from ..service import aliases
from ... import errors
from .datecolumn import NumpyDateColumn
from .datetimecolumn import create_numpy_datetime_column
from .floatcolumn import NumpyFloat32Column, NumpyFloat64Column
from .intcolumn import (
    NumpyInt8Column, NumpyInt16Column, NumpyInt32Column, NumpyInt64Column,
    NumpyUInt8Column, NumpyUInt16Column, NumpyUInt32Column, NumpyUInt64Column
)
from .lowcardinalitycolumn import create_numpy_low_cardinality_column
from .stringcolumn import create_string_column
from .tuplecolumn import create_tuple_column
from ..nullablecolumn import create_nullable_column

column_by_type = {c.ch_type: c for c in [
    NumpyDateColumn,
    NumpyFloat32Column, NumpyFloat64Column,
    NumpyInt8Column, NumpyInt16Column, NumpyInt32Column, NumpyInt64Column,
    NumpyUInt8Column, NumpyUInt16Column, NumpyUInt32Column, NumpyUInt64Column
]}


def get_numpy_column_by_spec(spec, column_options):
    def create_column_with_options(x):
        return get_numpy_column_by_spec(x, column_options)

    if spec == 'String' or spec.startswith('FixedString'):
        return create_string_column(spec, column_options)

    elif spec.startswith('DateTime'):
        return create_numpy_datetime_column(spec, column_options)

    elif spec.startswith('Tuple'):
        return create_tuple_column(
            spec, create_column_with_options, column_options
        )

    elif spec.startswith('Nullable'):
        return create_nullable_column(spec, create_column_with_options)

    elif spec.startswith('LowCardinality'):
        return create_numpy_low_cardinality_column(
            spec, create_column_with_options, column_options
        )
    else:
        for alias, primitive in aliases:
            if spec.startswith(alias):
                return create_column_with_options(
                    primitive + spec[len(alias):]
                )

        if spec in column_by_type:
            cls = column_by_type[spec]
            return cls(**column_options)

        raise errors.UnknownTypeError('Unknown type {}'.format(spec))