# Copyright(c) 2017, Intel Corporation
#
# Redistribution  and  use  in source  and  binary  forms,  with  or  without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of  source code  must retain the  above copyright notice,
#  this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
#  this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
# * Neither the name  of Intel Corporation  nor the names of its contributors
#   may be used to  endorse or promote  products derived  from this  software
#   without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,  BUT NOT LIMITED TO,  THE
# IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT  SHALL THE COPYRIGHT OWNER  OR CONTRIBUTORS BE
# LIABLE  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,  OR
# CONSEQUENTIAL  DAMAGES  (INCLUDING,  BUT  NOT LIMITED  TO,  PROCUREMENT  OF
# SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE,  DATA, OR PROFITS;  OR BUSINESS
# INTERRUPTION)  HOWEVER CAUSED  AND ON ANY THEORY  OF LIABILITY,  WHETHER IN
# CONTRACT,  STRICT LIABILITY,  OR TORT  (INCLUDING NEGLIGENCE  OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,  EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

import shutil
import tempfile
import collections

__work_dir__ = None


def get_work_dir():
    global __work_dir__
    if not __work_dir__:
        __work_dir__ = tempfile.mkdtemp(prefix="packager_work_", dir=".")
    return __work_dir__


def delete_work_dir():
    global __work_dir__
    if __work_dir__:
        shutil.rmtree(__work_dir__)


"""
Utility function to convert input to a native type
"""


def convert_to_native_type(val):
    try:
        if isinstance(val, str) and val.startswith('0x'):
            val = int(val, 16)
        else:
            val = int(val)
        return val
    except ValueError:
        pass

    try:
        val = float(val)
        return val
    except ValueError:
        pass

    try:
        val = str(val)
        return val
    except ValueError:
        raise Exception("Cannot convert passed argument to native type!")