package controller

import (
	"fyne.io/fyne/v2"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/application"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/application/setting"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/gui/menu"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/gui/view"
	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/gui/window"
)

type ControllerContract interface {
	Start()
}

type controller struct {
	app    application.AppContract
	window window.WindowContract
}

func NewController(app application.AppContract) ControllerContract {
	fyneWindow := app.FyneApp().NewWindow("GUI for FFmpeg")
	fyneWindow.SetMaster()
	queueLayout := window.NewQueueLayout(app.GetFFmpegService())
	app.GetQueueService().AddListener(queueLayout)

	return &controller{
		app: app,
		window: window.NewMainWindow(
			fyneWindow,
			app.GetProgressBarService(),
			app.GetItemsToConvert(),
			queueLayout,
		),
	}
}

func (c *controller) Start() {
	isDefault, err := c.initLanguage()
	if err != nil {
		c.startWithError(err)
		c.window.Show()
		return
	}

	c.app.GetSetting().ThemeInit()

	if isDefault {
		languages := c.app.GetSetting().GetLanguages()
		content := view.StartWithoutSupportLang(languages, func(lang setting.Lang) {
			err = c.app.GetSetting().SetLang(lang)
			if err != nil {
				c.startWithError(err)
				return
			}
			c.initLayout()
			c.verificareaFFmpeg()
		})
		c.window.SetContent(content)
		c.window.Show()
		return
	}

	c.initLayout()
	c.verificareaFFmpeg()
	c.window.Show()
}

func (c *controller) verificareaFFmpeg() {
	if !c.app.GetFFmpegService().UtilityCheck() {
		c.settingConvertor(false)
		return
	}

	c.convertor()
}

func (c *controller) initLanguage() (isDefault bool, err error) {
	lang, isDefault := c.app.GetSetting().GetCurrentLangOrDefaultLang()
	err = setting.ChangeLang(lang)
	return isDefault, err
}

func (c *controller) initLayout() {
	c.window.SetMainMenu(fyne.NewMainMenu(
		menu.MainMenuSettings(
			c.actionMainSettings,
			c.actionSettingConvertor,
		),
		menu.MainMenuHelp(
			c.actionAbout,
			c.actionHelpFFplay,
		),
	))
	c.window.InitLayout()
}