#!/usr/bin/env python
from waflib.extras import autowaf as autowaf
import glob
import os

# Version of this package (even if built as a child)
LIBTAGLIB_VERSION = '0.0.0'

# Library version (UNIX style major, minor, micro)
# major increment <=> incompatible changes
# minor increment <=> compatible changes (additions)
# micro increment <=> no interface changes
LIBTAGLIB_LIB_VERSION = '0.0.0'

# Variables for 'waf dist'
APPNAME = 'libtaglib'
VERSION = LIBTAGLIB_VERSION

# Mandatory variables
top = '.'
out = 'build'

def options(opt):
    autowaf.set_options(opt)

def configure(conf):
    if conf.is_defined('USE_EXTERNAL_LIBS'):
        autowaf.check_pkg(conf, 'taglib', uselib_store='TAGLIB', atleast_version="1.4", mandatory=True)
    else:
        conf.load('compiler_cxx')
        autowaf.configure(conf)

def build(bld):
    if bld.is_defined('USE_EXTERNAL_LIBS'):
        return

    # the story: taglib distributes its headers all over the place then copies them
    # into place during an install. but we're not planning to do an install. so this
    # doesn't work when code does #include <taglib/foo.h>. 
    #
    # one approach is to store symlinks in the repository. but this breaks on windows
    # where symlink support and git are not very well developed (if at all)
    #
    # the approach here is to copy the header files as part of the build step, if necessary
    
    headers = [
        './ape/apefooter.h',
        './ape/apeitem.h',
        './ape/apetag.h',
        './mpeg/id3v2/frames/attachedpictureframe.h',
        './mpeg/id3v2/frames/commentsframe.h',
        './flac/flacfile.h',
        './flac/flacproperties.h',
        './mpeg/id3v2/frames/generalencapsulatedobjectframe.h',
        './mpeg/id3v1/id3v1genres.h',
        './mpeg/id3v1/id3v1tag.h',
        './mpeg/id3v2/id3v2extendedheader.h',
        './mpeg/id3v2/id3v2footer.h',
        './mpeg/id3v2/id3v2framefactory.h',
        './mpeg/id3v2/id3v2frame.h',
        './mpeg/id3v2/id3v2header.h',
        './mpeg/id3v2/id3v2synchdata.h',
        './mpeg/id3v2/id3v2tag.h',
        './mpc/mpcfile.h',
        './mpc/mpcproperties.h',
        './mpeg/mpegfile.h',
        './mpeg/mpegheader.h',
        './mpeg/mpegproperties.h',
        './ogg/oggfile.h',
        './ogg/flac/oggflacfile.h',
        './ogg/oggpage.h',
        './ogg/oggpageheader.h',
        './mpeg/id3v2/frames/relativevolumeframe.h',
        './ogg/speex/speexfile.h',
        './ogg/speex/speexproperties.h',
        './toolkit/taglib.h',
        './toolkit/tbytevector.h',
        './toolkit/tbytevectorlist.h',
        './toolkit/tdebug.h',
        './mpeg/id3v2/frames/textidentificationframe.h',
        './toolkit/tfile.h',
        './toolkit/tlist.h',
        'toolkit/tlist.tcc',
        './toolkit/tmap.h',
        'toolkit/tmap.tcc',
        './trueaudio/trueaudiofile.h',
        './trueaudio/trueaudioproperties.h',
        './toolkit/tstring.h',
        './toolkit/tstringlist.h',
        './toolkit/unicode.h',
        './mpeg/id3v2/frames/uniquefileidentifierframe.h',
        './mpeg/id3v2/frames/unknownframe.h',
        './mpeg/id3v2/frames/unsynchronizedlyricsframe.h',
        './mpeg/id3v2/frames/urllinkframe.h',
        './ogg/vorbis/vorbisfile.h',
        './ogg/vorbis/vorbisproperties.h',
        './wavpack/wavpackfile.h',
        './wavpack/wavpackproperties.h',
        './mpeg/xingheader.h',
        './ogg/xiphcomment.h',
        ]

    for h in headers:
        tgt = bld.path.get_bld().make_node (os.path.join ('taglib', os.path.basename (h)))
        if not os.path.exists (tgt.bldpath()):
            bld (rule = autowaf.copyfile,
                 source = bld.path.make_node (os.path.join ('taglib', h)),
                 target = tgt)

    # Library
    obj = bld(features = 'cxx cxxshlib')
    sources = bld.path.ant_glob('taglib/*.cpp')
    sources += bld.path.ant_glob('taglib/flac/*.cpp')
    sources += bld.path.ant_glob('taglib/mpc/*.cpp')
    sources += bld.path.ant_glob('taglib/mpeg/*.cpp')
    sources += bld.path.ant_glob('taglib/mpeg/id3v1/*.cpp')
    sources += bld.path.ant_glob('taglib/mpeg/id3v2/*.cpp')
    sources += bld.path.ant_glob('taglib/mpeg/id3v2/frames/*.cpp')
    sources += bld.path.ant_glob('taglib/ogg/*.cpp')
    sources += bld.path.ant_glob('taglib/ogg/vorbis/*.cpp')
    sources += bld.path.ant_glob('taglib/ogg/speex/*.cpp')
    sources += bld.path.ant_glob('taglib/ogg/flac/*.cpp')
    sources += bld.path.ant_glob('taglib/trueaudio/*.cpp')
    sources += bld.path.ant_glob('taglib/wavpack/*.cpp')
    sources += bld.path.ant_glob('taglib/ape/*.cpp')
    sources += bld.path.ant_glob('taglib/toolkit/*.cpp')
    obj.source = sources

    include_dirs = '''
            taglib
            taglib/toolkit
            taglib/flac
            taglib/ape
            taglib/mpc
            taglib/mpeg
            taglib/mpeg/id3v1
            taglib/mpeg/id3v2
            taglib/wavpack
            taglib/trueaudio
            taglib/ogg
            taglib/ogg/vorbis
            taglib/ogg/speex
            taglib/ogg/flac
    '''.split()
    obj.export_includes = ['.', 'taglib' ]
    obj.includes     = include_dirs
    obj.defines      = ['MAKE_TAGLIB_LIB']
    obj.name         = 'libtaglib'
    obj.target       = 'taglib'
    obj.vnum         = LIBTAGLIB_LIB_VERSION
    obj.install_path = os.path.join(bld.env['LIBDIR'], 'ardour3')

def shutdown():
    autowaf.shutdown()