2002 lines
67 KiB
JavaScript
2002 lines
67 KiB
JavaScript
import crypto from 'crypto';
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import User from '../models/community/user.js';
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import VocabCourse from '../models/community/vocab_course.js';
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import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
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import VocabCourseEnrollment from '../models/community/vocab_course_enrollment.js';
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import VocabCourseProgress from '../models/community/vocab_course_progress.js';
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import VocabGrammarExerciseType from '../models/community/vocab_grammar_exercise_type.js';
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import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
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import VocabGrammarExerciseProgress from '../models/community/vocab_grammar_exercise_progress.js';
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import UserParamType from '../models/type/user_param.js';
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import UserParam from '../models/community/user_param.js';
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import { sequelize } from '../utils/sequelize.js';
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import { notifyUser } from '../utils/socket.js';
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import { Op } from 'sequelize';
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export default class VocabService {
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async _getUserByHashedId(hashedUserId) {
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const user = await User.findOne({ where: { hashedId: hashedUserId } });
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if (!user) {
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const err = new Error('User not found');
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err.status = 404;
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throw err;
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}
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return user;
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}
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async _getUserLlmConfig(userId) {
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const [settingsType, apiKeyType] = await Promise.all([
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UserParamType.findOne({ where: { description: 'llm_settings' } }),
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UserParamType.findOne({ where: { description: 'llm_api_key' } })
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]);
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if (!settingsType || !apiKeyType) {
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return {
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enabled: false,
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baseUrl: '',
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model: 'gpt-4o-mini',
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hasKey: false,
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apiKey: null,
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configured: false
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};
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}
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const [settingsRow, keyRow] = await Promise.all([
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UserParam.findOne({ where: { userId, paramTypeId: settingsType.id } }),
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UserParam.findOne({ where: { userId, paramTypeId: apiKeyType.id } })
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]);
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let parsed = {};
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if (settingsRow?.value) {
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try {
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parsed = JSON.parse(settingsRow.value);
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} catch {
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parsed = {};
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}
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}
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const decryptedKey = keyRow?.value ? String(keyRow.value).trim() : null;
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const hasKey = Boolean(decryptedKey && String(decryptedKey).trim());
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const enabled = parsed.enabled !== false;
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const baseUrl = String(parsed.baseUrl || '').trim();
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return {
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enabled,
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baseUrl,
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model: String(parsed.model || 'gpt-4o-mini').trim() || 'gpt-4o-mini',
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hasKey,
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apiKey: hasKey ? decryptedKey : null,
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configured: enabled && (hasKey || Boolean(baseUrl))
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};
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}
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_sanitizeAssistantHistory(history) {
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if (!Array.isArray(history)) {
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return [];
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}
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return history
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.slice(-8)
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.map((entry) => ({
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role: entry?.role === 'assistant' ? 'assistant' : 'user',
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content: String(entry?.content || '').trim()
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}))
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.filter((entry) => entry.content);
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}
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_buildLessonAssistantSystemPrompt(lesson, mode = 'practice') {
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const didactics = lesson?.didactics || {};
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const learningGoals = Array.isArray(didactics.learningGoals) ? didactics.learningGoals : [];
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const corePatterns = Array.isArray(didactics.corePatterns) ? didactics.corePatterns : [];
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const speakingPrompts = Array.isArray(didactics.speakingPrompts) ? didactics.speakingPrompts : [];
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const practicalTasks = Array.isArray(didactics.practicalTasks) ? didactics.practicalTasks : [];
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const modeDirectives = {
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explain: 'Erkläre knapp und klar die Grammatik, Muster und typische Fehler dieser Lektion. Nutze kurze Beispiele.',
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practice: 'Führe den Nutzer aktiv durch kurze Sprachpraxis. Stelle Rückfragen, gib kleine Aufgaben und fordere zu eigenen Antworten auf.',
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correct: 'Korrigiere Eingaben freundlich, konkret und knapp. Zeige eine bessere Formulierung und erkläre den wichtigsten Fehler.'
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};
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return [
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'Du bist ein didaktischer Sprachassistent innerhalb eines Sprachkurses.',
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'Antworte auf Deutsch, aber verwende die Zielsprache der Lektion aktiv in Beispielen und Mini-Dialogen.',
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modeDirectives[mode] || modeDirectives.practice,
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'Halte Antworten kompakt, praxisnah und auf diese Lektion fokussiert.',
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`Kurs: ${lesson?.course?.title || 'Unbekannter Kurs'}`,
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`Lektion: ${lesson?.title || 'Unbekannte Lektion'}`,
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lesson?.description ? `Beschreibung: ${lesson.description}` : '',
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learningGoals.length ? `Lernziele: ${learningGoals.join(' | ')}` : '',
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corePatterns.length ? `Kernmuster: ${corePatterns.join(' | ')}` : '',
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speakingPrompts.length
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? `Sprechaufträge: ${speakingPrompts.map((item) => item.prompt || item.title || '').filter(Boolean).join(' | ')}`
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: '',
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practicalTasks.length
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? `Praxisaufgaben: ${practicalTasks.map((item) => item.text || item.title || '').filter(Boolean).join(' | ')}`
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: '',
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'Wenn der Nutzer eine Formulierung versucht, korrigiere sie präzise und gib eine verbesserte Version.'
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].filter(Boolean).join('\n');
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}
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_extractAssistantContent(responseData) {
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const rawContent = responseData?.choices?.[0]?.message?.content;
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if (typeof rawContent === 'string') {
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return rawContent.trim();
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}
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if (Array.isArray(rawContent)) {
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return rawContent
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.map((item) => {
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if (typeof item === 'string') return item;
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if (item?.type === 'text') return item.text || '';
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return '';
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})
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.join('\n')
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.trim();
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}
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return '';
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}
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_normalizeLexeme(text) {
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return String(text || '')
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.trim()
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.toLowerCase()
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.replace(/\s+/g, ' ');
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}
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_normalizeTextAnswer(text) {
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return String(text || '')
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.trim()
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.toLowerCase()
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.replace(/[.,!?;:¿¡"]/g, '')
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.replace(/\s+/g, ' ');
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}
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_normalizeStringList(value) {
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if (!value) return [];
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if (Array.isArray(value)) {
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return value
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.map((entry) => String(entry || '').trim())
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.filter(Boolean);
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}
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if (typeof value === 'string') {
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return value
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.split(/\r?\n|;/)
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.map((entry) => entry.trim())
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.filter(Boolean);
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}
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return [];
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}
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_normalizeStructuredList(value, keys = ['title', 'text']) {
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if (!value) return [];
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if (Array.isArray(value)) {
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return value
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.map((entry) => {
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if (typeof entry === 'string') {
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return { title: '', text: entry.trim() };
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}
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if (!entry || typeof entry !== 'object') return null;
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const normalized = {};
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keys.forEach((key) => {
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if (entry[key] !== undefined && entry[key] !== null) {
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normalized[key] = String(entry[key]).trim();
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}
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});
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return Object.keys(normalized).length > 0 ? normalized : null;
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})
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.filter(Boolean);
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}
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return [];
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}
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_buildLessonDidactics(plainLesson) {
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const grammarExercises = Array.isArray(plainLesson.grammarExercises) ? plainLesson.grammarExercises : [];
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const grammarExplanations = [];
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const patterns = [];
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const speakingPrompts = [];
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grammarExercises.forEach((exercise) => {
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const questionData = typeof exercise.questionData === 'string'
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? JSON.parse(exercise.questionData)
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: (exercise.questionData || {});
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if (exercise.explanation) {
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grammarExplanations.push({
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title: exercise.title || '',
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text: exercise.explanation
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});
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}
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const patternCandidates = [
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questionData.pattern,
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questionData.exampleSentence,
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questionData.modelAnswer,
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questionData.promptSentence
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].filter(Boolean);
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patternCandidates.forEach((candidate) => {
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patterns.push(String(candidate).trim());
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});
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if (questionData.type === 'reading_aloud' || questionData.type === 'speaking_from_memory') {
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speakingPrompts.push({
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title: exercise.title || '',
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prompt: questionData.question || questionData.text || '',
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cue: questionData.expectedText || '',
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keywords: Array.isArray(questionData.keywords) ? questionData.keywords : []
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});
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}
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});
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const uniqueGrammarExplanations = grammarExplanations.filter((item, index, list) => {
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const signature = `${item.title}::${item.text}`;
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return list.findIndex((entry) => `${entry.title}::${entry.text}` === signature) === index;
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});
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const uniquePatterns = [...new Set(patterns.map((item) => String(item || '').trim()).filter(Boolean))];
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const learningGoals = this._normalizeStringList(plainLesson.learningGoals);
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const corePatterns = this._normalizeStringList(plainLesson.corePatterns);
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const grammarFocus = this._normalizeStructuredList(plainLesson.grammarFocus, ['title', 'text', 'example']);
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const explicitSpeakingPrompts = this._normalizeStructuredList(plainLesson.speakingPrompts, ['title', 'prompt', 'cue']);
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const practicalTasks = this._normalizeStructuredList(plainLesson.practicalTasks, ['title', 'text']);
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return {
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learningGoals: learningGoals.length > 0
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? learningGoals
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: [
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'Die Schlüsselausdrücke der Lektion verstehen und wiedererkennen.',
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'Ein bis zwei Satzmuster aktiv anwenden.',
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'Kurze Sätze oder Mini-Dialoge zum Thema selbst bilden.'
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],
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corePatterns: corePatterns.length > 0 ? corePatterns : uniquePatterns.slice(0, 5),
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grammarFocus: grammarFocus.length > 0 ? grammarFocus : uniqueGrammarExplanations.slice(0, 4),
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speakingPrompts: explicitSpeakingPrompts.length > 0 ? explicitSpeakingPrompts : speakingPrompts.slice(0, 4),
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practicalTasks: practicalTasks.length > 0
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? practicalTasks
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: [
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{
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title: 'Mini-Anwendung',
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text: 'Formuliere zwei bis drei eigene Sätze oder einen kurzen Dialog mit dem Muster dieser Lektion.'
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}
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]
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};
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}
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async _getLanguageAccess(userId, languageId) {
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const id = Number.parseInt(languageId, 10);
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if (!Number.isFinite(id)) {
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const err = new Error('Invalid language id');
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err.status = 400;
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throw err;
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}
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const [row] = await sequelize.query(
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`
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SELECT
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l.id,
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(l.owner_user_id = :userId) AS "isOwner"
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FROM community.vocab_language l
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WHERE l.id = :languageId
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AND (
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l.owner_user_id = :userId
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OR EXISTS (
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SELECT 1
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FROM community.vocab_language_subscription s
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WHERE s.user_id = :userId AND s.language_id = l.id
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)
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)
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LIMIT 1
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`,
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{
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replacements: { userId, languageId: id },
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type: sequelize.QueryTypes.SELECT,
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}
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);
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if (!row) {
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const err = new Error('Language not found or no access');
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err.status = 404;
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throw err;
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}
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return row;
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}
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async _getChapterAccess(userId, chapterId) {
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const id = Number.parseInt(chapterId, 10);
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if (!Number.isFinite(id)) {
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const err = new Error('Invalid chapter id');
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err.status = 400;
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throw err;
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}
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const [row] = await sequelize.query(
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`
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SELECT
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c.id,
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c.language_id AS "languageId",
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c.title,
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(l.owner_user_id = :userId) AS "isOwner"
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FROM community.vocab_chapter c
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JOIN community.vocab_language l ON l.id = c.language_id
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WHERE c.id = :chapterId
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AND (
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l.owner_user_id = :userId
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OR EXISTS (
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SELECT 1
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FROM community.vocab_language_subscription s
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WHERE s.user_id = :userId AND s.language_id = l.id
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)
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)
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LIMIT 1
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`,
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{
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replacements: { userId, chapterId: id },
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type: sequelize.QueryTypes.SELECT,
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}
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);
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if (!row) {
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const err = new Error('Chapter not found or no access');
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err.status = 404;
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throw err;
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}
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return row;
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}
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async listLanguages(hashedUserId) {
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const user = await this._getUserByHashedId(hashedUserId);
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const rows = await sequelize.query(
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`
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SELECT
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l.id,
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l.name,
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l.share_code AS "shareCode",
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TRUE AS "isOwner"
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FROM community.vocab_language l
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WHERE l.owner_user_id = :userId
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UNION ALL
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SELECT
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l.id,
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l.name,
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NULL::text AS "shareCode",
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FALSE AS "isOwner"
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FROM community.vocab_language_subscription s
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JOIN community.vocab_language l ON l.id = s.language_id
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WHERE s.user_id = :userId
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ORDER BY name ASC
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`,
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{
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replacements: { userId: user.id },
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type: sequelize.QueryTypes.SELECT,
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}
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);
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return { languages: rows };
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}
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async listAllLanguages() {
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// Gibt alle verfügbaren Sprachen zurück (für Kursliste)
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const rows = await sequelize.query(
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`
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SELECT
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id,
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name
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FROM community.vocab_language
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ORDER BY name ASC
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`,
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{
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type: sequelize.QueryTypes.SELECT,
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}
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);
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return { languages: rows };
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}
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async listLanguagesForMenu(userId) {
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// userId ist die numerische community.user.id
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const rows = await sequelize.query(
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`
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SELECT l.id, l.name
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FROM community.vocab_language l
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WHERE l.owner_user_id = :userId
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UNION
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SELECT l.id, l.name
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FROM community.vocab_language_subscription s
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JOIN community.vocab_language l ON l.id = s.language_id
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WHERE s.user_id = :userId
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ORDER BY name ASC
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`,
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{
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replacements: { userId },
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type: sequelize.QueryTypes.SELECT,
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}
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);
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return rows;
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}
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async createLanguage(hashedUserId, { name }) {
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const user = await this._getUserByHashedId(hashedUserId);
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const cleanName = typeof name === 'string' ? name.trim() : '';
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if (!cleanName || cleanName.length < 2 || cleanName.length > 60) {
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const err = new Error('Invalid language name');
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err.status = 400;
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throw err;
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}
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// 16 hex chars => ausreichend kurz, gut teilbar
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const shareCode = crypto.randomBytes(8).toString('hex');
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const [created] = await sequelize.query(
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`
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INSERT INTO community.vocab_language (owner_user_id, name, share_code)
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VALUES (:ownerUserId, :name, :shareCode)
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RETURNING id, name, share_code AS "shareCode"
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`,
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{
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replacements: { ownerUserId: user.id, name: cleanName, shareCode },
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type: sequelize.QueryTypes.SELECT,
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}
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);
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// Menü dynamisch nachladen (bei allen offenen Tabs/Clients)
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try {
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notifyUser(user.hashedId, 'reloadmenu', {});
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} catch (_) {}
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return created;
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}
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async subscribeByShareCode(hashedUserId, { shareCode }) {
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const user = await this._getUserByHashedId(hashedUserId);
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const code = typeof shareCode === 'string' ? shareCode.trim() : '';
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if (!code || code.length < 6 || code.length > 128) {
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const err = new Error('Invalid share code');
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err.status = 400;
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throw err;
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}
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const [lang] = await sequelize.query(
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`
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SELECT id, owner_user_id AS "ownerUserId", name
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FROM community.vocab_language
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WHERE share_code = :shareCode
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LIMIT 1
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`,
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{
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replacements: { shareCode: code },
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type: sequelize.QueryTypes.SELECT,
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}
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);
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if (!lang) {
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const err = new Error('Language not found');
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err.status = 404;
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throw err;
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}
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// Owner braucht kein Abo
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if (lang.ownerUserId === user.id) {
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return { subscribed: false, message: 'Already owner', languageId: lang.id };
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}
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await sequelize.query(
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`
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INSERT INTO community.vocab_language_subscription (user_id, language_id)
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VALUES (:userId, :languageId)
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ON CONFLICT (user_id, language_id) DO NOTHING
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`,
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{
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replacements: { userId: user.id, languageId: lang.id },
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type: sequelize.QueryTypes.INSERT,
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}
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);
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try {
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notifyUser(user.hashedId, 'reloadmenu', {});
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} catch (_) {}
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return { subscribed: true, languageId: lang.id, name: lang.name };
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}
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async getLanguage(hashedUserId, languageId) {
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const user = await this._getUserByHashedId(hashedUserId);
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const id = Number.parseInt(languageId, 10);
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if (!Number.isFinite(id)) {
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const err = new Error('Invalid language id');
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err.status = 400;
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throw err;
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}
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const [row] = await sequelize.query(
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|
`
|
|
SELECT
|
|
l.id,
|
|
l.name,
|
|
CASE WHEN l.owner_user_id = :userId THEN l.share_code ELSE NULL END AS "shareCode",
|
|
(l.owner_user_id = :userId) AS "isOwner"
|
|
FROM community.vocab_language l
|
|
WHERE l.id = :languageId
|
|
AND (
|
|
l.owner_user_id = :userId
|
|
OR EXISTS (
|
|
SELECT 1
|
|
FROM community.vocab_language_subscription s
|
|
WHERE s.user_id = :userId AND s.language_id = l.id
|
|
)
|
|
)
|
|
LIMIT 1
|
|
`,
|
|
{
|
|
replacements: { userId: user.id, languageId: id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
}
|
|
);
|
|
|
|
if (!row) {
|
|
const err = new Error('Language not found or no access');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
return row;
|
|
}
|
|
|
|
async listChapters(hashedUserId, languageId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const access = await this._getLanguageAccess(user.id, languageId);
|
|
|
|
const rows = await sequelize.query(
|
|
`
|
|
SELECT
|
|
c.id,
|
|
c.title,
|
|
c.created_at AS "createdAt",
|
|
(
|
|
SELECT COUNT(*)
|
|
FROM community.vocab_chapter_lexeme cl
|
|
WHERE cl.chapter_id = c.id
|
|
)::int AS "vocabCount"
|
|
FROM community.vocab_chapter c
|
|
WHERE c.language_id = :languageId
|
|
ORDER BY c.title ASC
|
|
`,
|
|
{
|
|
replacements: { languageId: access.id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
}
|
|
);
|
|
|
|
return { chapters: rows, isOwner: access.isOwner };
|
|
}
|
|
|
|
async createChapter(hashedUserId, languageId, { title }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const access = await this._getLanguageAccess(user.id, languageId);
|
|
if (!access.isOwner) {
|
|
const err = new Error('Only owner can create chapters');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const cleanTitle = typeof title === 'string' ? title.trim() : '';
|
|
if (!cleanTitle || cleanTitle.length < 2 || cleanTitle.length > 80) {
|
|
const err = new Error('Invalid chapter title');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
const [created] = await sequelize.query(
|
|
`
|
|
INSERT INTO community.vocab_chapter (language_id, title, created_by_user_id)
|
|
VALUES (:languageId, :title, :userId)
|
|
RETURNING id, title, created_at AS "createdAt"
|
|
`,
|
|
{
|
|
replacements: { languageId: access.id, title: cleanTitle, userId: user.id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
}
|
|
);
|
|
|
|
return created;
|
|
}
|
|
|
|
async getChapter(hashedUserId, chapterId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const ch = await this._getChapterAccess(user.id, chapterId);
|
|
return { id: ch.id, languageId: ch.languageId, title: ch.title, isOwner: ch.isOwner };
|
|
}
|
|
|
|
async listChapterVocabs(hashedUserId, chapterId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const ch = await this._getChapterAccess(user.id, chapterId);
|
|
|
|
const rows = await sequelize.query(
|
|
`
|
|
SELECT
|
|
cl.id,
|
|
l1.text AS "learning",
|
|
l2.text AS "reference",
|
|
cl.created_at AS "createdAt"
|
|
FROM community.vocab_chapter_lexeme cl
|
|
JOIN community.vocab_lexeme l1 ON l1.id = cl.learning_lexeme_id
|
|
JOIN community.vocab_lexeme l2 ON l2.id = cl.reference_lexeme_id
|
|
WHERE cl.chapter_id = :chapterId
|
|
ORDER BY l1.text ASC, l2.text ASC
|
|
`,
|
|
{
|
|
replacements: { chapterId: ch.id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
}
|
|
);
|
|
|
|
return { chapter: { id: ch.id, title: ch.title, languageId: ch.languageId, isOwner: ch.isOwner }, vocabs: rows };
|
|
}
|
|
|
|
async listLanguageVocabs(hashedUserId, languageId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const access = await this._getLanguageAccess(user.id, languageId);
|
|
|
|
const rows = await sequelize.query(
|
|
`
|
|
SELECT
|
|
cl.id,
|
|
c.id AS "chapterId",
|
|
c.title AS "chapterTitle",
|
|
l1.text AS "learning",
|
|
l2.text AS "reference",
|
|
cl.created_at AS "createdAt"
|
|
FROM community.vocab_chapter_lexeme cl
|
|
JOIN community.vocab_chapter c ON c.id = cl.chapter_id
|
|
JOIN community.vocab_lexeme l1 ON l1.id = cl.learning_lexeme_id
|
|
JOIN community.vocab_lexeme l2 ON l2.id = cl.reference_lexeme_id
|
|
WHERE c.language_id = :languageId
|
|
ORDER BY c.title ASC, l1.text ASC, l2.text ASC
|
|
`,
|
|
{
|
|
replacements: { languageId: access.id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
}
|
|
);
|
|
|
|
return { languageId: access.id, isOwner: access.isOwner, vocabs: rows };
|
|
}
|
|
|
|
async searchVocabs(hashedUserId, languageId, { q = '', learning = '', motherTongue = '' } = {}) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const access = await this._getLanguageAccess(user.id, languageId);
|
|
|
|
const query = typeof q === 'string' ? q.trim() : '';
|
|
// Abwärtskompatibel: falls alte Parameter genutzt werden, zusammenfassen
|
|
const learningTerm = typeof learning === 'string' ? learning.trim() : '';
|
|
const motherTerm = typeof motherTongue === 'string' ? motherTongue.trim() : '';
|
|
const effective = query || learningTerm || motherTerm;
|
|
|
|
if (!effective) {
|
|
const err = new Error('Missing search term');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
const like = `%${effective}%`;
|
|
|
|
const rows = await sequelize.query(
|
|
`
|
|
SELECT
|
|
cl.id,
|
|
c.id AS "chapterId",
|
|
c.title AS "chapterTitle",
|
|
l1.text AS "learning",
|
|
l2.text AS "motherTongue"
|
|
FROM community.vocab_chapter_lexeme cl
|
|
JOIN community.vocab_chapter c ON c.id = cl.chapter_id
|
|
JOIN community.vocab_lexeme l1 ON l1.id = cl.learning_lexeme_id
|
|
JOIN community.vocab_lexeme l2 ON l2.id = cl.reference_lexeme_id
|
|
WHERE c.language_id = :languageId
|
|
AND (l1.text ILIKE :like OR l2.text ILIKE :like)
|
|
ORDER BY l2.text ASC, l1.text ASC, c.title ASC
|
|
LIMIT 200
|
|
`,
|
|
{
|
|
replacements: {
|
|
languageId: access.id,
|
|
like,
|
|
},
|
|
type: sequelize.QueryTypes.SELECT,
|
|
}
|
|
);
|
|
|
|
return { languageId: access.id, results: rows };
|
|
}
|
|
|
|
async addVocabToChapter(hashedUserId, chapterId, { learning, reference }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const ch = await this._getChapterAccess(user.id, chapterId);
|
|
if (!ch.isOwner) {
|
|
const err = new Error('Only owner can add vocab');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const learningText = typeof learning === 'string' ? learning.trim() : '';
|
|
const referenceText = typeof reference === 'string' ? reference.trim() : '';
|
|
if (!learningText || !referenceText) {
|
|
const err = new Error('Invalid vocab');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
const learningNorm = this._normalizeLexeme(learningText);
|
|
const referenceNorm = this._normalizeLexeme(referenceText);
|
|
|
|
// Transaktion: Lexeme upserten + Zuordnung setzen
|
|
return await sequelize.transaction(async (t) => {
|
|
const [learningLex] = await sequelize.query(
|
|
`
|
|
INSERT INTO community.vocab_lexeme (language_id, text, normalized, created_by_user_id)
|
|
VALUES (:languageId, :text, :normalized, :userId)
|
|
ON CONFLICT (language_id, normalized) DO UPDATE SET text = EXCLUDED.text
|
|
RETURNING id
|
|
`,
|
|
{
|
|
replacements: { languageId: ch.languageId, text: learningText, normalized: learningNorm, userId: user.id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
transaction: t,
|
|
}
|
|
);
|
|
|
|
const [referenceLex] = await sequelize.query(
|
|
`
|
|
INSERT INTO community.vocab_lexeme (language_id, text, normalized, created_by_user_id)
|
|
VALUES (:languageId, :text, :normalized, :userId)
|
|
ON CONFLICT (language_id, normalized) DO UPDATE SET text = EXCLUDED.text
|
|
RETURNING id
|
|
`,
|
|
{
|
|
replacements: { languageId: ch.languageId, text: referenceText, normalized: referenceNorm, userId: user.id },
|
|
type: sequelize.QueryTypes.SELECT,
|
|
transaction: t,
|
|
}
|
|
);
|
|
|
|
const [mapping] = await sequelize.query(
|
|
`
|
|
INSERT INTO community.vocab_chapter_lexeme (chapter_id, learning_lexeme_id, reference_lexeme_id, created_by_user_id)
|
|
VALUES (:chapterId, :learningId, :referenceId, :userId)
|
|
ON CONFLICT (chapter_id, learning_lexeme_id, reference_lexeme_id) DO NOTHING
|
|
RETURNING id
|
|
`,
|
|
{
|
|
replacements: {
|
|
chapterId: ch.id,
|
|
learningId: learningLex.id,
|
|
referenceId: referenceLex.id,
|
|
userId: user.id,
|
|
},
|
|
type: sequelize.QueryTypes.SELECT,
|
|
transaction: t,
|
|
}
|
|
);
|
|
|
|
return { created: Boolean(mapping?.id) };
|
|
});
|
|
}
|
|
|
|
// ========== COURSE METHODS ==========
|
|
|
|
async createCourse(hashedUserId, { title, description, languageId, nativeLanguageId, difficultyLevel = 1, isPublic = false }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
|
|
// Prüfe Zugriff auf Sprache
|
|
await this._getLanguageAccess(user.id, languageId);
|
|
|
|
const shareCode = isPublic ? crypto.randomBytes(8).toString('hex') : null;
|
|
|
|
const course = await VocabCourse.create({
|
|
ownerUserId: user.id,
|
|
title,
|
|
description,
|
|
languageId: Number(languageId),
|
|
nativeLanguageId: nativeLanguageId ? Number(nativeLanguageId) : null,
|
|
difficultyLevel: Number(difficultyLevel) || 1,
|
|
isPublic: Boolean(isPublic),
|
|
shareCode
|
|
});
|
|
|
|
return course.get({ plain: true });
|
|
}
|
|
|
|
async getCourses(hashedUserId, { includePublic = true, includeOwn = true, languageId, nativeLanguageId, search } = {}) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
|
|
// Konvertiere String-Parameter zu Booleans
|
|
const includePublicBool = includePublic === 'true' || includePublic === true;
|
|
const includeOwnBool = includeOwn === 'true' || includeOwn === true;
|
|
|
|
const where = {};
|
|
const andConditions = [];
|
|
|
|
// Zugriffsbedingungen
|
|
if (includeOwnBool && includePublicBool) {
|
|
andConditions.push({
|
|
[Op.or]: [
|
|
{ ownerUserId: user.id },
|
|
{ isPublic: true }
|
|
]
|
|
});
|
|
} else if (includeOwnBool) {
|
|
where.ownerUserId = user.id;
|
|
} else if (includePublicBool) {
|
|
where.isPublic = true;
|
|
}
|
|
|
|
// Filter nach Zielsprache (die zu lernende Sprache)
|
|
if (languageId) {
|
|
where.languageId = Number(languageId);
|
|
}
|
|
|
|
// Filter nach Muttersprache (die Sprache des Lerners)
|
|
// Wenn nativeLanguageId nicht gesetzt ist (undefined), zeige alle Kurse (kein Filter)
|
|
// Wenn nativeLanguageId === null oder 'null' (aus Frontend), zeige alle Kurse (kein Filter)
|
|
// Wenn nativeLanguageId eine Zahl ist, zeige nur Kurse für diese Muttersprache
|
|
if (nativeLanguageId !== undefined && nativeLanguageId !== null && nativeLanguageId !== 'null') {
|
|
where.nativeLanguageId = Number(nativeLanguageId);
|
|
}
|
|
// Wenn nativeLanguageId null/undefined/'null' ist, wird kein Filter angewendet = alle Kurse
|
|
|
|
// Suche nach Titel oder Beschreibung
|
|
if (search && search.trim()) {
|
|
const searchTerm = `%${search.trim()}%`;
|
|
andConditions.push({
|
|
[Op.or]: [
|
|
{ title: { [Op.iLike]: searchTerm } },
|
|
{ description: { [Op.iLike]: searchTerm } }
|
|
]
|
|
});
|
|
}
|
|
|
|
// Kombiniere alle AND-Bedingungen
|
|
// Wenn sowohl andConditions als auch direkte where-Eigenschaften existieren,
|
|
// müssen sie kombiniert werden
|
|
// WICHTIG: directWhereProps muss NACH dem Setzen aller direkten Eigenschaften berechnet werden
|
|
const directWhereProps = Object.keys(where).filter(key => {
|
|
// Filtere Op.and und Op.or heraus (sind Symbol-Keys)
|
|
return key !== Op.and && key !== Op.or && typeof key === 'string';
|
|
});
|
|
|
|
if (andConditions.length > 0) {
|
|
// Wenn where bereits direkte Eigenschaften hat, füge sie zu andConditions hinzu
|
|
if (directWhereProps.length > 0) {
|
|
const directWhere = {};
|
|
for (const key of directWhereProps) {
|
|
directWhere[key] = where[key];
|
|
delete where[key];
|
|
}
|
|
andConditions.push(directWhere);
|
|
}
|
|
// Entferne leere Objekte aus andConditions
|
|
const filteredConditions = andConditions.filter(cond => {
|
|
return cond && typeof cond === 'object' && Object.keys(cond).length > 0;
|
|
});
|
|
// Setze andConditions nur, wenn sie nicht leer sind
|
|
if (filteredConditions.length > 0) {
|
|
where[Op.and] = filteredConditions;
|
|
}
|
|
}
|
|
// Wenn nur direkte Eigenschaften existieren (andConditions.length === 0),
|
|
// bleiben sie in where (nichts zu tun, sie sind bereits dort)
|
|
|
|
const courses = await VocabCourse.findAll({
|
|
where,
|
|
order: [['createdAt', 'DESC']]
|
|
});
|
|
|
|
// Debug-Logging (kann später entfernt werden)
|
|
console.log(`[getCourses] Gefunden: ${courses.length} Kurse`, {
|
|
userId: user.id,
|
|
languageId,
|
|
nativeLanguageId,
|
|
search,
|
|
whereBefore: JSON.stringify(where, null, 2),
|
|
includePublic: includePublicBool,
|
|
includeOwn: includeOwnBool,
|
|
andConditionsLength: andConditions.length,
|
|
directWherePropsBefore: Object.keys(where).filter(key => key !== Op.and && key !== Op.or),
|
|
whereAfter: JSON.stringify(where, null, 2)
|
|
});
|
|
|
|
const coursesData = courses.map(c => c.get({ plain: true }));
|
|
|
|
// Lade Sprachnamen für alle Kurse
|
|
const languageIds = [...new Set(coursesData.map(c => c.languageId))];
|
|
if (languageIds.length > 0) {
|
|
const languages = await sequelize.query(
|
|
`SELECT id, name FROM community.vocab_language WHERE id IN (:languageIds)`,
|
|
{
|
|
replacements: { languageIds },
|
|
type: sequelize.QueryTypes.SELECT
|
|
}
|
|
);
|
|
if (Array.isArray(languages)) {
|
|
const languageMap = new Map(languages.map(l => [l.id, l.name]));
|
|
coursesData.forEach(c => {
|
|
c.languageName = languageMap.get(c.languageId) || null;
|
|
});
|
|
}
|
|
}
|
|
|
|
// Lade Muttersprachen-Namen für alle Kurse
|
|
const nativeLanguageIds = [...new Set(coursesData.map(c => c.nativeLanguageId).filter(id => id !== null))];
|
|
if (nativeLanguageIds.length > 0) {
|
|
const nativeLanguages = await sequelize.query(
|
|
`SELECT id, name FROM community.vocab_language WHERE id IN (:nativeLanguageIds)`,
|
|
{
|
|
replacements: { nativeLanguageIds },
|
|
type: sequelize.QueryTypes.SELECT
|
|
}
|
|
);
|
|
if (Array.isArray(nativeLanguages)) {
|
|
const nativeLanguageMap = new Map(nativeLanguages.map(l => [l.id, l.name]));
|
|
coursesData.forEach(c => {
|
|
c.nativeLanguageName = c.nativeLanguageId ? nativeLanguageMap.get(c.nativeLanguageId) || null : null;
|
|
});
|
|
}
|
|
}
|
|
|
|
return coursesData;
|
|
}
|
|
|
|
async getCourseByShareCode(hashedUserId, shareCode) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const code = typeof shareCode === 'string' ? shareCode.trim() : '';
|
|
|
|
if (!code || code.length < 6 || code.length > 128) {
|
|
const err = new Error('Invalid share code');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
const course = await VocabCourse.findOne({
|
|
where: { shareCode: code }
|
|
});
|
|
|
|
if (!course) {
|
|
const err = new Error('Course not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Zugriff (öffentlich oder Besitzer)
|
|
if (course.ownerUserId !== user.id && !course.isPublic) {
|
|
const err = new Error('Course is not public');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
return course.get({ plain: true });
|
|
}
|
|
|
|
async getCourse(hashedUserId, courseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const course = await VocabCourse.findByPk(courseId, {
|
|
include: [
|
|
{
|
|
model: VocabCourseLesson,
|
|
as: 'lessons',
|
|
order: [['lessonNumber', 'ASC']]
|
|
}
|
|
]
|
|
});
|
|
|
|
if (!course) {
|
|
const err = new Error('Course not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Zugriff
|
|
if (course.ownerUserId !== user.id && !course.isPublic) {
|
|
const err = new Error('Access denied');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const courseData = course.get({ plain: true });
|
|
courseData.lessons = courseData.lessons || [];
|
|
|
|
// Sortiere Lektionen nach Woche, Tag, dann Nummer
|
|
courseData.lessons.sort((a, b) => {
|
|
if (a.weekNumber !== b.weekNumber) {
|
|
return (a.weekNumber || 999) - (b.weekNumber || 999);
|
|
}
|
|
if (a.dayNumber !== b.dayNumber) {
|
|
return (a.dayNumber || 999) - (b.dayNumber || 999);
|
|
}
|
|
return a.lessonNumber - b.lessonNumber;
|
|
});
|
|
|
|
return courseData;
|
|
}
|
|
|
|
async updateCourse(hashedUserId, courseId, { title, description, languageId, nativeLanguageId, difficultyLevel, isPublic }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const course = await VocabCourse.findByPk(courseId);
|
|
|
|
if (!course) {
|
|
const err = new Error('Course not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can update the course');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const updates = {};
|
|
if (title !== undefined) updates.title = title;
|
|
if (description !== undefined) updates.description = description;
|
|
if (languageId !== undefined) updates.languageId = Number(languageId);
|
|
if (nativeLanguageId !== undefined) updates.nativeLanguageId = nativeLanguageId ? Number(nativeLanguageId) : null;
|
|
if (difficultyLevel !== undefined) updates.difficultyLevel = Number(difficultyLevel);
|
|
if (isPublic !== undefined) {
|
|
updates.isPublic = Boolean(isPublic);
|
|
// Generiere Share-Code wenn Kurs öffentlich wird
|
|
if (isPublic && !course.shareCode) {
|
|
updates.shareCode = crypto.randomBytes(8).toString('hex');
|
|
} else if (!isPublic) {
|
|
updates.shareCode = null;
|
|
}
|
|
}
|
|
|
|
await course.update(updates);
|
|
return course.get({ plain: true });
|
|
}
|
|
|
|
async deleteCourse(hashedUserId, courseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const course = await VocabCourse.findByPk(courseId);
|
|
|
|
if (!course) {
|
|
const err = new Error('Course not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can delete the course');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
await course.destroy();
|
|
return { success: true };
|
|
}
|
|
|
|
async getLesson(hashedUserId, lessonId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await VocabCourseLesson.findByPk(lessonId, {
|
|
include: [
|
|
{
|
|
model: VocabCourse,
|
|
as: 'course'
|
|
},
|
|
{
|
|
model: VocabGrammarExercise,
|
|
as: 'grammarExercises',
|
|
include: [
|
|
{
|
|
model: VocabGrammarExerciseType,
|
|
as: 'exerciseType'
|
|
}
|
|
],
|
|
required: false,
|
|
separate: true,
|
|
order: [['exerciseNumber', 'ASC']]
|
|
}
|
|
]
|
|
});
|
|
|
|
if (!lesson) {
|
|
const err = new Error('Lesson not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Zugriff
|
|
if (lesson.course.ownerUserId !== user.id && !lesson.course.isPublic) {
|
|
const err = new Error('Access denied');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const plainLesson = lesson.get({ plain: true });
|
|
|
|
// Lade Vokabeln aus vorherigen Lektionen (für Wiederholung UND für gemischten Vokabeltrainer)
|
|
if (plainLesson.lessonNumber > 1) {
|
|
plainLesson.previousLessonExercises = await this._getReviewVocabExercises(plainLesson.courseId, plainLesson.lessonNumber);
|
|
}
|
|
// Bei Wiederholungslektionen: Auch Lektions-Liste für Anzeige
|
|
if (plainLesson.lessonType === 'review' || plainLesson.lessonType === 'vocab_review') {
|
|
plainLesson.reviewLessons = await this._getReviewLessons(plainLesson.courseId, plainLesson.lessonNumber);
|
|
plainLesson.reviewVocabExercises = plainLesson.previousLessonExercises || [];
|
|
}
|
|
|
|
plainLesson.didactics = this._buildLessonDidactics(plainLesson);
|
|
return plainLesson;
|
|
}
|
|
|
|
async sendLessonAssistantMessage(hashedUserId, lessonId, payload = {}) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await this.getLesson(hashedUserId, lessonId);
|
|
const config = await this._getUserLlmConfig(user.id);
|
|
|
|
if (!config.enabled) {
|
|
const err = new Error('Der Sprachassistent ist in deinen Einstellungen derzeit deaktiviert.');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
if (!config.configured) {
|
|
const err = new Error('Der Sprachassistent ist noch nicht eingerichtet. Bitte hinterlege zuerst Modell und API-Zugang in den Einstellungen.');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
const message = String(payload?.message || '').trim();
|
|
if (!message) {
|
|
const err = new Error('Bitte gib eine Nachricht für den Sprachassistenten ein.');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
const mode = ['explain', 'practice', 'correct'].includes(payload?.mode) ? payload.mode : 'practice';
|
|
const history = this._sanitizeAssistantHistory(payload?.history);
|
|
const baseUrl = config.baseUrl || 'https://api.openai.com/v1';
|
|
const endpoint = `${baseUrl.replace(/\/$/, '')}/chat/completions`;
|
|
|
|
const headers = {
|
|
'Content-Type': 'application/json'
|
|
};
|
|
if (config.apiKey) {
|
|
headers.Authorization = `Bearer ${config.apiKey}`;
|
|
}
|
|
|
|
const controller = new AbortController();
|
|
const timeout = setTimeout(() => controller.abort(), 30000);
|
|
|
|
let response;
|
|
try {
|
|
response = await fetch(endpoint, {
|
|
method: 'POST',
|
|
headers,
|
|
signal: controller.signal,
|
|
body: JSON.stringify({
|
|
model: config.model,
|
|
temperature: 0.7,
|
|
messages: [
|
|
{
|
|
role: 'system',
|
|
content: this._buildLessonAssistantSystemPrompt(lesson, mode)
|
|
},
|
|
...history,
|
|
{
|
|
role: 'user',
|
|
content: message
|
|
}
|
|
]
|
|
})
|
|
});
|
|
} catch (error) {
|
|
const err = new Error(
|
|
error?.name === 'AbortError'
|
|
? 'Der Sprachassistent hat zu lange für eine Antwort gebraucht.'
|
|
: 'Der Sprachassistent konnte nicht erreicht werden.'
|
|
);
|
|
err.status = 502;
|
|
throw err;
|
|
} finally {
|
|
clearTimeout(timeout);
|
|
}
|
|
|
|
let responseData = null;
|
|
try {
|
|
responseData = await response.json();
|
|
} catch {
|
|
responseData = null;
|
|
}
|
|
|
|
if (!response.ok) {
|
|
const messageFromApi = responseData?.error?.message || responseData?.message || 'Der Sprachassistent hat die Anfrage abgelehnt.';
|
|
const err = new Error(messageFromApi);
|
|
err.status = response.status || 502;
|
|
throw err;
|
|
}
|
|
|
|
const reply = this._extractAssistantContent(responseData);
|
|
if (!reply) {
|
|
const err = new Error('Der Sprachassistent hat keine verwertbare Antwort geliefert.');
|
|
err.status = 502;
|
|
throw err;
|
|
}
|
|
|
|
return {
|
|
reply,
|
|
model: responseData?.model || config.model,
|
|
mode
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Sammelt alle Lektionen, die in einer Wiederholungslektion wiederholt werden sollen
|
|
*/
|
|
async _getReviewLessons(courseId, currentLessonNumber) {
|
|
const lessons = await VocabCourseLesson.findAll({
|
|
where: {
|
|
courseId: courseId,
|
|
lessonNumber: {
|
|
[Op.lt]: currentLessonNumber // Nur Lektionen mit kleinerer Nummer
|
|
},
|
|
lessonType: {
|
|
[Op.notIn]: ['review', 'vocab_review'] // Keine anderen Wiederholungslektionen
|
|
}
|
|
},
|
|
order: [['lessonNumber', 'ASC']],
|
|
attributes: ['id', 'lessonNumber', 'title']
|
|
});
|
|
return lessons.map(l => l.get({ plain: true }));
|
|
}
|
|
|
|
/**
|
|
* Sammelt alle Grammatik-Übungen aus vorherigen Lektionen für Wiederholungslektionen
|
|
*/
|
|
async _getReviewVocabExercises(courseId, currentLessonNumber) {
|
|
const previousLessons = await VocabCourseLesson.findAll({
|
|
where: {
|
|
courseId: courseId,
|
|
lessonNumber: {
|
|
[Op.lt]: currentLessonNumber
|
|
},
|
|
lessonType: {
|
|
[Op.notIn]: ['review', 'vocab_review']
|
|
}
|
|
},
|
|
attributes: ['id']
|
|
});
|
|
|
|
if (previousLessons.length === 0) {
|
|
return [];
|
|
}
|
|
|
|
const lessonIds = previousLessons.map(l => l.id);
|
|
const exercises = await VocabGrammarExercise.findAll({
|
|
where: {
|
|
lessonId: {
|
|
[Op.in]: lessonIds
|
|
}
|
|
},
|
|
include: [
|
|
{
|
|
model: VocabGrammarExerciseType,
|
|
as: 'exerciseType'
|
|
},
|
|
{
|
|
model: VocabCourseLesson,
|
|
as: 'lesson',
|
|
attributes: ['id', 'lessonNumber', 'title']
|
|
}
|
|
],
|
|
order: [
|
|
[{ model: VocabCourseLesson, as: 'lesson' }, 'lessonNumber', 'ASC'],
|
|
['exerciseNumber', 'ASC']
|
|
]
|
|
});
|
|
|
|
return exercises.map(e => e.get({ plain: true }));
|
|
}
|
|
|
|
async addLessonToCourse(hashedUserId, courseId, { chapterId, lessonNumber, title, description, weekNumber, dayNumber, lessonType, audioUrl, culturalNotes, learningGoals, corePatterns, grammarFocus, speakingPrompts, practicalTasks, targetMinutes, targetScorePercent, requiresReview }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const course = await VocabCourse.findByPk(courseId);
|
|
|
|
if (!course) {
|
|
const err = new Error('Course not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can add lessons');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe, ob Kapitel zur gleichen Sprache gehört (nur wenn chapterId angegeben)
|
|
if (chapterId) {
|
|
const [chapter] = await sequelize.query(
|
|
`SELECT language_id FROM community.vocab_chapter WHERE id = :chapterId`,
|
|
{
|
|
replacements: { chapterId: Number(chapterId) },
|
|
type: sequelize.QueryTypes.SELECT
|
|
}
|
|
);
|
|
|
|
if (!chapter || chapter.language_id !== course.languageId) {
|
|
const err = new Error('Chapter does not belong to the course language');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
const lesson = await VocabCourseLesson.create({
|
|
courseId: course.id,
|
|
chapterId: chapterId ? Number(chapterId) : null,
|
|
lessonNumber: Number(lessonNumber),
|
|
title,
|
|
description,
|
|
weekNumber: weekNumber ? Number(weekNumber) : null,
|
|
dayNumber: dayNumber ? Number(dayNumber) : null,
|
|
lessonType: lessonType || 'vocab',
|
|
audioUrl: audioUrl || null,
|
|
culturalNotes: culturalNotes || null,
|
|
learningGoals: this._normalizeStringList(learningGoals),
|
|
corePatterns: this._normalizeStringList(corePatterns),
|
|
grammarFocus: this._normalizeStructuredList(grammarFocus, ['title', 'text', 'example']),
|
|
speakingPrompts: this._normalizeStructuredList(speakingPrompts, ['title', 'prompt', 'cue']),
|
|
practicalTasks: this._normalizeStructuredList(practicalTasks, ['title', 'text']),
|
|
targetMinutes: targetMinutes ? Number(targetMinutes) : null,
|
|
targetScorePercent: targetScorePercent ? Number(targetScorePercent) : 80,
|
|
requiresReview: requiresReview !== undefined ? Boolean(requiresReview) : false
|
|
});
|
|
|
|
return lesson.get({ plain: true });
|
|
}
|
|
|
|
async updateLesson(hashedUserId, lessonId, { title, description, lessonNumber, weekNumber, dayNumber, lessonType, audioUrl, culturalNotes, learningGoals, corePatterns, grammarFocus, speakingPrompts, practicalTasks, targetMinutes, targetScorePercent, requiresReview }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await VocabCourseLesson.findByPk(lessonId, {
|
|
include: [{ model: VocabCourse, as: 'course' }]
|
|
});
|
|
|
|
if (!lesson) {
|
|
const err = new Error('Lesson not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (lesson.course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can update lessons');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const updates = {};
|
|
if (title !== undefined) updates.title = title;
|
|
if (description !== undefined) updates.description = description;
|
|
if (lessonNumber !== undefined) updates.lessonNumber = Number(lessonNumber);
|
|
if (weekNumber !== undefined) updates.weekNumber = weekNumber ? Number(weekNumber) : null;
|
|
if (dayNumber !== undefined) updates.dayNumber = dayNumber ? Number(dayNumber) : null;
|
|
if (lessonType !== undefined) updates.lessonType = lessonType;
|
|
if (audioUrl !== undefined) updates.audioUrl = audioUrl;
|
|
if (culturalNotes !== undefined) updates.culturalNotes = culturalNotes;
|
|
if (learningGoals !== undefined) updates.learningGoals = this._normalizeStringList(learningGoals);
|
|
if (corePatterns !== undefined) updates.corePatterns = this._normalizeStringList(corePatterns);
|
|
if (grammarFocus !== undefined) updates.grammarFocus = this._normalizeStructuredList(grammarFocus, ['title', 'text', 'example']);
|
|
if (speakingPrompts !== undefined) updates.speakingPrompts = this._normalizeStructuredList(speakingPrompts, ['title', 'prompt', 'cue']);
|
|
if (practicalTasks !== undefined) updates.practicalTasks = this._normalizeStructuredList(practicalTasks, ['title', 'text']);
|
|
if (targetMinutes !== undefined) updates.targetMinutes = targetMinutes ? Number(targetMinutes) : null;
|
|
if (targetScorePercent !== undefined) updates.targetScorePercent = Number(targetScorePercent);
|
|
if (requiresReview !== undefined) updates.requiresReview = Boolean(requiresReview);
|
|
|
|
await lesson.update(updates);
|
|
return lesson.get({ plain: true });
|
|
}
|
|
|
|
async deleteLesson(hashedUserId, lessonId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await VocabCourseLesson.findByPk(lessonId, {
|
|
include: [{ model: VocabCourse, as: 'course' }]
|
|
});
|
|
|
|
if (!lesson) {
|
|
const err = new Error('Lesson not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (lesson.course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can delete lessons');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
await lesson.destroy();
|
|
return { success: true };
|
|
}
|
|
|
|
async enrollInCourse(hashedUserId, courseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const course = await VocabCourse.findByPk(courseId);
|
|
|
|
if (!course) {
|
|
const err = new Error('Course not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Zugriff
|
|
if (course.ownerUserId !== user.id && !course.isPublic) {
|
|
const err = new Error('Course is not public');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const [enrollment, created] = await VocabCourseEnrollment.findOrCreate({
|
|
where: { userId: user.id, courseId: course.id },
|
|
defaults: { userId: user.id, courseId: course.id }
|
|
});
|
|
|
|
if (!created) {
|
|
const err = new Error('Already enrolled in this course');
|
|
err.status = 400;
|
|
throw err;
|
|
}
|
|
|
|
return enrollment.get({ plain: true });
|
|
}
|
|
|
|
async unenrollFromCourse(hashedUserId, courseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const enrollment = await VocabCourseEnrollment.findOne({
|
|
where: { userId: user.id, courseId: Number(courseId) }
|
|
});
|
|
|
|
if (!enrollment) {
|
|
const err = new Error('Not enrolled in this course');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
await enrollment.destroy();
|
|
return { success: true };
|
|
}
|
|
|
|
async getMyCourses(hashedUserId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
|
|
const enrollments = await VocabCourseEnrollment.findAll({
|
|
where: { userId: user.id },
|
|
include: [{ model: VocabCourse, as: 'course' }],
|
|
order: [['enrolledAt', 'DESC']]
|
|
});
|
|
|
|
return enrollments.map(e => ({
|
|
...e.course.get({ plain: true }),
|
|
enrolledAt: e.enrolledAt
|
|
}));
|
|
}
|
|
|
|
async getCourseProgress(hashedUserId, courseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
|
|
// Prüfe Einschreibung
|
|
const enrollment = await VocabCourseEnrollment.findOne({
|
|
where: { userId: user.id, courseId: Number(courseId) }
|
|
});
|
|
|
|
if (!enrollment) {
|
|
const err = new Error('Not enrolled in this course');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const progress = await VocabCourseProgress.findAll({
|
|
where: { userId: user.id, courseId: Number(courseId) },
|
|
include: [{ model: VocabCourseLesson, as: 'lesson' }],
|
|
order: [[{ model: VocabCourseLesson, as: 'lesson' }, 'lessonNumber', 'ASC']]
|
|
});
|
|
|
|
return progress.map(p => p.get({ plain: true }));
|
|
}
|
|
|
|
async updateLessonProgress(hashedUserId, lessonId, { completed, score, timeSpentMinutes }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await VocabCourseLesson.findByPk(lessonId, {
|
|
include: [{ model: VocabCourse, as: 'course' }]
|
|
});
|
|
|
|
if (!lesson) {
|
|
const err = new Error('Lesson not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Einschreibung
|
|
const enrollment = await VocabCourseEnrollment.findOne({
|
|
where: { userId: user.id, courseId: lesson.courseId }
|
|
});
|
|
|
|
if (!enrollment) {
|
|
const err = new Error('Not enrolled in this course');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const lessonData = await VocabCourseLesson.findByPk(lesson.id);
|
|
const targetScore = lessonData.targetScorePercent || 80;
|
|
const actualScore = Number(score) || 0;
|
|
const hasReachedTarget = actualScore >= targetScore;
|
|
|
|
// Prüfe, ob Lektion als abgeschlossen gilt (nur wenn Ziel erreicht oder explizit completed=true)
|
|
const isCompleted = Boolean(completed) || (hasReachedTarget && lessonData.requiresReview === false);
|
|
|
|
const [progress, created] = await VocabCourseProgress.findOrCreate({
|
|
where: { userId: user.id, lessonId: lesson.id },
|
|
defaults: {
|
|
userId: user.id,
|
|
courseId: lesson.courseId,
|
|
lessonId: lesson.id,
|
|
completed: isCompleted,
|
|
score: actualScore,
|
|
lastAccessedAt: new Date()
|
|
}
|
|
});
|
|
|
|
if (!created) {
|
|
const updates = { lastAccessedAt: new Date() };
|
|
if (score !== undefined) {
|
|
updates.score = Math.max(progress.score, actualScore);
|
|
// Prüfe, ob Ziel jetzt erreicht wurde
|
|
if (updates.score >= targetScore && !progress.completed) {
|
|
if (!lessonData.requiresReview) {
|
|
updates.completed = true;
|
|
updates.completedAt = new Date();
|
|
}
|
|
}
|
|
}
|
|
if (completed !== undefined) {
|
|
updates.completed = Boolean(completed);
|
|
if (completed && !progress.completedAt) {
|
|
updates.completedAt = new Date();
|
|
}
|
|
}
|
|
await progress.update(updates);
|
|
} else if (isCompleted) {
|
|
progress.completed = true;
|
|
progress.completedAt = new Date();
|
|
await progress.save();
|
|
}
|
|
|
|
const progressData = progress.get({ plain: true });
|
|
progressData.targetScore = targetScore;
|
|
progressData.hasReachedTarget = progressData.score >= targetScore;
|
|
progressData.needsReview = lessonData.requiresReview && !progressData.hasReachedTarget;
|
|
|
|
return progressData;
|
|
}
|
|
|
|
// ========== GRAMMAR EXERCISE METHODS ==========
|
|
|
|
async getExerciseTypes() {
|
|
const types = await VocabGrammarExerciseType.findAll({
|
|
order: [['name', 'ASC']]
|
|
});
|
|
return types.map(t => t.get({ plain: true }));
|
|
}
|
|
|
|
async createGrammarExercise(hashedUserId, lessonId, { exerciseTypeId, exerciseNumber, title, instruction, questionData, answerData, explanation }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await VocabCourseLesson.findByPk(lessonId, {
|
|
include: [{ model: VocabCourse, as: 'course' }]
|
|
});
|
|
|
|
if (!lesson) {
|
|
const err = new Error('Lesson not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe, ob User Besitzer des Kurses ist
|
|
if (lesson.course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can add grammar exercises');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const exercise = await VocabGrammarExercise.create({
|
|
lessonId: lesson.id,
|
|
exerciseTypeId: Number(exerciseTypeId),
|
|
exerciseNumber: Number(exerciseNumber),
|
|
title,
|
|
instruction,
|
|
questionData,
|
|
answerData,
|
|
explanation,
|
|
createdByUserId: user.id
|
|
});
|
|
|
|
return exercise.get({ plain: true });
|
|
}
|
|
|
|
async getGrammarExercisesForLesson(hashedUserId, lessonId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const lesson = await VocabCourseLesson.findByPk(lessonId, {
|
|
include: [{ model: VocabCourse, as: 'course' }]
|
|
});
|
|
|
|
if (!lesson) {
|
|
const err = new Error('Lesson not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Zugriff
|
|
if (lesson.course.ownerUserId !== user.id && !lesson.course.isPublic) {
|
|
const err = new Error('Access denied');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const exercises = await VocabGrammarExercise.findAll({
|
|
where: { lessonId: lesson.id },
|
|
include: [{ model: VocabGrammarExerciseType, as: 'exerciseType' }],
|
|
order: [['exerciseNumber', 'ASC']]
|
|
});
|
|
|
|
return exercises.map(e => e.get({ plain: true }));
|
|
}
|
|
|
|
async getGrammarExercise(hashedUserId, exerciseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const exercise = await VocabGrammarExercise.findByPk(exerciseId, {
|
|
include: [
|
|
{ model: VocabCourseLesson, as: 'lesson', include: [{ model: VocabCourse, as: 'course' }] },
|
|
{ model: VocabGrammarExerciseType, as: 'exerciseType' }
|
|
]
|
|
});
|
|
|
|
if (!exercise) {
|
|
const err = new Error('Exercise not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Zugriff
|
|
if (exercise.lesson.course.ownerUserId !== user.id && !exercise.lesson.course.isPublic) {
|
|
const err = new Error('Access denied');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
return exercise.get({ plain: true });
|
|
}
|
|
|
|
async checkGrammarExerciseAnswer(hashedUserId, exerciseId, userAnswer) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const exercise = await VocabGrammarExercise.findByPk(exerciseId, {
|
|
include: [
|
|
{ model: VocabCourseLesson, as: 'lesson', include: [{ model: VocabCourse, as: 'course' }] }
|
|
]
|
|
});
|
|
|
|
if (!exercise) {
|
|
const err = new Error('Exercise not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
// Prüfe Einschreibung
|
|
const enrollment = await VocabCourseEnrollment.findOne({
|
|
where: { userId: user.id, courseId: exercise.lesson.courseId }
|
|
});
|
|
|
|
if (!enrollment) {
|
|
const err = new Error('Not enrolled in this course');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
// Überprüfe Antwort (vereinfachte Logik - kann je nach Übungstyp erweitert werden)
|
|
const isCorrect = this._checkAnswer(exercise.answerData, exercise.questionData, userAnswer, exercise.exerciseTypeId);
|
|
|
|
// Speichere Fortschritt
|
|
const [progress, created] = await VocabGrammarExerciseProgress.findOrCreate({
|
|
where: { userId: user.id, exerciseId: exercise.id },
|
|
defaults: {
|
|
userId: user.id,
|
|
exerciseId: exercise.id,
|
|
attempts: 1,
|
|
correctAttempts: isCorrect ? 1 : 0,
|
|
lastAttemptAt: new Date(),
|
|
completed: false
|
|
}
|
|
});
|
|
|
|
if (!created) {
|
|
progress.attempts += 1;
|
|
if (isCorrect) {
|
|
progress.correctAttempts += 1;
|
|
if (!progress.completed) {
|
|
progress.completed = true;
|
|
progress.completedAt = new Date();
|
|
}
|
|
}
|
|
progress.lastAttemptAt = new Date();
|
|
await progress.save();
|
|
} else if (isCorrect) {
|
|
progress.completed = true;
|
|
progress.completedAt = new Date();
|
|
await progress.save();
|
|
}
|
|
|
|
// Extrahiere richtige Antwort und Alternativen
|
|
const answerData = typeof exercise.answerData === 'string'
|
|
? JSON.parse(exercise.answerData)
|
|
: exercise.answerData;
|
|
const questionData = typeof exercise.questionData === 'string'
|
|
? JSON.parse(exercise.questionData)
|
|
: exercise.questionData;
|
|
|
|
let correctAnswer = null;
|
|
let alternatives = [];
|
|
|
|
// Für Multiple Choice: Extrahiere die richtige(n) Antwort(en) aus dem Index/den Indizes
|
|
if (exercise.exerciseTypeId === 2 && answerData.correctAnswer !== undefined) {
|
|
const options = questionData?.options || [];
|
|
|
|
// Unterstütze sowohl einzelne korrekte Antwort als auch Array von korrekten Antworten
|
|
let correctIndices = [];
|
|
if (Array.isArray(answerData.correctAnswer)) {
|
|
correctIndices = answerData.correctAnswer.map(idx => Number(idx));
|
|
} else {
|
|
correctIndices = [Number(answerData.correctAnswer)];
|
|
}
|
|
|
|
// Extrahiere alle korrekten Antworten
|
|
const correctAnswersList = correctIndices
|
|
.map(idx => options[idx])
|
|
.filter(opt => opt !== undefined);
|
|
|
|
if (correctAnswersList.length > 0) {
|
|
// Wenn mehrere richtige Antworten: Zeige alle an, getrennt durch " / "
|
|
correctAnswer = correctAnswersList.join(' / ');
|
|
}
|
|
|
|
// Alternativen sind alle anderen Optionen (nicht korrekte)
|
|
alternatives = options.filter((opt, idx) => !correctIndices.includes(idx));
|
|
}
|
|
// Für Gap Fill: Extrahiere aus answers Array
|
|
else if (exercise.exerciseTypeId === 1 && answerData.answers) {
|
|
correctAnswer = Array.isArray(answerData.answers)
|
|
? answerData.answers.join(', ')
|
|
: answerData.answers;
|
|
}
|
|
// Für Reading Aloud: Extrahiere den erwarteten Text
|
|
else if (questionData.type === 'reading_aloud') {
|
|
correctAnswer = questionData.text || answerData.expectedText || '';
|
|
}
|
|
// Für Speaking From Memory: Extrahiere erwarteten Text oder Schlüsselwörter
|
|
else if (questionData.type === 'speaking_from_memory') {
|
|
correctAnswer = questionData.expectedText || questionData.text || '';
|
|
alternatives = questionData.keywords || [];
|
|
}
|
|
else if (questionData.type === 'sentence_building' || questionData.type === 'dialog_completion' || questionData.type === 'situational_response' || questionData.type === 'pattern_drill') {
|
|
const rawCorrect = answerData.correct ?? answerData.correctAnswer ?? answerData.answers ?? answerData.modelAnswer;
|
|
if (Array.isArray(rawCorrect)) {
|
|
correctAnswer = rawCorrect.join(' / ');
|
|
} else {
|
|
correctAnswer = rawCorrect || questionData.modelAnswer || '';
|
|
}
|
|
alternatives = answerData.alternatives || questionData.keywords || [];
|
|
}
|
|
// Fallback: Versuche correct oder correctAnswer
|
|
else {
|
|
correctAnswer = Array.isArray(answerData.correct)
|
|
? answerData.correct[0]
|
|
: (answerData.correct || answerData.correctAnswer);
|
|
alternatives = answerData.alternatives || [];
|
|
}
|
|
|
|
return {
|
|
correct: isCorrect,
|
|
correctAnswer: correctAnswer,
|
|
alternatives: alternatives,
|
|
explanation: exercise.explanation,
|
|
progress: progress.get({ plain: true })
|
|
};
|
|
}
|
|
|
|
async _getExerciseTypeIdByName(typeName) {
|
|
const type = await VocabGrammarExerciseType.findOne({ where: { name: typeName } });
|
|
return type ? type.id : null;
|
|
}
|
|
|
|
_checkAnswer(answerData, questionData, userAnswer, exerciseTypeId) {
|
|
// Vereinfachte Antwortprüfung - kann je nach Übungstyp erweitert werden
|
|
if (!answerData || userAnswer === undefined || userAnswer === null) return false;
|
|
|
|
// Parse JSON strings
|
|
const parsedAnswerData = typeof answerData === 'string' ? JSON.parse(answerData) : answerData;
|
|
const parsedQuestionData = typeof questionData === 'string' ? JSON.parse(questionData) : questionData;
|
|
|
|
// Für Multiple Choice: Prüfe ob userAnswer (Index) mit correctAnswer (Index oder Array von Indizes) übereinstimmt
|
|
if (exerciseTypeId === 2) { // multiple_choice
|
|
// Unterstütze sowohl einzelne korrekte Antwort als auch Array von korrekten Antworten
|
|
let correctIndices = [];
|
|
|
|
if (parsedAnswerData.correctAnswer !== undefined) {
|
|
// Kann ein einzelner Index oder ein Array von Indizes sein
|
|
if (Array.isArray(parsedAnswerData.correctAnswer)) {
|
|
correctIndices = parsedAnswerData.correctAnswer.map(idx => Number(idx));
|
|
} else {
|
|
correctIndices = [Number(parsedAnswerData.correctAnswer)];
|
|
}
|
|
} else if (parsedAnswerData.correct !== undefined) {
|
|
// Fallback: Prüfe auch 'correct' Feld
|
|
if (Array.isArray(parsedAnswerData.correct)) {
|
|
correctIndices = parsedAnswerData.correct.map(idx => Number(idx));
|
|
} else {
|
|
correctIndices = [Number(parsedAnswerData.correct)];
|
|
}
|
|
}
|
|
|
|
if (correctIndices.length === 0) return false;
|
|
|
|
// userAnswer ist der Index (0, 1, 2, ...)
|
|
const userIndex = Number(userAnswer);
|
|
return correctIndices.includes(userIndex);
|
|
}
|
|
|
|
// Für Lückentext: Normalisiere und vergleiche
|
|
if (exerciseTypeId === 1) { // gap_fill
|
|
const normalize = (str) => String(str || '').trim().toLowerCase();
|
|
const correctAnswers = parsedAnswerData.answers || parsedAnswerData.correct || [];
|
|
const correctAnswersArray = Array.isArray(correctAnswers) ? correctAnswers : [correctAnswers];
|
|
|
|
// userAnswer ist ein Array von Antworten
|
|
if (Array.isArray(userAnswer)) {
|
|
if (userAnswer.length !== correctAnswersArray.length) return false;
|
|
return userAnswer.every((ans, idx) => {
|
|
const correct = correctAnswersArray[idx];
|
|
return normalize(ans) === normalize(correct);
|
|
});
|
|
} else {
|
|
// Fallback: Einzelne Antwort
|
|
const normalizedUserAnswer = normalize(userAnswer);
|
|
return correctAnswersArray.some(correct => normalize(correct) === normalizedUserAnswer);
|
|
}
|
|
}
|
|
|
|
// Für Reading Aloud: userAnswer ist der erkannte Text (String)
|
|
// Vergleiche mit dem erwarteten Text aus questionData.text
|
|
if (parsedQuestionData.type === 'reading_aloud' || parsedQuestionData.type === 'speaking_from_memory') {
|
|
const expectedText = parsedQuestionData.text || parsedQuestionData.expectedText || '';
|
|
const normalizedExpected = this._normalizeTextAnswer(expectedText);
|
|
const normalizedUser = this._normalizeTextAnswer(userAnswer);
|
|
|
|
// Für reading_aloud: Exakter Vergleich oder Levenshtein-Distanz
|
|
if (parsedQuestionData.type === 'reading_aloud') {
|
|
// Exakter Vergleich (kann später mit Levenshtein erweitert werden)
|
|
return normalizedUser === normalizedExpected;
|
|
}
|
|
|
|
// Für speaking_from_memory: Flexibler Vergleich (Schlüsselwörter)
|
|
if (parsedQuestionData.type === 'speaking_from_memory') {
|
|
const keywords = parsedQuestionData.keywords || [];
|
|
if (keywords.length === 0) {
|
|
// Fallback: Exakter Vergleich
|
|
return normalizedUser === normalizedExpected;
|
|
}
|
|
// Prüfe ob alle Schlüsselwörter vorhanden sind
|
|
return keywords.every(keyword => normalizedUser.includes(this._normalizeTextAnswer(keyword)));
|
|
}
|
|
}
|
|
|
|
if (parsedQuestionData.type === 'sentence_building' || parsedQuestionData.type === 'dialog_completion' || parsedQuestionData.type === 'situational_response' || parsedQuestionData.type === 'pattern_drill') {
|
|
const candidateAnswers = parsedAnswerData.correct ?? parsedAnswerData.correctAnswer ?? parsedAnswerData.answers ?? parsedAnswerData.modelAnswer ?? [];
|
|
const normalizedUser = this._normalizeTextAnswer(userAnswer);
|
|
const answers = Array.isArray(candidateAnswers) ? candidateAnswers : [candidateAnswers];
|
|
|
|
if (parsedQuestionData.type === 'situational_response') {
|
|
const keywords = parsedQuestionData.keywords || parsedAnswerData.keywords || [];
|
|
if (keywords.length > 0) {
|
|
return keywords.every((keyword) => normalizedUser.includes(this._normalizeTextAnswer(keyword)));
|
|
}
|
|
}
|
|
|
|
return answers
|
|
.map((answer) => this._normalizeTextAnswer(answer))
|
|
.filter(Boolean)
|
|
.some((answer) => answer === normalizedUser);
|
|
}
|
|
|
|
// Für andere Typen: einfacher String-Vergleich (kann später erweitert werden)
|
|
const correctAnswers = parsedAnswerData.correct || parsedAnswerData.correctAnswer || [];
|
|
const correctAnswersArray = Array.isArray(correctAnswers) ? correctAnswers : [correctAnswers];
|
|
const normalizedUserAnswer = this._normalizeTextAnswer(userAnswer);
|
|
return correctAnswersArray.some(correct => this._normalizeTextAnswer(correct) === normalizedUserAnswer);
|
|
}
|
|
|
|
async getGrammarExerciseProgress(hashedUserId, lessonId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const exercises = await this.getGrammarExercisesForLesson(hashedUserId, lessonId);
|
|
|
|
const exerciseIds = exercises.map(e => e.id);
|
|
const progress = await VocabGrammarExerciseProgress.findAll({
|
|
where: {
|
|
userId: user.id,
|
|
exerciseId: { [Op.in]: exerciseIds }
|
|
}
|
|
});
|
|
|
|
const progressMap = new Map(progress.map(p => [p.exerciseId, p.get({ plain: true })]));
|
|
|
|
return exercises.map(exercise => ({
|
|
...exercise,
|
|
progress: progressMap.get(exercise.id) || null
|
|
}));
|
|
}
|
|
|
|
async updateGrammarExercise(hashedUserId, exerciseId, { title, instruction, questionData, answerData, explanation, exerciseNumber }) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const exercise = await VocabGrammarExercise.findByPk(exerciseId, {
|
|
include: [
|
|
{ model: VocabCourseLesson, as: 'lesson', include: [{ model: VocabCourse, as: 'course' }] }
|
|
]
|
|
});
|
|
|
|
if (!exercise) {
|
|
const err = new Error('Exercise not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (exercise.lesson.course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can update exercises');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
const updates = {};
|
|
if (title !== undefined) updates.title = title;
|
|
if (instruction !== undefined) updates.instruction = instruction;
|
|
if (questionData !== undefined) updates.questionData = questionData;
|
|
if (answerData !== undefined) updates.answerData = answerData;
|
|
if (explanation !== undefined) updates.explanation = explanation;
|
|
if (exerciseNumber !== undefined) updates.exerciseNumber = Number(exerciseNumber);
|
|
|
|
await exercise.update(updates);
|
|
return exercise.get({ plain: true });
|
|
}
|
|
|
|
async deleteGrammarExercise(hashedUserId, exerciseId) {
|
|
const user = await this._getUserByHashedId(hashedUserId);
|
|
const exercise = await VocabGrammarExercise.findByPk(exerciseId, {
|
|
include: [
|
|
{ model: VocabCourseLesson, as: 'lesson', include: [{ model: VocabCourse, as: 'course' }] }
|
|
]
|
|
});
|
|
|
|
if (!exercise) {
|
|
const err = new Error('Exercise not found');
|
|
err.status = 404;
|
|
throw err;
|
|
}
|
|
|
|
if (exercise.lesson.course.ownerUserId !== user.id) {
|
|
const err = new Error('Only the owner can delete exercises');
|
|
err.status = 403;
|
|
throw err;
|
|
}
|
|
|
|
await exercise.destroy();
|
|
return { success: true };
|
|
}
|
|
}
|