Table.map_items() - Code Metrics - fuzeman/Plex-Trakt-Scrobbler - Measure and Improve Code Quality continuously with Scrutinizer

Table.map_items() F
last analyzed 2018-03-05 01:11 UTC

↳ Parent: Table

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	1
CRAP Score	394.9805

Importance

Changes

Metric	Value
dl	0
loc	79
ccs	1
cts	47
cp	0.0213
rs	2.221
c	0
b	0
f	0
cc	20
crap	394.9805

How to fix Long Method Complexity

from plugin.core.helpers.variable import try_convert
from plugin.core.backup import BackupManager
from plugin.core.constants import GUID_SERVICES
from plugin.core.database.manager import DatabaseManager
from plugin.core.exceptions import AccountAuthenticationError

from plex.objects.library import metadata as plex_objects
from stash import ApswArchive
from trakt import objects as trakt_objects
from trakt_sync.cache.backends import StashBackend
from trakt_sync.cache.main import Cache
import elapsed
import logging
import os

IGNORED_DATA = [
    Cache.Data.get(Cache.Data.Liked),
    Cache.Data.get(Cache.Data.Personal)
]

log = logging.getLogger(__name__)


class SyncStateTrakt(object):
    def __init__(self, state):
        self.state = state
        self.task = state.task

        self.cache = None

        self.changes = None
        self.table = Table(self.task)

    def load(self):
        # Construct cache
        self.cache = self._build_cache()

        # Load table handler
        self.table.load()

    def _build_cache(self):
        def storage(name):
            return StashBackend(
                ApswArchive(DatabaseManager.cache('trakt'), name),
                'lru:///?capacity=500&compact_threshold=1500',
                'pickle:///?protocol=2'
            )

        cache = Cache(self.task.media, self.task.data, storage)

        # Bind to cache events
        cache.events.on([
            'refresh.sync.progress',
            'refresh.list.progress'
        ], self.on_refresh_progress)

        return cache

    def on_refresh_progress(self, source, current):

        # Step refresh progress for `source`
        self.task.progress.group(SyncStateTrakt, 'refresh:%s' % source).step()

    def __getitem__(self, key):
        collection = [
            self.task.account.trakt.username,
            Cache.Media.get(key[0]),
            Cache.Data.get(key[1])
        ]

        if len(key) > 2:
            # Include extra parameters (list id)
            collection.extend(key[2:])

        return self.cache[collection]

    def invalidate(self, *key):
        """Invalidate collection in trakt cache"""
        username = self.task.account.trakt.username

        # Invalidate collection
        self.cache.invalidate([username] + list(key))

        log.debug('Invalidated trakt cache %r for account: %r', key, username)

    @elapsed.clock
    def refresh(self):
        account = self.task.account

        if not account.trakt or not account.trakt.username:
            raise AccountAuthenticationError("Trakt account hasn't been authenticated")

        # Task checkpoint
        self.task.checkpoint()

        # Construct progress groups
        def setup_progress_group(source):
            # Retrieve steps from cache source
            steps = self.cache.source(source).steps()

            # Setup progress group with total steps
            self.task.progress.group(SyncStateTrakt, 'refresh:%s' % source).add(steps)

        setup_progress_group('list')
        setup_progress_group('sync')

        # Refresh cache for account, store changes
        self.changes = self.cache.refresh(account.trakt.username)

        # Resolve changes
        self.changes = list(self.changes)

        # Reset current table
        self.table.reset()

    @elapsed.clock
    def build_table(self):
        # Build table from cache
        self.table.build(self.cache)

    @elapsed.clock
    def flush(self):
        with elapsed.clock(SyncStateTrakt, 'flush:collections'):
            # Flush trakt collections to disk
            self.cache.collections.flush()

        with elapsed.clock(SyncStateTrakt, 'flush:stores'):
            # Flush trakt stores to disk
            for key, store in self.cache.stores.items():
                log.debug('[%-38s] Flushing collection...', '/'.join(key))

                store.flush()

        # Store backup of trakt data
        group = os.path.join('trakt', str(self.task.account.id))

        BackupManager.database.backup(group, DatabaseManager.cache('trakt'), self.task.id, {
            'account': {
                'id': self.task.account.id,
                'name': self.task.account.name,

                'trakt': {
                    'username': self.task.account.trakt.username
                }
            }
        })


class Table(object):
    def __init__(self, task):
        self.task = task

        self.movies = None
        self.shows = None

        self.movie_keys = None
        self.show_keys = None
        self.episode_keys = None

        self._data = None
        self._media = None

    def load(self):
        # Parse data/media enums into lists
        self._data = [
            Cache.Data.get(d)
            for d in Cache.Data.parse(self.task.data)
        ]

        self._media = [
            Cache.Media.get(m)
            for m in Cache.Media.parse(self.task.media)
        ]

    def reset(self):
        self.movies = None
        self.shows = None

        self.movie_keys = None
        self.show_keys = None
        self.episode_keys = None

    def build(self, cache):
        # Map item `keys` into tables
        self.movies = {}
        self.shows = {}

        self.movie_keys = set()
        self.show_keys = set()
        self.episode_keys = {}

        log.debug('Building tables...')

        log.debug(' - Data: %s', ', '.join([
            '/'.join(x) if type(x) is tuple else x
            for x in self._data
        ]))

        log.debug(' - Media: %s', ', '.join([
            '/'.join(x) if type(x) is tuple else x
            for x in self._media
        ]))

        # Construct progress group
        self.task.progress.group(Table, 'build').add(len(cache.collections))

        # Map each item in cache collections
        for key in cache.collections:
            # Increment one step
            self.task.progress.group(Table, 'build').step()

            # Parse `key`
            if len(key) == 3:
                # Sync
                username, media, data = key
            elif len(key) == 4:
                # Lists
                username, media, data = tuple(key[0:3])
            else:
                log.warn('Unknown key: %r', key)
                continue

            if username != self.task.account.trakt.username:
                # Collection isn't for the current account
                continue

            if media and media not in self._media:
                log.debug('[%-38s] Media %r has not been enabled', '/'.join(key), media)
                continue

            if data not in self._data:
                log.debug('[%-38s] Data %r has not been enabled', '/'.join(key), data)
                continue

            # Map store items
            if data not in IGNORED_DATA:
                self.map_items(key, cache[key], media)

        log.debug(
            'Built tables with %d keys (movies: %d, shows: %d, episodes: %d)',
            len(self.movies) + len(self.shows),
            len(self.movie_keys),
            len(self.show_keys),
            len(self.episode_keys)
        )

    def map_items(self, key, store, media=None):
        # Retrieve key map
        if media is not None:
            keys = self.keys(media)
            table = self.table(media)

            if keys is None or table is None:
                log.debug('[%-38s] Collection has been ignored (unknown/unsupported media)', '/'.join(key))
                return
        else:
            keys = None
            table = None

        # Map each item in store
        log.debug('[%-38s] Building table from collection...', '/'.join(key))

        for pk, item in store.iteritems():
            # Trim `pk` season/episode values
            if len(pk) > 2:
                pk = tuple(pk[:2])

            if pk[0] not in GUID_SERVICES:
                log.info('Ignoring item %r with an unknown primary agent: %r', item, pk)
                continue

            # Detect media type from `item`
            if media is not None:
                i_media = media
                i_keys = keys
                i_table = table
            else:
                i_media = self.media(item)
                i_keys = self.keys(i_media)
                i_table = self.table(i_media)

            # Store `pk` in `keys
            if i_keys is not None:
                i_keys.add(pk)

            # Map `item.keys` -> `pk`
            for key in item.keys:
                # Expand `key`
                if type(key) is not tuple or len(key) != 2:
                    continue

                service, id = key


                # Check if agent is supported
                if service not in GUID_SERVICES:
                    continue

                # Cast service id to integer
                if service in ['tvdb', 'tmdb', 'tvrage']:
                    id = try_convert(id, int, id)

                # Store key in table
                key = (service, id)

                if key in i_table:
                    continue

                i_table[key] = pk

            # Map episodes in show
            if i_media == 'episodes':
                if type(item) is trakt_objects.Show:
                    if pk not in self.episode_keys:
                        self.episode_keys[pk] = set()

                    for identifier, _ in item.episodes():
                        self.episode_keys[pk].add(identifier)
                elif type(item) is trakt_objects.Episode:
                    # TODO
                    pass
                else:
                    log.debug('Unknown episode item: %r', item)

        # Task checkpoint
        self.task.checkpoint()

    def keys(self, media):
        if type(media) is not str:
            media = self.media(media)

        if media == 'movies':
            return self.movie_keys

        if media in ['shows', 'seasons', 'episodes']:
            return self.show_keys

        log.warn('Unknown media: %r', media)
        return None

    @staticmethod
    def media(item):
        if type(item) is not type:
            i_type = type(item)
        else:
            i_type = item

        if issubclass(i_type, (trakt_objects.Movie, plex_objects.Movie)):
            return 'movies'

        if issubclass(i_type, (trakt_objects.Show, plex_objects.Show)):
            return 'shows'

        if issubclass(i_type, (trakt_objects.Season, plex_objects.Season)):
            return 'seasons'

        if issubclass(i_type, (trakt_objects.Episode, plex_objects.Episode)):
            return 'episodes'

        log.warn('Unknown item type: %r', i_type)
        return None

    def table(self, media):
        if type(media) is not str:
            media = self.media(media)

        if media == 'movies':
            return self.movies

        if media in ['shows', 'seasons', 'episodes']:
            return self.shows

        log.warn('Unknown media: %r', media)
        return None

    def __call__(self, media):
        return self.table(media)


1	1	from plugin.core.helpers.variable import try_convert
2	1	from plugin.core.backup import BackupManager
3	1	from plugin.core.constants import GUID_SERVICES
4	1	from plugin.core.database.manager import DatabaseManager
5	1	from plugin.core.exceptions import AccountAuthenticationError
6
7	1	from plex.objects.library import metadata as plex_objects
8	1	from stash import ApswArchive
9	1	from trakt import objects as trakt_objects
10	1	from trakt_sync.cache.backends import StashBackend
11	1	from trakt_sync.cache.main import Cache
12	1	import elapsed
13	1	import logging
14	1	import os
15
16	1	IGNORED_DATA = [
17		Cache.Data.get(Cache.Data.Liked),
18		Cache.Data.get(Cache.Data.Personal)
19		]
20
21	1	log = logging.getLogger(__name__)
22
23
24	1	class SyncStateTrakt(object):
25	1	def __init__(self, state):
26	1	self.state = state
27	1	self.task = state.task
28
29	1	self.cache = None
30
31	1	self.changes = None
32	1	self.table = Table(self.task)
33
34	1	def load(self):
35		# Construct cache
36		self.cache = self._build_cache()
37
38		# Load table handler
39		self.table.load()
40
41	1	def _build_cache(self):
42		def storage(name):
43		return StashBackend(
44		ApswArchive(DatabaseManager.cache('trakt'), name),
45		'lru:///?capacity=500&compact_threshold=1500',
46		'pickle:///?protocol=2'
47		)
48
49		cache = Cache(self.task.media, self.task.data, storage)
50
51		# Bind to cache events
52		cache.events.on([
53		'refresh.sync.progress',
54		'refresh.list.progress'
55		], self.on_refresh_progress)
56
57		return cache
58
59	1	def on_refresh_progress(self, source, current):
		0 ignored issues – show Unused Code introduced 2016-01-17 02:06 UTC by Report Bug Copy Issue Report The argument `current` seems to be unused. Loading history...
60		# Step refresh progress for `source`
61		self.task.progress.group(SyncStateTrakt, 'refresh:%s' % source).step()
62
63	1	def __getitem__(self, key):
64		collection = [
65		self.task.account.trakt.username,
66		Cache.Media.get(key[0]),
67		Cache.Data.get(key[1])
68		]
69
70		if len(key) > 2:
71		# Include extra parameters (list id)
72		collection.extend(key[2:])
73
74		return self.cache[collection]
75
76	1	def invalidate(self, *key):
77		"""Invalidate collection in trakt cache"""
78		username = self.task.account.trakt.username
79
80		# Invalidate collection
81		self.cache.invalidate([username] + list(key))
82
83		log.debug('Invalidated trakt cache %r for account: %r', key, username)
84
85	1	@elapsed.clock
86		def refresh(self):
87		account = self.task.account
88
89		if not account.trakt or not account.trakt.username:
90		raise AccountAuthenticationError("Trakt account hasn't been authenticated")
91
92		# Task checkpoint
93		self.task.checkpoint()
94
95		# Construct progress groups
96		def setup_progress_group(source):
97		# Retrieve steps from cache source
98		steps = self.cache.source(source).steps()
99
100		# Setup progress group with total steps
101		self.task.progress.group(SyncStateTrakt, 'refresh:%s' % source).add(steps)
102
103		setup_progress_group('list')
104		setup_progress_group('sync')
105
106		# Refresh cache for account, store changes
107		self.changes = self.cache.refresh(account.trakt.username)
108
109		# Resolve changes
110		self.changes = list(self.changes)
111
112		# Reset current table
113		self.table.reset()
114
115	1	@elapsed.clock
116		def build_table(self):
117		# Build table from cache
118		self.table.build(self.cache)
119
120	1	@elapsed.clock
121		def flush(self):
122		with elapsed.clock(SyncStateTrakt, 'flush:collections'):
123		# Flush trakt collections to disk
124		self.cache.collections.flush()
125
126		with elapsed.clock(SyncStateTrakt, 'flush:stores'):
127		# Flush trakt stores to disk
128		for key, store in self.cache.stores.items():
129		log.debug('[%-38s] Flushing collection...', '/'.join(key))
130
131		store.flush()
132
133		# Store backup of trakt data
134		group = os.path.join('trakt', str(self.task.account.id))
135
136		BackupManager.database.backup(group, DatabaseManager.cache('trakt'), self.task.id, {
137		'account': {
138		'id': self.task.account.id,
139		'name': self.task.account.name,
140
141		'trakt': {
142		'username': self.task.account.trakt.username
143		}
144		}
145		})
146
147
148	1	class Table(object):
149	1	def __init__(self, task):
150	1	self.task = task
151
152	1	self.movies = None
153	1	self.shows = None
154
155	1	self.movie_keys = None
156	1	self.show_keys = None
157	1	self.episode_keys = None
158
159	1	self._data = None
160	1	self._media = None
161
162	1	def load(self):
163		# Parse data/media enums into lists
164		self._data = [
165		Cache.Data.get(d)
166		for d in Cache.Data.parse(self.task.data)
167		]
168
169		self._media = [
170		Cache.Media.get(m)
171		for m in Cache.Media.parse(self.task.media)
172		]
173
174	1	def reset(self):
175		self.movies = None
176		self.shows = None
177
178		self.movie_keys = None
179		self.show_keys = None
180		self.episode_keys = None
181
182	1	def build(self, cache):
183		# Map item `keys` into tables
184		self.movies = {}
185		self.shows = {}
186
187		self.movie_keys = set()
188		self.show_keys = set()
189		self.episode_keys = {}
190
191		log.debug('Building tables...')
192
193		log.debug(' - Data: %s', ', '.join([
194		'/'.join(x) if type(x) is tuple else x
195		for x in self._data
196		]))
197
198		log.debug(' - Media: %s', ', '.join([
199		'/'.join(x) if type(x) is tuple else x
200		for x in self._media
201		]))
202
203		# Construct progress group
204		self.task.progress.group(Table, 'build').add(len(cache.collections))
205
206		# Map each item in cache collections
207		for key in cache.collections:
208		# Increment one step
209		self.task.progress.group(Table, 'build').step()
210
211		# Parse `key`
212		if len(key) == 3:
213		# Sync
214		username, media, data = key
215		elif len(key) == 4:
216		# Lists
217		username, media, data = tuple(key[0:3])
218		else:
219		log.warn('Unknown key: %r', key)
220		continue
221
222		if username != self.task.account.trakt.username:
223		# Collection isn't for the current account
224		continue
225
226		if media and media not in self._media:
227		log.debug('[%-38s] Media %r has not been enabled', '/'.join(key), media)
228		continue
229
230		if data not in self._data:
231		log.debug('[%-38s] Data %r has not been enabled', '/'.join(key), data)
232		continue
233
234		# Map store items
235		if data not in IGNORED_DATA:
236		self.map_items(key, cache[key], media)
237
238		log.debug(
239		'Built tables with %d keys (movies: %d, shows: %d, episodes: %d)',
240		len(self.movies) + len(self.shows),
241		len(self.movie_keys),
242		len(self.show_keys),
243		len(self.episode_keys)
244		)
245
246	1	def map_items(self, key, store, media=None):
247		# Retrieve key map
248		if media is not None:
249		keys = self.keys(media)
250		table = self.table(media)
251
252		if keys is None or table is None:
253		log.debug('[%-38s] Collection has been ignored (unknown/unsupported media)', '/'.join(key))
254		return
255		else:
256		keys = None
257		table = None
258
259		# Map each item in store
260		log.debug('[%-38s] Building table from collection...', '/'.join(key))
261
262		for pk, item in store.iteritems():
263		# Trim `pk` season/episode values
264		if len(pk) > 2:
265		pk = tuple(pk[:2])
266
267		if pk[0] not in GUID_SERVICES:
268		log.info('Ignoring item %r with an unknown primary agent: %r', item, pk)
269		continue
270
271		# Detect media type from `item`
272		if media is not None:
273		i_media = media
274		i_keys = keys
275		i_table = table
276		else:
277		i_media = self.media(item)
278		i_keys = self.keys(i_media)
279		i_table = self.table(i_media)
280
281		# Store `pk` in `keys
282		if i_keys is not None:
283		i_keys.add(pk)
284
285		# Map `item.keys` -> `pk`
286		for key in item.keys:
287		# Expand `key`
288		if type(key) is not tuple or len(key) != 2:
289		continue
290
291		service, id = key
		0 ignored issues – show Bug Best Practice introduced 2016-02-22 12:41 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `id`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
292
293		# Check if agent is supported
294		if service not in GUID_SERVICES:
295		continue
296
297		# Cast service id to integer
298		if service in ['tvdb', 'tmdb', 'tvrage']:
299		id = try_convert(id, int, id)
300
301		# Store key in table
302		key = (service, id)
303
304		if key in i_table:
305		continue
306
307		i_table[key] = pk
308
309		# Map episodes in show
310		if i_media == 'episodes':
311		if type(item) is trakt_objects.Show:
312		if pk not in self.episode_keys:
313		self.episode_keys[pk] = set()
314
315		for identifier, _ in item.episodes():
316		self.episode_keys[pk].add(identifier)
317		elif type(item) is trakt_objects.Episode:
318		# TODO
319		pass
320		else:
321		log.debug('Unknown episode item: %r', item)
322
323		# Task checkpoint
324		self.task.checkpoint()
325
326	1	def keys(self, media):
327		if type(media) is not str:
328		media = self.media(media)
329
330		if media == 'movies':
331		return self.movie_keys
332
333		if media in ['shows', 'seasons', 'episodes']:
334		return self.show_keys
335
336		log.warn('Unknown media: %r', media)
337		return None
338
339	1	@staticmethod
340		def media(item):
341	1	if type(item) is not type:
342	1	i_type = type(item)
343		else:
344		i_type = item
345
346	1	if issubclass(i_type, (trakt_objects.Movie, plex_objects.Movie)):
347	1	return 'movies'
348
349	1	if issubclass(i_type, (trakt_objects.Show, plex_objects.Show)):
350		return 'shows'
351
352	1	if issubclass(i_type, (trakt_objects.Season, plex_objects.Season)):
353		return 'seasons'
354
355	1	if issubclass(i_type, (trakt_objects.Episode, plex_objects.Episode)):
356	1	return 'episodes'
357
358		log.warn('Unknown item type: %r', i_type)
359		return None
360
361	1	def table(self, media):
362	1	if type(media) is not str:
363	1	media = self.media(media)
364
365	1	if media == 'movies':
366	1	return self.movies
367
368	1	if media in ['shows', 'seasons', 'episodes']:
369	1	return self.shows
370
371		log.warn('Unknown media: %r', media)
372		return None
373
374	1	def __call__(self, media):
375		return self.table(media)
376

fuzeman / Plex-Trakt-Scrobbler

Table.map_items() F last analyzed 2018-03-05 01:11 UTC

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Table.map_items() F
last analyzed 2018-03-05 01:11 UTC