package main

import (
	"strconv"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/widget"
	"git.martyn.berlin/martyn/fyne-widgets/pkg/layouts"
	"git.martyn.berlin/martyn/fyne-widgets/pkg/webcam"
)

var webcamID int
var webcamLabel *widget.Label
var webcamWidget *webcam.Webcam

func switchWebcam(id int) {
	webcamLabel.Text = "Webcam: " + strconv.Itoa(id)
	webcamLabel.Refresh()
	webcamWidget.WebcamID = int64(id)
	webcamWidget.Refresh()
}

func incWebCamID() {
	webcamID = webcamID + 1
	switchWebcam(webcamID)
}

func decWebCamID() {
	webcamID = webcamID - 1
	switchWebcam(webcamID)
}

func main() {
	a := app.New()
	w := a.NewWindow("Webcam")

	webcamWidget = webcam.NewWebcam()
	layout := layouts.NewFloatingControlsLayout()
	layout.FloatingControlsLocation = layouts.FloatingControlsCenter
	webcamID = 0
	webcamWidget.UpdateFPS = 50

	webcamLabel = widget.NewLabel("Webcam: 0")
	buttons := container.NewHBox(webcamLabel, widget.NewButton("-", decWebCamID), widget.NewButton("+", incWebCamID))

	w.SetContent(container.New(&layout, webcamWidget, buttons))
	w.Resize(fyne.NewSize(640, 480))
	w.ShowAndRun()
}