# -*- coding: utf-8 -*-
from plexapi import utils
from plexapi.base import PlexPartialObject, Playable
from plexapi.exceptions import BadRequest, Unsupported
from plexapi.library import LibrarySection
from plexapi.playqueue import PlayQueue
from plexapi.utils import cast, toDatetime
from plexapi.compat import quote_plus


@utils.registerPlexObject
class Playlist(PlexPartialObject, Playable):
    """ Represents a single Playlist object.
        # TODO: Document attributes
    """
    TAG = 'Playlist'
    TYPE = 'playlist'

    def _loadData(self, data):
        """ Load attribute values from Plex XML response. """
        Playable._loadData(self, data)
        self.addedAt = toDatetime(data.attrib.get('addedAt'))
        self.composite = data.attrib.get('composite')  # url to thumbnail
        self.duration = cast(int, data.attrib.get('duration'))
        self.durationInSeconds = cast(int, data.attrib.get('durationInSeconds'))
        self.guid = data.attrib.get('guid')
        self.key = data.attrib.get('key')
        self.key = self.key.replace('/items', '') if self.key else self.key  # FIX_BUG_50
        self.leafCount = cast(int, data.attrib.get('leafCount'))
        self.playlistType = data.attrib.get('playlistType')
        self.ratingKey = cast(int, data.attrib.get('ratingKey'))
        self.smart = cast(bool, data.attrib.get('smart'))
        self.summary = data.attrib.get('summary')
        self.title = data.attrib.get('title')
        self.type = data.attrib.get('type')
        self.updatedAt = toDatetime(data.attrib.get('updatedAt'))
        self.allowSync = cast(bool, data.attrib.get('allowSync'))
        self._items = None  # cache for self.items

    def __len__(self):  # pragma: no cover
        return len(self.items())

    @property
    def metadataType(self):
        if self.isVideo:
            return 'movie'
        elif self.isAudio:
            return 'track'
        elif self.isPhoto:
            return 'photo'
        else:
            raise Unsupported('Unexpected playlist type')

    @property
    def isVideo(self):
        return self.playlistType == 'video'

    @property
    def isAudio(self):
        return self.playlistType == 'audio'

    @property
    def isPhoto(self):
        return self.playlistType == 'photo'

    def __contains__(self, other):  # pragma: no cover
        return any(i.key == other.key for i in self.items())

    def __getitem__(self, key):  # pragma: no cover
        return self.items()[key]

    def items(self):
        """ Returns a list of all items in the playlist. """
        if self._items is None:
            key = '%s/items' % self.key
            items = self.fetchItems(key)
            self._items = items
        return self._items

    def addItems(self, items):
        """ Add items to a playlist. """
        if not isinstance(items, (list, tuple)):
            items = [items]
        ratingKeys = []
        for item in items:
            if item.listType != self.playlistType:  # pragma: no cover
                raise BadRequest('Can not mix media types when building a playlist: %s and %s' %
                    (self.playlistType, item.listType))
            ratingKeys.append(str(item.ratingKey))
        uuid = items[0].section().uuid
        ratingKeys = ','.join(ratingKeys)
        key = '%s/items%s' % (self.key, utils.joinArgs({
            'uri': 'library://%s/directory//library/metadata/%s' % (uuid, ratingKeys)
        }))
        result = self._server.query(key, method=self._server._session.put)
        self.reload()
        return result

    def removeItem(self, item):
        """ Remove a file from a playlist. """
        key = '%s/items/%s' % (self.key, item.playlistItemID)
        result = self._server.query(key, method=self._server._session.delete)
        self.reload()
        return result

    def moveItem(self, item, after=None):
        """ Move a to a new position in playlist. """
        key = '%s/items/%s/move' % (self.key, item.playlistItemID)
        if after:
            key += '?after=%s' % after.playlistItemID
        result = self._server.query(key, method=self._server._session.put)
        self.reload()
        return result

    def edit(self, title=None, summary=None):
        """ Edit playlist. """
        key = '/library/metadata/%s%s' % (self.ratingKey, utils.joinArgs({'title': title, 'summary': summary}))
        result = self._server.query(key, method=self._server._session.put)
        self.reload()
        return result

    def delete(self):
        """ Delete playlist. """
        return self._server.query(self.key, method=self._server._session.delete)

    def playQueue(self, *args, **kwargs):
        """ Create a playqueue from this playlist. """
        return PlayQueue.create(self._server, self, *args, **kwargs)

    @classmethod
    def _create(cls, server, title, items):
        """ Create a playlist. """
        if items and not isinstance(items, (list, tuple)):
            items = [items]
        ratingKeys = []
        for item in items:
            if item.listType != items[0].listType:  # pragma: no cover
                raise BadRequest('Can not mix media types when building a playlist')
            ratingKeys.append(str(item.ratingKey))
        ratingKeys = ','.join(ratingKeys)
        uuid = items[0].section().uuid
        key = '/playlists%s' % utils.joinArgs({
            'uri': 'library://%s/directory//library/metadata/%s' % (uuid, ratingKeys),
            'type': items[0].listType,
            'title': title,
            'smart': 0
        })
        data = server.query(key, method=server._session.post)[0]
        return cls(server, data, initpath=key)

    @classmethod
    def create(cls, server, title, items=None, section=None, limit=None, smart=False, **kwargs):
        """Create a playlist.

        Parameters:
            server (:class:`~plexapi.server.PlexServer`): Server your connected to.
            title (str): Title of the playlist.
            items (Iterable): Iterable of objects that should be in the playlist.
            section (:class:`~plexapi.library.LibrarySection`, str):
            limit (int): default None.
            smart (bool): default False.

            **kwargs (dict): is passed to the filters. For a example see the search method.

        Returns:
            :class:`plexapi.playlist.Playlist`: an instance of created Playlist.
        """
        if smart:
            return cls._createSmart(server, title, section, limit, **kwargs)

        else:
            return cls._create(server, title, items)

    @classmethod
    def _createSmart(cls, server, title, section, limit=None, **kwargs):
        """ Create a Smart playlist. """

        if not isinstance(section, LibrarySection):
            section = server.library.section(section)

        sectionType = utils.searchType(section.type)
        sectionId = section.key
        uuid = section.uuid
        uri = 'library://%s/directory//library/sections/%s/all?type=%s' % (uuid,
                                                                           sectionId,
                                                                           sectionType)
        if limit:
            uri = uri + '&limit=%s' % str(limit)

        for category, value in kwargs.items():
            sectionChoices = section.listChoices(category)
            for choice in sectionChoices:
                if str(choice.title).lower() == str(value).lower():
                    uri = uri + '&%s=%s' % (category.lower(), str(choice.key))

        uri = uri + '&sourceType=%s' % sectionType
        key = '/playlists%s' % utils.joinArgs({
            'uri': uri,
            'type': section.CONTENT_TYPE,
            'title': title,
            'smart': 1,
        })
        data = server.query(key, method=server._session.post)[0]
        return cls(server, data, initpath=key)

    def copyToUser(self, user):
        """ Copy playlist to another user account. """
        from plexapi.server import PlexServer
        myplex = self._server.myPlexAccount()
        user = myplex.user(user)
        # Get the token for your machine.
        token = user.get_token(self._server.machineIdentifier)
        # Login to your server using your friends credentials.
        user_server = PlexServer(self._server._baseurl, token)
        return self.create(user_server, self.title, self.items())

    def sync(self, videoQuality=None, photoResolution=None, audioBitrate=None, client=None, clientId=None, limit=None,
             unwatched=False, title=None):
        """ Add current playlist as sync item for specified device.
            See :func:`plexapi.myplex.MyPlexAccount.sync()` for possible exceptions.

            Parameters:
                videoQuality (int): idx of quality of the video, one of VIDEO_QUALITY_* values defined in
                                    :mod:`plexapi.sync` module. Used only when playlist contains video.
                photoResolution (str): maximum allowed resolution for synchronized photos, see PHOTO_QUALITY_* values in
                                       the module :mod:`plexapi.sync`. Used only when playlist contains photos.
                audioBitrate (int): maximum bitrate for synchronized music, better use one of MUSIC_BITRATE_* values
                                    from the module :mod:`plexapi.sync`. Used only when playlist contains audio.
                client (:class:`plexapi.myplex.MyPlexDevice`): sync destination, see
                                                               :func:`plexapi.myplex.MyPlexAccount.sync`.
                clientId (str): sync destination, see :func:`plexapi.myplex.MyPlexAccount.sync`.
                limit (int): maximum count of items to sync, unlimited if `None`.
                unwatched (bool): if `True` watched videos wouldn't be synced.
                title (str): descriptive title for the new :class:`plexapi.sync.SyncItem`, if empty the value would be
                             generated from metadata of current photo.

            Raises:
                :class:`plexapi.exceptions.BadRequest`: when playlist is not allowed to sync.
                :class:`plexapi.exceptions.Unsupported`: when playlist content is unsupported.

            Returns:
                :class:`plexapi.sync.SyncItem`: an instance of created syncItem.
        """

        if not self.allowSync:
            raise BadRequest('The playlist is not allowed to sync')

        from plexapi.sync import SyncItem, Policy, MediaSettings

        myplex = self._server.myPlexAccount()
        sync_item = SyncItem(self._server, None)
        sync_item.title = title if title else self.title
        sync_item.rootTitle = self.title
        sync_item.contentType = self.playlistType
        sync_item.metadataType = self.metadataType
        sync_item.machineIdentifier = self._server.machineIdentifier

        sync_item.location = 'playlist:///%s' % quote_plus(self.guid)
        sync_item.policy = Policy.create(limit, unwatched)

        if self.isVideo:
            sync_item.mediaSettings = MediaSettings.createVideo(videoQuality)
        elif self.isAudio:
            sync_item.mediaSettings = MediaSettings.createMusic(audioBitrate)
        elif self.isPhoto:
            sync_item.mediaSettings = MediaSettings.createPhoto(photoResolution)
        else:
            raise Unsupported('Unsupported playlist content')

        return myplex.sync(sync_item, client=client, clientId=clientId)

    def posters(self):
        """ Returns list of available poster objects. :class:`~plexapi.media.Poster`. """

        return self.fetchItems('/library/metadata/%s/posters' % self.ratingKey)

    def uploadPoster(self, url=None, filepath=None):
        """ Upload poster from url or filepath. :class:`~plexapi.media.Poster` to :class:`~plexapi.video.Video`. """
        if url:
            key = '/library/metadata/%s/posters?url=%s' % (self.ratingKey, quote_plus(url))
            self._server.query(key, method=self._server._session.post)
        elif filepath:
            key = '/library/metadata/%s/posters?' % self.ratingKey
            data = open(filepath, 'rb').read()
            self._server.query(key, method=self._server._session.post, data=data)

    def setPoster(self, poster):
        """ Set . :class:`~plexapi.media.Poster` to :class:`~plexapi.video.Video` """
        poster.select()

    def arts(self):
        """ Returns list of available art objects. :class:`~plexapi.media.Poster`. """

        return self.fetchItems('/library/metadata/%s/arts' % self.ratingKey)

    def uploadArt(self, url=None, filepath=None):
        """ Upload art from url or filepath. :class:`~plexapi.media.Poster` to :class:`~plexapi.video.Video`. """
        if url:
            key = '/library/metadata/%s/arts?url=%s' % (self.ratingKey, quote_plus(url))
            self._server.query(key, method=self._server._session.post)
        elif filepath:
            key = '/library/metadata/%s/arts?' % self.ratingKey
            data = open(filepath, 'rb').read()
            self._server.query(key, method=self._server._session.post, data=data)

    def setArt(self, art):
        """ Set :class:`~plexapi.media.Poster` to :class:`~plexapi.video.Video` """
        art.select()