import time
import datetime
import logging
import socket
import urllib
import shutil
import json
from lib import requests
from nzbtomedia.Transcoder import Transcoder
from nzbtomedia.nzbToMediaConfig import config
from nzbtomedia.nzbToMediaSceneExceptions import process_all_exceptions
from nzbtomedia.nzbToMediaUtil import getDirectorySize, convert_to_ascii

Logger = logging.getLogger()

class autoProcessMovie:
    def get_imdb(self, nzbName, dirName):
        imdbid = ""

        a = nzbName.find('.cp(') + 4 #search for .cptt( in nzbName
        b = nzbName[a:].find(')') + a
        if a > 3: # a == 3 if not exist
            imdbid = nzbName[a:b]

        if imdbid:
            Logger.info("Found movie id %s in name", imdbid)
            return imdbid

        a = dirName.find('.cp(') + 4 #search for .cptt( in dirname
        b = dirName[a:].find(')') + a
        if a > 3: # a == 3 if not exist
            imdbid = dirName[a:b]

        if imdbid:
            Logger.info("Found movie id %s in directory", imdbid)
            return imdbid

        else:
            Logger.debug("Could not find an imdb id in directory or name")
            return ""

    def get_movie_info(self, baseURL, imdbid, download_id):

        movie_id = ""
        movie_status = None
        release_status = None
        if not imdbid and not download_id:
            return movie_id, imdbid, download_id, movie_status, release_status

        releaselist = []
        movieid = []
        moviestatus = []
        library = []
        release = []
        offset = int(0)
        while True:
            url = baseURL + "media.list/?status=active&release_status=snatched&limit_offset=50," + str(offset)

            Logger.debug("Opening URL: %s", url)

            try:
                r = requests.get(url)
            except requests.ConnectionError:
                Logger.exception("Unable to open URL")
                break

            movieid2 = []
            library2 = []
            release2 = []
            moviestatus2 = []
            try:
                result = r.json()
                movieid2 = [item["_id"] for item in result["movies"]]
                for item in result["movies"]:
                    if "identifier" in item:
                        library2.append(item["identifier"])
                    else:
                        library2.append(item["identifiers"]["imdb"])
                release2 = [item["releases"] for item in result["movies"]]
                moviestatus2 = [item["status"] for item in result["movies"]]
            except:
                Logger.exception("Unable to parse json data for movies")
                break

            movieid.extend(movieid2)
            moviestatus.extend(moviestatus2)
            library.extend(library2)
            release.extend(release2)
            if len(movieid2) < int(50): # finished parsing list of movies. Time to break.
                break
            offset = offset + 50

        result = None # reset
        for index in range(len(movieid)):
            releaselist1 = [item for item in release[index] if item["status"] == "snatched" and "download_info" in item]
            if download_id:
                releaselist = [item for item in releaselist1 if item["download_info"]["id"].lower() == download_id.lower()]
            else:
                releaselist = releaselist1

            if imdbid and library[index] == imdbid:
                movie_id = str(movieid[index])
                movie_status = str(moviestatus[index])
                Logger.info("Found movie id %s with status %s in CPS database for movie %s", movie_id, movie_status, imdbid)
                if not download_id and len(releaselist) == 1:
                    download_id = releaselist[0]["download_info"]["id"]

            elif not imdbid and download_id and len(releaselist) > 0:
                movie_id = str(movieid[index])
                movie_status = str(moviestatus[index])
                imdbid = str(library[index])
                Logger.info("Found movie id %s and imdb %s with status %s in CPS database via download_id %s", movie_id, imdbid, movie_status, download_id)

            else:
                continue

            if len(releaselist) == 1:
                release_status = releaselist[0]["status"]
                Logger.debug("Found a single release with download_id: %s. Release status is: %s", download_id, release_status)

            break

        if not movie_id:
            Logger.exception("Could not parse database results to determine imdbid or movie id")

        return movie_id, imdbid, download_id, movie_status, release_status

    def get_status(self, baseURL, movie_id, download_id):
        result = None
        movie_status = None
        release_status = None
        if not movie_id:
            return movie_status, release_status

        Logger.debug("Looking for status of movie: %s", movie_id)
        url = baseURL + "media.get/?id=" + str(movie_id)
        Logger.debug("Opening URL: %s", url)

        try:
            r = requests.get(url)
        except requests.ConnectionError:
            Logger.exception("Unable to open URL")
            return None, None

        try:
            result = r.json()
            movie_status = str(result["media"]["status"])
            Logger.debug("This movie is marked as status %s in CouchPotatoServer", movie_status)
        except:
            Logger.exception("Could not find a status for this movie")

        try:
            if len(result["media"]["releases"]) == 1 and result["media"]["releases"][0]["status"] == "done":
                release_status = result["media"]["releases"][0]["status"]
            else:
                release_status_list = [item["status"] for item in result["media"]["releases"] if "download_info" in item and item["download_info"]["id"].lower() == download_id.lower()]
                if len(release_status_list) == 1:
                    release_status = release_status_list[0]
            Logger.debug("This release is marked as status %s in CouchPotatoServer", release_status)
        except: # index out of range/doesn't exist?
            Logger.exception("Could not find a status for this release")

        return movie_status, release_status

    def process(self, dirName, nzbName=None, status=0, clientAgent = "manual", download_id = "", inputCategory=None):
        if dirName is None:
            Logger.error("No directory was given!")
            return 1  # failure

        socket.setdefaulttimeout(int(config.NZBTOMEDIA_TIMEOUT))  #initialize socket timeout.
        Logger.info("Loading config from %s", config.CONFIG_FILE)

        status = int(status)

        section = "CouchPotato"
        host = config()[section][inputCategory]["host"]
        port = config()[section][inputCategory]["port"]
        apikey = config()[section][inputCategory]["apikey"]
        delay = float(config()[section][inputCategory]["delay"])
        method = config()[section][inputCategory]["method"]
        delete_failed = int(config()[section][inputCategory]["delete_failed"])
        wait_for = int(config()[section][inputCategory]["wait_for"])
        try:
            TimePerGiB = int(config()[section][inputCategory]["TimePerGiB"])
        except:
            TimePerGiB = 60 # note, if using Network to transfer on 100Mbit LAN, expect ~ 600 MB/minute.
        try:
            ssl = int(config()[section][inputCategory]["ssl"])
        except:
            ssl = 0
        try:
            web_root = config()[section][inputCategory]["web_root"]
        except:
            web_root = ""
        try:
            transcode = int(config()["Transcoder"]["transcode"])
        except:
            transcode = 0
        try:
            remoteCPS = int(config()[section][inputCategory]["remoteCPS"])
        except:
            remoteCPS = 0

        nzbName = str(nzbName) # make sure it is a string

        imdbid = self.get_imdb(nzbName, dirName)

        if ssl:
            protocol = "https://"
        else:
            protocol = "http://"
        # don't delay when we are calling this script manually.
        if clientAgent == "manual":
            delay = 0

        baseURL = protocol + host + ":" + port + web_root + "/api/" + apikey + "/"

        movie_id, imdbid, download_id, initial_status, initial_release_status = self.get_movie_info(baseURL, imdbid, download_id) # get the CPS database movie id for this movie.

        process_all_exceptions(nzbName.lower(), dirName)
        nzbName, dirName = convert_to_ascii(nzbName, dirName)

        if status == 0:
            if transcode == 1:
                result = Transcoder().Transcode_directory(dirName)
                if result == 0:
                    Logger.debug("Transcoding succeeded for files in %s", dirName)
                else:
                    Logger.warning("Transcoding failed for files in %s", dirName)

            if method == "manage":
                command = "manage.update"
            else:
                command = "renamer.scan"
                if clientAgent != "manual" and download_id != None:
                    if remoteCPS == 1:
                        command = command + "/?downloader=" + clientAgent + "&download_id=" + download_id
                    else:
                        command = command + "/?media_folder=" + urllib.quote(dirName) + "&downloader=" + clientAgent + "&download_id=" + download_id

            dirSize = getDirectorySize(dirName) # get total directory size to calculate needed processing time.
            TIME_OUT2 = int(TimePerGiB) * dirSize # Couchpotato needs to complete all moving and renaming before returning the status.
            TIME_OUT2 += 60 # Add an extra minute for over-head/processing/metadata.
            socket.setdefaulttimeout(int(TIME_OUT2)) #initialize socket timeout. We may now be able to remove the delays from the wait_for section below? If true, this should exit on first loop.

            url = baseURL + command

            Logger.info("Waiting for %s seconds to allow CPS to process newly extracted files", str(delay))

            time.sleep(delay)

            Logger.debug("Opening URL: %s", url)

            try:
                r = requests.get(url)
            except requests.ConnectionError:
                Logger.exception("Unable to open URL")
                return 1 # failure

            result = r.json()
            Logger.info("CouchPotatoServer returned %s", result)
            if result['success']:
                Logger.info("%s scan started on CouchPotatoServer for %s", method, nzbName)
            else:
                Logger.error("%s scan has NOT started on CouchPotatoServer for %s. Exiting", method, nzbName)
                return 1 # failure

        else:
            Logger.info("Download of %s has failed.", nzbName)
            Logger.info("Trying to re-cue the next highest ranked release")

            if not movie_id:
                Logger.warning("Cound not find a movie in the database for release %s", nzbName)
                Logger.warning("Please manually ignore this release and refresh the wanted movie")
                Logger.error("Exiting autoProcessMovie script")
                return 1 # failure

            url = baseURL + "movie.searcher.try_next/?media_id=" + movie_id

            Logger.debug("Opening URL: %s", url)

            try:
                r = requests.get(url, stream=True)
            except requests.ConnectionError:
                Logger.exception("Unable to open URL")
                return 1  # failure

            for line in r.iter_lines():
                if line: Logger.info("%s", line)
            Logger.info("Movie %s set to try the next best release on CouchPotatoServer", movie_id)
            if delete_failed and not dirName in ['sys.argv[0]','/','']:
                Logger.info("Deleting failed files and folder %s", dirName)
                try:
                    shutil.rmtree(dirName)
                except:
                    Logger.exception("Unable to delete folder %s", dirName)
            return 0 # success

        if clientAgent == "manual":
            return 0 # success
        if not download_id:
            return 1 # just to be sure TorrentToMedia doesn't start deleting files as we havent verified changed status.

        # we will now check to see if CPS has finished renaming before returning to TorrentToMedia and unpausing.
        socket.setdefaulttimeout(int(config.NZBTOMEDIA_TIMEOUT)) #initialize socket timeout.

        release_status = None
        start = datetime.datetime.now()  # set time for timeout
        pause_for = int(wait_for) * 10 # keep this so we only ever have 6 complete loops. This may not be necessary now?
        while (datetime.datetime.now() - start) < datetime.timedelta(minutes=wait_for):  # only wait 2 (default) minutes, then return.
            movie_status, release_status = self.get_status(baseURL, movie_id, download_id) # get the current status fo this movie.
            if movie_status and initial_status and movie_status != initial_status:  # Something has changed. CPS must have processed this movie.
                Logger.info("SUCCESS: This movie is now marked as status %s in CouchPotatoServer", movie_status)
                return 0 # success
            time.sleep(pause_for) # Just stop this looping infinitely and hogging resources for 2 minutes ;)
        else:
            if release_status and initial_release_status and release_status != initial_release_status:  # Something has changed. CPS must have processed this movie.
                Logger.info("SUCCESS: This release is now marked as status %s in CouchPotatoServer", release_status)
                return 0 # success
            else: # The status hasn't changed. we have waited 2 minutes which is more than enough. uTorrent can resule seeding now.
                Logger.warning("The movie does not appear to have changed status after %s minutes. Please check CouchPotato Logs", wait_for)
                return 1 # failure