class Definitions:
    """
    This class contains some base attributes which are used across multiple other classes
    """

    # Anomalies described here: https://epc.opendatacommunities.org/docs/guidance#glossary
    DATA_ANOMALY_MATCHES = {
        # Invalid reports are where the value provided is out of bounds, e.g. a negative energy rating of -1199 or a
        # non-integer, there is no valid energy band for this, so it is marked as INVALID!
        "INVALID",
        "INVALID!",
        # When the energy certificate was first lodged on the register there was no requirement to lodge this data
        # item, i.e. a non-mandatory item.
        "NO DATA!",
        "NODATA!",
        # When the energy certificate was first lodged on the register there was no requirement to lodge this data item,
        # i.e.a non - mandatory item.
        "N/A",
        # A value generated by the register to account for a data item that was not mandatory when the lodgement of
        # the energy certificate occurred. When the data item became mandatory the register operator, for backwards
        # compatibility purposes, populated the data field with a value of ‘not recorded’ to ensure that the energy
        # certificate retrieval process is successfully completed. Mandatory data items cannot be applied
        # retrospectively to energy certificates lodged before the date of the change.
        "Not recorded",
        # The data also contains DECs with an operational rating of ‘9999’ (a ‘default’ DEC). The production of a
        # ‘default’ DEC value was allowed to enable building occupiers, with poor quality or no energy data,
        # the opportunity to comply with the regulations. From April 2011 the ability to lodge a ‘default’ DEC was no
        # longer allowed.
        "9999",
        # The Building Emission Rate (BER) data field for non-domestic buildings may contain a ‘blank’ value. The BER
        # was only lodged on the register from 7 March 2010.
        "Blank"
        # There are currently just over 8,600 records where the local authority identifier is ‘null’. This is due to 
        # the Register Operator not being able to match the building address in the Markermap Ordinance Survey (GB) 
        # lookup tables or OS MasterMap Address Layer 2 data. The majority of these addresses have been requested 
        # manually by energy assessors for inclusion by the Register Operator in the registers (e.g. new builds, 
        # etc). These records are being published for completeness. An ongoing process to manage these manually added 
        # addresses will take time to develop to deal with these and future anomalies.
        #
        # There are several fields within the lodged data where it is possible to enter multiple entries to cater for 
        # different data_types of build within a single property, i.e. extensions. This results in multiple entries for 
        # the description fields for floor, roof and wall. For the purposes of this data release only the information 
        # contained within the first of these multiple entries is being provided. As there are no restrictions on the 
        # value in this first field it means that sometimes the first field in a multiple entry description field may 
        # contain a ‘null’ value. A resolution to correct these anomalies will be considered for future data releases.
        "NULL",
        # We sometimes see fields populated with just an empty string.
        ""
    }

    DATA_ANOMALY_SUBSTRINGS = {
        # Where values in a ‘pick’ list that have been superseded by another value. For example, where a value for
        # ‘pitched roof’ has been replaced by three sub-categories of pitched roof. The original value is retained
        # but ‘for backward compatibility only’ it is appended to ensure that the energy certificate retrieval
        # process can be successfully completed. Replacement data items cannot be applied retrospectively to energy
        # certificates lodged on the register before the date of the change.
        "for backward compatibility only"
    }