from Screens.Screen import Screen
from Plugins.Plugin import PluginDescriptor

from enigma import eTimer

from Components.ActionMap import ActionMap
from Components.Label import Label
from Components.Pixmap import Pixmap
from Screens.MessageBox import MessageBox
from Screens.Setup import SetupSummary
from Components.ConfigList import ConfigListScreen
from Components.config import getConfigListEntry, config
from VideoWizard import VideoWizard
from Components.config import config

from VideoHardware import video_hw

class VideoSetup(Screen, ConfigListScreen):
	def __init__(self, session, hw):
		Screen.__init__(self, session)
		self.skinName = "Setup"
		self.setup_title = "Videomode Setup"
		self.hw = hw
		self.onChangedEntry = [ ]

		# handle hotplug by re-creating setup
		self.onShow.append(self.startHotplug)
		self.onHide.append(self.stopHotplug)

		self.list = [ ]
		ConfigListScreen.__init__(self, self.list, session = session, on_change = self.changedEntry)

		self["actions"] = ActionMap(["SetupActions"], 
			{
				"cancel": self.keyCancel,
				"save": self.apply,
			}, -2)

		self["title"] = Label(_("A/V Settings"))

		self["oktext"] = Label(_("OK"))
		self["canceltext"] = Label(_("Cancel"))
		self["ok"] = Pixmap()
		self["cancel"] = Pixmap()

		self.createSetup()
		self.grabLastGoodMode()

	def startHotplug(self):
		self.hw.on_hotplug.append(self.createSetup)

	def stopHotplug(self):
		self.hw.on_hotplug.remove(self.createSetup)

	def createSetup(self):
		level = config.usage.setup_level.index

		self.list = [ ]
		self.list.append(getConfigListEntry(_("Video Output"), config.av.videoport))

		# if we have modes for this port:
		if config.av.videoport.value in config.av.videomode:
			# add mode- and rate-selection:
			self.list.append(getConfigListEntry(_("Mode"), config.av.videomode[config.av.videoport.value]))
			self.list.append(getConfigListEntry(_("Refresh Rate"), config.av.videorate[config.av.videomode[config.av.videoport.value].value]))

#		if config.av.videoport.value == "DVI":
#			self.list.append(getConfigListEntry(_("Allow Unsupported Modes"), config.av.edid_override))
		if config.av.videoport.value == "Scart":
			self.list.append(getConfigListEntry(_("Color Format"), config.av.colorformat))
			self.list.append(getConfigListEntry(_("Aspect Ratio"), config.av.aspectratio))
			if level >= 1:
				self.list.append(getConfigListEntry(_("WSS on 4:3"), config.av.wss))

		if level >= 1:
			self.list.append(getConfigListEntry(_("AC3 default"), config.av.defaultac3))

		self["config"].list = self.list
		self["config"].l.setList(self.list)

	def keyLeft(self):
		ConfigListScreen.keyLeft(self)
		self.createSetup()

	def keyRight(self):
		ConfigListScreen.keyRight(self)
		self.createSetup()

	def confirm(self, confirmed):
		if not confirmed:
			self.hw.setMode(*self.last_good)
		else:
			self.keySave()

	def grabLastGoodMode(self):
		port = config.av.videoport.value
		mode = config.av.videomode[port].value
		rate = config.av.videorate[mode].value
		self.last_good = (port, mode, rate)

	def apply(self):
		port = config.av.videoport.value
		mode = config.av.videomode[port].value
		rate = config.av.videorate[mode].value
		if (port, mode, rate) != self.last_good:
			self.hw.setMode(port, mode, rate)
			self.session.openWithCallback(self.confirm, MessageBox, "Is this videomode ok?", MessageBox.TYPE_YESNO, timeout = 20, default = False)
		else:
			self.keySave()

	# for summary:
	def changedEntry(self):
		for x in self.onChangedEntry:
			x()

	def getCurrentEntry(self):
		return self["config"].getCurrent()[0]

	def getCurrentValue(self):
		return str(self["config"].getCurrent()[1].getText())

	def createSummary(self):
		return SetupSummary

class VideomodeHotplug:
	def __init__(self, hw):
		self.hw = hw

	def start(self):
		self.hw.on_hotplug.append(self.hotplug)

	def stop(self):
		self.hw.on_hotplug.remove(self.hotplug)

	def hotplug(self, what):
		print "hotplug detected on port '%s'" % (what)
		port = config.av.videoport.value
		mode = config.av.videomode[port].value
		rate = config.av.videorate[mode].value

		if not self.hw.isModeAvailable(port, mode, rate):
			print "mode %s/%s/%s went away!" % (port, mode, rate)
			modelist = self.hw.getModeList(port)
			if not len(modelist):
				print "sorry, no other mode is available (unplug?). Doing nothing."
				return
			mode = modelist[0][0]
			rate = modelist[0][1]
			print "setting %s/%s/%s" % (port, mode, rate)
			self.hw.setMode(port, mode, rate)

hotplug = None

def startHotplug():
	global hotplug, video_hw
	hotplug = VideomodeHotplug(video_hw)
	hotplug.start()

def stopHotplug():
	global hotplug
	hotplug.stop()


def autostart(reason, session = None, **kwargs):
	if session is not None:
		global my_global_session
		my_global_session = session
		return

	if reason == 0:
		startHotplug()
	elif reason == 1:
		stopHotplug()

def videoSetupMain(session, **kwargs):
	session.open(VideoSetup, video_hw)

def startSetup(menuid):
	if menuid != "system": 
		return [ ]

	return [(_("A/V Settings") + "...", videoSetupMain, "av_setup", 40)]

def Plugins(**kwargs):
	list = [
#		PluginDescriptor(where = [PluginDescriptor.WHERE_SESSIONSTART, PluginDescriptor.WHERE_AUTOSTART], fnc = autostart),
		PluginDescriptor(name=_("Video Setup"), description=_("Advanced Video Setup"), where = PluginDescriptor.WHERE_MENU, fnc=startSetup) 
	]
	if config.misc.firstrun.value:
		list.append(PluginDescriptor(name=_("Video Wizard"), where = PluginDescriptor.WHERE_WIZARD, fnc=(0, VideoWizard)))
 	return list