package form

import (
	"errors"
	"net/http"
	"regexp"
)

type HomepageForm struct {
	Username string
	Password string
	Confirm  string
	Key      string
	Error    string
}

func (f *HomepageForm) Validate() error {
	if f.Password != f.Confirm {
		return errors.New("password doesn't match confirmation")
	}
	if len(f.Username) < 3 {
		return errors.New("username needs to be at least 3 characters")
	}
	match, _ := regexp.MatchString("^[a-z0-9-_]+$", f.Username)
	if !match {
		return errors.New("only lowercase letters and digits are accepted for username")
	}
	if len(f.Password) < 6 {
		return errors.New("password needs to be at least 6 characters")
	}
	return nil
}

func NewHomepageForm(r *http.Request) *HomepageForm {
	return &HomepageForm{
		Username: r.FormValue("name"),
		Password: r.FormValue("password"),
		Confirm:  r.FormValue("password-confirm"),
		Key:      r.FormValue("key"),
	}
}