{-
  Movie Monad
  (C) 2017 David Lettier
  lettier.com
-}

{-# LANGUAGE OverloadedStrings #-}

module Reset where

import Control.Monad
import Data.Int
import Data.IORef
import Data.GI.Base.Properties
import qualified GI.Gtk
import qualified GI.Gst

import qualified Records as R
import Constants
import Mouse
import VideoInfo
import PlayPause
import Utils

resetApplication :: R.Application -> IO ()
resetApplication
  R.Application
    { R.guiObjects = guiObjects
    , R.playbin    = playbin
    , R.ioRefs     = ioRefs
    }
  = do
  resetIoRefs     ioRefs
  resetPlaybin    playbin
  resetGuiObjects guiObjects

resetIoRefs :: R.IORefs -> IO ()
resetIoRefs
  R.IORefs
    { R.videoInfoRef            = videoInfoRef
    , R.previousFileNamePathRef = previousFileNamePathRef
    }
  = do
  void $ resetVideoInfo videoInfoRef
  atomicWriteIORef previousFileNamePathRef ""

resetVideoInfo :: IORef R.VideoInfo -> IO R.VideoInfo
resetVideoInfo videoInfoRef = do
  let videoInfo = R.defaultVideoInfo
  saveVideoInfo videoInfoRef videoInfo
  return videoInfo

resetPlaybin :: GI.Gst.Element -> IO ()
resetPlaybin playbin = do
  void $ GI.Gst.elementSetState playbin GI.Gst.StateNull
  void $ Data.GI.Base.Properties.setObjectPropertyDouble playbin "volume" 0.0
  void $ Data.GI.Base.Properties.setObjectPropertyString playbin "uri" (Just "")

resetGuiObjects :: R.GuiObjects -> IO ()
resetGuiObjects
  R.GuiObjects
    { R.window                           = window
    , R.fileChooserButton                = fileChooserButton
    , R.fileChooserEntry                 = fileChooserEntry
    , R.fileChooserButtonLabel           = fileChooserButtonLabel
    , R.videoWidget                      = videoWidget
    , R.seekScale                        = seekScale
    , R.playPauseButton                  = playPauseButton
    , R.repeatCheckButton                = repeatCheckButton
    , R.windowWidthSelectionComboBoxText = windowWidthSelectionComboBoxText
    , R.subtitleSelectionComboBoxText    = subtitleSelectionComboBoxText
    , R.fullscreenButton                 = fullscreenButton
    , R.playImage                        = playImage
    , R.pauseImage                       = pauseImage
    , R.bottomControlsGtkBox             = bottomControlsGtkBox
    }
  = do
  desiredWindowWidth <- getDesiredWindowWidth windowWidthSelectionComboBoxText window
  styleContext <- GI.Gtk.widgetGetStyleContext bottomControlsGtkBox
  GI.Gtk.widgetSetSizeRequest window windowMinimumSize (-1)
  GI.Gtk.windowUnfullscreen window
  GI.Gtk.widgetHide videoWidget
  GI.Gtk.widgetHide bottomControlsGtkBox
  GI.Gtk.widgetHide seekScale
  GI.Gtk.widgetHide playPauseButton
  GI.Gtk.widgetHide repeatCheckButton
  GI.Gtk.widgetHide fullscreenButton
  GI.Gtk.widgetHide subtitleSelectionComboBoxText
  GI.Gtk.widgetShow fileChooserButton
  GI.Gtk.widgetShow windowWidthSelectionComboBoxText
  GI.Gtk.setToggleButtonActive repeatCheckButton False
  GI.Gtk.entrySetText fileChooserEntry ""
  GI.Gtk.labelSetText fileChooserButtonLabel "Open"
  GI.Gtk.windowResize window (fromIntegral desiredWindowWidth :: Int32) 1
  GI.Gtk.styleContextRemoveClass styleContext "movie-monad-fade-in"
  setCursor window Nothing
  setPlayPauseButton playPauseButton playImage pauseImage False