import { assert } from "$std/assert/assert.ts";
import { User } from "../lib/store.ts";
import { generate } from "https://deno.land/std@0.224.0/uuid/v1.ts";

class Authentificator {
	tokens;
	user_storage;
	constructor(user_storage: UserStorage) {
		this.tokens = new TokenSet();
		this.user_storage = user_storage;
	}
}

interface UserStorage {
	get_user(login: string): User | null;
}

export class Token {
	raw;
	user_id;
	constructor(raw: string, user_id: string) {
		this.raw = raw;
		this.user_id = user_id;
	}
}

class TokenSet {
	tokens;

	constructor() {
		this.tokens = new Map<string, Token>();
	}

	get(token: string) {
		return this.tokens.get(token) ?? null;
	}

	create(user_id: string) {
		const raw = generate();
		assert(typeof raw == "string");
		const token = new Token(raw, user_id);
		this.tokens.set(raw, token);
	}
}

class StaticUserStorage implements UserStorage {
	users;

	constructor() {
		this.users = new Map<string, User>();
	}

	get_user(user_id: string) {
		return this.users.get(user_id) ?? null;
	}

	with(user: User) {
		this.users.set(user.id, user);
		return this;
	}
}

export const auth = new Authentificator(
	new StaticUserStorage().with({
		id: "pleinplein",
		email: "feur@feur.feur",
		like_set: new Set(),
		name: "Feur",
		password: "feurfeur",
		pfp_url: "https://feur.feur.feur/feur.feur",
	}),
);