import os
import atexit
import json
import ast
import logging
import time
from peewee import *
from playhouse.sqliteq import SqliteQueueDatabase
from playhouse.shortcuts import model_to_dict
from playhouse.migrate import *
from playhouse.sqlite_ext import RowIDField

from helper import path_mappings
from config import settings, get_array_from
from get_args import args

database = SqliteQueueDatabase(os.path.join(args.config_dir, 'db', 'bazarr.db'),
                               use_gevent=False,
                               autostart=True,
                               queue_max_size=256)
migrator = SqliteMigrator(database)


@atexit.register
def _stop_worker_threads():
    database.stop()


class UnknownField(object):
    def __init__(self, *_, **__): pass


class BaseModel(Model):
    class Meta:
        database = database


class System(BaseModel):
    configured = TextField(null=True)
    updated = TextField(null=True)

    class Meta:
        table_name = 'system'
        primary_key = False


class TableBlacklist(BaseModel):
    language = TextField(null=True)
    provider = TextField(null=True)
    sonarr_episode_id = IntegerField(null=True)
    sonarr_series_id = IntegerField(null=True)
    subs_id = TextField(null=True)
    timestamp = IntegerField(null=True)

    class Meta:
        table_name = 'table_blacklist'
        primary_key = False


class TableBlacklistMovie(BaseModel):
    language = TextField(null=True)
    provider = TextField(null=True)
    radarr_id = IntegerField(null=True)
    subs_id = TextField(null=True)
    timestamp = IntegerField(null=True)

    class Meta:
        table_name = 'table_blacklist_movie'
        primary_key = False


class TableEpisodes(BaseModel):
    rowid = RowIDField()
    audio_codec = TextField(null=True)
    audio_language = TextField(null=True)
    episode = IntegerField()
    episode_file_id = IntegerField(null=True)
    failedAttempts = TextField(null=True)
    ffprobe_cache = BlobField(null=True)
    file_size = IntegerField(default=0, null=True)
    format = TextField(null=True)
    missing_subtitles = TextField(null=True)
    monitored = TextField(null=True)
    path = TextField()
    resolution = TextField(null=True)
    scene_name = TextField(null=True)
    season = IntegerField()
    sonarrEpisodeId = IntegerField(unique=True)
    sonarrSeriesId = IntegerField()
    subtitles = TextField(null=True)
    title = TextField()
    video_codec = TextField(null=True)

    class Meta:
        table_name = 'table_episodes'
        primary_key = False


class TableHistory(BaseModel):
    action = IntegerField()
    description = TextField()
    id = AutoField()
    language = TextField(null=True)
    provider = TextField(null=True)
    score = TextField(null=True)
    sonarrEpisodeId = IntegerField()
    sonarrSeriesId = IntegerField()
    subs_id = TextField(null=True)
    subtitles_path = TextField(null=True)
    timestamp = IntegerField()
    video_path = TextField(null=True)

    class Meta:
        table_name = 'table_history'


class TableHistoryMovie(BaseModel):
    action = IntegerField()
    description = TextField()
    id = AutoField()
    language = TextField(null=True)
    provider = TextField(null=True)
    radarrId = IntegerField()
    score = TextField(null=True)
    subs_id = TextField(null=True)
    subtitles_path = TextField(null=True)
    timestamp = IntegerField()
    video_path = TextField(null=True)

    class Meta:
        table_name = 'table_history_movie'


class TableLanguagesProfiles(BaseModel):
    cutoff = IntegerField(null=True)
    items = TextField()
    name = TextField()
    profileId = AutoField()

    class Meta:
        table_name = 'table_languages_profiles'


class TableMovies(BaseModel):
    rowid = RowIDField()
    alternativeTitles = TextField(null=True)
    audio_codec = TextField(null=True)
    audio_language = TextField(null=True)
    failedAttempts = TextField(null=True)
    fanart = TextField(null=True)
    ffprobe_cache = BlobField(null=True)
    file_size = IntegerField(default=0, null=True)
    format = TextField(null=True)
    imdbId = TextField(null=True)
    missing_subtitles = TextField(null=True)
    monitored = TextField(null=True)
    movie_file_id = IntegerField(null=True)
    overview = TextField(null=True)
    path = TextField(unique=True)
    poster = TextField(null=True)
    profileId = IntegerField(null=True)
    radarrId = IntegerField(unique=True)
    resolution = TextField(null=True)
    sceneName = TextField(null=True)
    sortTitle = TextField(null=True)
    subtitles = TextField(null=True)
    tags = TextField(null=True)
    title = TextField()
    tmdbId = TextField(unique=True)
    video_codec = TextField(null=True)
    year = TextField(null=True)

    class Meta:
        table_name = 'table_movies'


class TableMoviesRootfolder(BaseModel):
    accessible = IntegerField(null=True)
    error = TextField(null=True)
    id = IntegerField(null=True)
    path = TextField(null=True)

    class Meta:
        table_name = 'table_movies_rootfolder'
        primary_key = False


class TableSettingsLanguages(BaseModel):
    code2 = TextField(null=True)
    code3 = TextField(primary_key=True)
    code3b = TextField(null=True)
    enabled = IntegerField(null=True)
    name = TextField()

    class Meta:
        table_name = 'table_settings_languages'


class TableSettingsNotifier(BaseModel):
    enabled = IntegerField(null=True)
    name = TextField(null=True, primary_key=True)
    url = TextField(null=True)

    class Meta:
        table_name = 'table_settings_notifier'


class TableShows(BaseModel):
    alternateTitles = TextField(null=True)
    audio_language = TextField(null=True)
    fanart = TextField(null=True)
    imdbId = TextField(default='""', null=True)
    overview = TextField(null=True)
    path = TextField(unique=True)
    poster = TextField(null=True)
    profileId = IntegerField(null=True)
    seriesType = TextField(null=True)
    sonarrSeriesId = IntegerField(unique=True)
    sortTitle = TextField(null=True)
    tags = TextField(null=True)
    title = TextField()
    tvdbId = AutoField()
    year = TextField(null=True)

    class Meta:
        table_name = 'table_shows'


class TableShowsRootfolder(BaseModel):
    accessible = IntegerField(null=True)
    error = TextField(null=True)
    id = IntegerField(null=True)
    path = TextField(null=True)

    class Meta:
        table_name = 'table_shows_rootfolder'
        primary_key = False


class TableCustomScoreProfiles(BaseModel):
    id = AutoField()
    name = TextField(null=True)
    media = TextField(null=True)
    score = IntegerField(null=True)

    class Meta:
        table_name = 'table_custom_score_profiles'


class TableCustomScoreProfileConditions(BaseModel):
    profile_id = ForeignKeyField(TableCustomScoreProfiles, to_field="id")
    type = TextField(null=True) # provider, uploader, regex, etc
    value = TextField(null=True) # opensubtitles, jane_doe, [a-z], etc
    required = BooleanField(default=False)
    negate = BooleanField(default=False)

    class Meta:
        table_name = 'table_custom_score_profile_conditions'


def init_db():
    # Create tables if they don't exists.
    database.create_tables([System,
                            TableBlacklist,
                            TableBlacklistMovie,
                            TableEpisodes,
                            TableHistory,
                            TableHistoryMovie,
                            TableLanguagesProfiles,
                            TableMovies,
                            TableMoviesRootfolder,
                            TableSettingsLanguages,
                            TableSettingsNotifier,
                            TableShows,
                            TableShowsRootfolder,
                            TableCustomScoreProfiles,
                            TableCustomScoreProfileConditions])

    # add the system table single row if it's not existing
    # we must retry until the tables are created
    tables_created = False
    while not tables_created:
        try:
            if not System.select().count():
                System.insert({System.configured: '0', System.updated: '0'}).execute()
        except:
            time.sleep(0.1)
        else:
            tables_created = True


def migrate_db():
    migrate(
        migrator.add_column('table_shows', 'year', TextField(null=True)),
        migrator.add_column('table_shows', 'alternateTitles', TextField(null=True)),
        migrator.add_column('table_shows', 'tags', TextField(default='[]', null=True)),
        migrator.add_column('table_shows', 'seriesType', TextField(default='""', null=True)),
        migrator.add_column('table_shows', 'imdbId', TextField(default='""', null=True)),
        migrator.add_column('table_shows', 'profileId', IntegerField(null=True)),
        migrator.add_column('table_episodes', 'format', TextField(null=True)),
        migrator.add_column('table_episodes', 'resolution', TextField(null=True)),
        migrator.add_column('table_episodes', 'video_codec', TextField(null=True)),
        migrator.add_column('table_episodes', 'audio_codec', TextField(null=True)),
        migrator.add_column('table_episodes', 'episode_file_id', IntegerField(null=True)),
        migrator.add_column('table_episodes', 'audio_language', TextField(null=True)),
        migrator.add_column('table_episodes', 'file_size', IntegerField(default=0, null=True)),
        migrator.add_column('table_episodes', 'ffprobe_cache', BlobField(null=True)),
        migrator.add_column('table_movies', 'sortTitle', TextField(null=True)),
        migrator.add_column('table_movies', 'year', TextField(null=True)),
        migrator.add_column('table_movies', 'alternativeTitles', TextField(null=True)),
        migrator.add_column('table_movies', 'format', TextField(null=True)),
        migrator.add_column('table_movies', 'resolution', TextField(null=True)),
        migrator.add_column('table_movies', 'video_codec', TextField(null=True)),
        migrator.add_column('table_movies', 'audio_codec', TextField(null=True)),
        migrator.add_column('table_movies', 'imdbId', TextField(null=True)),
        migrator.add_column('table_movies', 'movie_file_id', IntegerField(null=True)),
        migrator.add_column('table_movies', 'tags', TextField(default='[]', null=True)),
        migrator.add_column('table_movies', 'profileId', IntegerField(null=True)),
        migrator.add_column('table_movies', 'file_size', IntegerField(default=0, null=True)),
        migrator.add_column('table_movies', 'ffprobe_cache', BlobField(null=True)),
        migrator.add_column('table_history', 'video_path', TextField(null=True)),
        migrator.add_column('table_history', 'language', TextField(null=True)),
        migrator.add_column('table_history', 'provider', TextField(null=True)),
        migrator.add_column('table_history', 'score', TextField(null=True)),
        migrator.add_column('table_history', 'subs_id', TextField(null=True)),
        migrator.add_column('table_history', 'subtitles_path', TextField(null=True)),
        migrator.add_column('table_history_movie', 'video_path', TextField(null=True)),
        migrator.add_column('table_history_movie', 'language', TextField(null=True)),
        migrator.add_column('table_history_movie', 'provider', TextField(null=True)),
        migrator.add_column('table_history_movie', 'score', TextField(null=True)),
        migrator.add_column('table_history_movie', 'subs_id', TextField(null=True)),
        migrator.add_column('table_history_movie', 'subtitles_path', TextField(null=True))
    )


class SqliteDictPathMapper:
    def __init__(self):
        pass

    @staticmethod
    def path_replace(values_dict):
        if type(values_dict) is list:
            for item in values_dict:
                item['path'] = path_mappings.path_replace(item['path'])
        elif type(values_dict) is dict:
            values_dict['path'] = path_mappings.path_replace(values_dict['path'])
        else:
            return path_mappings.path_replace(values_dict)

    @staticmethod
    def path_replace_movie(values_dict):
        if type(values_dict) is list:
            for item in values_dict:
                item['path'] = path_mappings.path_replace_movie(item['path'])
        elif type(values_dict) is dict:
            values_dict['path'] = path_mappings.path_replace_movie(values_dict['path'])
        else:
            return path_mappings.path_replace_movie(values_dict)


dict_mapper = SqliteDictPathMapper()


def get_exclusion_clause(exclusion_type):
    where_clause = []
    if exclusion_type == 'series':
        tagsList = ast.literal_eval(settings.sonarr.excluded_tags)
        for tag in tagsList:
            where_clause.append(~(TableShows.tags.contains("\'"+tag+"\'")))
    else:
        tagsList = ast.literal_eval(settings.radarr.excluded_tags)
        for tag in tagsList:
            where_clause.append(~(TableMovies.tags.contains("\'"+tag+"\'")))

    if exclusion_type == 'series':
        monitoredOnly = settings.sonarr.getboolean('only_monitored')
        if monitoredOnly:
            where_clause.append((TableEpisodes.monitored == 'True'))
    else:
        monitoredOnly = settings.radarr.getboolean('only_monitored')
        if monitoredOnly:
            where_clause.append((TableMovies.monitored == 'True'))

    if exclusion_type == 'series':
        typesList = get_array_from(settings.sonarr.excluded_series_types)
        for item in typesList:
            where_clause.append((TableShows.seriesType != item))

    return where_clause


def update_profile_id_list():
    global profile_id_list
    profile_id_list = TableLanguagesProfiles.select(TableLanguagesProfiles.profileId,
                                                    TableLanguagesProfiles.name,
                                                    TableLanguagesProfiles.cutoff,
                                                    TableLanguagesProfiles.items).dicts()
    profile_id_list = list(profile_id_list)
    for profile in profile_id_list:
        profile['items'] = json.loads(profile['items'])


def get_profiles_list(profile_id=None):
    try:
        len(profile_id_list)
    except NameError:
        update_profile_id_list()

    if profile_id and profile_id != 'null':
        for profile in profile_id_list:
            if profile['profileId'] == profile_id:
                return profile
    else:
        return profile_id_list


def get_desired_languages(profile_id):
    languages = []

    if not len(profile_id_list):
        update_profile_id_list()

    if profile_id and profile_id != 'null':
        for profile in profile_id_list:
            profileId, name, cutoff, items = profile.values()
            if profileId == int(profile_id):
                languages = [x['language'] for x in items]
                break

    return languages


def get_profile_id_name(profile_id):
    name_from_id = None

    if not len(profile_id_list):
        update_profile_id_list()

    if profile_id and profile_id != 'null':
        for profile in profile_id_list:
            profileId, name, cutoff, items = profile.values()
            if profileId == int(profile_id):
                name_from_id = name
                break

    return name_from_id


def get_profile_cutoff(profile_id):
    cutoff_language = None

    if not len(profile_id_list):
        update_profile_id_list()

    if profile_id and profile_id != 'null':
        cutoff_language = []
        for profile in profile_id_list:
            profileId, name, cutoff, items = profile.values()
            if cutoff:
                if profileId == int(profile_id):
                    for item in items:
                        if item['id'] == cutoff:
                            return [item]
                        elif cutoff == 65535:
                            cutoff_language.append(item)

        if not len(cutoff_language):
            cutoff_language = None

    return cutoff_language


def get_audio_profile_languages(series_id=None, episode_id=None, movie_id=None):
    from get_languages import alpha2_from_language, alpha3_from_language
    audio_languages = []

    if series_id:
        audio_languages_list_str = TableShows.get(TableShows.sonarrSeriesId == series_id).audio_language
    elif episode_id:
        audio_languages_list_str = TableEpisodes.get(TableEpisodes.sonarrEpisodeId == episode_id).audio_language
    elif movie_id:
        audio_languages_list_str = TableMovies.get(TableMovies.radarrId == movie_id).audio_language
    else:
        return audio_languages

    try:
        audio_languages_list = ast.literal_eval(audio_languages_list_str)
    except ValueError:
        pass
    else:
        for language in audio_languages_list:
            audio_languages.append(
                {"name": language,
                 "code2": alpha2_from_language(language) or None,
                 "code3": alpha3_from_language(language) or None}
            )

    return audio_languages


def convert_list_to_clause(arr: list):
    if isinstance(arr, list):
        return f"({','.join(str(x) for x in arr)})"
    else:
        return ""