package view

import (
	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/canvas"
	"fyne.io/fyne/v2/lang"
	"fyne.io/fyne/v2/widget"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/application/setting"
	"image/color"
)

type MainSettingForm struct {
	Language  setting.Lang
	ThemeInfo setting.ThemeInfoContract
}

func MainSettings(
	currentLang setting.Lang,
	langList []setting.Lang,

	themeInfo setting.ThemeInfoContract,
	themeList map[string]setting.ThemeInfoContract,

	save func(form *MainSettingForm) error,
	cancel func(),
) fyne.CanvasObject {

	errorMessage := canvas.NewText("", color.RGBA{R: 255, G: 0, B: 0, A: 255})
	errorMessage.TextSize = 16
	errorMessage.TextStyle = fyne.TextStyle{Bold: true}

	viewSettingForm := &MainSettingForm{
		Language:  currentLang,
		ThemeInfo: themeInfo,
	}

	var languageItems []string
	langByTitle := map[string]setting.Lang{}
	for _, language := range langList {
		languageItems = append(languageItems, language.Title)
		langByTitle[language.Title] = language
	}
	selectLanguage := widget.NewSelect(languageItems, func(s string) {
		if lang, ok := langByTitle[s]; ok {
			viewSettingForm.Language = lang
		}
	})
	selectLanguage.Selected = currentLang.Title

	var themeItems []string
	themeByTitle := map[string]setting.ThemeInfoContract{}
	for _, themeInfo := range themeList {
		themeItems = append(themeItems, themeInfo.GetTitle())
		themeByTitle[themeInfo.GetTitle()] = themeInfo
	}
	selectTheme := widget.NewSelect(themeItems, func(s string) {
		if themeInfo, ok := themeByTitle[s]; ok {
			viewSettingForm.ThemeInfo = themeInfo
		}
	})
	selectTheme.Selected = themeInfo.GetTitle()

	form := &widget.Form{
		Items: []*widget.FormItem{
			{
				Text:   lang.L("menuSettingsLanguage"),
				Widget: selectLanguage,
			},
			{
				Text:   lang.L("menuSettingsTheme"),
				Widget: selectTheme,
			},
			{
				Widget: errorMessage,
			},
		},
		SubmitText: lang.L("save"),
		OnSubmit: func() {
			err := save(viewSettingForm)
			if err != nil {
				errorMessage.Text = err.Error()
			}
		},
	}
	if cancel != nil {
		form.OnCancel = cancel
		form.CancelText = lang.L("cancel")
	}

	messageHead := lang.L("settings")
	return widget.NewCard(messageHead, "", form)
}