# 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   @TRIQS_INCLUDE_BOOST@)
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   @TRIQS_LIBRARY_BOOST@)
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@)

# for people who want to quickly add everything TRIQS has detected...
set(TRIQS_LIBRARY_ALL ${TRIQS_LIBRARY} @TRIQS_LIBRARY_ALL@)
set(TRIQS_INCLUDE_ALL ${TRIQS_INCLUDE} @TRIQS_INCLUDE_ALL@)

# 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@)

# Git
set(TRIQS_GIT_EXECUTABLE @GIT_EXECUTABLE@)
macro(triqs_get_git_hash DIR PREFIX)
 execute_process(COMMAND @GIT_EXECUTABLE@ rev-parse HEAD
  WORKING_DIRECTORY "${DIR}"
  RESULT_VARIABLE   GIT_RESULT
  OUTPUT_VARIABLE   "${PREFIX}_GIT_HASH"
  ERROR_VARIABLE    GIT_ERROR
  OUTPUT_STRIP_TRAILING_WHITESPACE)
endmacro(triqs_get_git_hash)

# Python specific stuff
set (TRIQS_PYTHON_INTERPRETER @PYTHON_INTERPRETER@)
 
message(STATUS "TRIQS : Adding compilation flags detected by the library (C++11/14, libc++, etc...) ")
add_definitions(${TRIQS_CXX_DEFINITIONS})
#set( CMAKE_CXX_FLAGS "${TRIQS_CXX_DEFINITIONS} ${CMAKE_CXX_FLAGS} ")
#message(STATUS "TRIQS : Adding C++11 compilation flags -std=c++11 ")
#set( CMAKE_CXX_FLAGS "${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 "${CMAKE_CXX_FLAGS} -stdlib=libc++ ")
  message(STATUS "TRIQS : Adding C++11/14 compilation flags for Os X:  -stdlib=libc++ ")
 else ()
  message( WARNING "${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
macro (triqs_python_extension ModuleName)
 message(STATUS "Preparing extension module ${ModuleName}")

 EXECUTE_PROCESS(COMMAND mkdir -p ${CMAKE_BINARY_DIR}/include/pytriqs/converters/)

 SET(wrap_name  ${CMAKE_CURRENT_BINARY_DIR}/${ModuleName}_wrap.cpp)
 SET(converter_name  ${CMAKE_BINARY_DIR}/include/pytriqs/converters/${ModuleName}.hpp)

 # Adjust pythonpath so that pytriqs is visible and the wrap_generator too...
 # pytriqs needed since we import modules with pure python method to extract the doc..
 add_custom_command(OUTPUT ${wrap_name} ${converter_name} DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${ModuleName}_desc.py
  COMMAND cp ${CMAKE_CURRENT_SOURCE_DIR}/${ModuleName}_desc.py ${CMAKE_CURRENT_BINARY_DIR} && 
          PYTHONPATH=@CMAKE_INSTALL_PREFIX@/share/triqs/wrap_generator:${CMAKE_BINARY_DIR}/ ${TRIQS_PYTHON_INTERPRETER} ${CMAKE_CURRENT_BINARY_DIR}/${ModuleName}_desc.py
   @CMAKE_INSTALL_PREFIX@/share/triqs/wrap_generator/wrapper.mako.cpp
   ${wrap_name}
   @CMAKE_INSTALL_PREFIX@/share/triqs/wrap_generator/py_converter_wrapper.mako.hpp
   ${converter_name}
   # after this, list of paths for the header generated by the python wrapper generator
   @CMAKE_INSTALL_PREFIX@/include/pytriqs/converters/
   ${CMAKE_BINARY_DIR}/include/pytriqs/converters/
   )

 #set_property (GLOBAL APPEND PROPERTY TRIQS_PY_CONVERTERS_TARGETS "python_wrap_${ModuleName}")

 add_custom_target(python_wrap_${ModuleName} ALL DEPENDS ${wrap_name} ${converter_name})
 add_dependencies(python_wrap_${ModuleName} py_copy ${CMAKE_CURRENT_BINARY_DIR}/${ModuleName}_desc.py )

 add_library(${ModuleName} MODULE ${wrap_name})
 set_target_properties(${ModuleName} PROPERTIES PREFIX "") #eliminate the lib in front of the module name
 target_link_libraries(${ModuleName} ${TRIQS_LINK_LIBS} triqs)

 if (${ARGN} MATCHES "")
   install (FILES ${converter_name} DESTINATION @TRIQS_PYTHON_LIB_DEST@/include/pytriqs/converters)
   install (TARGETS ${ModuleName} DESTINATION @TRIQS_PYTHON_LIB_DEST@/${ARGN}  )
 endif (${ARGN} MATCHES "")

endmacro (triqs_python_extension)

################################################################

# 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(${Target} PROPERTIES LINK_FLAGS -Wl,-rpath,${TRIQS_PATH}/lib)
 set_target_properties(${Target} PROPERTIES INSTALL_NAME_DIR ${TRIQS_PATH}/lib)
 set_target_properties(${Target} PROPERTIES INSTALL_RPATH ${TRIQS_PATH}/lib)
 set_target_properties(${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)

  # Create the local build_pytriqs executable
  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)

  # the ipython -> just replace python by ipython, keep the same path
  STRING (REPLACE "python" "ipython" TRIQS_IPYTHON_INTERPRETER ${TRIQS_PYTHON_INTERPRETER})

  # Create the local build_ipytriqs executable
  file(WRITE ${CMAKE_BINARY_DIR}/build_ipytriqs
  "#!/bin/bash
  export PYTHONPATH=${CMAKE_BINARY_DIR}:$PYTHONPATH
  ${TRIQS_IPYTHON_INTERPRETER} $@"
  )
  execute_process(COMMAND chmod 755 ${CMAKE_BINARY_DIR}/build_ipytriqs)

  # Create the local build_ipytriqs_notebook executable
  file(WRITE ${CMAKE_BINARY_DIR}/build_ipytriqs_notebook
  "#!/bin/bash
  export PYTHONPATH=${CMAKE_BINARY_DIR}:$PYTHONPATH
  ${TRIQS_IPYTHON_INTERPRETER} notebook --pylab=inline $@"
  )
  execute_process(COMMAND chmod 755 ${CMAKE_BINARY_DIR}/build_ipytriqs_notebook)

  # Get a list of all local py and pyx files
  file(GLOB_RECURSE relative_local RELATIVE ${CMAKE_SOURCE_DIR}/python *.py *.pyx)
  foreach(f IN LISTS relative_local)
    string(REGEX REPLACE "pyx" "so" new_f ${f})
    list(APPEND local_files "${python_destination}/${new_f}")
  endforeach()

  # Get a list of all installed python files and then
  # remove the local ones from that list
  file(GLOB_RECURSE remote_files RELATIVE ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST} ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}/*)
  foreach(f IN LISTS local_files)
    list(REMOVE_ITEM remote_files ${f})
  endforeach()

  # Get the remote directory structure, remove duplicates
  foreach(f IN LISTS remote_files)
    get_filename_component(d ${f} PATH)
    list(APPEND remote_dirs "${d}")
  endforeach()
  list(REMOVE_DUPLICATES remote_dirs)
  list(REMOVE_ITEM remote_dirs "")

  # Create locally the remote directory structure and add the python_destination
  foreach(d IN LISTS remote_dirs)
    file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/pytriqs/${d})
  endforeach()
  file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/pytriqs/${python_destination})

  # Do all symbolic links for the files
  foreach(f IN LISTS remote_files)
    execute_process(COMMAND ln -snf ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}/${f} ${CMAKE_BINARY_DIR}/pytriqs/${f})
  endforeach()

  # Copy and install the __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 ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}/${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 ${TRIQS_PATH}/${TRIQS_PYTHON_LIB_DEST}/${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()