139 lines
4.5 KiB
JavaScript
139 lines
4.5 KiB
JavaScript
/**
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* 客观题试卷服务模块
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* 负责试卷数据获取和处理
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*/
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import { questionApi } from '../../../config/question_api.js';
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/**
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* 获取试卷详情
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* @param {String} paperId - 试卷ID
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* @param {String} taskId - 任务ID
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* @returns {Promise} 处理后的试卷数据
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*/
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export function fetchQuestionPaper(paperId, taskId) {
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return new Promise((resolve, reject) => {
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if (!paperId) {
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reject(new Error('试卷ID不能为空'));
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return;
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}
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questionApi.getPaperDetail(paperId)
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.then(res => {
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let paperInfo = null;
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if (res && res.code === 200 && res.data) {
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paperInfo = res.data;
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} else if (res && res.success === true && (res.paper || res.data)) {
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paperInfo = res.paper || res.data;
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}
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if (paperInfo) {
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if (!paperInfo.questions || !Array.isArray(paperInfo.questions)) {
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reject(new Error('试卷数据格式错误'));
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return;
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}
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const mapped = paperInfo.questions.map(q => {
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// Fiber 后端返回的格式：QuestionInfo
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// { id, type (QuestionType: 1=主观题, 2=选择题, 3=判断题, 4=填空题), title, content, answer, explanation, options ([]string), tags }
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// 兼容旧格式（PHP后端）
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if (q && (q.question_id || q.question_content || q.question_type)) {
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return {
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...q,
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id: q.question_id,
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title: q.question_content,
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type: q.question_type,
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materials: q.materials || [],
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options: (q.options || []).map(opt => ({
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...opt,
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id: opt.option_id,
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content: opt.option_content,
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label: opt.option_label
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})),
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user_answer: q.user_answer || null,
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explanation: q.explanation || ''
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};
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} else {
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// Fiber 后端格式
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// type: 1=主观题, 2=选择题(单选), 3=判断题, 4=填空题
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// 对于客观题，type 应该是 2 (选择题)
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const opts = Array.isArray(q.options) ? q.options.map((text, idx) => ({
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id: idx + 1,
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content: text,
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label: String.fromCharCode(65 + idx) // A, B, C...
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})) : [];
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// 映射题目类型
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// Fiber: 2=选择题 -> 前端: 'single_choice' 或 'multiple_choice'
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// 这里默认是单选，如果需要判断多选，可能需要根据其他字段或答案格式
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let mappedType = 'single_choice';
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if (q.type === 2) {
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// 选择题，根据答案是否包含逗号判断单选或多选
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const answer = q.answer || '';
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mappedType = answer.includes(',') ? 'multiple_choice' : 'single_choice';
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} else if (q.type === 3) {
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mappedType = 'true_false';
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} else if (q.type === 4) {
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mappedType = 'fill_blank';
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}
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return {
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...q,
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id: q.id,
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title: q.title || q.content || '',
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type: mappedType,
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material_id: q.material_id || null, // 保留题目关联的材料ID
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materials: q.materials || [], // Fiber 后端可能没有 materials 字段
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options: opts,
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user_answer: q.user_answer || null,
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explanation: q.explanation || ''
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};
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}
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});
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const questions = mapped.filter(q => Array.isArray(q.options) && q.options.length > 0);
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const answers = questions.map(question => {
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const optionsLength = question.options.length;
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const arr = new Array(optionsLength).fill(false);
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if (question.user_answer) {
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const userAnsArr = question.user_answer.split(',').map(s => s.trim()).filter(Boolean);
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userAnsArr.forEach(ans => {
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const idx = question.options.findIndex(opt => opt.label === ans);
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if (idx !== -1) arr[idx] = true;
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});
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}
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return arr;
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});
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// 确保 paperInfo 包含必要的字段
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const finalPaperInfo = {
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...paperInfo,
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title: paperInfo.title || '',
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description: paperInfo.description || '',
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duration_minutes: paperInfo.duration_minutes || 0 // Fiber 后端可能没有此字段，默认为 0
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};
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// 材料列表：后端 /paper/detail 返回 paper.materials，用于背景层左右滑动展示
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const materials = Array.isArray(paperInfo.materials) ? paperInfo.materials : [];
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resolve({
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paperInfo: finalPaperInfo,
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questions,
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answers,
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questionAnsweredStatus: answers.map(arr => arr.some(v => v)),
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materials
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});
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} else {
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reject(new Error((res && res.message) || (res && res.msg) || '获取试卷失败'));
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}
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})
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.catch(err => {
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console.error('API调用失败:', err);
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reject(err);
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});
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});
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}
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