frontAnswerer/lib/utils/hooks/useQuestionFlowControl.ts

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import { useCallback, useDebugValue, useMemo, useState } from "react";
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import { enqueueSnackbar } from "notistack";
import moment from "moment";
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import { isResultQuestionEmpty } from "@/components/ViewPublicationPage/tools/checkEmptyData";
import { useQuizSettings } from "@contexts/QuizDataContext";
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import { useQuizViewStore } from "@stores/quizView";
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import { useVkMetricsGoals } from "@/utils/hooks/metrics/useVkMetricsGoals";
import { useYandexMetricsGoals } from "@/utils/hooks/metrics/useYandexMetricsGoals";
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export function useQuestionFlowControl() {
const { settings, questions } = useQuizSettings();
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const sortedQuestions = useMemo(() => {
return [...questions].sort((a, b) => a.page - b.page);
}, [questions]);
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const [currentQuestionId, setCurrentQuestionId] = useState<string | null>(getFirstQuestionId);
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const answers = useQuizViewStore((state) => state.answers);
const pointsSum = useQuizViewStore((state) => state.pointsSum);
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const setCurrentQuizStep = useQuizViewStore((state) => state.setCurrentQuizStep);
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const vkMetrics = useVkMetricsGoals(settings.cfg.vkMetricsNumber);
const yandexMetrics = useYandexMetricsGoals(settings.cfg.yandexMetricsNumber);
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const currentQuestion = sortedQuestions.find((question) => question.id === currentQuestionId) ?? sortedQuestions[0];
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const linearQuestionIndex =
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currentQuestion && sortedQuestions.every(({ content }) => content.rule.parentId !== "root") // null when branching enabled
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? sortedQuestions.indexOf(currentQuestion)
: null;
function getFirstQuestionId() {
if (sortedQuestions.length === 0) return null;
if (settings.cfg.haveRoot) {
const nextQuestion = sortedQuestions.find(
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(question) => question.id === settings.cfg.haveRoot || question.content.id === settings.cfg.haveRoot
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);
if (!nextQuestion) return null;
return nextQuestion.id;
}
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return sortedQuestions[0].id;
}
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const nextQuestionIdPointsLogic = useCallback(() => {
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return sortedQuestions.find((question) => question.type === "result" && question.content.rule.parentId === "line");
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}, [sortedQuestions]);
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const nextQuestionIdMainLogic = useCallback(() => {
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const questionAnswer = answers.find(({ questionId }) => questionId === currentQuestion.id);
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if (questionAnswer && !moment.isMoment(questionAnswer.answer)) {
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const userAnswers = Array.isArray(questionAnswer.answer) ? questionAnswer.answer : [questionAnswer.answer];
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for (const branchingRule of currentQuestion.content.rule.main) {
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if (userAnswers.some((answer) => branchingRule.rules[0].answers.includes(answer))) {
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return branchingRule.next;
}
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}
}
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if (!currentQuestion.required) {
const defaultNextQuestionId = currentQuestion.content.rule.default;
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if (defaultNextQuestionId.length > 1 && defaultNextQuestionId !== " ") return defaultNextQuestionId;
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//Вопросы типа страница, ползунок, своё поле для ввода и дата не могут иметь больше 1 ребёнка. Пользователь не может настроить там дефолт
//Кинуть на ребёнка надо даже если там нет дефолта
if (
["date", "page", "text", "number"].includes(currentQuestion.type) &&
currentQuestion.content.rule.children.length === 1
)
return currentQuestion.content.rule.children[0];
}
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//ничё не нашли, ищем резулт
return sortedQuestions.find((q) => {
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return q.type === "result" && q.content.rule.parentId === currentQuestion.content.id;
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})?.id;
}, [answers, currentQuestion, sortedQuestions]);
const nextQuestionId = useMemo(() => {
if (settings.cfg.score) {
return nextQuestionIdPointsLogic();
}
return nextQuestionIdMainLogic();
}, [nextQuestionIdMainLogic, nextQuestionIdPointsLogic, settings.cfg.score]);
const prevQuestion =
linearQuestionIndex !== null
? sortedQuestions[linearQuestionIndex - 1]
: sortedQuestions.find(
(q) =>
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q.id === currentQuestion?.content.rule.parentId || q.content.id === currentQuestion?.content.rule.parentId
);
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const findResultPointsLogic = useCallback(() => {
const results = sortedQuestions.filter(
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(e) => e.type === "result" && e.content.rule.minScore !== undefined && e.content.rule.minScore <= pointsSum
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);
const numbers = results.map((e) =>
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e.type === "result" && e.content.rule.minScore !== undefined ? e.content.rule.minScore : 0
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);
const indexOfNext = Math.max(...numbers);
return results[numbers.indexOf(indexOfNext)];
}, [pointsSum, sortedQuestions]);
const nextQuestion = useMemo(() => {
let next;
if (settings.cfg.score) {
if (linearQuestionIndex !== null) {
next = sortedQuestions[linearQuestionIndex + 1];
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if (next?.type === "result" || next == undefined) next = findResultPointsLogic();
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}
} else {
if (linearQuestionIndex !== null) {
next =
sortedQuestions[linearQuestionIndex + 1] ??
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sortedQuestions.find((question) => question.type === "result" && question.content.rule.parentId === "line");
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} else {
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next = sortedQuestions.find((q) => q.id === nextQuestionId || q.content.id === nextQuestionId);
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}
}
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return next;
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}, [nextQuestionId, findResultPointsLogic, linearQuestionIndex, sortedQuestions, settings.cfg.score]);
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const showResult = useCallback(() => {
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if (nextQuestion?.type !== "result") throw new Error("Current question is not result");
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setCurrentQuestionId(nextQuestion.id);
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if (
settings.cfg.showfc !== false &&
(settings.cfg.resultInfo.showResultForm === "after" || isResultQuestionEmpty(nextQuestion))
)
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setCurrentQuizStep("contactform");
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}, [nextQuestion, setCurrentQuizStep, settings.cfg.resultInfo.showResultForm, settings.cfg.showfc]);
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const showResultAfterContactForm = useCallback(() => {
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if (currentQuestion?.type !== "result") throw new Error("Current question is not result");
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if (isResultQuestionEmpty(currentQuestion)) {
enqueueSnackbar("Данные отправлены");
return;
}
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setCurrentQuizStep("question");
}, [currentQuestion, setCurrentQuizStep]);
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const moveToPrevQuestion = useCallback(() => {
if (!prevQuestion) throw new Error("Previous question not found");
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setCurrentQuestionId(prevQuestion.id);
}, [prevQuestion]);
const moveToNextQuestion = useCallback(() => {
if (!nextQuestion) throw new Error("Next question not found");
// Засчитываем переход с вопроса дальше
vkMetrics.questionPassed(currentQuestion.id);
yandexMetrics.questionPassed(currentQuestion.id);
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if (nextQuestion.type === "result") return showResult();
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setCurrentQuestionId(nextQuestion.id);
}, [currentQuestion.id, nextQuestion, showResult, vkMetrics, yandexMetrics]);
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const setQuestion = useCallback(
(questionId: string) => {
const question = sortedQuestions.find((q) => q.id === questionId);
if (!question) return;
setCurrentQuestionId(question.id);
},
[sortedQuestions]
);
const isPreviousButtonEnabled = Boolean(prevQuestion);
const isNextButtonEnabled = useMemo(() => {
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const hasAnswer = answers.some(({ questionId }) => questionId === currentQuestion.id);
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if ("required" in currentQuestion.content && currentQuestion.content.required) {
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return hasAnswer;
}
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return Boolean(nextQuestion);
}, [answers, currentQuestion, nextQuestion]);
useDebugValue({
linearQuestionIndex,
currentQuestion: currentQuestion,
prevQuestion: prevQuestion,
nextQuestion: nextQuestion,
});
return {
currentQuestion,
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currentQuestionStepNumber: linearQuestionIndex === null ? null : linearQuestionIndex + 1,
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nextQuestion,
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isNextButtonEnabled,
isPreviousButtonEnabled,
moveToPrevQuestion,
moveToNextQuestion,
showResultAfterContactForm,
setQuestion,
};
}