# Licensed to Modin Development Team under one or more contributor license agreements.
# See the NOTICE file distributed with this work for additional information regarding
# copyright ownership.  The Modin Development Team licenses this file to you under the
# Apache License, Version 2.0 (the "License"); you may not use this file except in
# compliance with the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed under
# the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific language
# governing permissions and limitations under the License.

"""Module houses builder class for Fold operator."""

from .operator import Operator


class Fold(Operator):
    """Builder class for Fold functions."""

    @classmethod
    def call(cls, fold_function):
        """
        Build Fold operator that will be performed across rows/columns.

        Parameters
        ----------
        fold_function : callable(pandas.DataFrame) -> pandas.DataFrame
            Function to apply across rows/columns.

        Returns
        -------
        callable
            Function that takes query compiler and executes Fold function.
        """

        def caller(query_compiler, fold_axis=None, *args, **kwargs):
            """
            Execute Fold function against passed query compiler.

            Parameters
            ----------
            query_compiler : BaseQueryCompiler
                The query compiler to execute the function on.
            fold_axis : int, optional
                0 or None means apply across full column partitions. 1 means
                apply across full row partitions.
            *args : iterable
                Additional arguments passed to fold_function.
            **kwargs: dict
                Additional keyword arguments passed to fold_function.

            Returns
            -------
            BaseQueryCompiler
                A new query compiler representing the result of executing the
                function.
            """
            return query_compiler.__constructor__(
                query_compiler._modin_frame.fold(
                    cls.validate_axis(fold_axis),
                    lambda x: fold_function(x, *args, **kwargs),
                )
            )

        return caller

# Licensed to Modin Development Team under one or more contributor license agreements.
# See the NOTICE file distributed with this work for additional information regarding
# copyright ownership.  The Modin Development Team licenses this file to you under the
# Apache License, Version 2.0 (the "License"); you may not use this file except in
# compliance with the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed under
# the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific language
# governing permissions and limitations under the License.

"""Module houses builder class for Fold operator."""

from .operator import Operator


class Fold(Operator):
    """Builder class for Fold functions."""

    @classmethod
    def call(cls, fold_function):
        """
        Build Fold operator that will be performed across rows/columns.

        Parameters
        ----------
        fold_function : callable(pandas.DataFrame) -> pandas.DataFrame
            Function to apply across rows/columns.

        Returns
        -------
        callable
            Function that takes query compiler and executes Fold function.
        """

        def caller(query_compiler, fold_axis=None, *args, **kwargs):
            """
            Execute Fold function against passed query compiler.

            Parameters
            ----------
            query_compiler : BaseQueryCompiler
                The query compiler to execute the function on.
            fold_axis : int, optional
                0 or None means apply across full column partitions. 1 means
                apply across full row partitions.
            *args : iterable
                Additional arguments passed to fold_function.
            **kwargs: dict
                Additional keyword arguments passed to fold_function.

            Returns
            -------
            BaseQueryCompiler
                A new query compiler representing the result of executing the
                function.
            """
            return query_compiler.__constructor__(
                query_compiler._modin_frame.fold(
                    cls.validate_axis(fold_axis),
                    lambda x: fold_function(x, *args, **kwargs),
                )
            )

        return caller

# Licensed to Modin Development Team under one or more contributor license agreements. # See the NOTICE file distributed with this work for additional information regarding # copyright ownership.  The Modin Development Team licenses this file to you under the # Apache License, Version 2.0 (the "License"); you may not use this file except in # compliance with the License.  You may obtain a copy of the License at # #     http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software distributed under # the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF # ANY KIND, either express or implied. See the License for the specific language # governing permissions and limitations under the License. Module houses builder class for Fold operator. Builder class for Fold functions. Build Fold operator that will be performed across rows/columns.          Parameters         ----------         fold_function : callable(pandas.DataFrame) -> pandas.DataFrame             Function to apply across rows/columns.          Returns         -------         callable             Function that takes query compiler and executes Fold function. Execute Fold function against passed query compiler.              Parameters             ----------             query_compiler : BaseQueryCompiler                 The query compiler to execute the function on.             fold_axis : int, optional                 0 or None means apply across full column partitions. 1 means                 apply across full row partitions.             *args : iterable                 Additional arguments passed to fold_function.             **kwargs: dict                 Additional keyword arguments passed to fold_function.              Returns             -------             BaseQueryCompiler                 A new query compiler representing the result of executing the                 function.