package tailscale

import (
	"context"
	"fmt"
	"os/exec"
	"strconv"
	"strings"
)

const cli = "/Applications/Tailscale.app/Contents/MacOS/Tailscale"

func Serve(ctx context.Context, port int) error {
	return run(ctx, "serve", "--bg", "--https="+strconv.Itoa(port), "http://127.0.0.1:"+strconv.Itoa(port))
}

func Off(ctx context.Context, port int) error {
	return run(ctx, "serve", "--https="+strconv.Itoa(port), "off")
}

func run(ctx context.Context, args ...string) error {
	out, err := exec.CommandContext(ctx, cli, args...).CombinedOutput()
	if err != nil {
		return fmt.Errorf("tailscale %s: %w: %s", strings.Join(args, " "), err, strings.TrimSpace(string(out)))
	}
	return nil
}