import { isServerResponse } from "$lib/ServerResponse";
import { redirect, type ServerLoad } from "@sveltejs/kit";
import { isMe, type Me } from "$lib/me";
import { setMeContext } from "$lib/meContext";

export const load: ServerLoad = async ({ request, cookies, fetch }) => {
	const url = new URL(request.url);
	const token = cookies.get("access_token");
	let me: Me | null = null;

	if (token) {
		const res = await fetch("/api/me", {
			headers: [["authorization", token]],
		});

		const body = await res.json();

		if (!isServerResponse(body)) {
			throw new Error("missing or malformed body");
		}

		if (!("item" in body)) {
			throw new Error("expected to receive an item");
		}

		const item = body.item;

		if (!isMe(item)) {
			throw new Error("expected to receive users 'me' object");
		}

		me = item;
	}

	if (!token && url.pathname !== "/login" && url.pathname !== "/login/__data.json") {
		console.log("REDIRECTING", url.pathname);
		const baseUrl = `${url.protocol}${url.host}`;
		const loginUrl = new URL("login", baseUrl);
		loginUrl.searchParams.set("to", url.pathname);
		redirect(302, loginUrl);
	} else {
		console.log("no need to redirect");
	}

	return {
		token,
		me,
	};
};