package lib

import (
	"net/mail"
)

func ValidPassword(str string) error {
	if len(str) < 5 {
		return ErrTooShortPassword
	}
	if len(str) > 70 {
		return ErrTooLongPassword
	}
	return nil
}

func ValidUsername(str string) error {
	if len(str) < 5 {
		return ErrTooShortUsername
	}
	if len(str) > 70 {
		return ErrTooLongUsername
	}
	if err := ValidEmail(str); err == nil {
		return ErrBadUsername
	}
	return nil
}

func ValidEmail(str string) error {
	emailAddress, err := mail.ParseAddress(str)
	if err != nil || emailAddress.Address != str {
		return ErrBadEmail
	}
	return nil
}

func ValidRole(role int32) error {
	switch role {
	case RoleSpectator, RoleParticipant, RoleModerator, RoleAdmin:
		return nil
	}
	return ErrBadRole
}