# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

import os.path


class EnvironmentModules(Package):
    """The Environment Modules package provides for the dynamic
    modification of a user's environment via module files.
    """

    homepage = 'https://cea-hpc.github.io/modules/'
    url = 'https://github.com/cea-hpc/modules/releases/download/v4.2.2/modules-4.2.2.tar.gz'

    maintainers = ['xdelaruelle']

    version('4.2.2', sha256='481fe8d03eec6806c1b401d764536edc2c233ac9d82091a10094de6101867afc')
    version('4.2.1', sha256='c796ea6a03e22d63886ca9ec6b1bef821e8cb09f186bd007f63653e31e9cb595')
    version('4.2.0', sha256='d439dfa579a633108c4f06574ed9bc3b91b8610d2ce3a6eb803bf377d0284be7')
    version('4.1.4', sha256='965b6056ea6b72b87d9352d4c1db1d7a7f9f358b9408df2689d823b932d6aa7f')
    version('4.1.3', sha256='dab82c5bc20ccea284b042d6af4bd6eaba95f4eaadd495a75413115d33a3151f')
    version('4.1.2', sha256='d1f54f639d1946aa1d7ae8ae03752f8ac464a879c14bc35e63b6a87b8a0b7522')
    version('4.1.1', sha256='998e9cc936045b4e84f28ca60c4680c08385a210d6bb95fc31c28a7d634a9357')
    version('4.1.0', sha256='d98aa369219bf0a4ec41efe7cb8d1127d34cb07666088dd79da6b424196d4cfd')
    version('4.0.0', sha256='f0ab7f6a747863cb980681a904a3c9380e2e52de6eb046cfa285e5e225f9ac47')
    version(
        '3.2.10', sha256='fb05c82a83477805a1d97737a9f0ca0db23f69b7bce504f1609ba99477b03955',
        url='http://prdownloads.sourceforge.net/modules/modules-3.2.10.tar.gz'
    )

    variant('X', default=True, description='Build with X functionality')

    # Dependencies:
    depends_on('tcl', type=('build', 'link', 'run'))
    depends_on('tcl@8.4:', type=('build', 'link', 'run'), when='@4.0.0:')

    def install(self, spec, prefix):
        tcl = spec['tcl']

        # Determine where we can find tclConfig.sh
        for tcl_lib_dir in [tcl.prefix.lib, tcl.prefix.lib64]:
            tcl_config_file = os.path.join(tcl_lib_dir, 'tclConfig.sh')
            if os.path.exists(tcl_config_file):
                break
        else:
            raise InstallError('Failed to locate tclConfig.sh')

        config_args = [
            "--prefix=" + prefix,
            "--without-tclx",
            "--with-tclx-ver=0.0",
            # It looks for tclConfig.sh
            "--with-tcl=" + tcl_lib_dir,
            "--with-tcl-ver={0}.{1}".format(*tcl.version.version[0:2]),
            '--disable-dependency-tracking',
            '--disable-silent-rules',
            '--disable-versioning',
            '--datarootdir=' + prefix.share
        ]

        if '~X' in spec:
            config_args = ['--without-x'] + config_args

        if '@4.2.0:' in self.spec:
            config_args.extend([
                '--enable-auto-handling'
            ])

        if '@4.1.0:' in self.spec:
            config_args.extend([
                # Variables in quarantine are empty during module command
                # start-up and they will be restored to the value they had
                # in the environment once the command starts
                '--with-quarantine-vars=LD_LIBRARY_PATH'
            ])

        if '@4.0.0:' in self.spec:
            config_args.extend([
                '--disable-compat-version',
                '--with-tclsh={0}'.format(tcl.prefix.bin.tclsh)
            ])

        if '@3.2.10' in self.spec:
            # See: https://sourceforge.net/p/modules/bugs/62/
            config_args.extend([
                '--disable-debug',
                'CPPFLAGS=-DUSE_INTERP_ERRORLINE'
            ])

        configure(*config_args)
        make()
        make('install')
