#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2021 Intel Corporation
#
# Licensed 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.

from neural_compressor.utils.utility import LazyImport
from .filter import Filter, filter_registry
tf = LazyImport('tensorflow')

@filter_registry(filter_type="LabelBalanceCOCORecord", framework="tensorflow, tensorflow_itex")
class LabelBalanceCOCORecordFilter(Filter):
    def __init__(self, size=1):
        self.size = size

    def __call__(self, image, label):
        return tf.math.equal(len(label[0]), self.size)

@filter_registry(filter_type="LabelBalanceCOCORaw", framework="tensorflow, \
                 tensorflow_itex, pytorch, mxnet, onnxrt_qlinearops, onnxrt_integerops")
class LabelBalanceCOCORawFilter(Filter):
    def __init__(self, size=1):
        self.size = size

    def __call__(self, image, label):
        return len(label) == self.size

