fyp/webpage/src/routes/UserStore.svelte.ts

import { goto } from '$app/navigation';
import { rdelete } from '$lib/requests.svelte';

export type User = {
	token: string;
	id: string;
	user_type: number;
	username: string;
	email: string;
};

export function createUserStore() {
	let user = $state<User | undefined>(undefined);

	function getValue() {
		if (user == undefined) {
			let storage = localStorage.getItem('user');
			if (storage) {
				try {
					user = JSON.parse(storage);
				} catch {
					user = undefined;
				}
			}
		}
		return user;
	}

	return {
		get user() {
			return getValue();
		},
		set user(value: User | undefined) {
			if (value) {
				localStorage.setItem('user', JSON.stringify(value));
			} else {
				if (user) {
					// Request the deletion of the token
					rdelete('/user/token/logoff', {});
				}
				localStorage.removeItem('user');
			}
			user = value;
		},
		checkUser(pathOnFail: string, level?: number) {
			if (user && user.level > (level ?? 2)) {
				goto(pathOnFail);
				return true;
			}

			return false;
		},
		isLogin() {
			if (getValue()) return true;
			return false;
		}
	};
}

export const userStore = createUserStore();