# 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 glob
import os

from spack import *


class Ioapi(MakefilePackage):
    """Models-3/EDSS Input/Output Applications Programming Interface."""

    homepage = "https://www.cmascenter.org/ioapi/"
    url      = "https://www.cmascenter.org/ioapi/download/ioapi-3.2.tar.gz"
    git      = "https://github.com/cjcoats/ioapi-3.2"
    version('3.2', sha256='4858415e265d017b45d8b2d661286d8db8f6e70a5736f7a0d06ca275fab84c47')
    version('3.2-large', commit='3490a48998ea4fec7946f254e1aaf8bb7790f1e0')
    depends_on('mpi')
    depends_on('netcdf@4:')
    depends_on('netcdf-fortran@4:')
    depends_on('sed', type='build')

    def edit(self, spec, prefix):
        # No default Makefile bundled; edit the template.
        os.symlink('Makefile.template', 'Makefile')
        # The makefile uses stubborn assignments of = instead of ?= so
        # edit the makefile instead of using environmental variables.
        makefile = FileFilter('Makefile')
        if spec.satisfies('%gcc'):
            bin = 'Linux2_x86_64gfort_medium'
        elif spec.satisfies('%intel'):
            bin = 'Linux2_x86_64ifort_medium'
        elif spec.satisfies('%pg'):
            bin = 'Linux2_x86_64pg_medium'
        makefile.filter('^BIN.*', 'BIN = ' + bin)
        makefile.filter('^BASEDIR.*', 'BASEDIR = ' + self.build_directory)
        makefile.filter('^INSTALL.*', 'INSTALL = ' + prefix)
        makefile.filter('^BININST.*', 'BININST = ' + prefix.bin)
        makefile.filter('^LIBINST.*', 'LIBINST = ' + prefix.lib)
        # Compile m3tools with PIC, otherwise linking airs2m3 fails.
        flag = '-fPIE'
        env['LFLAGS'] = flag
        # Compile ioapi with PIC, otherwise linking airs2m3 fails.
        makeinclude = FileFilter(os.path.join('ioapi', 'Makeinclude.' + bin))
        makeinclude.filter('^(MFLAGS.*=)(.*)', r'\1 ' + flag + r'\2')
        makeinclude.filter('^(FOPTFLAGS.*)', r'\1 ' + flag)

    def install(self, spec, prefix):
        make('install')
        # Install the header files.
        mkdirp(prefix.include.fixed132)
        headers = glob.glob('ioapi/*.EXT')
        for header in headers:
            install(header, prefix.include)
        # Install the header files for CMAQ and SMOKE in the
        # non-standard -ffixed-line-length-132 format.
        headers_fixed132 = glob.glob('ioapi/fixed_src/*.EXT')
        for header in headers_fixed132:
            install(header, prefix.include.fixed132)