feat: add ssr
This commit is contained in:
gosangam
+322
@@ -0,0 +1,322 @@
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/**
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* Data access layer for The Nectar of Instruction (NoI).
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*
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* Reads from MongoDB via Prisma.
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* NoI has 11 texts (verses) plus intro segments (front-pages, preface, appendixes).
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*
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* Verses were seeded with:
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* - book: "noi", division: null
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* - chapter = text number (1-11)
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* - verse = always 1
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*
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* Intro segments were seeded with:
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* - book: "noi", volume: 0, type: "intro-segment"
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* - slugs like "intro-front-pages", "intro-preface", "intro-appendixes"
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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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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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const BOOK = "noi";
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const NO_VOLUME = 0;
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// ---------------------------------------------------------------------------
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// Text title lookup
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// ---------------------------------------------------------------------------
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const TEXT_TITLES: Record<number, string> = {
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1: "Text One",
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2: "Text Two",
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3: "Text Three",
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4: "Text Four",
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5: "Text Five",
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6: "Text Six",
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7: "Text Seven",
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8: "Text Eight",
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9: "Text Nine",
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10: "Text Ten",
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11: "Text Eleven",
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};
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// ---------------------------------------------------------------------------
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// Types
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// ---------------------------------------------------------------------------
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export type NoiMeta = {
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book: string;
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title: string;
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subtitle: string;
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author: string;
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year: number;
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description: string;
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totalTexts: number;
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texts: NoiTextEntry[];
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};
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export type NoiTextEntry = {
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number: number;
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title: string;
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slug: string;
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};
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export type NoiIntroSegment = {
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slug: string;
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title: string;
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type: string;
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book: string;
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order: number;
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paragraphs: string[];
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};
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export type NoiVerse = {
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book: string;
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book_title: string;
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text: number;
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title: string;
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reference: string;
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devanagari: string;
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transliteration: string;
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synonyms: { word: string; meanings: string[] }[];
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translation: string;
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purport: string[];
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};
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/** Union type used in sidebar / table-of-contents navigation. */
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export type NoiSidebarItem = {
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/** URL-safe slug: "intro-front-pages", "intro-preface", "1", etc. */
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slug: string;
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/** Human-readable label for the sidebar */
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label: string;
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/** "intro-segment" | "verse" */
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type: string;
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/** Text number (1-11), or null for non-verse items */
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text: number | null;
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};
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// ---------------------------------------------------------------------------
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// HTML sanitisation (mirrors lib/iso.ts, lib/nod.ts)
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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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/** Normalize paragraphs — handles both native arrays and stringified JSON. */
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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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/** Normalize purport via normalizeParagraphs. */
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function normalizePurport(purport: string[] | JsonValue): string[] {
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return normalizeParagraphs(purport);
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}
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// ---------------------------------------------------------------------------
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// Book meta
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// ---------------------------------------------------------------------------
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/**
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* Book-level metadata (title, author, texts list, etc.)
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*/
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export async function getNoiMeta(): Promise<NoiMeta | null> {
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const meta = await prisma.bookMeta.findUnique({ where: { book: BOOK } });
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if (!meta) return null;
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return meta.data as unknown as NoiMeta;
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}
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// ---------------------------------------------------------------------------
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// Intro segments (from prose_chapters collection)
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// ---------------------------------------------------------------------------
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/**
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* All intro segments, ordered by their `order` field.
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*/
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export async function getNoiIntroSegments(): Promise<NoiIntroSegment[]> {
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const results = await prisma.proseChapter.findMany({
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where: { book: BOOK, volume: NO_VOLUME, type: "intro-segment" },
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orderBy: { order: "asc" },
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});
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return results.map((doc) => ({
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slug: doc.slug,
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title: doc.title,
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type: doc.type,
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book: doc.book,
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order: doc.order,
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paragraphs: normalizeParagraphs(doc.paragraphs),
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}));
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}
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/**
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* A single intro segment by slug.
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* Accepts both "intro-front-pages" (URL slug) and "front-pages" (raw slug).
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*/
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export async function getNoiIntroSegment(
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slug: string,
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): Promise<NoiIntroSegment | null> {
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// DB stores with "intro-" prefix; accept either form
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const dbSlug = slug.startsWith("intro-") ? slug : `intro-${slug}`;
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const doc = await prisma.proseChapter.findUnique({
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where: {
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book_volume_slug: { book: BOOK, volume: NO_VOLUME, slug: dbSlug },
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},
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});
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if (!doc) return null;
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return {
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slug: doc.slug,
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title: doc.title,
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type: doc.type,
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book: doc.book,
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order: doc.order,
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paragraphs: normalizeParagraphs(doc.paragraphs),
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};
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}
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// ---------------------------------------------------------------------------
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// Verses (texts 1-11, from verses collection)
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// ---------------------------------------------------------------------------
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/**
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* A single verse/text by slug.
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*
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* - "1"-"11" → chapter=1–11, verse=1
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*/
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export async function getNoiVerse(slug: string): Promise<NoiVerse | null> {
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const textNum = Number(slug);
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if (!Number.isInteger(textNum) || textNum < 1 || textNum > 11) return null;
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const doc = await prisma.verse.findFirst({
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where: { book: BOOK, division: null, chapter: textNum, verse: 1 },
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});
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if (!doc) return null;
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return {
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book: doc.book,
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book_title: doc.bookTitle,
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text: doc.chapter, // chapter field stores the text number
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title: TEXT_TITLES[doc.chapter] ?? `Text ${doc.chapter}`,
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reference: doc.reference,
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devanagari: doc.devanagari,
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transliteration: doc.transliteration,
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synonyms: doc.synonyms as { word: string; meanings: string[] }[],
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translation: sanitizeHtml(doc.translation),
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purport: normalizePurport(doc.purport),
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};
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}
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// ---------------------------------------------------------------------------
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// Unified content accessor
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// ---------------------------------------------------------------------------
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/**
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* Get content by URL slug.
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*
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* "intro-front-pages" → intro segment
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* "intro-preface" → intro segment
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* "intro-appendixes" → intro segment
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* "1" … "11" → verse/text
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*/
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export async function getNoiContent(
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slug: string,
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): Promise<NoiVerse | NoiIntroSegment | null> {
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if (slug.startsWith("intro-")) {
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return getNoiIntroSegment(slug);
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}
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const num = Number(slug);
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if (!Number.isNaN(num) && Number.isInteger(num) && num >= 1 && num <= 11) {
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return getNoiVerse(String(num));
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}
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return null;
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}
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// ---------------------------------------------------------------------------
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// Sidebar navigation
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// ---------------------------------------------------------------------------
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/**
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* Build the full sidebar navigation list.
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*
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* Order: front-pages → preface → texts 1-11 → appendixes
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*/
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export async function getNoiSidebarItems(): Promise<NoiSidebarItem[]> {
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const [meta, allDocs] = await Promise.all([
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getNoiMeta(),
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prisma.proseChapter.findMany({
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where: { book: BOOK, volume: NO_VOLUME },
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orderBy: { order: "asc" },
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select: { slug: true, title: true, type: true, chapter: true },
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}),
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]);
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if (!meta) return [];
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const items: NoiSidebarItem[] = [];
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// 1. Intro segments that come before the texts (front-pages, preface — by order)
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for (const doc of allDocs) {
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if (doc.type === "intro-segment" && doc.slug !== "intro-appendixes") {
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items.push({
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slug: doc.slug,
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label: doc.title,
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type: "intro-segment",
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text: null,
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});
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}
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}
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// 2. Texts 1-11 (from meta.texts)
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for (const t of meta.texts) {
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items.push({
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slug: String(t.number),
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label: `${t.number}. ${t.title}`,
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type: "verse",
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text: t.number,
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});
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}
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// 3. Appendixes intro segment (at the end)
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const appendixes = allDocs.find((d) => d.slug === "intro-appendixes");
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if (appendixes) {
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items.push({
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slug: appendixes.slug,
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label: appendixes.title,
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type: "intro-segment",
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text: null,
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});
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}
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return items;
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}
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