package clipboard

import (
	"sync"
)

type Clipboard interface {
	Copy(text string)
	Paste() <-chan string
}

type virtualClipboard string

func (clip *virtualClipboard) Copy(text string) {
	*clip = virtualClipboard(text)
}

var ch = make(chan string)
func (clip *virtualClipboard) Paste() <-chan string {
	go func() {
		ch <- string(*clip)
	}()
	return ch
}

var defaultClipboard virtualClipboard
var clipboard Clipboard = &defaultClipboard
var mut sync.RWMutex

func Get() Clipboard {
	mut.RLock()
	c := clipboard
	mut.RUnlock()
	return c
}

func Set(c Clipboard) {
	mut.Lock()
	clipboard = c
	mut.Unlock()
}