//go:build linux

package awgserver

import (
	"fmt"
	"log/slog"
	"os/exec"
)

func setTUNAddress(tunName, address string, logger *slog.Logger) error {
	cmd := exec.Command("ip", "addr", "add", address, "dev", tunName)
	if out, err := cmd.CombinedOutput(); err != nil {
		return fmt.Errorf("ip addr add: %s: %w", string(out), err)
	}
	cmd = exec.Command("ip", "link", "set", "up", "dev", tunName)
	if out, err := cmd.CombinedOutput(); err != nil {
		return fmt.Errorf("ip link set up: %s: %w", string(out), err)
	}
	logger.Info("TUN configured.", "name", tunName, "address", address)
	return nil
}