package params

import (
	"github.com/qdm12/gluetun/internal/constants"
	libparams "github.com/qdm12/golibs/params"
)

// GetMullvadCountries obtains the countries for the Mullvad servers from the
// environment variable COUNTRY
func (r *reader) GetMullvadCountries() (countries []string, err error) {
	choices := append(constants.MullvadCountryChoices(), "")
	return r.envParams.GetCSVInPossibilities("COUNTRY", choices)
}

// GetMullvadCity obtains the cities for the Mullvad servers from the
// environment variable CITY
func (r *reader) GetMullvadCities() (cities []string, err error) {
	choices := append(constants.MullvadCityChoices(), "")
	return r.envParams.GetCSVInPossibilities("CITY", choices)
}

// GetMullvadISPs obtains the ISPs for the Mullvad servers from the
// environment variable ISP
func (r *reader) GetMullvadISPs() (isps []string, err error) {
	choices := append(constants.MullvadISPChoices(), "")
	return r.envParams.GetCSVInPossibilities("ISP", choices)
}

// GetMullvadPort obtains the port to reach the Mullvad server on from the
// environment variable PORT
func (r *reader) GetMullvadPort() (port uint16, err error) {
	n, err := r.envParams.GetEnvIntRange("PORT", 0, 65535, libparams.Default("0"))
	return uint16(n), err
}

// GetMullvadOwned obtains if the server should be owned by Mullvad or not from the
// environment variable OWNED
func (r *reader) GetMullvadOwned() (owned bool, err error) {
	return r.envParams.GetYesNo("OWNED", libparams.Default("no"))
}