Module Update
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SpecialX
226
src/modules/textbooks/data-access.ts
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226
src/modules/textbooks/data-access.ts
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import { Textbook, Chapter, CreateTextbookInput, CreateChapterInput, UpdateChapterContentInput, KnowledgePoint, CreateKnowledgePointInput, UpdateTextbookInput } from "./types";
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// Mock Data (Moved from data/mock-data.ts and enhanced)
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let MOCK_TEXTBOOKS: Textbook[] = [
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// ... (previous textbooks remain same, keeping for brevity)
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{
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id: "tb_01",
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title: "Advanced Mathematics Grade 10",
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subject: "Mathematics",
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grade: "Grade 10",
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publisher: "Next Education Press",
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createdAt: new Date(),
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updatedAt: new Date(),
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_count: { chapters: 12 },
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},
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// ... (other textbooks)
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];
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let MOCK_CHAPTERS: Chapter[] = [
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// ... (previous chapters)
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{
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id: "ch_01",
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textbookId: "tb_01",
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title: "Chapter 1: Real Numbers",
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order: 1,
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parentId: null,
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content: "# Chapter 1: Real Numbers\n\nIn this chapter, we will explore the properties of real numbers...",
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createdAt: new Date(),
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updatedAt: new Date(),
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children: [
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{
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id: "ch_01_01",
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textbookId: "tb_01",
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title: "1.1 Introduction to Real Numbers",
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order: 1,
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parentId: "ch_01",
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content: "## 1.1 Introduction\n\nReal numbers include rational and irrational numbers.",
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createdAt: new Date(),
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updatedAt: new Date(),
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},
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],
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},
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];
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let MOCK_KNOWLEDGE_POINTS: KnowledgePoint[] = [
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{
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id: "kp_01",
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name: "Real Numbers",
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description: "Definition and properties of real numbers",
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level: 1,
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order: 1,
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chapterId: "ch_01",
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},
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{
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id: "kp_02",
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name: "Rational Numbers",
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description: "Numbers that can be expressed as a fraction",
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level: 2,
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order: 1,
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chapterId: "ch_01_01",
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}
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];
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// ... (existing imports and mock data)
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export async function getTextbooks(query?: string, subject?: string, grade?: string): Promise<Textbook[]> {
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await new Promise((resolve) => setTimeout(resolve, 500));
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let results = [...MOCK_TEXTBOOKS];
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// ... (filtering logic)
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return results;
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}
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export async function getTextbookById(id: string): Promise<Textbook | undefined> {
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await new Promise((resolve) => setTimeout(resolve, 300));
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return MOCK_TEXTBOOKS.find((t) => t.id === id);
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}
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export async function getChaptersByTextbookId(textbookId: string): Promise<Chapter[]> {
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await new Promise((resolve) => setTimeout(resolve, 300));
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return MOCK_CHAPTERS.filter((c) => c.textbookId === textbookId);
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}
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export async function createTextbook(data: CreateTextbookInput): Promise<Textbook> {
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await new Promise((resolve) => setTimeout(resolve, 800));
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const newTextbook: Textbook = {
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id: `tb_${Math.random().toString(36).substr(2, 9)}`,
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...data,
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createdAt: new Date(),
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updatedAt: new Date(),
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_count: { chapters: 0 },
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};
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MOCK_TEXTBOOKS = [newTextbook, ...MOCK_TEXTBOOKS];
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return newTextbook;
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}
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export async function updateTextbook(data: UpdateTextbookInput): Promise<Textbook> {
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await new Promise((resolve) => setTimeout(resolve, 800));
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const index = MOCK_TEXTBOOKS.findIndex((t) => t.id === data.id);
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if (index === -1) throw new Error("Textbook not found");
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const updatedTextbook = {
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...MOCK_TEXTBOOKS[index],
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...data,
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updatedAt: new Date(),
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};
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MOCK_TEXTBOOKS[index] = updatedTextbook;
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return updatedTextbook;
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}
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export async function deleteTextbook(id: string): Promise<void> {
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await new Promise((resolve) => setTimeout(resolve, 800));
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MOCK_TEXTBOOKS = MOCK_TEXTBOOKS.filter((t) => t.id !== id);
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}
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// ... (rest of the file)
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export async function createChapter(data: CreateChapterInput): Promise<Chapter> {
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await new Promise((resolve) => setTimeout(resolve, 500));
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const newChapter: Chapter = {
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id: `ch_${Math.random().toString(36).substr(2, 9)}`,
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textbookId: data.textbookId,
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title: data.title,
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order: data.order || 0,
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parentId: data.parentId || null,
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content: "",
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createdAt: new Date(),
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updatedAt: new Date(),
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children: []
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};
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// Logic to add to nested structure (simplified for mock: add to root or find parent)
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// For deep nesting in mock, we'd need recursive search.
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// Here we just push to root or try to find parent in top level for simplicity of demo.
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if (data.parentId) {
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const parent = MOCK_CHAPTERS.find(c => c.id === data.parentId);
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if (parent) {
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if (!parent.children) parent.children = [];
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parent.children.push(newChapter);
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} else {
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// Try searching one level deep
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for (const ch of MOCK_CHAPTERS) {
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if (ch.children) {
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const subParent = ch.children.find(c => c.id === data.parentId);
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if (subParent) {
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if (!subParent.children) subParent.children = [];
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subParent.children.push(newChapter);
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return newChapter;
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}
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}
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}
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}
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} else {
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MOCK_CHAPTERS.push(newChapter);
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}
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return newChapter;
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}
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export async function updateChapterContent(data: UpdateChapterContentInput): Promise<Chapter> {
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await new Promise((resolve) => setTimeout(resolve, 500));
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// Recursive find and update
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const updateContentRecursive = (chapters: Chapter[]): Chapter | null => {
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for (const ch of chapters) {
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if (ch.id === data.chapterId) {
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ch.content = data.content;
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ch.updatedAt = new Date();
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return ch;
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}
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if (ch.children) {
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const found = updateContentRecursive(ch.children);
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if (found) return found;
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}
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}
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return null;
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};
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const updated = updateContentRecursive(MOCK_CHAPTERS);
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if (!updated) throw new Error("Chapter not found");
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return updated;
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}
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export async function deleteChapter(id: string): Promise<void> {
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await new Promise((resolve) => setTimeout(resolve, 500));
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// Recursive delete
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MOCK_CHAPTERS = MOCK_CHAPTERS.filter(c => c.id !== id);
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MOCK_CHAPTERS.forEach(c => {
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if (c.children) {
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c.children = c.children.filter(child => child.id !== id);
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}
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});
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}
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// Knowledge Points
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export async function getKnowledgePointsByChapterId(chapterId: string): Promise<KnowledgePoint[]> {
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await new Promise((resolve) => setTimeout(resolve, 300));
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return MOCK_KNOWLEDGE_POINTS.filter(kp => kp.chapterId === chapterId);
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}
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export async function createKnowledgePoint(data: CreateKnowledgePointInput): Promise<KnowledgePoint> {
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await new Promise((resolve) => setTimeout(resolve, 500));
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const newKP: KnowledgePoint = {
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id: `kp_${Math.random().toString(36).substr(2, 9)}`,
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name: data.name,
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description: data.description,
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chapterId: data.chapterId,
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level: 1, // simplified
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order: 0
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};
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MOCK_KNOWLEDGE_POINTS.push(newKP);
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return newKP;
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}
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export async function deleteKnowledgePoint(id: string): Promise<void> {
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await new Promise((resolve) => setTimeout(resolve, 500));
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MOCK_KNOWLEDGE_POINTS = MOCK_KNOWLEDGE_POINTS.filter(kp => kp.id !== id);
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}
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