---
import NavBar from '../components/NavBar.astro';
import Layout from '../layouts/Layout.astro';

import { createUser } from '../lib/db/users';

import { AstroCookieSetOptions } from 'astro';
import { ObjectId } from 'mongodb';
import config from '../../config.json';
import { getAllGalaxies } from '../lib/db/galaxies';
import { createPlanet } from '../lib/db/planets';
import { addSystemToSector } from '../lib/db/sectors';
import { createSystem } from '../lib/db/systems';
import DBPlanet from '../types/db/DBPlanet';
import DBSystem from '../types/db/DBSystem';
import locationManager from '../lib/classes/managers/LocationManager';

let error = "";

if(Astro.request.method === "POST") {
    const data = await Astro.request.formData();
    const username = data.get("username") as string | "";
    const email = data.get("email") as string | "";
    const password = data.get("password") as string | "";
    const password2 = data.get("password2") as string | "";

    if(username === "") error = "username is required";
    if(username.match(/^[a-zA-Z0-9]{3,20}$/) === null) error = "username must be between 3 and 20 characters long and can only contain letters and numbers";
    if(email === "") error = "email is required";
    if(email.match(/^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/) === null) error = "email is invalid";
    if(password === "") error = "password is required";
    if(password2 === "") error = "password2 is required";
    if(password.length < 8 || password.length > 50) error = "password must be between 8 and 50 characters long";
    if(password !== password2) error = "passwords must match";

    if(error === "") {
        const userId = new ObjectId();
        const planetId = new ObjectId();

        const user = await createUser(userId, username, email, password, planetId);

        const sessionTime = config.SESSION_TIME_MINUTES * 60;

        const galaxyIndex = Math.floor(Math.random() * 4);
        const sectorIndex = Math.floor(Math.random() * 8);

        const planetData: DBPlanet = {
            _id: planetId,
            owner: user._id,
            name: `${username}'s home planet`,
            fields: 100,
            buildings: [],
            ships: [],
            resources: []
        }

        await createPlanet(planetData);

        const systemData: DBSystem = {
            _id: new ObjectId(),
            name: `${username}'s home system`,
            ownedBy: user._id,
            structures: [],
            planets: [planetData._id],            
        }

        await createSystem(systemData);

        const galaxies = await getAllGalaxies();
        const sectorId = galaxies[galaxyIndex].sectors[sectorIndex];

        await addSystemToSector(sectorId, systemData._id);

        const cookieOptions: AstroCookieSetOptions = {
            path: "/",
            maxAge: sessionTime,
            sameSite: "lax",
            secure: true
        }

        Astro.cookies.set("username", username, cookieOptions);
        Astro.cookies.set("userid", user._id.toString() as string, cookieOptions);
        Astro.cookies.set("currentPlanet", planetData._id.toString(), cookieOptions);
        Astro.cookies.set("currentSystem", systemData._id.toString(), cookieOptions);
        
        await locationManager.init();
        const res = await fetch(`${Astro.url.origin}/api/auth/generateAccessToken`, {
            method: 'POST',
            body: JSON.stringify({
                username,
                createdFrom: 'loginForm',
                duration: sessionTime
            }),
            headers: {
                'Content-Type': 'application/json',
                'Authorization': 'Bearer ' + config.MASTER_ACCESSTOKEN
            }
        });
        const token = (await res.json()).accessToken;
        Astro.cookies.set("sessionToken", token, cookieOptions);

        return Astro.redirect("/game");
    }
}
---

<Layout title="Register">
    <NavBar loggedIn="false" active="register" />
    <form method="POST">
        <input type="text" name="username" placeholder="username" /><br />
        <input type="email" name="email" placeholder="email" /><br />
        <input type="password" name="password" placeholder="password" /><br />
        <input type="password" name="password2" placeholder="password2" /><br />
        <input type="submit" value="register" />
        { error !== "" ? <p style="color: red;">{error}</p> : "" }
    </form>
</Layout>