import codecs
import html
import os.path
import textwrap
import urllib

from escpos import printer
import facebook
import PIL
import requests
import twitter

from bureau import Bureau, add_command, add_api

class TWrapper():
    pass

class PublicRelations(Bureau):
    """
    The Public relations department manages the flow of information between
    the screenless office and the general public.  It provides interfaces
    for Twitter, Facebook and other electronic PR platforms.
    """

    name = "Public Relations"
    prefix = "PR"
    version = 0

    def __init__(self):
        Bureau.__init__(self)

        CK = codecs.decode("neV4HPasZrXMjNaliWWVUIaHA",
                           "rot13")
        CS = codecs.decode("ntegmiu3rdFAyMczCWM0bgpydFHwYXV3WedhtPCec1Pu9qdfGy",
                           "rot13")


        TW_CREDS = os.path.expanduser('~/.screenless/tw_creds')
        if not os.path.exists(TW_CREDS):
            twitter.oauth_dance("The Screenless Office", CK, CS,
                                TW_CREDS)

        oauth_token, oauth_secret = twitter.read_token_file(TW_CREDS)

        self.t = TWrapper()
        self.auth = twitter.OAuth(oauth_token, oauth_secret, CK, CS)
        self.t.t = twitter.Twitter(auth=self.auth)

    @add_command("tweetpic", "Post a Document Camera Image to Twitter")
    def tweet_pic(self):
        """
        Takes a photograph using the document camera and posts it to Twitter.
        """
        photo = self.send("PX", "photo")["photo"]

        with open(photo, "rb") as imagefile:
            imagedata = imagefile.read()
        t_up = twitter.Twitter(domain='upload.twitter.com', auth=self.auth)

        id_img1 = t_up.media.upload(media=imagedata)["media_id_string"]
        self.t.t.statuses.update(status="#screenless", media_ids=id_img1)

    @add_command("fbpost", "Post to Facebook")
    def post_fb(self):
        """
        Takes a photograph using the document camera and posts it to Facebook.
        """
        photo = self.send("PX", "photo")["photo"]

        access_token = 'EAADixisn70ABADh2rEMZAYA8nGzd6ah8RFZA3URba263aCQ63ajLeTiZC5sgZCyIVSmRZBWReVsO9IuaLibX5RjW9Ja2tTZAbxgrDr1dPJzyGwcGTSV9bW1W4NigN0d9dFIH35W2fZBOkhvuLqOCDCBacIPjXPMxF7DRGyrz5lVHxTc04OlBeRX'
        page_id = "screenless"
        graph = facebook.GraphAPI(access_token)
        #graph.put_object(parent_object=page_id, connection_name='feed',
        #                 message='testing screenless post')
        print("uploading photo " + photo)
        graph.put_photo(image=open(photo, 'rb'), album_path=page_id + "/photos",
                        message='test photo')
        #files = {"file": ("cam.jpg", open(photo, 'rb'))}
        #args = {}
        #args["access_token"] = access_token
        #args["caption"] = "test cam"
        #resp = requests.post(facebook.FACEBOOK_GRAPH_URL + graph.version + "/"\
        #                     + "me" + "/photos",
        #                     files=files,
        #                     params=args,
        #                     timeout=graph.timeout,
        #                     proxies=graph.proxies)
        #print(resp.json())

    @add_command("twtimeline", "Print Recent Tweets")
    def tw_timeline(self, data=None):
        """
        Print some recent tweets from your home timeline.  Default is 10.
        """
        if data:
            try:
                count = data["count"]
            except KeyError as err:
                print("You need to specify how many tweets you want!")
        else:
            count = 10

        prn = printer.Usb(0x416, 0x5011, in_ep=0x81, out_ep=0x03)
        prn.codepage = "cp437"

        # TODO: add fancier formatting i.e. inverted text for username/handle
        tweets = self.t.t.statuses.home_timeline(count=count)
        out = ""
        for t in tweets:
            prn.set(text_type="U")
            username = t["user"]["name"].encode("cp437", "ignore")
            prn._raw(username)
            prn.text("\r\n")
            prn.set(text_type="NORMAL")
            twtext = html.unescape(t["text"])
            t_wrapped = textwrap.fill(twtext, width=48) + "\r\n"
            t_enc = t_wrapped.encode("cp437", "ignore")
            prn._raw(t_enc)

            if "media" in t["entities"]:
                if len(t["entities"]["media"]) > 0:
                    i_url = t["entities"]["media"][0]["media_url"]
                    filename = i_url.rsplit('/',1)[1]
                    filename = "/tmp/" + filename
                    print("fetching", i_url, filename)
                    urllib.request.urlretrieve(i_url, filename)
                    im = PIL.Image.open(filename)
                    if im.mode in ("L", "RGB", "P"):
                        im = PIL.ImageOps.equalize(im)
                    im.thumbnail((576, 576), PIL.Image.ANTIALIAS)
                    prn.image(im, impl="bitImageColumn")

            prn.text("\r\n\r\n")

        prn.cut()
           


def main():
    pr = PublicRelations()
    pr.run()


if __name__ == "__main__":
    main()