"""
From a list of TV shows, check if users in a list has watched shows episodes.
If all users in list have watched an episode of listed show, then delete episode.

Add deletion via Plex.
"""

import requests
import sys
import os


## EDIT THESE SETTINGS ##
TAUTULLI_APIKEY = 'xxxxx'  # Your Tautulli API key
TAUTULLI_URL = 'http://localhost:8181/'  # Your Tautulli URL
SHOW_LST = [123456, 123456, 123456, 123456]  # Show rating keys.
USER_LST = ['Sam', 'Jakie', 'Blacktwin']  # Name of users


class METAINFO(object):
    def __init__(self, data=None):
        d = data or {}
        self.title = d['title']
        self.file = d['file']
        self.media_type = d['media_type']
        self.grandparent_title = d['grandparent_title']


def get_metadata(rating_key):
    # Get the metadata for a media item.
    payload = {'apikey': TAUTULLI_APIKEY,
               'rating_key': rating_key,
               'cmd': 'get_metadata',
               'media_info': True}

    try:
        r = requests.get(TAUTULLI_URL.rstrip('/') + '/api/v2', params=payload)
        response = r.json()

        res_data = response['response']['data']['metadata']
        return METAINFO(data=res_data)

    except Exception as e:
        sys.stderr.write("Tautulli API 'get_metadata' request failed: {0}.".format(e))
        pass


def get_history(user, show, start, length):
    # Get the Tautulli history.
    payload = {'apikey': TAUTULLI_APIKEY,
               'cmd': 'get_history',
               'user': user,
               'grandparent_rating_key': show,
               'start': start,
               'length': length}

    try:
        r = requests.get(TAUTULLI_URL.rstrip('/') + '/api/v2', params=payload)
        response = r.json()

        res_data = response['response']['data']['data']
        return [d['rating_key'] for d in res_data if d['watched_status'] == 1]

    except Exception as e:
        sys.stderr.write("Tautulli API 'get_history' request failed: {0}.".format(e))


meta_dict = {}
meta_lst = []
delete_lst = []

count = 25
for user in USER_LST:
    for show in SHOW_LST:
        start = 0
        while True:
            # Getting all watched history for listed users and shows
            history = get_history(user, show, start, count)
            try:
                if all([history]):
                    start += count
                    for rating_key in history:
                        # Getting metadata of what was watched
                        meta = get_metadata(rating_key)
                        if not any(d['title'] == meta.title for d in meta_lst):
                            meta_dict = {
                                'title': meta.title,
                                'file': meta.file,
                                'type': meta.media_type,
                                'grandparent_title': meta.grandparent_title,
                                'watched_by': [user]
                            }
                            meta_lst.append(meta_dict)
                        else:
                            for d in meta_lst:
                                if d['title'] == meta.title:
                                    d['watched_by'].append(user)
                    continue
                elif not all([history]):
                    break

                start += count
            except Exception as e:
                print(e)
                pass


for meta_dict in meta_lst:
    print("{} {} has been watched by {}".format(meta_dict['grandparent_title'].encode('UTF-8'),
                                                meta_dict['title'].encode('UTF-8'),
                                                 " & ".join(USER_LST)))
    print("Removing {}".format(meta_dict['file']))
    os.remove(meta_dict['file'])