"""Constants for analytics microservice."""


class EntityTypes:
    """Entity type enumerator class."""

    LABEL = 'L'
    SUBACCOUNT = 'S'
    ALBUM = 'A'

    @classmethod
    def get_entity_from_name(cls, name):
        """Get the entity type from name.

        Args:
            name (str): the name of the entity (not case sensitive)

        Returns:
            str: the entity type.

        """
        for entity in dir(cls):
            if entity.lower() == name.lower():
                value = getattr(cls, entity)
                if isinstance(value, str):
                    return value


class UserFields:
    """
    User fields enumerator class.

    Whenever we need to verify if a user has access to a specific row or
    result set - we can just do so by turning the user type into a specific
    field.
    """

    L = 'label_id'
    S = 'subaccount_id'


SOURCE_DEFAULT = 'store_ids'
SOURCE_SOCIAL_MEDIA = 'social_media_ids'


class TransactionType:
    """
    Transaction Type.

    Representation of a transaction type within our different systems (fact
    analytics and fact social). This new transaction type conserves some values
    that are part of our legacy such as the source_type, sequence_id and
    source_id (all the optional values.)

    This object is used later on in the response to transform the data passed
    to it.

    TODO(mortali): we might want to add some tests if this class gets more
        complex – but for now only one line (testing: self.source_type) would
        be a valuable test.
    """

    def __init__(
            self, id, name, abbr, source_type=None, sequence_id=None,
            source_id=None):
        """Create a Transaction Type.

        Args:
            name (str): name of the transaction type.
            abbr (str): abbreviation of the transaction type.
            source_type (str): origin of the data (store or social)
            sequence_id (str): legacy information used by the frontend.
            source_id (str): legacy information used by the frontend.
        """
        self.id = id
        self.name = name
        self.abbr = abbr

        # Social has a collision with our other graphs, the source_type
        # allows to distinguish the two.
        self.source_type = source_type or SOURCE_DEFAULT

        # The sequence id is used by the graph to be sorted.
        self.sequence_id = sequence_id or self.id
        self.source_id = source_id


# TODO(mortali): make this variable more consistant, it should be
#       TransactionTypes.
TRANSACTION_TYPES = {
    1: TransactionType(1, name='Subscription Audio Streams', abbr='S'),
    2: TransactionType(2, name='Sync Revenue', abbr='SR'),
    3: TransactionType(3, name='Royalty Collections', abbr='RC'),
    4: TransactionType(4, name='Downloaded Ringtones', abbr='DR'),
    5: TransactionType(5, name='Ringbacks', abbr='RB'),
    6: TransactionType(6, name='Upgraded Download Albums', abbr='UA'),
    7: TransactionType(7, name='Upgraded Download Tracks', abbr='UT'),
    8: TransactionType(8, name='Upgraded Download Videos', abbr='UV'),
    9: TransactionType(9, name='Ad-Supported Video Streams', abbr='AV'),
    10: TransactionType(10, name='Ad-Supported Audio Streams', abbr='AS'),
    12: TransactionType(12, name='Video Download Purchases', abbr='DV'),
    13: TransactionType(13, name='Download Rentals', abbr='RD'),
    14: TransactionType(14, name='Term Licenses', abbr='TL'),
    15: TransactionType(15, name='Video Bundles', abbr='VB'),
    16: TransactionType(16, name='Video Rentals', abbr='VR'),
    17: TransactionType(17, name='Subscription Video Streams', abbr='SV'),
    18: TransactionType(18, name='Trailers', abbr='TR'),
    19: TransactionType(19, name='Download Tracks', abbr='DT'),
    20: TransactionType(20, name='Tethered Downloads', abbr='TD'),
    21: TransactionType(21, name='Segments', abbr='SE'),
    22: TransactionType(22, name='Mobile Videos', abbr='MV'),
    23: TransactionType(23, name='Download Albums', abbr='DA'),
    25: TransactionType(25, name='Video Ringtones', abbr='RV'),
    26: TransactionType(26, name='Pre Cut Ringtones', abbr='PR'),
    27: TransactionType(27, name='Non-Interactive Radio', abbr='NR'),
    28: TransactionType(28, name='Cloud Match Units', abbr='CL'),
    29: TransactionType(29, name='Tethered Albums', abbr='TA'),
    30: TransactionType(30, name='Video Seasons', abbr='VS'),
    31: TransactionType(31, name='Ad-Disabled Audio Streams', abbr='US'),
    32: TransactionType(32, name='Ad-Disabled Video Streams', abbr='VU'),
    33: TransactionType(33, name='Audio UGC Matches', abbr='CA'),
    34: TransactionType(34, name='Visual UGC Matches', abbr='CV'),
    35: TransactionType(35, name='AudioVisual UGC Matches', abbr='CAV'),
    37: TransactionType(37, name='Ad-Enabled Audio Streams', abbr='AEA'),
    38: TransactionType(38, name='Ad-Enabled Video Streams', abbr='AEV'),
    48: TransactionType(48, name='Mid-Tier Subscription Audio Streams',
                        abbr='MT'),

    # Social
    # Notes(mortali):
    #   I've discussed with Rishi. The keys (FFA, FFR, and FEEI)
    #   are now matching more closely what facebok uses (fan unique adds,
    #   fan unique removes, and fan interactions.)
    10001: TransactionType(
        1, 'Fans Gained', abbr='FFA',
        source_type=SOURCE_SOCIAL_MEDIA, sequence_id='FansGain-1',
        source_id='social_1'),
    10002: TransactionType(
        2, 'Fans Lost', abbr='FFR',
        source_type=SOURCE_SOCIAL_MEDIA, sequence_id='FansLost-2',
        source_id='social_2'),  # Dislikes
    10003: TransactionType(
        3, 'Facebook Impressions', abbr='FEI',
        source_type=SOURCE_SOCIAL_MEDIA, sequence_id='Engagement-3',
        source_id='social_3')
}

ARRAY_DEFAULT_KEY = 'items'
MAX_DAYS_IN_DATE_RANGE = 375

GENDERS = ('women', 'men', 'unknown')

SPOTIFY_ID = '286'
APPLE_MUSIC_ID = '1'
AVAILABLE_DEMOGRAPHICS_STORE_IDS = [SPOTIFY_ID, APPLE_MUSIC_ID]