"""Track Field Constants."""

# Basic Metadata
TRACK_NAME = 'track_name'
VERSION = 'version'
META_LANGUAGE_CODE = 'meta_language_code'
ISRC = 'isrc'
P_INFO = 'p_info'
EXPLICIT = 'explicit'
UPC = 'upc'
THIRD_PARTY_PUBLISHER = 'third_party_publisher'
US_PUBLISHING_OBLIGATION = 'us_publishing_obligation'
PREVIEW_START_TIME = 'preview_start_time'

# Duration (Legacy fields needed for Orchard Workstation and releasing)
DURATION_MINUTES = 'duration_minutes'
DURATION_SECONDS = 'duration_seconds'

DURATION_FIELDS = (DURATION_MINUTES, DURATION_SECONDS)

# Ordering
VOLUME_NUMBER = 'volume_number'
TRACK_NUMBER = 'track_number'

# Master Rights
OWNERSHIP_RIGHTS = 'ownership_rights'
RECORDING_COUNTRY_ID = 'recording_country_id'
ORIGINAL_RIGHTS_HOLDER_COUNTRY_ID = 'original_rights_holder_country_id'

# Focus Tracks
FOCUS_TRACK = 'focus_track'
FOCUS_TRACK_START_DATE = 'focus_track_start_date'
FOCUS_TRACK_END_DATE = 'focus_track_end_date'

TRACK_TYPE = 'track_type'
OFFER_TYPE = 'offer_type'

WRITERS = 'writers'
ARTISTS = 'artists'
PUBLISHERS = 'publishers'

NUMERIC_FIELDS = (TRACK_NUMBER, VOLUME_NUMBER, UPC,
                  PREVIEW_START_TIME, DURATION_MINUTES, DURATION_SECONDS,
                  RECORDING_COUNTRY_ID, ORIGINAL_RIGHTS_HOLDER_COUNTRY_ID)

STRING_FIELDS = (
    OWNERSHIP_RIGHTS,
    TRACK_NAME, VERSION, META_LANGUAGE_CODE, ISRC, P_INFO,
    EXPLICIT, THIRD_PARTY_PUBLISHER, US_PUBLISHING_OBLIGATION,
    TRACK_TYPE, OFFER_TYPE, FOCUS_TRACK)

DATE_FIELDS = (FOCUS_TRACK_START_DATE, FOCUS_TRACK_END_DATE)

BASIC_MODEL_FIELDS = NUMERIC_FIELDS + STRING_FIELDS + DATE_FIELDS