/**
 * Data access layer for Perfect Questions, Perfect Answers (PQPA).
 *
 * Delegates to the generic book data layer which calls the BFF API.
 */

import {
  getBookMeta,
  getIntroSegments,
  getIntroSegment,
  getChapter,
  getContent,
  getSidebarItems,
  type BookMeta,
  type IntroSegment,
  type Chapter,
  type SidebarItem,
} from "@/lib/books";

const CODE = "pqpa";

export type PqpaMeta = BookMeta;
export type PqpaChapterEntry = { number: number; title: string };
export type PqpaIntroSegment = IntroSegment;
export type PqpaChapter = Chapter;
export type PqpaSidebarItem = SidebarItem;

export async function getPqpaMeta() {
  return getBookMeta(CODE);
}
export async function getPqpaIntroSegments() {
  return getIntroSegments(CODE);
}
export async function getPqpaIntroSegment(slug: string) {
  return getIntroSegment(CODE, slug);
}
export async function getPqpaChapter(chapterNum: number) {
  return getChapter(CODE, String(chapterNum));
}
// PqpaConcludingWords is just a chapter with slug "concluding-words"
export async function getPqpaConcludingWords() {
  return getChapter(CODE, "concluding-words");
}
export async function getPqpaContent(slug: string) {
  return getContent(CODE, slug);
}
export async function getPqpaSidebarItems() {
  return getSidebarItems(CODE);
}