#! /usr/bin/env python
# encoding: utf-8

from waflib.Logs import pprint

top = '.'
out = 'build'

def options(opt):
	opt.load('compiler_c')

def configure(conf):
	conf.load('compiler_c')

	conf.failure = 0
	def disp(color, result):
		pprint(color, result)
		if color == 'RED':
			conf.failure=1

	png_args = {'package': 'libpng', #'define_name': 'HAVE_LIBPNG',
		'args': ['--libs', '--cflags'],
		'uselib_store': 'LIBPNG'}

	std_args = {'header_name': 'unistd.h', #'define_name':'HAVE_UNISTD',
		'uselib_store': 'UNISTD'}

	def test(*funs):
		conf.env.stash()
		conf.in_msg = 1 # suppress outputs
		for f in funs:
			ret = f()
			if not ret:
				color = "GREEN"
			else:
				color = "RED"
			if not ret:
				ret = 'ok'
			disp(color, "%s\t\t%s" % (f.__doc__, ret))
		conf.env.revert()
		conf.in_msg = 0
		return None

	@test
	def fun1():
		"global_define=1 by default -> no DEFINES_X anywhere"
		conf.check_cfg(package='libpng')
		conf.check_cc(header_name='unistd.h')
		for x in conf.env.keys():
			if x.startswith('DEFINES_') and x != 'DEFINES_ST':
				return 'conf.env.%s = %r' % (x, conf.env[x])

	@test
	def fun2():
		"global_define=1 -> no DEFINES_X anywhere"
		conf.check_cfg(package='libpng', global_define=1)
		conf.check_cc(header_name='unistd.h', global_define=1)
		for x in conf.env.keys():
			if x.startswith('DEFINES_') and x != 'DEFINES_ST':
				return 'conf.env.%s = %r' % (x, conf.env[x])

	@test
	def fun3():
		"global_define=0 -> DEFINES=[]"
		conf.check_cfg(package='libpng', global_define=0)
		conf.check_cc(header_name='unistd.h', global_define=0)
		if conf.env.DEFINES:
			return 'conf.env.DEFINES = %r' % conf.env.DEFINES

	@test
	def fun4():
		"global_define=0 -> DEFINES_LIBPNG=['HAVE_LIBPNG=1']"
		conf.check_cfg(package='libpng', global_define=0)
		val = conf.env.DEFINES_LIBPNG
		if not isinstance(val, list) or not "HAVE_LIBPNG=1" in val:
			return 'conf.env.DEFINES_LIBPNG = %r' % val

	@test
	def fun5():
		"global_defines=0, uselib_store=UNISTD -> DEFINES_UNISTD=['HAVE_UNISTD_H=1']"
		conf.check_cc(header_name='unistd.h', uselib_store='UNISTD', global_define=0)
		val = conf.env.DEFINES_UNISTD
		if not isinstance(val, list) or not 'HAVE_UNISTD_H=1' in val:
			return 'conf.env.DEFINES_UNISTD = %r' % val

	@test
	def fun5():
		"global_defines=0, uselib_store=UNISTD, define_name=FOO -> DEFINES_UNISTD=['FOO=1']"
		conf.check_cc(header_name='unistd.h', uselib_store='UNISTD', global_define=0, define_name='FOO')
		val = conf.env.DEFINES_UNISTD
		if not isinstance(val, list) or not 'FOO=1' in val:
			return 'conf.env.DEFINES_UNISTD = %r' % val

	@test
	def fun6():
		"global_defines=0,define_name=HAVE_FOO -> DEFINES_LIBPNG=['HAVE_FOO=1']"
		conf.check_cfg(package='libpng', global_define=0, define_name='HAVE_FOO')
		val = conf.env.DEFINES_LIBPNG
		if not isinstance(val, list) or not "HAVE_FOO=1" in val:
			return 'conf.env.DEFINES_LIBPNG = %r' % val

	@test
	def modversion1():
		"modversion=libpng -> DEFINES=['LIBPNG_VERSION=X']"
		conf.check_cfg(modversion='libpng')
		val = conf.env.DEFINES
		# automatic uppercase
		if not isinstance(val, list) or not val[0].startswith("LIBPNG_VERSION="):
			return 'conf.env.DEFINES = %r' % val

	@test
	def modversion2():
		"modversion=libpng,uselib_store=foo -> DEFINES=['FOO_VERSION=X']"
		conf.check_cfg(modversion='libpng', uselib_store='foo')
		val = conf.env.DEFINES
		# automatic uppercase
		if not isinstance(val, list) or not val[0].startswith("FOO_VERSION="):
			return 'conf.env.DEFINES = %r' % val

	@test
	def modversion3():
		"modversion=libpng,uselib_store=foo,define_name=bar -> DEFINES=['bar=X']"
		conf.check_cfg(modversion='libpng', uselib_store='foo', define_name='bar')
		val = conf.env.DEFINES
		if not isinstance(val, list) or not val[0].startswith("bar="):
			return 'conf.env.DEFINES = %r' % val

	@test
	def atleast_version():
		"atleast_version=1.0,uselib_store=foo -> DEFINES=['HAVE_FOO=1']"
		conf.check_cfg(package='libpng', uselib_store='foo', atleast_version='1.0', args='--libs --cflags')
		val = conf.env.DEFINES
		if not isinstance(val, list) or not 'HAVE_FOO=1' in val:
			return 'conf.env.DEFINES = %r' % val
		if not conf.env.LIB_foo:
			return 'expected conf.env.LIB_foo to be defined :-/'

	if conf.failure:
		conf.fatal('One or several test failed, check the outputs above')