package sendoverhttp

import (
	"fmt"
	"os"

	"github.com/mdp/qrterminal/v3"
	_ "github.com/mdp/qrterminal/v3"
)

type TerminalQRShower struct {
	waiter *Waiter
	str    string
}

func NewTerminalQRShower(str string) *TerminalQRShower {
	return &TerminalQRShower{
		waiter: NewWaiter(),
		str:    str,
	}
}

// Start the run, returning any error which occurs from start to
// finish.
func (s *TerminalQRShower) Start() error {
	qrterminal.Generate(s.str, qrterminal.L, os.Stdout)
	fmt.Println()
	fmt.Printf("serving on '%s'", s.str)
	fmt.Println()
	fmt.Println()
	s.waiter.Wait()
	return nil
}

// Stop the run and wait until it has ended.  It can be called multiple
// times, ending immediately.
func (s *TerminalQRShower) Stop() {
	s.waiter.Stop()
}