});
}
});
return {
answerResult: questionAnswer,
answeredQuestions: answeredQuestions,
partIndex: this.partIndex,
};
}
},
},
watch: {
currentQuestion: {
handler() {
// scrolls page to next active question
this.$nextTick(() => {
document.querySelector('.current-question').scrollIntoView({behavior: "smooth"});
})
},
deep: true
}
},
components: {
buttonQuestion,
},
};
</script>