#!/usr/bin/env python

import os

Import('envGPUgeo2rdr')
package = envGPUgeo2rdr['PACKAGE'] 
project = envGPUgeo2rdr['PROJECT']
install = envGPUgeo2rdr['PRJ_SCONS_INSTALL'] + '/' + package + '/' + project
build = envGPUgeo2rdr['PRJ_SCONS_BUILD'] + '/' + package + '/' + project + '/src'

if envGPUgeo2rdr['GPU_ACC_ENABLED']:
    envGPUgeo2rdr.AppendUnique(CPPPATH=envGPUgeo2rdr['CUDACPPPATH'])
    envGPUgeo2rdr.AppendUnique(LIBPATH=envGPUgeo2rdr['CUDALIBPATH'])
    envGPUgeo2rdr.AppendUnique(LIBS=['cuda','cudart'])


###Custom cython builder
cythonBuilder = Builder(action = 'cython3 $SOURCE --cplus',
                        suffix = '.cpp',
                        src_suffix = '.pyx')
envGPUgeo2rdr.Append(BUILDERS = {'Pyx2Cpp':cythonBuilder})

def cythonPseudoBuilder(env,source,bld,inst):
    cppCode = env.Pyx2Cpp(source)
    listFiles = [source+'.cpp', 'Ellipsoid.cpp', 'Geo2rdr.cpp', 'GeoController.cpp', 'LinAlg.cpp', 'Orbit.cpp', 'Poly1d.cpp']
    env.MergeFlags('-fopenmp -O3 -std=c++11 -fPIC -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -Wall -Wstrict-prototypes')
    
    if (env['GPU_ACC_ENABLED']):
        listFiles.append('GPUgeo.cu')
        lib = env.LoadableModule(target = 'GPUgeo2rdr.abi3.so', source = listFiles, CPPDEFINES = 'GPU_ACC_ENABLED')
    else:
        lib = env.LoadableModule(target = 'GPUgeo2rdr.abi3.so', source = listFiles)
    env.Install(inst,lib)
    env.Alias('install',inst)


envGPUgeo2rdr.AddMethod(cythonPseudoBuilder,'Cython')
envGPUgeo2rdr.Cython('GPUgeo2rdr',build,install)