package main

import (
	"errors"
	"fmt"
	"math/rand/v2"
	"net/url"
	"time"
)

type account struct {
	login    string
	password string
	url      string
}

type accountWithTimeStamp struct {
	createdAt time.Time
	updatedAt time.Time
	account
}

// метод вывода пароля
func (acc account) outputPassword() {
	fmt.Println(acc.login, acc.password, acc.url)
}

func (acc accountWithTimeStamp) outputPassword() {
	fmt.Println(acc.login, acc.password, acc.url, acc.createdAt, acc.updatedAt)
}

// метод генерации пароля
func (acc *account) generatePassword(n int) {
	res := make([]rune, n)
	for i := range res {
		res[i] = letterRunes[rand.IntN(len(letterRunes))]
	}
	acc.password = string(res)
}

// Создание аккаунта с таймстамп
func newAccountWithTimeStamp(login, password, urlString string) (*accountWithTimeStamp, error) {
	_, err := url.ParseRequestURI(urlString)
	if err != nil {
		return nil, errors.New("INVALID_URL")
	}
	if login == "" {
		return nil, errors.New("INVALID_LOGIN")
	}
	newAcc := &accountWithTimeStamp{
		createdAt: time.Now(),
		updatedAt: time.Now(),
		account: account{
			login:    login,
			password: password,
			url:      urlString,
		},
	}
	if password == "" {
		newAcc.generatePassword(18)
	}
	return newAcc, nil
}

// создание аккаунта
/* func newAccount(login, password, urlString string) (*account, error) {
	_, err := url.ParseRequestURI(urlString)
	if err != nil {
		return nil, errors.New("INVALID_URL")
	}
	if login == "" {
		return nil, errors.New("INVALID_LOGIN")
	}
	newAcc := &account{
		login:    login,
		password: password,
		url:      urlString,
	}
	if password == "" {
		newAcc.generatePassword(18)
	}
	return newAcc, nil
} */

var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGIJKLMNOPQRSTUVWXYZ1234567890-*!?()#$%&")

func main() {
	login := promptData("Введите логин: ")
	password := promptData("Введите пароль: ")
	url := promptData("Введите URL: ")

	myAccount, err := newAccountWithTimeStamp(login, password, url)
	if err != nil {
		fmt.Println("ОШИБКА: Неверный формат URL")
		return
	}
	myAccount.outputPassword()
}

// функция введения данных
func promptData(prompt string) string {
	fmt.Print(prompt)
	var res string
	fmt.Scanln(&res)
	return res
}