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# Copyright 2013-2022 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)

from spack import *


class Cnvnator(MakefilePackage):
    """A tool for CNV discovery and genotyping
    from depth-of-coverage by mapped reads."""

    homepage = "https://github.com/abyzovlab/CNVnator"
    url      = "https://github.com/abyzovlab/CNVnator/archive/v0.3.3.tar.gz"

    version('0.3.3', sha256='58c5acf61f9a1e5febf546c196f8917a5e084b729e5c4cfd3eba83471b3fe5c1')

    depends_on('samtools@:1.13')
    depends_on('htslib')
    depends_on('root')
    depends_on('bzip2')
    depends_on('curl')
    depends_on('xz')
    depends_on('zlib')
    depends_on('libdeflate')
    depends_on('openssl')

    def edit(self, spec, prefix):
        makefile = FileFilter('Makefile')
        # Replace -fopenmp with self.compiler.openmp_flag
        makefile.filter('-fopenmp', self.compiler.openmp_flag)
        # Replace CXX with CXXFLAGS
        makefile.filter('CXX.*=.*',
                        r'CXXFLAGS = -DCNVNATOR_VERSION=\"$(VERSION)\"'
                        ' $(OMPFLAGS)'
                        ' {0}'.format(self.compiler.cxx11_flag))
        makefile.filter('$(CXX)', '$(CXX) $(CXXFLAGS)', string=True)
        # Replace -I$(SAMDIR) with -I$(SAMINC)
        makefile.filter('-I$(SAMDIR)', '-I$(SAMINC)', string=True)

        # Link more libs
        ldflags = [
            spec['zlib'].libs.ld_flags,
            spec['bzip2'].libs.ld_flags,
            spec['curl'].libs.ld_flags,
            spec['xz'].libs.ld_flags,
            spec['libdeflate'].libs.ld_flags,
            spec['openssl'].libs.ld_flags,
        ]
        makefile.filter('^override LIBS.*',
                        'override LIBS += {0}'.format(' '.join(ldflags)))

    def build(self, spec, prefix):
        make('ROOTSYS={0}'.format(spec['root'].prefix),
             'SAMINC={0}'.format(spec['samtools'].prefix.include),
             'SAMDIR={0}'.format(spec['samtools'].prefix.lib),
             'HTSDIR={0}'.format(spec['htslib'].prefix.lib))

    def install(self, spec, prefix):
        mkdir(prefix.bin)
        install('cnvnator', prefix.bin)