#!/usr/bin/env python
from waflib.extras import autowaf as autowaf
from waflib import Options
import os
import sys
import re

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

def backend_list():
    if Options.options.program_name == 'Ardour':
        # Ardour
        backends = [ 'jack' ]

        if Options.options.build_dummy: 
            backends += [ 'dummy' ]

        if Options.options.build_alsabackend:
                if re.search ("linux", sys.platform) != None:
                    backends += [ 'alsa' ]

    else:
        # Not Ardour
        if re.search ("linux", sys.platform) != None:
            # Can't build this till the ALSA backend is merged because of a dependency (on Linux) on a shared utility library
            # created for the ALSA backend and JACK.
            # backends = [ 'jack' ]
            backends = [ ]
        else:
            backends = [ ]

    if sys.platform == 'darwin' or sys.platform == 'mingw' or sys.platform == 'msvc':
        backends += [ 'wavesaudio' ]

    return backends

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

def sub_config_and_use(conf, name, has_objects = True):
    conf.recurse(name)
    autowaf.set_local_lib(conf, name, has_objects)

def configure(conf):
    autowaf.set_recursive()
    autowaf.configure(conf)

    backends = backend_list()
    conf.env['BACKENDS'] = backends
    
    for i in backends:
        sub_config_and_use(conf, i)

def build(bld):
    backends = bld.env['BACKENDS']

    for i in backends:
        bld.recurse(i)