#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# 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.

import re
import sys
import collections
import os
import six
import time
import numpy as np
import paddle.fluid as fluid
import paddle
import csv
import io

from paddlerec.core.reader import Reader
from paddlerec.core.utils import envs

class TrainReader(Reader):
    def init(self):
        pass

    def _process_line(self, l): 
        l = l.strip().split(" ")
        data = l[0:10]
        seq_len = l[10:11]
        label = l[11:]
        return  data, label, seq_len

    def generate_sample(self, line):
        def data_iter():
            data, label, seq_len = self._process_line(line)
            if data is None:
                yield None
                return
            data = [int(i) for i in data]
            label = [int(i) for i in label]
            seq_len = [int(i) for i in seq_len]
            print >>sys.stderr, str([('data', data), ('label', label), ('seq_len', seq_len)])
            yield [('data', data), ('label', label), ('seq_len', seq_len)]
        return data_iter