import type { SelfTestPaper, SelfTestQuestionItem, SelfTestStartPayload } from './types';
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import { mockGetQuestion, mockQueryQuestions } from '#/views/x/tms/question/mock';
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import { SELF_TEST_DIFFICULTY_TO_QUESTION, type SelfTestDifficulty } from './constants';
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function delay<T>(data: T, ms = 250): Promise<T> {
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return new Promise((resolve) => setTimeout(() => resolve(data), ms));
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}
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/** 按条件从 mock 题库抽题（不够则放宽难度） */
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export async function mockStartSelfTest(payload: SelfTestStartPayload): Promise<SelfTestPaper> {
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const all = await mockQueryQuestions({ bankId: payload.bankId, pageSize: 500, currentPage: 1 });
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const list = all.list || [];
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const pick = async (type: 'single' | 'multi' | 'judge', count: number, difficulty: SelfTestDifficulty) => {
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if (count <= 0) return [];
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const mapped = SELF_TEST_DIFFICULTY_TO_QUESTION[difficulty] || [difficulty];
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let pool = list.filter((q) => q.questionType === type);
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if (difficulty) {
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pool = pool.filter((q) => !q.difficulty || mapped.includes(q.difficulty));
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}
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// 不够则放宽难度
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if (pool.length < count) {
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pool = list.filter((q) => q.questionType === type);
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}
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const sliced = pool.slice(0, count);
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const detailed: SelfTestQuestionItem[] = [];
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for (const q of sliced) {
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const full = await mockGetQuestion(q.id!);
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detailed.push({
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id: full.id!,
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questionNo: full.questionNo,
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questionType: full.questionType as 'single' | 'multi' | 'judge',
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difficulty: full.difficulty,
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stem: full.stem,
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options: (full.options || []).map((o) => ({
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optionLabel: o.optionLabel,
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optionContent: o.optionContent,
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isCorrect: o.isCorrect,
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})),
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});
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}
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return detailed;
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};
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const questions = [
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...(await pick('single', payload.single.count, payload.single.difficulty)),
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...(await pick('multi', payload.multi.count, payload.multi.difficulty)),
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...(await pick('judge', payload.judge.count, payload.judge.difficulty)),
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];
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return delay({
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paperId: `self_${Date.now()}`,
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bankId: payload.bankId,
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bankName: payload.bankName || '',
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questions,
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});
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}
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