#! /usr/bin/env python

import os
from gi.repository import Gtk

import playlist
import time_fmt

scriptdir = os.path.dirname(os.path.abspath(__file__))

class SyncGui:
  def __init__(self):
    self.builder = Gtk.Builder()
    self.builder.add_from_file(scriptdir + "/sync_gui.glade")
    self.playlistView = self.builder.get_object("PlaylistView")
    self.playlistStore = self.builder.get_object("PlaylistStore")
    self.position = self.builder.get_object("Position")
    self.positionScale = self.builder.get_object("PositionScale")
    self.positionAt = self.builder.get_object("PositionAt")
    self.positionRemaining = self.builder.get_object("PositionRemaining")
    self.btnPause = self.builder.get_object("Pause")
    self.btnPlay = self.builder.get_object("Play")
    self.status = self.builder.get_object("Status")
    self.configPlaylistColumns()
    handlers = {
      "onDestroy":     self.onDestroy,
      "onNewPosition": self.onNewPosition,
      "onPrevious":    self.onPrevious,
      "onBackward":    self.onBackward,
      "onStop":        self.onStop,
      "onPause":       self.onPause,
      "onPlay":        self.onPlay,
      "onForward":     self.onForward,
      "onNext":        self.onNext,
    }
    self.builder.connect_signals(handlers)
    self.playlist = playlist.Playlist()
    self.playlist.read("playlist.txt")
    self.playlist.update(self.playlistStore)
    self.status.push(0, "TODO...")
    self.showCurrentPosition()

  def configPlaylistColumns(self):
    i = 0
    for title in ["Name", "Dauer"]:
      column = Gtk.TreeViewColumn(title)
      self.playlistView.append_column(column)
      cell = Gtk.CellRendererText()
      column.pack_start(cell, False)
      column.add_attribute(cell, "text", i)
      i = i + 1

  def showPosition(self, sec):
    if sec < 0:
      sec = 0
    if sec > self.position.get_upper():
      sec = self.position.get_upper()
    posAt = time_fmt.sec2str(sec)
    posRemaining = time_fmt.sec2str(self.position.get_upper() - sec)
    self.positionAt.set_text(posAt)
    self.positionRemaining.set_text(posRemaining)

  def showCurrentPosition(self):
    sec = self.positionScale.get_value()
    self.showPosition(sec)

  def onDestroy(self, widget):
    Gtk.main_quit()

  def onNewPosition(self, widget, scroll, value):
    print("new position " + str(value));
    self.showPosition(value)

  def onPrevious(self, widget):
    print("previous")

  def onBackward(self, widget):
    print("backward")

  def onStop(self, widget):
    print("stop")
    self.btnPause.set_visible(False)
    self.btnPlay.set_visible(True)

  def onPause(self, widget):
    print("pause")
    self.btnPause.set_visible(False)
    self.btnPlay.set_visible(True)

  def onPlay(self, widget):
    print("play")
    self.btnPause.set_visible(True)
    self.btnPlay.set_visible(False)

  def onForward(self, widget):
    print("forward")

  def onNext(self, widget):
    print("next")

if __name__ == "__main__":
  app = SyncGui()
  Gtk.main()