feat: letters added
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gosangam
@@ -0,0 +1,282 @@
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/**
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* Data access layer for Magazines (Back to Godhead, etc.).
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*
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* Uses dedicated Prisma models:
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* - MagazineMeta (collection: magazine_meta)
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* - MagazineIssue (collection: magazine_issues)
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*/
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import { prisma } from "@/lib/db";
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import type { JsonValue } from "@prisma/client/runtime/library";
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import fs from "fs";
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import path from "path";
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const LOCAL_JSON_DIR = path.join(process.cwd(), "lib", "jsons", "magazines");
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export type MagazineSubChapter = { slug: string; title: string };
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export type MagazineVolumeGroup = {
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title: string;
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subChapters: MagazineSubChapter[];
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};
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export type MagazineChapterEntry = MagazineSubChapter | MagazineVolumeGroup;
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export type MagazineMetaData = {
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book: string;
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title: string;
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author: string;
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year: number | null;
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description: string | null;
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totalIssues: number;
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totalArticles: number;
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flag: string | null;
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chapters: MagazineChapterEntry[];
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};
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export type MagazineIssueData = {
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book: string;
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volume: number;
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part: number;
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title: string;
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slug: string;
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paragraphs: string[];
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};
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export type MagazineSummary = {
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book: string;
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title: string;
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author: string;
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year: number | null;
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description: string | null;
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totalIssues: number;
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flag: string | null;
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};
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export type MagazineSidebarItem = {
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slug: string;
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label: string;
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type: string;
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};
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function sanitizeHtml(html: string): string {
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let clean = html.replace(/<script[\s>][\s\S]*?<\/script>/gi, "");
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clean = clean.replace(/<style[\s>][\s\S]*?<\/style>/gi, "");
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clean = clean.replace(/<iframe[\s>][\s\S]*?<\/iframe>/gi, "");
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clean = clean.replace(
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/<\/?(?:script|style|iframe|object|embed|form|input|textarea|select|button)[^>]*>/gi,
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"",
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);
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clean = clean.replace(/\s+on\w+\s*=\s*(?:"[^"]*"|'[^']*'|[^\s>]+)/gi, "");
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clean = clean.replace(/href\s*=\s*"javascript:[^"]*"/gi, 'href=""');
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clean = clean.replace(/href\s*=\s*'javascript:[^']*'/gi, "href=''");
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return clean;
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}
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function normalizeParagraphs(paragraphs: string[] | JsonValue): string[] {
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let result: string[];
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if (typeof paragraphs === "string") {
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try {
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const parsed = JSON.parse(paragraphs);
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result = Array.isArray(parsed) ? parsed : [paragraphs];
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} catch {
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result = [paragraphs];
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}
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} else if (Array.isArray(paragraphs)) {
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result = paragraphs as string[];
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} else {
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result = [];
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}
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return result.map(sanitizeHtml);
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}
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function findLocalDirForBook(bookCode: string): string | null {
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if (!fs.existsSync(LOCAL_JSON_DIR)) return null;
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const entries = fs.readdirSync(LOCAL_JSON_DIR);
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for (const entry of entries) {
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const introPath = path.join(LOCAL_JSON_DIR, entry, "intro.json");
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if (fs.existsSync(introPath)) {
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try {
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const intro = JSON.parse(fs.readFileSync(introPath, "utf-8"));
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if (intro.book === bookCode) return entry;
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} catch {
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/* skip */
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}
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}
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}
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return null;
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}
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function readLocalJson<T>(filePath: string): T | null {
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try {
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if (!fs.existsSync(filePath)) return null;
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return JSON.parse(fs.readFileSync(filePath, "utf-8")) as T;
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} catch {
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return null;
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}
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}
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function getAllLocalMetas(): MagazineMetaData[] {
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if (!fs.existsSync(LOCAL_JSON_DIR)) return [];
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const entries = fs.readdirSync(LOCAL_JSON_DIR).sort();
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const metas: MagazineMetaData[] = [];
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for (const entry of entries) {
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const intro = readLocalJson<MagazineMetaData>(
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path.join(LOCAL_JSON_DIR, entry, "intro.json"),
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);
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if (intro) metas.push(intro);
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}
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return metas;
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}
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function getLocalMeta(bookCode: string): MagazineMetaData | null {
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const dir = findLocalDirForBook(bookCode);
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if (!dir) return null;
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return readLocalJson<MagazineMetaData>(
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path.join(LOCAL_JSON_DIR, dir, "intro.json"),
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);
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}
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function getLocalIssue(
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bookCode: string,
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slug: string,
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): MagazineIssueData | null {
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const dir = findLocalDirForBook(bookCode);
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if (!dir) return null;
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const data = readLocalJson<MagazineIssueData>(
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path.join(LOCAL_JSON_DIR, dir, "issues", `${slug}.json`),
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);
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if (!data) return null;
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return { ...data, paragraphs: data.paragraphs.map(sanitizeHtml) };
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}
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// Public API
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export async function getAllMagazines(): Promise<MagazineSummary[]> {
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try {
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const results = await prisma.magazineMeta.findMany({
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orderBy: { book: "asc" },
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});
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if (results.length > 0) {
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return results.map((row) => {
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const data = row.data as unknown as MagazineMetaData;
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return {
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book: row.book,
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title: data.title,
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author: data.author,
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year: data.year ?? null,
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description: data.description ?? null,
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totalIssues: data.totalIssues,
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flag: data.flag ?? null,
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};
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});
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}
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} catch {
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/* fall through */
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}
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const localMetas = getAllLocalMetas();
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return localMetas.map((meta) => ({
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book: meta.book,
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title: meta.title,
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author: meta.author,
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year: meta.year ?? null,
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description: meta.description ?? null,
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totalIssues: meta.totalIssues,
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flag: meta.flag ?? null,
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}));
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}
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export async function getMagazineMeta(
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bookCode: string,
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): Promise<MagazineMetaData | null> {
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try {
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const row = await prisma.magazineMeta.findUnique({
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where: { book: bookCode },
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});
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if (row) return row.data as unknown as MagazineMetaData;
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} catch {
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/* fall through */
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}
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return getLocalMeta(bookCode);
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}
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export async function getMagazineIssue(
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bookCode: string,
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slug: string,
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): Promise<MagazineIssueData | null> {
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if (!slug) return null;
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try {
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const doc = await prisma.magazineIssue.findUnique({
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where: { book_slug: { book: bookCode, slug } },
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});
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if (doc) {
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// Support both paragraphsJson (string) and paragraphs (array) formats.
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// The seed script stores paragraphs as a JSON string to avoid
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// MongoDB BSON wire protocol issues with large string arrays.
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let paras: string[];
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if (doc.paragraphsJson) {
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try {
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paras = JSON.parse(doc.paragraphsJson);
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} catch {
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paras = [];
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}
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} else {
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paras = normalizeParagraphs(doc.paragraphs);
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}
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return {
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book: doc.book,
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volume: doc.volume,
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part: doc.part,
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title: doc.title,
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slug: doc.slug,
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paragraphs: paras,
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};
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}
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} catch {
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/* fall through */
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}
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return getLocalIssue(bookCode, slug);
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}
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export async function getMagazineContent(
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bookCode: string,
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slug: string,
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): Promise<MagazineIssueData | null> {
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return getMagazineIssue(bookCode, slug);
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}
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function isSubChapter(ch: MagazineChapterEntry): ch is MagazineSubChapter {
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return "slug" in ch && !("subChapters" in ch);
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}
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function hasSubChapters(ch: MagazineChapterEntry): ch is MagazineVolumeGroup {
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return "subChapters" in ch && Array.isArray(ch.subChapters);
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}
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export async function getMagazineSidebarItems(
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bookCode: string,
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): Promise<MagazineSidebarItem[]> {
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const meta = await getMagazineMeta(bookCode);
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if (!meta) return [];
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const items: MagazineSidebarItem[] = [];
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function addEntry(entry: MagazineChapterEntry) {
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if (isSubChapter(entry)) {
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items.push({ slug: entry.slug, label: entry.title, type: "chapter" });
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} else if (hasSubChapters(entry)) {
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items.push({ slug: "", label: entry.title, type: "heading" });
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for (const sc of entry.subChapters) {
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addEntry(sc);
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}
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}
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}
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for (const ch of meta.chapters) {
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addEntry(ch);
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}
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return items;
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}
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export function bookCodeToSlug(bookCode: string): string {
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return bookCode;
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}
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export function slugToBookCode(slug: string): string {
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return slug;
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}
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