package setting

import (
	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/canvas"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/dialog"
	"fyne.io/fyne/v2/widget"
	"image/color"
	"net/url"
)

type ViewContract interface {
	SelectFFPath(func(ffmpegPath string, ffprobePath string) error)
}

type View struct {
	w fyne.Window
}

func NewView(w fyne.Window) *View {
	return &View{w}
}

func (v View) SelectFFPath(save func(ffmpegPath string, ffprobePath string) error) {
	errorMessage := canvas.NewText("", color.RGBA{255, 0, 0, 255})
	errorMessage.TextSize = 16
	errorMessage.TextStyle = fyne.TextStyle{Bold: true}

	ffmpegPath, buttonFFmpeg, buttonFFmpegMessage := v.getButtonSelectFile()
	ffprobePath, buttonFFprobe, buttonFFprobeMessage := v.getButtonSelectFile()

	link := widget.NewHyperlink("https://ffmpeg.org/download.html", &url.URL{
		Scheme: "https",
		Host:   "ffmpeg.org",
		Path:   "download.html",
	})

	form := &widget.Form{
		Items: []*widget.FormItem{
			{Text: "Скачать можно от сюда", Widget: link},
			{Text: "Путь к ffmpeg:", Widget: buttonFFmpeg},
			{Widget: buttonFFmpegMessage},
			{Text: "Путь к ffprobe:", Widget: buttonFFprobe},
			{Widget: buttonFFprobeMessage},
			{Widget: errorMessage},
		},
		SubmitText: "Сохранить",
		OnSubmit: func() {
			err := save(string(*ffmpegPath), string(*ffprobePath))
			if err != nil {
				errorMessage.Text = err.Error()
			}
		},
	}
	v.w.SetContent(widget.NewCard("Укажите путь к FFmpeg и к FFprobe", "", container.NewVBox(form)))
}

func (v View) getButtonSelectFile() (filePath *string, button *widget.Button, buttonMessage *canvas.Text) {
	path := ""
	filePath = &path

	buttonMessage = canvas.NewText("", color.RGBA{255, 0, 0, 255})
	buttonMessage.TextSize = 16
	buttonMessage.TextStyle = fyne.TextStyle{Bold: true}

	button = widget.NewButton("выбрать", func() {
		fileDialog := dialog.NewFileOpen(
			func(r fyne.URIReadCloser, err error) {
				if err != nil {
					buttonMessage.Text = err.Error()
					setStringErrorStyle(buttonMessage)
					return
				}
				if r == nil {
					return
				}

				path = r.URI().Path()

				buttonMessage.Text = r.URI().Path()
				setStringSuccessStyle(buttonMessage)
			}, v.w)
		fileDialog.Show()
	})

	return
}

func setStringErrorStyle(text *canvas.Text) {
	text.Color = color.RGBA{255, 0, 0, 255}
	text.Refresh()
}

func setStringSuccessStyle(text *canvas.Text) {
	text.Color = color.RGBA{49, 127, 114, 255}
	text.Refresh()
}