# This file is part of QuTiP: Quantum Toolbox in Python.
#
#    Copyright (c) 2011 and later, Paul D. Nation and Robert J. Johansson.
#
#    Redistribution and use in source and binary forms, with or without
#    modification, are permitted provided that the following conditions are
#    met:
#
#    1. Redistributions of source code must retain the above copyright notice,
#       this list of conditions and the following disclaimer.
#
#    2. 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.
#
#    3. Neither the name of the QuTiP: Quantum Toolbox in Python 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
#    HOLDER 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.
###############################################################################
"""
Command line output of information on QuTiP and dependencies.
"""

import sys
import os
import platform
import numpy
import scipy
import inspect
from qutip.utilities import _blas_info
import qutip.settings
from qutip.hardware_info import hardware_info

"""
About box for QuTiP. Gives version numbers for
QuTiP, NumPy, SciPy, Cython, and MatPlotLib.
"""
print("")
print("QuTiP: Quantum Toolbox in Python")
print("================================")
print("Copyright (c) QuTiP team 2011 and later.")
print("Original developers: R. J. Johansson & P. D. Nation.")
print("Current admin team: Alexander Pitchford, Paul D. Nation, "
"Nathan Shammah, Shahnawaz Ahmed, "
"Neill Lambert, and Eric Giguère.")
print("Project Manager: Franco Nori.")
print("Currently developed through wide collaboration. "
"See https://github.com/qutip for details.")
print("")
print("QuTiP Version:      %s" % qutip.__version__)
print("Numpy Version:      %s" % numpy.__version__)
print("Scipy Version:      %s" % scipy.__version__)
try:
import Cython
cython_ver = Cython.__version__
except:
cython_ver = 'None'
print("Cython Version:     %s" % cython_ver)
try:
import matplotlib
matplotlib_ver = matplotlib.__version__
except:
matplotlib_ver = 'None'
print("Matplotlib Version: %s" % matplotlib_ver)
print("Python Version:     %d.%d.%d" % sys.version_info[0:3])
print("Number of CPUs:     %s" % hardware_info()['cpus'])
print("BLAS Info:          %s" % _blas_info())
print("OPENMP Installed:   %s" % str(qutip.settings.has_openmp))
print("INTEL MKL Ext:      %s" % str(qutip.settings.has_mkl))
print("Platform Info:      %s (%s)" % (platform.system(),
platform.machine()))
qutip_install_path = os.path.dirname(inspect.getsourcefile(qutip))
print("Installation path:  %s" % qutip_install_path)

# citation
longbar = "=============================================================="
longbar += "================"
cite_msg = "For your convenience a bibtex reference can be easily generated"
cite_msg += " using qutip.cite()"
print(longbar)