# -*- coding: utf-8 -*-
from __future__ import division, absolute_import, print_function, unicode_literals

import json

import requests
from six import ensure_str

from ..helper.utils import settings
from ..helper import LazyLogger


LOG = LazyLogger(__name__)


def jellyfin_url(client, handler):
    return "%s/%s" % (client.config.data['auth.server'], handler)


def basic_info():
    return "Etag"


def info():
    return (
        "Path,Genres,SortName,Studios,Writer,Taglines,LocalTrailerCount,"
        "OfficialRating,CumulativeRunTimeTicks,ItemCounts,"
        "Metascore,AirTime,DateCreated,People,Overview,"
        "Etag,ShortOverview,ProductionLocations,"
        "Tags,ProviderIds,ParentId,RemoteTrailers,SpecialEpisodeNumbers,"
        "MediaSources,VoteCount,RecursiveItemCount,PrimaryImageAspectRatio"
    )


def music_info():
    return (
        "Etag,Genres,SortName,Studios,Writer,"
        "OfficialRating,CumulativeRunTimeTicks,Metascore,"
        "AirTime,DateCreated,MediaStreams,People,ProviderIds,Overview,ItemCounts"
    )


class API(object):

    ''' All the api calls to the server.
    '''
    def __init__(self, client, *args, **kwargs):
        self.client = client
        self.config = client.config
        self.default_timeout = 5

    def _http(self, action, url, request=None):
        if request is None:
            request = {}

        request.update({'type': action, 'handler': url})

        return self.client.request(request)

    def _get(self, handler, params=None):
        return self._http("GET", handler, {'params': params})

    def _post(self, handler, json=None, params=None):
        return self._http("POST", handler, {'params': params, 'json': json})

    def _delete(self, handler, params=None):
        return self._http("DELETE", handler, {'params': params})

    #################################################################################################

    # Bigger section of the Jellyfin api

    #################################################################################################

    def try_server(self):
        return self._get("System/Info/Public")

    def sessions(self, handler="", action="GET", params=None, json=None):
        if action == "POST":
            return self._post("Sessions%s" % handler, json, params)
        elif action == "DELETE":
            return self._delete("Sessions%s" % handler, params)
        else:
            return self._get("Sessions%s" % handler, params)

    def users(self, handler="", action="GET", params=None, json=None):
        if action == "POST":
            return self._post("Users/{UserId}%s" % handler, json, params)
        elif action == "DELETE":
            return self._delete("Users/{UserId}%s" % handler, params)
        else:
            return self._get("Users/{UserId}%s" % handler, params)

    def items(self, handler="", action="GET", params=None, json=None):
        if action == "POST":
            return self._post("Items%s" % handler, json, params)
        elif action == "DELETE":
            return self._delete("Items%s" % handler, params)
        else:
            return self._get("Items%s" % handler, params)

    def user_items(self, handler="", params=None):
        return self.users("/Items%s" % handler, params=params)

    def shows(self, handler, params):
        return self._get("Shows%s" % handler, params)

    def videos(self, handler):
        return self._get("Videos%s" % handler)

    def artwork(self, item_id, art, max_width, ext="jpg", index=None):
        if index is None:
            return jellyfin_url(self.client, "Items/%s/Images/%s?MaxWidth=%s&format=%s" % (item_id, art, max_width, ext))

        return jellyfin_url(self.client, "Items/%s/Images/%s/%s?MaxWidth=%s&format=%s" % (item_id, art, index, max_width, ext))

    #################################################################################################

    # More granular api

    #################################################################################################

    def get_users(self):
        return self._get("Users")

    def get_public_users(self):
        return self._get("Users/Public")

    def get_user(self, user_id=None):
        return self.users() if user_id is None else self._get("Users/%s" % user_id)

    def get_views(self):
        return self.users("/Views")

    def get_media_folders(self):
        return self.users("/Items")

    def get_item(self, item_id):
        return self.users("/Items/%s" % item_id)

    def get_items(self, item_ids):
        return self.users("/Items", params={
            'Ids': ','.join(str(x) for x in item_ids),
            'Fields': info()
        })

    def get_sessions(self):
        return self.sessions(params={'ControllableByUserId': "{UserId}"})

    def get_device(self, device_id):
        return self.sessions(params={'DeviceId': device_id})

    def post_session(self, session_id, url, params=None, data=None):
        return self.sessions("/%s/%s" % (session_id, url), "POST", params, data)

    def get_images(self, item_id):
        return self.items("/%s/Images" % item_id)

    def get_suggestion(self, media="Movie,Episode", limit=1):
        return self.users("/Suggestions", params={
            'Type': media,
            'Limit': limit
        })

    def get_recently_added(self, media=None, parent_id=None, limit=20):
        return self.user_items("/Latest", {
            'Limit': limit,
            'UserId': "{UserId}",
            'IncludeItemTypes': media,
            'ParentId': parent_id,
            'Fields': info()
        })

    def get_next(self, index=None, limit=1):
        return self.shows("/NextUp", {
            'Limit': limit,
            'UserId': "{UserId}",
            'StartIndex': None if index is None else int(index)
        })

    def get_adjacent_episodes(self, show_id, item_id):
        return self.shows("/%s/Episodes" % show_id, {
            'UserId': "{UserId}",
            'AdjacentTo': item_id,
            'Fields': "Overview"
        })

    def get_genres(self, parent_id=None):
        return self._get("Genres", {
            'ParentId': parent_id,
            'UserId': "{UserId}",
            'Fields': info()
        })

    def get_recommendation(self, parent_id=None, limit=20):
        return self._get("Movies/Recommendations", {
            'ParentId': parent_id,
            'UserId': "{UserId}",
            'Fields': info(),
            'Limit': limit
        })

    def get_items_by_letter(self, parent_id=None, media=None, letter=None):
        return self.user_items(params={
            'ParentId': parent_id,
            'NameStartsWith': letter,
            'Fields': info(),
            'Recursive': True,
            'IncludeItemTypes': media
        })

    def get_channels(self):
        return self._get("LiveTv/Channels", {
            'UserId': "{UserId}",
            'EnableImages': True,
            'EnableUserData': True
        })

    def get_intros(self, item_id):
        return self.user_items("/%s/Intros" % item_id)

    def get_additional_parts(self, item_id):
        return self.videos("/%s/AdditionalParts" % item_id)

    def delete_item(self, item_id):
        return self.items("/%s" % item_id, "DELETE")

    def get_local_trailers(self, item_id):
        return self.user_items("/%s/LocalTrailers" % item_id)

    def get_transcode_settings(self):
        return self._get('System/Configuration/encoding')

    def get_ancestors(self, item_id):
        return self.items("/%s/Ancestors" % item_id, params={
            'UserId': "{UserId}"
        })

    def get_items_theme_video(self, parent_id):
        return self.users("/Items", params={
            'HasThemeVideo': True,
            'ParentId': parent_id
        })

    def get_themes(self, item_id):
        return self.items("/%s/ThemeMedia" % item_id, params={
            'UserId': "{UserId}",
            'InheritFromParent': True
        })

    def get_items_theme_song(self, parent_id):
        return self.users("/Items", params={
            'HasThemeSong': True,
            'ParentId': parent_id
        })

    def get_plugins(self):
        return self._get("Plugins")

    def check_companion_installed(self):
        try:
            self._get("Jellyfin.Plugin.KodiSyncQueue/GetServerDateTime")
            return True
        except Exception:
            return False

    def get_seasons(self, show_id):
        return self.shows("/%s/Seasons" % show_id, params={
            'UserId': "{UserId}",
            'EnableImages': True,
            'Fields': info()
        })

    def get_date_modified(self, date, parent_id, media=None):
        return self.users("/Items", params={
            'ParentId': parent_id,
            'Recursive': False,
            'IsMissing': False,
            'IsVirtualUnaired': False,
            'IncludeItemTypes': media or None,
            'MinDateLastSaved': date,
            'Fields': info()
        })

    def get_userdata_date_modified(self, date, parent_id, media=None):
        return self.users("/Items", params={
            'ParentId': parent_id,
            'Recursive': True,
            'IsMissing': False,
            'IsVirtualUnaired': False,
            'IncludeItemTypes': media or None,
            'MinDateLastSavedForUser': date,
            'Fields': info()
        })

    def refresh_item(self, item_id):
        return self.items("/%s/Refresh" % item_id, "POST", json={
            'Recursive': True,
            'ImageRefreshMode': "FullRefresh",
            'MetadataRefreshMode': "FullRefresh",
            'ReplaceAllImages': False,
            'ReplaceAllMetadata': True
        })

    def favorite(self, item_id, option=True):
        return self.users("/FavoriteItems/%s" % item_id, "POST" if option else "DELETE")

    def get_system_info(self):
        return self._get("System/Configuration")

    def post_capabilities(self, data):
        return self.sessions("/Capabilities/Full", "POST", json=data)

    def session_add_user(self, session_id, user_id, option=True):
        return self.sessions("/%s/Users/%s" % (session_id, user_id), "POST" if option else "DELETE")

    def session_playing(self, data):
        return self.sessions("/Playing", "POST", json=data)

    def session_progress(self, data):
        return self.sessions("/Playing/Progress", "POST", json=data)

    def session_stop(self, data):
        return self.sessions("/Playing/Stopped", "POST", json=data)

    def item_played(self, item_id, watched):
        return self.users("/PlayedItems/%s" % item_id, "POST" if watched else "DELETE")

    def get_sync_queue(self, date, filters=None):
        return self._get("Jellyfin.Plugin.KodiSyncQueue/{UserId}/GetItems", params={
            'LastUpdateDT': date,
            'filter': filters or 'None'
        })

    def get_server_time(self):
        return self._get("Jellyfin.Plugin.KodiSyncQueue/GetServerDateTime")

    def get_play_info(self, item_id, profile):
        return self.items("/%s/PlaybackInfo" % item_id, "POST", json={
            'UserId': "{UserId}",
            'DeviceProfile': profile,
            'AutoOpenLiveStream': True
        })

    def get_live_stream(self, item_id, play_id, token, profile):
        return self._post("LiveStreams/Open", json={
            'UserId': "{UserId}",
            'DeviceProfile': profile,
            'OpenToken': token,
            'PlaySessionId': play_id,
            'ItemId': item_id
        })

    def close_live_stream(self, live_id):
        return self._post("LiveStreams/Close", json={
            'LiveStreamId': live_id
        })

    def close_transcode(self, device_id, play_id):
        return self._delete("Videos/ActiveEncodings", params={
            'DeviceId': device_id,
            'PlaySessionId': play_id
        })

    def get_default_headers(self):
        auth = "MediaBrowser "
        auth += "Client=%s, " % self.config.data['app.name']
        auth += "Device=%s, " % self.config.data['app.device_name']
        auth += "DeviceId=%s, " % self.config.data['app.device_id']
        auth += "Version=%s" % self.config.data['app.version']

        return {
            "Accept": "application/json",
            "Content-type": "application/x-www-form-urlencoded; charset=UTF-8",
            "X-Application": "%s/%s" % (self.config.data['app.name'], self.config.data['app.version']),
            "Accept-Charset": "UTF-8,*",
            "Accept-encoding": "gzip",
            "User-Agent": self.config.data['http.user_agent'] or "%s/%s" % (self.config.data['app.name'], self.config.data['app.version']),
            "x-emby-authorization": ensure_str(auth, 'utf-8')
        }

    def send_request(self, url, path, method="get", timeout=None, headers=None, data=None):
        request_method = getattr(requests, method.lower())
        url = "%s/%s" % (url, path)
        request_settings = {
            "timeout": timeout or self.default_timeout,
            "headers": headers or self.get_default_headers(),
            "data": data
        }

        request_settings["verify"] = settings('sslverify.bool')

        LOG.info("Sending %s request to %s" % (method, path))
        LOG.debug(request_settings['timeout'])
        LOG.debug(request_settings['headers'])

        return request_method(url, **request_settings)

    def login(self, server_url, username, password=""):
        path = "Users/AuthenticateByName"
        auth_data = {
                    "username": username,
                    "Pw": password
                }

        headers = self.get_default_headers()
        headers.update({'Content-type': "application/json"})

        try:
            LOG.info("Trying to login to %s/%s as %s" % (server_url, path, username))
            response = self.send_request(server_url, path, method="post", headers=headers, data=json.dumps(auth_data))

            if response.status_code == 200:
                return response.json()
            else:
                LOG.error("Failed to login to server with status code: " + str(response.status_code))
                LOG.error("Server Response:\n" + str(response.content))
                LOG.debug(headers)

                return {}
        except Exception as e:  # Find exceptions for likely cases i.e, server timeout, etc
            LOG.error(e)

        return {}

    def validate_authentication_token(self, server):
        auth_token_header = {
                    'X-MediaBrowser-Token': server['AccessToken']
                }
        headers = self.get_default_headers()
        headers.update(auth_token_header)

        response = self.send_request(server['address'], "system/info", headers=headers)

        if response.status_code == 200:
            return response.json()
        else:
            return {'Status_Code': response.status_code}

    def get_public_info(self, server_address):
        response = self.send_request(server_address, "system/info/public")
        try:
            return response.json() if response.status_code == 200 else {}
        except json.JSONDecodeError as e:
            LOG.error("Failed to get server public info. JSON error: %s" % e)
            LOG.error(response.content)
            return {}

    def check_redirect(self, server_address):
        ''' Checks if the server is redirecting traffic to a new URL and
        returns the URL the server prefers to use
        '''
        response = self.send_request(server_address, "system/info/public")
        return response.url.replace('/system/info/public', '')