# -*- python -*-

Decider('MD5')
import fnmatch
import os

vars = Variables()
vars.Add(BoolVariable('DEBUG', 'Set to disable optimizations', 1))
vars.Add(BoolVariable('PIC', 'Set to 1 for to always generate PIC code', 0))
env = Environment(variables = vars)
# env.Replace(CXX = "clang++") 

debug = env['DEBUG']
compile_options = {}
flags = []
if debug:
	#compile_options['CPPDEFINES'] = "-DDEBUG"
	flags.append("-O0 -g3 -ggdb -Wall")
else:
	flags.append("-Os -g3 -Wall")
if env['PIC']:
	flags.append("-fPIC")

flags.append("-Wextra -Werror")
# Can't enable unless we get rid of the dynamic variable length arrays
# flags.append("-pedantic")

compile_options['CXXFLAGS'] = ' '.join(flags)
compile_options['LINKFLAGS'] = "-ldl -L/usr/lib -L/opt/local/lib -L/usr/local/lib"

def all_files(dir, ext='.cpp', level=6):
	files = []
	for i in range(1, level):
		files += Glob(dir + ('/*' * i) + ext) 
	return files



magick_include = [
 '/usr/include/ImageMagick/',
 '/opt/local/include/ImageMagick/',
 '/usr/local/include/ImageMagick/'
]
magick_libs = ['Magick++', 'MagickWand', 'MagickCore']

# check for existence of libiconv and add it to magick_libs if possible
matches = []
for root, dirnames, filenames in os.walk('/usr/lib/'):
  for filename in fnmatch.filter(filenames, 'libiconv.*'):
      matches.append(os.path.join(root, filename))

if matches:
	magick_libs.append('iconv')

cppunit_include = ['/opt/local/include/']
cppunit_libs = ['cppunit']

zxing_files = all_files('core/src')

zxing_include = ['core/src']
zxing_libs = env.Library('zxing', source=zxing_files, CPPPATH=zxing_include, **compile_options)

app_files = ['magick/src/MagickBitmapSource.cpp', 'magick/src/main.cpp']
app_executable = env.Program('zxing', app_files, CPPPATH=magick_include + zxing_include, LIBS=zxing_libs + magick_libs, **compile_options)

test_files = all_files('core/tests/src')
test_executable = env.Program('testrunner', test_files, CPPPATH=zxing_include + cppunit_include, LIBS=zxing_libs + cppunit_libs, **compile_options)


Alias('lib', zxing_libs)
Alias('tests', test_executable)
Alias('zxing', app_executable)