# Copyright NeMo (https://github.com/NVIDIA/NeMo). 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 csv
import os

UNIT_1e01 = '十'
UNIT_1e02 = '百'
UNIT_1e03 = '千'
UNIT_1e04 = '万'


def get_abs_path(rel_path):
    """
    Get absolute path

    Args:
        rel_path: relative path to this file
        
    Returns absolute path
    """
    return os.path.dirname(os.path.abspath(__file__)) + '/' + rel_path


def load_labels(abs_path):
    """
    loads relative path file as dictionary

    Args:
        abs_path: absolute path

    Returns dictionary of mappings
    """
    label_tsv = open(abs_path, encoding="utf-8")
    labels = list(csv.reader(label_tsv, delimiter="\t"))
    return labels


def augment_labels_with_punct_at_end(labels):
    """
    augments labels: if key ends on a punctuation that value does not have, add a new label 
    where the value maintains the punctuation

    Args:
        labels : input labels
    Returns:
        additional labels
    """
    res = []
    for label in labels:
        if len(label) > 1:
            if label[0][-1] == "." and label[1][-1] != ".":
                res.append([label[0], label[1] + "."] + label[2:])
    return res