import { game } from "../game";
import { userData } from "../Classes/userData";

export class users{
    static createUser(login, password){
        if (game.accountsDB.find(u=>u.login == login) != null){
            console.log(`User ${login} alread exists`);
            return null;
        }

        var user = new userData(game.accountsDB.length, login, password);
        game.accountsDB.push(user);
        return user;
    }
    
    static readUser(login, password){
        let user = game.accountsDB.find(u=>u.login == login && u.password == password)
        if(user != null){
            return user;
        }
        return null;
    }

    static readUserID(id : number){
        let user = game.accountsDB.filter(u=>u.id == id)[0];
        return user;
    }

    static updateUser(userNew : userData){
        let user = this.readUserID(userNew.id);
        let sum = Math.floor(Math.random() * 99999);
        while(sum == userNew.checksum){
            sum = Math.floor(Math.random() * 99999);
        }
        userNew.checksum = sum;
        game.accountsDB[game.accountsDB.indexOf(user)] = userNew;
    }

    static saveUsers(fs){
        game.accountsDB.forEach(user => {user.save(fs)});
    }
    
    static loadUsers(fs){
        fs.mkdirSync(`Database/Users/`, { recursive: true })
        fs.readdir(`Database/Users/`, (err, files) => {
            files.forEach(file => {
                fs.readFile(`Database/Users/${file}`, (err, data) => {
                    if (err) throw err;
                    let user : userData = Object.assign(new userData(-1,"",""), JSON.parse(data));
                    game.accountsDB.push(user);
                    console.log(`Loaded ${user.login}`);
                });
            });
        });
    }
}