#!/usr/bin/python3
import gi, logging
from gi.repository import Gtk, Gst

from lib.config import Config
from lib.uibuilder import UiBuilder
from lib.videodisplay import VideoDisplay

class Ui(UiBuilder):
	def __init__(self, uifile):
		self.log = logging.getLogger('Ui')
		super().__init__(uifile)

	def setup(self):
		self.log.info('Initializing Ui')

		# Aquire the Main-Window from the UI-File
		self.win = self.get_check_widget('window')

		# Connect Close-Handler
		self.win.connect('delete-event', Gtk.main_quit)

		self.previews = {}
		self.preview_players = {}

		self.configure_video_main()
		self.configure_video_previews()
		self.configure_audio_selector()
		self.configure_streamblank_selector()

	def configure_video_main(self):
		self.log.info('Initializing Main Video and Main Audio-Level View')

		video = self.find_widget_recursive(self.win, 'video_main')
		audiolevel = self.find_widget_recursive(self.win, 'audiolevel_main')
		self.video_main_player = VideoDisplay(11000, video, audiolevel,
			playaudio=Config.getboolean('mainvideo', 'playaudio'))

	def configure_video_previews(self):
		self.log.info('Initializing Video Previews')

		sources = ['cam1', 'cam2', 'grabber']
		box = self.find_widget_recursive(self.win, 'box_left')

		try:
			width = Config.getint('previews', 'width')
			self.log.debug('Preview-Width configured to %u', width)
		except:
			width = 320
			self.log.debug('Preview-Width selected as %u', width)

		try:
			height = Config.getint('previews', 'height')
			self.log.debug('Preview-Height configured to %u', width)
		except:
			height = width*9/16
			self.log.debug('Preview-Height calculated to %u', width)


		# Accelerators
		accelerators = Gtk.AccelGroup()
		self.win.add_accel_group(accelerators)

		for idx, source in enumerate(sources):
			self.log.info('Initializing Video Preview %s', source)

			preview = self.get_check_widget('widget_preview', clone=True)
			video = self.find_widget_recursive(preview, 'video')

			video.set_size_request(width, height)
			box.pack_start(preview, fill=False, expand=False, padding=0)

			player = VideoDisplay(13000 + idx, video)

			self.find_widget_recursive(preview, 'label').set_label(source)
			btn_a = self.find_widget_recursive(preview, 'btn_a')
			btn_b = self.find_widget_recursive(preview, 'btn_b')

			btn_a.connect('toggled', self.preview_btn_toggled)
			btn_b.connect('toggled', self.preview_btn_toggled)

			key, mod = Gtk.accelerator_parse('%u' % (idx+1))
			btn_a.add_accelerator('activate', accelerators, key, mod, Gtk.AccelFlags.VISIBLE)

			key, mod = Gtk.accelerator_parse('<Ctrl>%u' % (idx+1))
			btn_b.add_accelerator('activate', accelerators, key, mod, Gtk.AccelFlags.VISIBLE)

			self.preview_players[source] = player
			self.previews[source] = preview


	def preview_btn_toggled(self, btn):
		self.log.info('preview_btn_toggled')

	def configure_audio_selector(self):
		self.log.info('Initializing Audio Selector')

		combo = self.find_widget_recursive(self.win, 'combo_audio')
		combo.set_sensitive(True)

		# FIXME access via combo_audio?
		liststore = self.get_check_widget('liststore_audio')
		liststore.clear()

		row = liststore.append()
		liststore.set(row, [0], ['foobar'])

		row = liststore.append('')
		liststore.set(row, [0], ['moofar'])

		combo.set_active_id('moofar')

	def configure_streamblank_selector(self):
		livebtn = self.get_check_widget('stream_live')
		blankbtn = self.get_check_widget('stream_blank')
		toolbar = blankbtn.get_parent()
		pos = toolbar.get_item_index(blankbtn)

		for idx, name in enumerate(['pause', 'nostream']):
			if idx == 0:
				new_btn = blankbtn
			else:
				new_icon = Gtk.Image.new_from_pixbuf(blankbtn.get_icon_widget().get_pixbuf())
				new_btn = Gtk.RadioToolButton(group=livebtn)
				new_btn.set_icon_widget(new_icon)
				toolbar.insert(new_btn, pos+1)

			new_btn.set_label("Stream %s" % name)

	def show(self):
		self.log.info('Running Video-Playback Pipelines')

		self.video_main_player.run()
		for name, player in self.preview_players.items():
			player.run()

		self.log.info('Showing Main-Window')
		self.win.show_all()