#!/usr/bin/env python
import os
import sys

from waflib.extras import autowaf as autowaf
import waflib.Options as Options

# Version of this package (even if built as a child)
LV2CORE_VERSION = '4.1'

# Variables for 'waf dist'
APPNAME = 'lv2core'
VERSION = LV2CORE_VERSION

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

def options(opt):
    opt.add_option('--default-lv2-path', type='string', default='',
                   dest='default_lv2_path',
                   help="Default LV2 path to use if $LV2_PATH is unset")
    opt.add_option('--bundle-only', action='store_true', default=False,
                   dest='bundle_only',
                   help="Only install LV2 bundle (not header or pkg-config file)")
    autowaf.set_options(opt)

def configure(conf):
    autowaf.configure(conf)
    lv2core_path_sep = ':'
    lv2core_dir_sep  = '/'
    if sys.platform == 'win32':
        lv2core_path_sep = ';'
        lv2core_dir_sep = '\\\\'

    autowaf.define(conf, 'LV2CORE_PATH_SEP', lv2core_path_sep)
    autowaf.define(conf, 'LV2CORE_DIR_SEP',  lv2core_dir_sep)

    if Options.options.default_lv2_path == '':
        if Options.platform == 'darwin':
            Options.options.default_lv2_path = lv2core_path_sep.join([
                    '~/Library/Audio/Plug-Ins/LV2',
                    '~/.lv2',
                    '/usr/local/lib/lv2',
                    '/usr/lib/lv2',
                    '/Library/Audio/Plug-Ins/LV2'])
        elif Options.platform == 'haiku':
            Options.options.default_lv2_path = lv2core_path_sep.join([
                '~/.lv2',
                '/boot/common/add-ons/lv2'])
        elif Options.platform == 'win32':
            Options.options.default_lv2_path = 'C:\\\\Program Files\\\\LV2'
        else:
            libdirname = os.path.basename(conf.env['LIBDIR'])
            Options.options.default_lv2_path = lv2core_path_sep.join([
                    '~/.lv2',
                    '/usr/%s/lv2' % libdirname,
                    '/usr/local/%s/lv2' % libdirname])

    autowaf.define(conf, 'LV2CORE_DEFAULT_LV2_PATH', Options.options.default_lv2_path)

    conf.check(function_name='wordexp',
               header_name='wordexp.h',
               define_name='HAVE_WORDEXP',
               mandatory=False)

    conf.write_config_header('lv2-config.h', remove=False)

    autowaf.display_msg(conf, "Path expansion via wordexp",
                        conf.is_defined('HAVE_WORDEXP'))
    autowaf.display_msg(conf, "Default LV2_PATH",
                        conf.env['LV2CORE_DEFAULT_LV2_PATH'])
    autowaf.display_msg(conf, "LV2 bundle directory",
                        conf.env['LV2DIR'])
    print('')

def build(bld):
    # Header "library"
    obj = bld(export_includes = ['.'],
              name            = 'liblv2core',
              target          = 'lv2core')

    if not Options.options.bundle_only:
        # Header
        bld.install_files('${INCLUDEDIR}', 'lv2.h')
        bld.install_files('${LV2DIR}/lv2core.lv2', 'lv2.h')

        # Pkgconfig file
        autowaf.build_pc(bld, 'LV2CORE', LV2CORE_VERSION, '', [])

    # Bundle (data)
    bld.install_files('${LV2DIR}/lv2core.lv2', 'lv2.ttl manifest.ttl')

    # lv2config program
    obj = bld(features     = 'c cprogram',
              source       = 'lv2config.c serd-0.1.0.c',
              target       = 'lv2config',
              install_path = '${BINDIR}',
              cflags       = ['-std=c99', '-U__STRICT_ANSI__'])

    # Man page
    bld.install_files('${MANDIR}/man1', 'lv2config.1')

def dist():
    import Scripting
    Scripting.g_gz = 'gz'
    Scripting.dist()