package menu

import (
	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/canvas"
	"fyne.io/fyne/v2/widget"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/kernel"
	"github.com/nicksnyder/go-i18n/v2/i18n"
	"image/color"
)

type ViewSettingContract interface {
	Main(
		save func(*SettingForm) error,
		cancel func(),
	)
}

type SettingForm struct {
	Language kernel.Lang
}

type ViewSetting struct {
	app kernel.AppContract
}

func NewViewSetting(app kernel.AppContract) *ViewSetting {
	return &ViewSetting{
		app: app,
	}
}

func (v ViewSetting) Main(save func(*SettingForm) error, cancel func()) {
	errorMessage := canvas.NewText("", color.RGBA{R: 255, G: 0, B: 0, A: 255})
	errorMessage.TextSize = 16
	errorMessage.TextStyle = fyne.TextStyle{Bold: true}

	viewSettingForm := &SettingForm{
		Language: v.app.GetLocalizerService().GetCurrentLanguage().Lang,
	}

	languageItems := []string{}
	langByTitle := map[string]kernel.Lang{}
	for _, language := range v.app.GetLocalizerService().GetLanguages() {
		languageItems = append(languageItems, language.Title)
		langByTitle[language.Title] = language
	}
	selectLanguages := widget.NewSelect(languageItems, func(s string) {
		if lang, ok := langByTitle[s]; ok {
			viewSettingForm.Language = lang
		}
	})
	selectLanguages.Selected = v.app.GetLocalizerService().GetCurrentLanguage().Lang.Title

	form := &widget.Form{
		Items: []*widget.FormItem{
			{
				Text: v.app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
					MessageID: "menuSettingsLanguage",
				}),
				Widget: selectLanguages,
			},
			{
				Widget: errorMessage,
			},
		},
		SubmitText: v.app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
			MessageID: "save",
		}),
		OnSubmit: func() {
			err := save(viewSettingForm)
			if err != nil {
				errorMessage.Text = err.Error()
			}
		},
	}
	if cancel != nil {
		form.OnCancel = cancel
		form.CancelText = v.app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
			MessageID: "cancel",
		})
	}

	messageHead := v.app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
		MessageID: "settings",
	})
	v.app.GetWindow().SetContent(widget.NewCard(messageHead, "", form))
}