# version
set(TRIQS_VERSION @TRIQS_VERSION@)
set(TRIQS_RELEASE @TRIQS_RELEASE@)
set(TRIQS_GIT_HASH @TRIQS_GIT_HASH@)

# definitions 
set(TRIQS_CXX_DEFINITIONS @TRIQS_CXX_DEFINITIONS@)

# Includes
set(TRIQS_INCLUDE @CMAKE_INSTALL_PREFIX@/include)

set(TRIQS_INCLUDE_BOOST   @BOOST_INCLUDE_DIR@)
set(TRIQS_INCLUDE_MPI     @TRIQS_INCLUDE_MPI@)
set(TRIQS_INCLUDE_PYTHON  @TRIQS_INCLUDE_PYTHON@)
set(TRIQS_INCLUDE_HDF5    @TRIQS_INCLUDE_HDF5@)
set(TRIQS_INCLUDE_FFTW    @TRIQS_INCLUDE_FFTW@)
set(TRIQS_INCLUDE_GMP     @TRIQS_INCLUDE_GMP@)
set(TRIQS_INCLUDE_GSL     @GSL_INCLUDE_DIR@)

# Libraries
set(TRIQS_LIBRARY -L@CMAKE_INSTALL_PREFIX@/lib -ltriqs)  

set(TRIQS_LIBRARY_BOOST   @BOOST_LIBRARY@)
set(TRIQS_LIBRARY_MPI     @TRIQS_LIBRARY_MPI@)
set(TRIQS_LIBRARY_PYTHON  @TRIQS_LIBRARY_PYTHON@)
set(TRIQS_LIBRARY_HDF5    @TRIQS_LIBRARY_HDF5@)
set(TRIQS_LIBRARY_LAPACK  @TRIQS_LIBRARY_LAPACK@)
set(TRIQS_LIBRARY_FFTW    @TRIQS_LIBRARY_FFTW@)
set(TRIQS_LIBRARY_GMP     @TRIQS_LIBRARY_GMP@)
set(TRIQS_LIBRARY_GSL     @GSL_LIBRARIES@)

# Misc
set(TRIQS_WITH_PYTHON_SUPPORT @TRIQS_WITH_PYTHON_SUPPORT@)
set(TRIQS_HDF5_DIFF_EXECUTABLE @TRIQS_HDF5_DIFF_EXECUTABLE@)
set(TRIQS_PYTHON_LIB_DEST @TRIQS_PYTHON_LIB_DEST@)
set(TRIQS_COMPILER_IS_C11_COMPLIANT @TRIQS_COMPILER_IS_C11_COMPLIANT@)

# Documentation
set(TRIQS_WITH_DOCUMENTATION @Build_Documentation@)
set(TRIQS_SPHINXBUILD_EXECUTABLE @SPHINXBUILD_EXECUTABLE@)
set(TRIQS_THEMES_PATH @CMAKE_INSTALL_PREFIX@/share/triqs/themes)
set(TRIQS_MATHJAX_PATH @MATHJAX_PATH@)

# for people who want to quickly add everything TRIQS has detected...
set(TRIQS_LIBRARY_ALL ${TRIQS_LIBRARY} ${TRIQS_LIBRARY_BOOST} ${TRIQS_LIBRARY_PYTHON} ${TRIQS_LIBRARY_MPI} ${TRIQS_LIBRARY_HDF5} ${TRIQS_LIBRARY_LAPACK} ${TRIQS_LIBRARY_FFTW} ${TRIQS_LIBRARY_GMP} ${TRIQS_LIBRARY_GSL} )
set(TRIQS_INCLUDE_ALL ${TRIQS_INCLUDE} ${TRIQS_INCLUDE_BOOST} ${TRIQS_INCLUDE_PYTHON} ${TRIQS_INCLUDE_MPI} ${TRIQS_INCLUDE_HDF5} ${TRIQS_INCLUDE_LAPACK} ${TRIQS_INCLUDE_FFTW} ${TRIQS_INCLUDE_GMP} ${TRIQS_INCLUDE_GSL} )
list (REMOVE_DUPLICATES TRIQS_INCLUDE_ALL)

# Python specific stuff
set (TRIQS_PYTHON_INTERPRETER @PYTHON_INTERPRETER@)
 
message(STATUS "TRIQS : Adding C++11 compilation flags -std=c++11 ")
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x ")
#add_definitions( -std=c++0x) 

# Check compiler
if (NOT CMAKE_CXX_COMPILER STREQUAL "@CMAKE_CXX_COMPILER@" )
 message(FATAL_ERROR "For your own safety, you should use the same compiler as the one used to compile TRIQS !")
endif()

if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
  set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ ")
  message(STATUS "TRIQS : Adding C++11 compilation flags for Os X:  -stdlib=libc++ ")
 else ()
  message( WARNING "${line_of_star}You are on Os X but your are not using clang. This is NOT recommended...${line_of_star}") 
 endif ()
endif( ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")

# This function add the target to build a python module
#
# NickName =  
# ModuleName = the python name of the module 
# ModuleDest = path in the pytriqs tree [ FOR INSTALLATION ONLY] IMPROVE MAKE THIS OPTIONAL (for test) 
macro (triqs_cython_module NickName ModuleName)
 message(STATUS "TRIQS: Preparing cython module ${NickName} with the interpreter ${TRIQS_PYTHON_INTERPRETER} ")
 get_filename_component(CYTHON_EXECUTABLE_PATH ${TRIQS_PYTHON_INTERPRETER} PATH)
 set(CYTHON_EXECUTABLE ${CYTHON_EXECUTABLE_PATH}/cython CACHE STRING "Path to the cython executable")
 set(cython_src ${CMAKE_CURRENT_SOURCE_DIR}/${ModuleName}.pyx )
 FILE(GLOB all_pyx_src RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.pyx *.pxd )
 set(cython_wrap  ${CMAKE_CURRENT_BINARY_DIR}/wrap_${NickName}_by_cython.cpp)
 add_custom_command (OUTPUT ${cython_wrap} DEPENDS ${all_pyx_src} COMMAND ${CYTHON_EXECUTABLE} ${cython_src} -I ${CMAKE_CURRENT_SOURCE_DIR}/ -I@CMAKE_INSTALL_PREFIX@/include/pytriqs/  -I@CMAKE_INSTALL_PREFIX@/include/ -X embedsignature=True --cplus -o ${cython_wrap}  )
 add_custom_target(cython_${NickName} ALL DEPENDS ${cython_wrap})

 add_library(${ModuleName} MODULE ${cython_wrap}  )
 set_target_properties(${ModuleName}  PROPERTIES PREFIX "") #eliminate the lib in front of the module name 
 target_link_libraries(${ModuleName} ${TRIQS_LINK_LIBS} triqs)
 if (${ARGN} MATCHES "")
   install (TARGETS ${ModuleName} DESTINATION @TRIQS_PYTHON_LIB_DEST@/${ARGN}  )
 endif (${ARGN} MATCHES "")
 set_property (GLOBAL APPEND PROPERTY DEPENDANCE_TO_ADD triqs_${NickName} )

endmacro (triqs_cython_module)


# Also duplicate from the FindTriqsMacro.... ? Include ?
macro (triqs_add_all_subdirectories_with_cmakelist)
 SET( print_decal_sub_dir "${print_decal_sub_dir}  ")
 FILE(GLOB ALLSUBS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} */CMakeLists.txt)
 foreach ( f ${ALLSUBS})
  get_filename_component(d ${f} PATH)
  #MESSAGE(STATUS "${print_decal_sub_dir}## Including subdirectory :  ${d}")    
  add_subdirectory(${d})
 endforeach ( f ${ALLSUBS}) 
endmacro (triqs_add_all_subdirectories_with_cmakelist)

# RPATH setting 
macro (triqs_set_rpath_for_target Target)
 set_target_properties(${Target} PROPERTIES LINK_FLAGS -Wl,-rpath,${CMAKE_INSTALL_PREFIX}/lib)
 set_target_properties(${Target} PROPERTIES INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib)
 set_target_properties(${Target} PROPERTIES INSTALL_RPATH ${CMAKE_INSTALL_PREFIX}/lib)
 set_target_properties(${Target} PROPERTIES INSTALL_RPATH_USE_LINK_PATH TRUE)
 set_target_properties(${Target} PROPERTIES BUILD_WITH_INSTALL_RPATH FALSE)
 set_target_properties(${Target} PROPERTIES SKIP_BUILD_RPATH FALSE)
 set_target_properties(${Target} PROPERTIES SKIP_INSTALL_RPATH FALSE)
endmacro()

# A macro to create a local copy of triqs with the added python
macro (triqs_prepare_local_pytriqs_merged_with_my_python python_destination)

file(WRITE ${CMAKE_BINARY_DIR}/build_pytriqs
"#!/bin/bash
export PYTHONPATH=${CMAKE_BINARY_DIR}:$PYTHONPATH
${TRIQS_PYTHON_INTERPRETER} $@"
)
execute_process(COMMAND chmod 755 ${CMAKE_BINARY_DIR}/build_pytriqs)

execute_process(COMMAND ${CMAKE_COMMAND} -E chdir ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}
                        find . -type d -exec mkdir -p ${CMAKE_BINARY_DIR}/pytriqs/{} \;)
execute_process(COMMAND ${CMAKE_COMMAND} -E chdir ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}
                        find . -type f -exec ln -snf ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}/{} ${CMAKE_BINARY_DIR}/pytriqs/{} \;)
execute_process(COMMAND ${CMAKE_COMMAND} -E chdir ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}
                        find . -type l -exec ln -snf ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}/{} ${CMAKE_BINARY_DIR}/pytriqs/{} \;)

# Create directories where python files will go and make sure there is an __init__.py all the way
execute_process(COMMAND mkdir -p ${CMAKE_BINARY_DIR}/pytriqs/${python_destination})

# Copy and install __init__.py files
file(WRITE ${CMAKE_BINARY_DIR}/.python/__init__.py  "__all__=[]")
set(partial_dir ${python_destination})
while(partial_dir MATCHES "/")
  string(REGEX REPLACE "/[^/]*$" "" partial_dir ${partial_dir})
  if(NOT EXISTS ${CMAKE_BINARY_DIR}/pytriqs/${partial_dir}/__init__.py)
    execute_process(COMMAND cp ${CMAKE_BINARY_DIR}/.python/__init__.py ${CMAKE_BINARY_DIR}/pytriqs/${partial_dir})
    install(FILES ${CMAKE_BINARY_DIR}/.python/__init__.py DESTINATION ${TRIQS_PYTHON_LIB_DEST}/${partial_dir})
  endif(NOT EXISTS ${CMAKE_BINARY_DIR}/pytriqs/${partial_dir}/__init__.py)
endwhile(partial_dir MATCHES "/")

# Install all other files
install(DIRECTORY ${CMAKE_SOURCE_DIR}/python/ DESTINATION ${TRIQS_PYTHON_LIB_DEST}/${python_destination} FILES_MATCHING PATTERN *.py)

# Set a rule to have original python files copied to their destination if modified
FILE(GLOB_RECURSE python_sources RELATIVE ${CMAKE_SOURCE_DIR}/python *.py)
SET(py_copy_tar ${CMAKE_BINARY_DIR}/py_copy.tar)
add_custom_command (OUTPUT ${py_copy_tar} DEPENDS ${python_sources}
 COMMAND cd ${CMAKE_SOURCE_DIR}/python && tar cf ${py_copy_tar} ${python_sources} &&
         cd ${CMAKE_BINARY_DIR}/pytriqs/${python_destination} && tar xf ${py_copy_tar})
add_custom_target(py_copy ALL DEPENDS ${py_copy_tar})

endmacro()


#
# This macro builds the f2py module
#   - target_name
#   - 
#
macro (triqs_build_f2py_module target_name modulename module_pyf_name filelist1)

 set(filelist ${filelist1}  ${ARGN})
 set(filename temp_script.py)
 # Copy all the files
 EXECUTE_PROCESS(COMMAND cp ${CMAKE_CURRENT_SOURCE_DIR}/${module_pyf_name} ${CMAKE_CURRENT_BINARY_DIR} )
 FOREACH( f ${filelist})
  EXECUTE_PROCESS(COMMAND cp ${CMAKE_CURRENT_SOURCE_DIR}/${f} ${CMAKE_CURRENT_BINARY_DIR} )
 ENDFOREACH(f)
 # write the script that will build the f2py extension
 SET(filename ${CMAKE_CURRENT_BINARY_DIR}/${filename} )
 FILE(WRITE ${filename} "import sys\n")
 FILE(APPEND ${filename} "from numpy.f2py import main\n")
 FILE(APPEND ${filename} "sys.argv = [''] +'-c --f77exec=${CMAKE_Fortran_COMPILER} --f90exec=${CMAKE_Fortran_COMPILER} -m ${modulename} ${modulename}.pyf ${filelist} -llapack'.split()\n")
 FILE(APPEND ${filename} "main()\n")

 # We had the normal target of the module
 add_custom_target(${target_name} ALL DEPENDS ${modulename}.so) 

 # TODO : to be corrected with the filelist is more than one file.
 # ... and a special target to build vertex.so, that depends on the sources files
 add_custom_command(OUTPUT  ${modulename}.so 
  COMMAND echo See `pwd`/f2pyBuild.log for logs
  COMMAND ${TRIQS_PYTHON_INTERPRETER} temp_script.py > f2pyBuild.log 2>&1
  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${filelist} ${CMAKE_CURRENT_SOURCE_DIR}/${module_pyf_name} 
  )

 #FILE(RELATIVE_PATH rel ${CMAKE_SOURCE_DIR}/Modules ${CMAKE_CURRENT_SOURCE_DIR}/)
 #install (FILES ${CMAKE_CURRENT_BINARY_DIR}/${modulename}.so
 # DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/${ExecutableName}/triqs/${rel}/..)

endmacro (triqs_build_f2py_module)

macro (triqs_make_target_to_copy_all_py_files_from_python_dir_to_build_dir)
FILE(GLOB_RECURSE all_py_files RELATIVE ${CMAKE_SOURCE_DIR}/python *.py )
SET(py_copy_tar  ${CMAKE_BINARY_DIR}/py_copy.tar)
add_custom_command (OUTPUT ${py_copy_tar} DEPENDS ${all_py_files}
 COMMAND cd ${CMAKE_SOURCE_DIR}/python && tar cf ${py_copy_tar} ${all_py_files} && mkdir -p ${CMAKE_BINARY_DIR}/python && cd ${CMAKE_BINARY_DIR}/python && tar xf ${py_copy_tar} )
add_custom_target(py_copy ALL DEPENDS ${py_copy_tar})
endmacro()