# SPDX-License-Identifier: Apache-2.0
#
# The OpenSearch Contributors require contributions made to
# this file be licensed under the Apache-2.0 license or a
# compatible open source license.
# Modifications Copyright OpenSearch Contributors. See
# GitHub history for details.
# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. 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.

def bytes_to_kb(b):
    return b / 1024.0 if b else b


def bytes_to_mb(b):
    return b / 1024.0 / 1024.0 if b else b


def bytes_to_gb(b):
    return b / 1024.0 / 1024.0 / 1024.0 if b else b


def bytes_to_human_string(b):
    if b is None:
        return "N/A"
    gb = bytes_to_gb(b)
    if gb > 1.0:
        return "%.1f GB" % gb
    mb = bytes_to_mb(b)
    if mb > 1.0:
        return "%.1f MB" % mb
    kb = bytes_to_kb(b)
    if kb > 1.0:
        return "%.1f kB" % kb
    return "%d bytes" % b


def number_to_human_string(number):
    return "{:,}".format(number)


def mb_to_bytes(mb):
    return int(mb * 1024 * 1024) if mb else mb


def gb_to_bytes(gb):
    return gb * 1024 * 1024 * 1024 if gb else gb


def seconds_to_ms(s):
    return s * 1000 if s else s


def seconds_to_hour_minute_seconds(s):
    if s:
        hours = s // 3600
        minutes = (s - 3600 * hours) // 60
        seconds = s - 3600 * hours - 60 * minutes
        return hours, minutes, seconds
    else:
        return s, s, s


def ms_to_seconds(ms):
    return ms / 1000.0 if ms else ms


def ms_to_minutes(ms):
    return ms / 1000.0 / 60.0 if ms else ms


def factor(n):
    return lambda v: v * n


def to_bool(value):
    if value in ["True", "true", "Yes", "yes", "t", "y", "1", True]:
        return True
    elif value in ["False", "false", "No", "no", "f", "n", "0", False]:
        return False
    else:
        raise ValueError("Cannot convert [%s] to bool." % value)