# -*- coding: utf-8 -*-
import re
import os
import cStringIO
import threading
import arrow
import messages
import requests
import languageHandler
import widgetUtils
import output
import wx
import webbrowser
import utils
import logging
from sessionmanager import session # We'll use some functions from there
from pubsub import pub
from wxUI.dialogs import postDialogs, urlList
from extra import SpellChecker, translator
from mysc.thread_utils import call_threaded
from wxUI import menus

log = logging.getLogger("controller.post")

def get_user(id, profiles):
	""" Returns an user name and last name  based in the id receibed."""
	for i in profiles:
		if i["id"] == id:
			return u"{0} {1}".format(i["first_name"], i["last_name"])
	# Translators: This string is user when socializer can't find the right user information.
	return _(u"Unknown username")

def add_attachment(attachment):
	msg = u""
	tpe = ""
	if attachment["type"] == "link":
		msg = u"{0}: {1}".format(attachment["link"]["title"], attachment["link"]["url"])
		tpe = _(u"Link")
	elif attachment["type"] == "photo":
		tpe = _(u"Photo")
		msg = attachment["photo"]["text"]
		if msg == "":
			msg = _(u"no description available")
	elif attachment["type"] == "video":
		msg = u"{0}".format(attachment["video"]["title"],)
		tpe = _(u"Video")
	elif attachment["type"] == "audio":
		msg = u"{0}".format(" ".join(session.compose_audio(attachment["audio"])))
		tpe = _(u"Audio")
	elif attachment["type"] == "doc":
		msg = u"{0}".format(attachment["doc"]["title"])
		tpe = _(u"{0} file").format(attachment["doc"]["ext"])
	return [tpe, msg]

def get_message(status):
	message = ""
	if status.has_key("text"):
		message = utils.clean_text(status["text"])
	return message

class postController(object):
	""" Base class for post representation."""

	def __init__(self, session, postObject):
		super(postController, self).__init__()
		self.session = session
		self.post = postObject
		# Posts from newsfeed contains this source_id instead from_id in walls. Also it uses post_id and walls use just id.
		if self.post.has_key("source_id"):
			self.user_identifier = "source_id"
			self.post_identifier = "post_id"
		else:
			# In wall's posts, if someone has posted in user's wall, owner_id should be used instead from_id
			# This will help for retrieving comments, do likes, etc.
			if not self.post.has_key("owner_id"):
				self.user_identifier = "from_id"
			else:
				self.user_identifier = "owner_id"
			self.post_identifier = "id"
		self.dialog = postDialogs.post()
#		self.dialog.comments.list.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.show_comment)
		widgetUtils.connect_event(self.dialog.like, widgetUtils.BUTTON_PRESSED, self.post_like)
		widgetUtils.connect_event(self.dialog.comment, widgetUtils.BUTTON_PRESSED, self.add_comment)
		widgetUtils.connect_event(self.dialog.tools, widgetUtils.BUTTON_PRESSED, self.show_tools_menu)
		widgetUtils.connect_event(self.dialog.repost, widgetUtils.BUTTON_PRESSED, self.post_repost)
#		self.dialog.Bind(wx.EVT_LIST_ITEM_RIGHT_CLICK, self.show_menu, self.dialog.comments.list)
#		self.dialog.Bind(wx.EVT_LIST_KEY_DOWN, self.show_menu_by_key, self.dialog.comments.list)
		self.worker = threading.Thread(target=self.load_all_components)
		self.worker.finished = threading.Event()
		self.worker.start()
#		if self.post.has_key("attachments"): print self.post["attachments"]
		self.attachments = []
		self.load_images = False
		# We'll put images here, so it will be easier to work with them.
		self.images = []
		self.imageIndex = 0

	def get_comments(self):
		""" Get comments and insert them in a list."""
		user = self.post[self.user_identifier]
		id = self.post[self.post_identifier]
		self.comments = self.session.vk.client.wall.getComments(owner_id=user, post_id=id, need_likes=1, count=100, extended=1, preview_length=0)
		comments_ = []
		for i in self.comments["items"]:
			from_ = get_user(i["from_id"], self.comments["profiles"])
			if i.has_key("reply_to_user"):
				extra_info = get_user(i["reply_to_user"], self.comments["profiles"])
				from_ = _(u"{0} > {1}").format(from_, extra_info)
			# As we set the comment reply properly in the from_ field, let's remove the first username from here if it exists.
			fixed_text = re.sub("^\[id\d+\|\D+\], ", "", i["text"])
			if len(fixed_text) > 140:
				text = fixed_text[:141]
			else:
				text = fixed_text
			original_date = arrow.get(i["date"])
			created_at = original_date.humanize(locale=languageHandler.getLanguage())
			likes = str(i["likes"]["count"])
			comments_.append((from_, text, created_at, likes))
		try:
			self.dialog.insert_comments(comments_)
		except wx.PyDeadObjectError:
			pass

	def get_post_information(self):
		from_ = self.session.get_user_name(self.post[self.user_identifier])
		if self.post.has_key("copy_history"):
			# Translators: {0} will be replaced with an user.
			title = _(u"repost from {0}").format(from_,)
		else:
			if self.post.has_key("from_id") and self.post.has_key("owner_id"):
				# Translators: {0} will be replaced with the user who is posting, and {1} with the wall owner.
				title = _(u"Post from {0} in the {1}'s wall").format(self.session.get_user_name(self.post["from_id"]), self.session.get_user_name(self.post["owner_id"]))
			else:
				title = _(u"Post from {0}").format(from_,)
		self.dialog.set_title(title)
		message = u""
		message = get_message(self.post)
		if self.post.has_key("copy_history"):
			nm = u"\n"
			for i in self.post["copy_history"]:
				nm += u"{0}: {1}\n\n".format(self.session.get_user_name(i["from_id"]),  get_message(i))
				self.get_attachments(i)
			message += nm
		self.dialog.set_post(message)
		self.get_attachments(self.post)
		self.check_image_load()

	def get_attachments(self, post):
		attachments = []
		if post.has_key("attachments"):
			for i in post["attachments"]:
				# We don't need the photos_list attachment, so skip it.
				if i["type"] == "photos_list":
					continue
				if i["type"] == "photo":
					if self.load_images == False: self.load_images = True
					self.images.append(i)
				attachments.append(add_attachment(i))
				self.attachments.append(i)
		# Links in text are not treated like normal attachments, so we'll have to catch and add those to the list without title
		# We can't get a title because title is provided by the VK API and it will not work for links as simple text.
		urls = utils.find_urls_in_text(self.dialog.get("post_view"))
		print urls
		if len(urls) > 0:
			links = []
			for i in urls:
				links.append({"link": {"title": _(U"Untitled link"), "url": i}, "type": "link"})
			for i in links:
				attachments.append(add_attachment(i))
				self.attachments.append(i)
		if len(self.attachments) > 0:
			self.dialog.attachments.list.Enable(True)
			self.dialog.attachments.list.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.open_attachment)
			self.dialog.insert_attachments(attachments)

	def check_image_load(self):
		if self.load_images and len(self.images) > 0 and self.session.settings["general"]["load_images"]:
			self.dialog.image.Enable(True)
			nav = False # Disable navigation controls in photos
			if len(self.images) > 1:
				nav = True
				widgetUtils.connect_event(self.dialog.previous_photo, widgetUtils.BUTTON_PRESSED, self.set_previous_image)
				widgetUtils.connect_event(self.dialog.next_photo, widgetUtils.BUTTON_PRESSED, self.set_next_image)
			self.dialog.enable_photo_controls(navigation=nav)
			self.set_image(0)

	def set_next_image(self, *args, **kwargs):
		if self.imageIndex < -1 or self.imageIndex == len(self.images)-1:
			self.imageIndex = -1
		if len(self.images) <= self.imageIndex+1:
			self.imageIndex = 0
		else:
			self.imageIndex = self.imageIndex + 1
		self.set_image(self.imageIndex)

	def set_previous_image(self, *args, **kwargs):
		if self.imageIndex <= 0:
			self.imageIndex = len(self.images)
		self.imageIndex = self.imageIndex - 1
		self.set_image(self.imageIndex)

	def set_image(self, index):
		if len(self.images) < index-1:
			log.exception("Error in loading image {0} in a list with {1} images".format(index, len(self.images)))
			return
		url = self.get_photo_url(self.images[index]["photo"], 604)
		if url != "":
			img = requests.get(url)
			image = wx.ImageFromStream(cStringIO.StringIO(requests.get(url).content))
			try:
				self.dialog.image.SetBitmap(wx.BitmapFromImage(image))
			except:
				return
			self.dialog.SetClientSize(self.dialog.sizer.CalcMin())
			# Translators: {0} is the number of the current photo and {1} is the total number of photos.
			output.speak(_(u"Loaded photo {0} of {1}").format(index+1, len(self.images)))
		return

	def get_photo_url(self, photo, size=1080):
		possible_sizes = [1280, 604, 130, 75]
		url = ""
		for i in possible_sizes:
			if photo.has_key("photo_{0}".format(i,)) and i == size:
				url = photo["photo_{0}".format(i,)]
				print photo
				break
		return url

	def load_all_components(self):
		self.get_post_information()
		self.get_likes()
		self.get_reposts()
		self.get_comments()
		if self.post["comments"]["can_post"] == 0:
			self.dialog.disable("comment")
		if self.post["likes"]["can_like"] == 0 and self.post["likes"]["user_likes"] == 0:
			self.dialog.disable("like")
		elif self.post["likes"]["user_likes"] == 1:
			self.dialog.set("like", _(u"&Dislike"))
		if self.post["likes"]["can_publish"] == 0:
			self.dialog.disable("repost")

	def post_like(self, *args, **kwargs):
		if self.post.has_key("owner_id") == False:
			user = int(self.post[self.user_identifier])
		else:
			user = int(self.post["owner_id"])
		id = int(self.post[self.post_identifier])
		if self.post.has_key("type"):
			type_ = self.post["type"]
		else:
			type_ = "post"
		if self.dialog.get("like") == _(u"&Dislike"):
			l = self.session.vk.client.likes.delete(owner_id=user, item_id=id, type=type_)
			output.speak(_(u"You don't like this"))
			self.post["likes"]["count"] = l["likes"]
			self.post["likes"]["user_likes"] = 2
			self.get_likes()
			self.dialog.set("like", _(u"&Like"))
		else:
			l = self.session.vk.client.likes.add(owner_id=user, item_id=id, type=type_)
			output.speak(_(u"You liked this"))
			self.dialog.set("like", _(u"&Dislike"))
			self.post["likes"]["count"] = l["likes"]
			self.post["likes"]["user_likes"] = 1
			self.get_likes()

	def post_repost(self, *args, **kwargs):
		object_id = "wall{0}_{1}".format(self.post[self.user_identifier], self.post[self.post_identifier])
		p = messages.post(title=_(u"Repost"), caption=_(u"Add your comment here"), text="")
		if p.message.get_response() == widgetUtils.OK:
			msg = p.message.get_text().encode("utf-8")
			self.session.vk.client.wall.repost(object=object_id, message=msg)

	def get_likes(self):
		try:
			self.dialog.set_likes(self.post["likes"]["count"])
		except wx.PyDeadObjectError:
			pass

	def get_reposts(self):
		try:
			self.dialog.set_shares(self.post["reposts"]["count"])
		except wx.PyDeadObjectError:
			pass

	def add_comment(self, *args, **kwargs):
		comment = messages.comment(title=_(u"Add a comment"), caption="", text="")
		if comment.message.get_response() == widgetUtils.OK:
			msg = comment.message.get_text().encode("utf-8")
			try:
				user = self.post[self.user_identifier]
				id = self.post[self.post_identifier]
				self.session.vk.client.wall.addComment(owner_id=user, post_id=id, text=msg)
				output.speak(_(u"You've posted a comment"))
				if self.comments["count"] < 100:
					self.clear_comments_list()
					self.get_comments()
			except Exception as msg:
				print msg

	def clear_comments_list(self):
		self.dialog.comments.clear()

	def show_comment(self, *args, **kwargs):
		c = comment(self.session, self.comments["data"][self.dialog.comments.get_selected()])
		c.dialog.get_response()

	def show_menu(self, *args, **kwargs):
		if self.dialog.comments.get_count() == 0: return
		menu = menus.commentMenu()
		widgetUtils.connect_event(self.dialog, widgetUtils.MENU, self.show_comment, menuitem=menu.open)
		widgetUtils.connect_event(self.dialog, widgetUtils.MENU, self.comment_like, menuitem=menu.like)
		widgetUtils.connect_event(self.dialog, widgetUtils.MENU, self.comment_unlike, menuitem=menu.unlike)
		self.dialog.PopupMenu(menu, self.dialog.comments.list.GetPosition())

	def show_menu_by_key(self, ev):
		if ev.GetKeyCode() == wx.WXK_WINDOWS_MENU:
			self.show_menu()

	def show_tools_menu(self, *args, **kwargs):
		menu = menus.toolsMenu()
		widgetUtils.connect_event(self.dialog, widgetUtils.MENU, self.open_url, menuitem=menu.url)
		widgetUtils.connect_event(self.dialog, widgetUtils.MENU, self.translate, menuitem=menu.translate)
		widgetUtils.connect_event(self.dialog, widgetUtils.MENU, self.spellcheck, menuitem=menu.CheckSpelling)
		self.dialog.PopupMenu(menu, self.dialog.tools.GetPosition())

	def comment_like(self, *args, **kwargs):
		comment_id = self.comments["data"][self.dialog.comments.get_selected()]["id"]
		self.session.like(comment_id)
		output.speak(_(u"You do like this comment"))

	def comment_unlike(self, *args, **kwargs):
		comment_id = self.comments["data"][self.dialog.comments.get_selected()]["id"]
		self.session.unlike(comment_id)
		output.speak(_(u"You don't like this comment"))

	def translate(self, *args, **kwargs):
		dlg = translator.gui.translateDialog()
		if dlg.get_response() == widgetUtils.OK:
			text_to_translate = self.dialog.post_view.GetValue().encode("utf-8")
			source = [x[0] for x in translator.translator.available_languages()][dlg.get("source_lang")]
			dest = [x[0] for x in translator.translator.available_languages()][dlg.get("dest_lang")]
			msg = translator.translator.translate(text_to_translate, source, dest)
			self.dialog.post_view.ChangeValue(msg)
			output.speak(_(u"Translated"))
		else:
			return

	def spellcheck(self, *args, **kwargs):
		text = self.dialog.post_view.GetValue()
		checker = SpellChecker.spellchecker.spellChecker(text, "")
		if hasattr(checker, "fixed_text"):
			self.dialog.post_view.ChangeValue(checker.fixed_text)

	def open_attachment(self, *args, **kwargs):
		index = self.dialog.attachments.get_selected()
		attachment = self.attachments[index]
		if attachment["type"] == "audio":
			a = audio(session=self.session, postObject=[attachment["audio"]])
			a.dialog.get_response()
			a.dialog.Destroy()
		if attachment["type"] == "link":
			output.speak(_(u"Opening URL..."), True)
			webbrowser.open_new_tab(attachment["link"]["url"])
		elif attachment["type"] == "doc":
			output.speak(_(u"Opening document in web browser..."))
			webbrowser.open(attachment["doc"]["url"])
		elif attachment["type"] == "video":
			# it seems VK doesn't like to attach video links as normal URLS, so we'll have to
			# get the full video object and use its "player" key  which will open a webbrowser in their site with a player for the video.
			# see https://vk.com/dev/attachments_w and and https://vk.com/dev/video.get
			# However, the flash player  isn't good  for visually impaired people (when you press play you won't be able to close the window with alt+f4), so it could be good to use the HTML5 player.
			# For firefox,  see https://addons.mozilla.org/ru/firefox/addon/force-html5-video-player-at-vk/
			# May be I could use a dialogue here for inviting people to use this addon in firefox. It seems it isn't possible to use this html5 player from the player URL.
			object_id = "{0}_{1}".format(attachment["video"]["owner_id"], attachment["video"]["id"])
			video_object = self.session.vk.client.video.get(owner_id=attachment["video"]["owner_id"], videos=object_id)
			video_object = video_object["items"][0]
			output.speak(_(u"Opening video in web browser..."), True)
			webbrowser.open_new_tab(video_object["player"])
		elif attachment["type"] == "photo":
			output.speak(_(u"Opening photo in web browser..."), True)
			# Possible photo sizes for looking in the attachment information. Try to use the biggest photo available.
			possible_sizes = [1280, 604, 130, 75]
			url = ""
			for i in possible_sizes:
				if attachment["photo"].has_key("photo_{0}".format(i,)):
					url = attachment["photo"]["photo_{0}".format(i,)]
					break
			if url != "":
				webbrowser.open_new_tab(url)
			else:
				print attachment["photo"].keys()
		else:
			log.debug("Unhandled attachment: %r" % (attachment,))

	def __del__(self):
		self.worker.finished.set()

class comment(object):
	def __init__(self, session, comment_object):
		super(comment, self).__init__()
		self.session = session
		self.comment = comment_object
		self.dialog = postDialogs.comment()
		from_ = self.comment["from"]["name"]
		message = self.comment["message"]
		original_date = arrow.get(self.comment["created_time"], "YYYY-MM-DTHH:m:sZ", locale="en")
		created_at = original_date.humanize(locale=languageHandler.getLanguage())
		self.dialog.set_post(message)
		self.dialog.set_title(_(u"Comment from {0}").format(from_,))
		widgetUtils.connect_event(self.dialog.like, widgetUtils.BUTTON_PRESSED, self.post_like)
		call_threaded(self.get_likes)

	def get_likes(self):
		self.likes = self.session.fb.client.get_connections(id=self.comment["id"], connection_name="likes", summary=True)
		self.dialog.set_likes(self.likes["summary"]["total_count"])

	def post_like(self, *args, **kwargs):
		lk = self.session.like(self.comment["id"])
		self.get_likes()

class audio(postController):
	def __init__(self, session, postObject):
		self.added_audios = {}
		self.session = session
		self.post = postObject
		self.dialog = postDialogs.audio()
		widgetUtils.connect_event(self.dialog.list, widgetUtils.LISTBOX_CHANGED, self.handle_changes)
		self.load_audios()
		self.fill_information(0)
		widgetUtils.connect_event(self.dialog.download, widgetUtils.BUTTON_PRESSED, self.download)
		widgetUtils.connect_event(self.dialog.play, widgetUtils.BUTTON_PRESSED, self.play)
		widgetUtils.connect_event(self.dialog.add, widgetUtils.BUTTON_PRESSED, self.add_to_library)
		widgetUtils.connect_event(self.dialog.remove, widgetUtils.BUTTON_PRESSED, self.remove_from_library)

	def add_to_library(self, *args, **kwargs):
		post = self.post[self.dialog.get_audio()]
		args = {}
		args["audio_id"] = post["id"]
		if post.has_key("album_id"):
			args["album_id"] = post["album_id"]
		args["owner_id"] = post["owner_id"]
		audio = self.session.vk.client.audio.add(**args)
		if audio != None and int(audio) > 21:
			self.added_audios[post["id"]] = audio
			self.dialog.change_state("add", False)
			self.dialog.change_state("remove", True)

	def remove_from_library(self, *args, **kwargs):
		post = self.post[self.dialog.get_audio()]
		args = {}
		if self.added_audios.has_key(post["id"]):
			args["audio_id"] = self.added_audios[post["id"]]
			args["owner_id"] = self.session.user_id
		else:
			args["audio_id"] = post["id"]
			args["owner_id"] = post["owner_id"]
		result = self.session.vk.client.audio.delete(**args)
		if int(result) == 1:
			self.dialog.change_state("add", True)
			self.dialog.change_state("remove", False)
			if self.added_audios.has_key(post["id"]):
				self.added_audios.pop(post["id"])

	def fill_information(self, index):
		post = self.post[index]
		if post.has_key("artist"):
			self.dialog.set("artist", post["artist"])
		if post.has_key("title"):
			self.dialog.set("title", post["title"])
		if post.has_key("duration"):
			self.dialog.set("duration", utils.seconds_to_string(post["duration"]))
		self.dialog.set_title(u"{0} - {1}".format(post["title"], post["artist"]))
		call_threaded(self.get_lyrics)
		if  post["owner_id"] == self.session.user_id or self.added_audios.has_key(post["id"]) == True:
			self.dialog.change_state("remove", True)
			self.dialog.change_state("add", False)
		else:
			self.dialog.change_state("add", True)
			self.dialog.change_state("remove", False)

	def get_lyrics(self):
		post = self.post[self.dialog.get_audio()]
		if post.has_key("lyrics_id"):
			l = self.session.vk.client.audio.getLyrics(lyrics_id=int(post["lyrics_id"]))
			self.dialog.set("lyric", l["text"])
		else:
			self.dialog.change_state("lyric", False)

	def download(self, *args, **kwargs):
		post = self.post[self.dialog.get_audio()]
		f = u"{0} - {1}.mp3".format(post["title"], post["artist"])
		path = self.dialog.get_destination_path(f)
		if path != None:
			pub.sendMessage("download-file", url=post["url"], filename=path)

	def play(self, *args, **kwargs):
		post = self.post[self.dialog.get_audio()]
		pub.sendMessage("play-audio", audio_object=post)

	def load_audios(self):
		for i in self.post:
			s = u"{0} - {1}. {2}".format(i["title"], i["artist"], utils.seconds_to_string(i["duration"]))
			self.dialog.insert_audio(s)
		self.dialog.list.SetSelection(0)
		if len(self.post) == 1:
			self.dialog.list.Enable(False)
			self.dialog.title.SetFocus()

	def handle_changes(self, *args, **kwargs):
		p = self.dialog.get_audio()
		self.fill_information(p)

class friendship(object):

	def __init__(self, session, post):
		self.session = session
		self.post = post
		self.dialog = postDialogs.friendship()
		list_of_friends = self.get_friend_names()
		from_ = self.session.get_user_name(self.post["source_id"])
		title = _(u"{0} added the following friends").format(from_,)
		self.dialog.set_title(title)
		self.set_friends_list(list_of_friends)

	def get_friend_names(self):
		self.friends = self.post["friends"]["items"]
		return [self.session.get_user_name(i["user_id"]) for i in self.friends]

	def set_friends_list(self, friendslist):
		for i in friendslist:
			self.dialog.friends.insert_item(False, *[i])