112 lines
3.4 KiB
TypeScript
112 lines
3.4 KiB
TypeScript
import { Database } from "bun:sqlite";
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import {
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addUser,
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fetchCard,
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fetchLesson,
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fetchLessons,
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fetchResource,
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} from "./db";
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const db = new Database("../db/data.db", { strict: true });
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db.exec("PRAGMA journal_mode = WAL;");
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Bun.serve({
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fetch(req) {
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const url = new URL(req.url);
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console.log(url.pathname, "url");
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const user = parseUser(req);
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if (req.method === "POST" && url.pathname === "/api")
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return handlePost(req, user, url);
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if (req.method === "GET" && url.pathname.startsWith("/api"))
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return handleGet(req, user, url);
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return serveStatic(url);
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},
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});
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function parseUser(req: Request): number {
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// console.log(req, 'request');
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return 0;
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}
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async function serveStatic(url: URL) {
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const filename = url.pathname === "/" ? "/index.html" : url.pathname;
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const headers = { "Content-type": "text/html" };
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const opts = { headers };
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try {
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const file = await Bun.file(`../ui/${filename}`).bytes();
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return new Response(file, opts);
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} catch (_) {
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return new Response("404!");
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}
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}
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async function handleGet(_req: Request, user: number, url: URL) {
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if (url.pathname === "/api/resource") return handleGetExpresion(user, url);
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if (url.pathname === "/api/card") return handleGetCard(user, url);
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if (url.pathname === "/api/lesson") return handleGetLesson(user, url);
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if (url.pathname === "/api/lessons") return handleGetLessons(user, url);
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else return new Response("huh");
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}
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function handleGetExpresion(user: number, url: URL) {
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const params = new URLSearchParams(url.search);
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const expression = params.get("exp");
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const data = fetchResource(db, expression!);
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return Response.json({ ok: data });
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}
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type LessonsType = Record<
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number,
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{
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id: number;
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text: string;
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cards: Array<{ text: string; note: string | null; id: number }>;
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}
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>;
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type LessonsDBType = {
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id: number;
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ltext: string;
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ctext: string;
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cnote: string | null;
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cid: number;
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};
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function handleGetLesson(user: number, url: URL) {
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const params = new URLSearchParams(url.search);
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const lesson = params.get("lesson");
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const data = fetchLesson(db, Number(lesson!));
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return Response.json({ ok: data });
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}
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function handleGetCard(user: number, url: URL) {
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const params = new URLSearchParams(url.search);
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const card = params.get("card");
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const data = fetchCard(db, Number(card), user);
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return Response.json({ ok: data });
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}
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function handleGetLessons(user: number, url: URL) {
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const params = new URLSearchParams(url.search);
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const page = params.get("page") || "0";
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const data: LessonsDBType[] = fetchLessons(db, 20, Number(page)) as any;
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console.log(data, "fetchlessons");
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const lessons = data.reduce((acc: LessonsType, item: LessonsDBType) => {
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let cur = acc[item.id] || { id: item.id, text: item.ltext, cards: [] };
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const cards = [
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...cur.cards,
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{ text: item.ctext, note: item.cnote, id: item.cid },
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];
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const def = { ...cur, cards };
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return { ...acc, [item.id]: def };
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}, {} as LessonsType);
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console.log(lessons, "lesons");
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return Response.json({ ok: lessons });
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}
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async function handlePost(req: Request, user: number, url: URL) {
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const data = await req.json();
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if (url.pathname === "/api/user") return handlePostUser(data);
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else return new Response("huh");
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}
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// https://bun.sh/guides/http/server
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type PostUser = { name: string; creds: string };
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function handlePostUser(user: PostUser) {
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addUser(db, user.name, user.creds);
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return new Response("ok");
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}
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