# -*- python -*-
# -*- coding: utf-8 -*-

from waflib import Logs, Options

def options(opt):
    grp = opt.get_option_group("Guitarix Widget Library")
    grp.add_option('--python-wrapper',
                   action='store_const',
                   default=False,
                   const=True,
                   help=('build python wrapper for library (Developers only!!)'),
                   )

def configure(conf):
    if not Options.options.python_wrapper:
        return
    conf.env.GX_PYTHON_WRAPPER = True
    conf.env.GXW_SHARED = True
    conf.env.GXW_SHARED_INSTALL = True
    conf.load('python')
    conf.check_python_headers(features='pyext')
    if conf.env.PYTHON_VERSION[0] != '3':
        raise conf.errors.WafError(
            'need Python version 3; please use "python3 waf configure ..."'
            ' or supply the executable path in environment variable PYTHON')
    conf.check_python_module("numpy")
    conf.check_cfg(package='pygobject-2.0', args='--cflags --libs', uselib_store='PYGOBJECT', mandatory=True)
    conf.check_cfg(package='pygobject-2.0', variables='codegendir', uselib_store='PYGOBJECT', mandatory=True, quiet=True)
    conf.check_cfg(package='pygtk-2.0', args='--cflags --libs', uselib_store='PYGTK', mandatory=True)
    conf.check_cfg(package='pygtk-2.0', variables='defsdir', uselib_store='PYGTK', mandatory=True, quiet=True)
    conf.check_cfg(package='gobject-introspection-1.0', mandatory=True)
    conf.find_program('g-ir-scanner', mandatory=True)
    conf.find_program('g-ir-compiler', mandatory=True)

def build(bld):
    if not bld.env.GX_PYTHON_WRAPPER:
        return
    bld.add_group()
    sources = ["GxTuner.h",
               "GxFastMeter.h",
               "GxWaveView.h",
               "GxRegler.h",
               "GxSelector.h",
               "GxSwitch.h",
               "GxToggleImage.h",
               "GxControlParameter.h",
               "GxIREdit.h",
               "GxRadioButton.h",
               "GxWheel.h",
               "GxWheelVertical.h",
               "GxKnob.h",
               "GxBigKnob.h",
               "GxSmallKnob.h",
               "GxSmallKnobR.h",
               "GxHSlider.h",
               "GxMiniSlider.h",
               "GxVSlider.h",
               "GxEQSlider.h",
               "GxLevelSlider.h",
               "GxPaintBox.h",
               "GxMeterScale.h",
               "GxValueDisplay.h",
               "GxRackTuner.h",
               ]
    glob = lambda n: bld.srcnode.ant_glob('libgxw/gxw/'+n)
    bld.env.LIBRARY='libgxw/gxw/libgxw.so'
    gir_name = "Gxw-0.1.gir"
    bld(name = 'gxw_gir',
        rule = (
            "g-ir-scanner --namespace=Gxw --nsversion=0.1 --library ${LIBRARY}"
	    "  --symbol-prefix=gx_ --symbol-prefix=gxw_ --identifier-prefix=Gx"
	    "  $(pkg-config gtk+-3.0 --cflags --libs)"
	    "  -Llibgxw/gxw -lgxw"
	    "  --include Gtk-3.0"
	    "  --output=${TGT}"
            "  ${SRC}"
            ),
        source = glob('gxinit.*')+glob('Gx*.cpp')+glob('Gx*.h'),
        target = gir_name,
        )
    bld(name = 'gxw_typelib',
        rule = 'g-ir-compiler ${SRC} --output=${TGT}',
        source = gir_name,
        target = gir_name.replace('.gir','.typelib'),
        )