from Screen import Screen
from Components.Button import Button
from Components.ServiceList import ServiceList
from Components.ActionMap import ActionMap
from Components.MovieList import MovieList
from Components.DiskInfo import DiskInfo
from Components.Label import Label
from Components.PluginComponent import plugins
from Plugins.Plugin import PluginDescriptor

from Screens.MessageBox import MessageBox
from Screens.FixedMenu import FixedMenu

from Tools.Directories import *
from Tools.BoundFunction import boundFunction

from enigma import eServiceReference, eServiceCenter, eTimer

class ChannelContextMenu(FixedMenu):
	def __init__(self, session, csel, service):
		self.csel = csel
		self.service = service
		
		menu = [(_("back"), self.close), (_("delete..."), self.delete)]
		
		for p in plugins.getPlugins(PluginDescriptor.WHERE_MOVIELIST):
			menu.append((p.description, boundFunction(self.execPlugin, p)))
		
		FixedMenu.__init__(self, session, _("Movie Menu"), menu)
		self.skinName = "Menu"
	
	def execPlugin(self, plugin):
		plugin(session=self.session, service=self.service)

	def delete(self):
		serviceHandler = eServiceCenter.getInstance()
		offline = serviceHandler.offlineOperations(self.service)
		result = False
		if offline is not None:
			# simulate first
			if not offline.deleteFromDisk(1):
				result = True
		
		if result == True:
			self.session.openWithCallback(self.deleteConfirmed, MessageBox, _("Do you really want to delete this recording?"))
		else:
			self.session.openWithCallback(self.close, MessageBox, _("You cannot delete this!"), MessageBox.TYPE_ERROR)

	def deleteConfirmed(self, confirmed):
		if not confirmed:
			return self.close()
			
		serviceHandler = eServiceCenter.getInstance()
		offline = serviceHandler.offlineOperations(self.service)
		result = False
		if offline is not None:
			# really delete!
			if not offline.deleteFromDisk(0):
				result = True
		
		if result == False:
			self.session.openWithCallback(self.close, MessageBox, _("Delete failed!"), MessageBox.TYPE_ERROR)
		else:
			list = self.csel["list"].removeService(self.service)
			self.close()
 
class MovieSelection(Screen):
	def __init__(self, session, selectedmovie = None):
		Screen.__init__(self, session)
		
		self.movemode = False
		self.bouquet_mark_edit = False
		
		self.delayTimer = eTimer()
		self.delayTimer.timeout.get().append(self.updateHDDData)
		
		self["waitingtext"] = Label(_("Please wait... Loading list..."))
		
		self["list"] = MovieList(None)
		self.list = self["list"]
		self.selectedmovie = selectedmovie
		
		#self["okbutton"] = Button("ok", [self.channelSelected])
		self["freeDiskSpace"] = DiskInfo(resolveFilename(SCOPE_HDD), DiskInfo.FREE, update=False)
		
		self["actions"] = ActionMap(["OkCancelActions", "MovieSelectionActions"],
			{
				"cancel": self.abort,
				"ok": self.movieSelected,
				"contextMenu": self.doContext,
			})
		self["actions"].csel = self
		self.onShown.append(self.go)
		
		self.lengthTimer = eTimer()
		self.lengthTimer.timeout.get().append(self.updateLengthData)
		
	def go(self):
		# ouch. this should redraw our "Please wait..."-text.
		# this is of course not the right way to do this.
		self.delayTimer.start(10, 1)

	def updateHDDData(self):
		self["list"].reload(eServiceReference("2:0:1:0:0:0:0:0:0:0:" + resolveFilename(SCOPE_HDD)))
		if (self.selectedmovie is not None):
			self.moveTo()
		self["waitingtext"].instance.hide()
						
		self["freeDiskSpace"].update()
		
		self.lengthTimer.start(10, 1)
		self.lengthPosition = 0
		self.lengthLength = len(self["list"])
		
	def updateLengthData(self):
		self.list.updateLengthOfIndex(self.lengthPosition)
		self.lengthPosition += 1
		if self.lengthPosition < self.lengthLength:
			self.lengthTimer.start(10, 1)

	def moveTo(self):
		self["list"].moveTo(self.selectedmovie)

	def getCurrent(self):
		return self["list"].getCurrent()

	def movieSelected(self):
		current = self.getCurrent()
		if current is not None:
			self.close(current)

	def doContext(self):
		current = self.getCurrent()
		if current is not None:
			self.session.open(ChannelContextMenu, self, current)

	def abort(self):
		self.close(None)