feat(bisaya-course): add new lesson and update course creation logic

- Introduced a new lesson titled "Zahlen & Preise" to enhance the numerical curriculum in Bisaya. - Updated the course creation logic to check for existing "Familien"-Bisaya courses, ensuring idempotency in course creation. - Enhanced the lesson didactics by mapping legacy titles to current lesson keys, improving data consistency. - Adjusted the course generation script to limit Bisaya courses to German-speaking learners only, streamlining course offerings.
2026-04-16 22:16:23 +02:00
parent 6dce418728
commit 68ac5ec281
6 changed files with 406 additions and 21 deletions
--- a/backend/scripts/dedupe-bisaya-family-courses.js
+++ b/backend/scripts/dedupe-bisaya-family-courses.js
@@ -0,0 +1,139 @@
+#!/usr/bin/env node
+/**
+ * Entfernt doppelte „Bisaya für Familien - Alltag & Stabilisierung“-Kurse und behält
+ * den Kurs mit der kleinsten ID (üblicherweise der erste / in der UI verlinkte).
+ *
+ * Standard: Nur Anzeige (Dry-Run). Löschen nur mit:
+ *   VOCAB_DEDUPE_BISAYA_FAMILY_APPLY=1 node backend/scripts/dedupe-bisaya-family-courses.js
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+
+const CANONICAL_TITLE = 'Bisaya für Familien - Alltag & Stabilisierung';
+
+async function deleteCourseCascade(courseId, transaction) {
+  const lessonRows = await sequelize.query(
+    `SELECT id FROM community.vocab_course_lesson WHERE course_id = :cid`,
+    { replacements: { cid: courseId }, transaction, type: sequelize.QueryTypes.SELECT }
+  );
+  const lessonIds = lessonRows.map((r) => r.id);
+
+  if (lessonIds.length > 0) {
+    const exRows = await sequelize.query(
+      `SELECT id FROM community.vocab_grammar_exercise WHERE lesson_id IN (:lids)`,
+      { replacements: { lids: lessonIds }, transaction, type: sequelize.QueryTypes.SELECT }
+    );
+    const exerciseIds = exRows.map((r) => r.id);
+
+    if (exerciseIds.length > 0) {
+      await sequelize.query(
+        `DELETE FROM community.vocab_grammar_exercise_progress WHERE exercise_id IN (:eids)`,
+        { replacements: { eids: exerciseIds }, transaction }
+      );
+      await sequelize.query(`DELETE FROM community.vocab_grammar_exercise WHERE id IN (:eids)`, {
+        replacements: { eids: exerciseIds },
+        transaction
+      });
+    }
+
+    await sequelize.query(
+      `DELETE FROM community.vocab_course_progress WHERE lesson_id IN (:lids) OR course_id = :cid`,
+      { replacements: { lids: lessonIds, cid: courseId }, transaction }
+    );
+    await sequelize.query(
+      `DELETE FROM community.vocab_course_lesson WHERE course_id = :cid`,
+      { replacements: { cid: courseId }, transaction }
+    );
+  } else {
+    await sequelize.query(
+      `DELETE FROM community.vocab_course_progress WHERE course_id = :cid`,
+      { replacements: { cid: courseId }, transaction }
+    );
+  }
+
+  await sequelize.query(
+    `DELETE FROM community.vocab_course_enrollment WHERE course_id = :cid`,
+    { replacements: { cid: courseId }, transaction }
+  );
+  await sequelize.query(`DELETE FROM community.vocab_course WHERE id = :cid`, {
+    replacements: { cid: courseId },
+    transaction
+  });
+}
+
+async function main() {
+  const apply = process.env.VOCAB_DEDUPE_BISAYA_FAMILY_APPLY === '1';
+  await sequelize.authenticate();
+
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    { type: sequelize.QueryTypes.SELECT }
+  );
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    process.exit(1);
+  }
+
+  const courses = await sequelize.query(
+    `SELECT id, title, owner_user_id AS "ownerUserId", created_at AS "createdAt"
+     FROM community.vocab_course
+     WHERE language_id = :languageId AND title = :title
+     ORDER BY id ASC`,
+    {
+      replacements: { languageId: bisayaLanguage.id, title: CANONICAL_TITLE },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (courses.length <= 1) {
+    console.log(
+      courses.length === 0
+        ? `Kein Kurs mit Titel „${CANONICAL_TITLE}“ gefunden.`
+        : `Nur ein Kurs – nichts zu bereinigen (ID ${courses[0].id}).`
+    );
+    await sequelize.close();
+    return;
+  }
+
+  const keep = courses[0];
+  const remove = courses.slice(1);
+
+  console.log(`Behalten: Kurs-ID ${keep.id} (älteste ID)\n`);
+  console.log(`${apply ? 'Löschen' : 'Würde löschen'} (${remove.length} Duplikate):`);
+  for (const c of remove) {
+    const stat = await sequelize.query(
+      `SELECT
+         (SELECT COUNT(*)::int FROM community.vocab_course_enrollment WHERE course_id = :cid) AS enroll,
+         (SELECT COUNT(*)::int FROM community.vocab_course_progress WHERE course_id = :cid) AS prog`,
+      { replacements: { cid: c.id }, type: sequelize.QueryTypes.SELECT }
+    );
+    const row = stat[0];
+    console.log(
+      `   – ID ${c.id} (owner ${c.ownerUserId}, Enrollments ${row?.enroll ?? '?'}, Fortschrittszeilen ${row?.prog ?? '?'})`
+    );
+  }
+
+  if (!apply) {
+    console.log(
+      '\nDry-Run. Zum tatsächlichen Löschen: VOCAB_DEDUPE_BISAYA_FAMILY_APPLY=1 node backend/scripts/dedupe-bisaya-family-courses.js'
+    );
+    await sequelize.close();
+    return;
+  }
+
+  await sequelize.transaction(async (t) => {
+    for (const c of remove) {
+      await deleteCourseCascade(c.id, t);
+      console.log(`🗑️  Kurs ${c.id} entfernt.`);
+    }
+  });
+
+  console.log(`\n✅ Fertig. Verbleibender Kurs: ID ${keep.id}`);
+  await sequelize.close();
+}
+
+main().catch((e) => {
+  console.error('❌ Fehler:', e);
+  sequelize.close();
+  process.exit(1);
+});