83 lines
2.2 KiB
JavaScript
83 lines
2.2 KiB
JavaScript
/**
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* 从服务端拉取启用题库，失败或为空时回落本地 questions.js；顺序由 shuffleQuestions 随机。
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*/
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const { requestPromise } = require('./request')
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const { shuffleQuestions } = require('./questions')
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function getAppSafe() {
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try {
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return getApp()
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} catch (e) {
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return null
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}
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}
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/** 与 runtime 一致：>0 时在乱序后截取前 N 题 */
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function getTestQuestionDrawCount() {
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const app = getAppSafe()
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const n = app && app.globalData && app.globalData.testQuestionDrawCount
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const num = parseInt(String(n == null || n === '' ? '0' : n), 10)
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if (!Number.isFinite(num) || num <= 0) {
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return 0
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}
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return Math.min(500, num)
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}
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function applyDrawCountAfterShuffle(questions) {
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const n = getTestQuestionDrawCount()
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if (!n || questions.length <= n) {
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return questions
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}
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return questions.slice(0, n)
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}
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/**
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* @param {'mbti'|'disc'|'pdp'} type
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* @param {number|null|undefined} enterpriseId
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* @returns {Promise<Array>}
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*/
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function fetchQuestionBank(type, enterpriseId) {
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const q = [`type=${encodeURIComponent(type)}`]
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if (enterpriseId != null && Number(enterpriseId) > 0) {
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q.push(`enterpriseId=${Number(enterpriseId)}`)
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}
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return requestPromise({
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url: `/api/test/questions?${q.join('&')}`,
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method: 'GET',
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needAuth: true
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}).then((res) => {
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const body = res.data || {}
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if (body.code !== 200 || body.data == null) {
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throw new Error(body.message || '拉取题库失败')
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}
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const list = body.data.list
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if (!Array.isArray(list)) {
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throw new Error('题库格式错误')
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}
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return list
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})
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}
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/**
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* @param {'mbti'|'disc'|'pdp'} type
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* @param {Array} localQuestions
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* @param {{ enterpriseId?: number|null }} opts
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* @returns {Promise<Array>}
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*/
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function loadQuestionsWithFallback(type, localQuestions, opts = {}) {
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const { enterpriseId } = opts
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return fetchQuestionBank(type, enterpriseId)
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.then((list) => {
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if (!list.length) {
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return applyDrawCountAfterShuffle(shuffleQuestions(localQuestions))
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}
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return shuffleQuestions(list)
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})
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.catch(() => applyDrawCountAfterShuffle(shuffleQuestions(localQuestions)))
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}
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module.exports = {
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fetchQuestionBank,
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loadQuestionsWithFallback
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}
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