minecraft-server-invites/internal/minecraft/minecraft.go

package minecraft

import (
	"errors"
	"fmt"
	"whitelistmanager/internal/store"

	mcrcon "github.com/Kelwing/mc-rcon"
)

const (
	RconConnectionError = "rcon connection failed"
	RconAuthError       = "failed to authenticate with rcon server"
	RconCommandError    = "command failed"
)

type MinecraftCom struct {
}

type Minecraft interface {
	Whitelist(user string, server store.Server) (string, error)
}

func NewCom() *MinecraftCom {
	return &MinecraftCom{}
}

func (m *MinecraftCom) Whitelist(user string, server store.Server) (string, error) {
	conn := new(mcrcon.MCConn)
	err := conn.Open(server.Rcon.Address, server.Rcon.Password)
	if err != nil {
		return "", errors.New(RconConnectionError)
	}
	defer conn.Close()

	err = conn.Authenticate()
	if err != nil {
		return "", errors.New(RconAuthError)
	}

	command := fmt.Sprintf("whitelist add %s", user)
	resp, err := conn.SendCommand(command)
	if err != nil {
		return "", errors.New(RconCommandError)
	}
	return resp, nil
}