# Copyright (c) 2022 Advanced Micro Devices, Inc. All Rights Reserved.
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

cmake_minimum_required(VERSION 3.16.8)

set(HIP_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR})
set(HIP_WRAPPER_DIR ${HIP_BUILD_DIR}/wrapper_dir)
set(HIP_WRAPPER_INC_DIR ${HIP_WRAPPER_DIR}/include/hip)
set(HIP_WRAPPER_BIN_DIR ${HIP_WRAPPER_DIR}/bin)
set(HIP_WRAPPER_LIB_DIR ${HIP_WRAPPER_DIR}/lib)
set(HIP_WRAPPER_CMAKE_DIR ${HIP_WRAPPER_DIR}/cmake)
set(HIP_WRAPPER_FINDHIP_DIR ${HIP_WRAPPER_DIR}/FindHIP)
set(HIP_SRC_INC_DIR ${HIP_SRC_PATH}/include/hip)
set(HIP_SRC_BIN_DIR ${HIP_SRC_PATH}/bin)

#Function to generate header template file
function(create_header_template)
    file(WRITE ${HIP_WRAPPER_DIR}/header.hpp.in "/*
    Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the \"Software\"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   THE SOFTWARE.
   */\n\n#ifndef @include_guard@\n#define @include_guard@ \n\n#pragma message(\"This file is deprecated. Use file from include path /opt/rocm-ver/include/ and prefix with hip\")\n@include_statements@ \n\n#endif")
endfunction()

#use header template file and generate wrapper header files
function(generate_wrapper_header)
#create respecitve folder in /opt/rocm/hip
  file(MAKE_DIRECTORY ${HIP_WRAPPER_INC_DIR}/amd_detail)
  file(MAKE_DIRECTORY ${HIP_WRAPPER_INC_DIR}/nvidia_detail)

  #find all header files from include/hip
  file(GLOB include_files ${HIP_BUILD_DIR}/include/hip/*.h)
  #Convert the list of files into #includes
  foreach(header_file ${include_files})
    # set include guard
    get_filename_component(INC_GAURD_NAME ${header_file} NAME_WE)
    string(TOUPPER ${INC_GAURD_NAME} INC_GAURD_NAME)
    set(include_guard "${include_guard}HIP_WRAPPER_INCLUDE_HIP_${INC_GAURD_NAME}_H")
    #set #include statement
    get_filename_component(file_name ${header_file} NAME)
    set(include_statements "${include_statements}#include \"../../../include/hip/${file_name}\"\n")

    configure_file(${HIP_WRAPPER_DIR}/header.hpp.in ${HIP_WRAPPER_INC_DIR}/${file_name})
    unset(include_guard)
    unset(include_statements)
  endforeach()

  #find all header files from include/hip/amd_detail
  file(GLOB include_files ${HIP_SRC_INC_DIR}/amd_detail/*)
  #Convert the list of files into #includes
  foreach(header_file ${include_files})
    # set include guard
    get_filename_component(INC_GAURD_NAME ${header_file} NAME_WE)
    string(TOUPPER ${INC_GAURD_NAME} INC_GAURD_NAME)
    set(include_guard "${include_guard}HIP_WRAPPER_INCLUDE_HIP_AMD_DETAIL_${INC_GAURD_NAME}_H")
    #set #include statement
    get_filename_component(file_name ${header_file} NAME)
    set(include_statements "${include_statements}#include \"../../../../include/hip/amd_detail/${file_name}\"\n")

    configure_file(${HIP_WRAPPER_DIR}/header.hpp.in ${HIP_WRAPPER_INC_DIR}/amd_detail/${file_name})
    unset(include_guard)
    unset(include_statements)
  endforeach()

  #find all header files from include/hip/nvidia_detail
  file(GLOB include_files ${HIP_SRC_INC_DIR}/nvidia_detail/*)
  #Convert the list of files into #includes
  foreach(header_file ${include_files})
    # set include guard
    get_filename_component(INC_GAURD_NAME ${header_file} NAME_WE)
    string(TOUPPER ${INC_GAURD_NAME} INC_GAURD_NAME)
    set(include_guard "${include_guard}HIP_WRAPPER_INCLUDE_HIP_NVIDIA_DETAIL_${INC_GAURD_NAME}_H")
    #set #include statement
    get_filename_component(file_name ${header_file} NAME)
    set(include_statements "${include_statements}#include \"../../../../include/hip/nvidia_detail/${file_name}\"\n")

    configure_file(${HIP_WRAPPER_DIR}/header.hpp.in ${HIP_WRAPPER_INC_DIR}/nvidia_detail/${file_name})
    unset(include_guard)
    unset(include_statements)
  endforeach()

endfunction()

#function to create symlink to binaries
function(create_binary_symlink)
  file(MAKE_DIRECTORY ${HIP_WRAPPER_BIN_DIR})
  #get all  binaries
  file(GLOB binary_files ${HIP_SRC_BIN_DIR}/*)
  #Add .hipVersion to binary list
  set(binary_files "${binary_files}" ".hipVersion")
  foreach(binary_file ${binary_files})
    get_filename_component(file_name ${binary_file} NAME)
    add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../bin/${file_name} ${HIP_WRAPPER_BIN_DIR}/${file_name})
  endforeach()

  unset(binary_files)
  file(GLOB binary_files ${HIP_BUILD_DIR}/bin/*)
  foreach(binary_file ${binary_files})
    get_filename_component(file_name ${binary_file} NAME)
    if(WIN32)
      add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../bin/${file_name} ${HIP_WRAPPER_BIN_DIR}/${file_name})

    else()
      if( NOT ${file_name} MATCHES ".bat$")
        add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../bin/${file_name} ${HIP_WRAPPER_BIN_DIR}/${file_name})
      endif()#end of bat file check
    endif()#end of OS check
  endforeach()
endfunction()

#function to create symlink to libraries
function(create_library_symlink)
  file(MAKE_DIRECTORY ${HIP_WRAPPER_LIB_DIR})
  if(BUILD_SHARED_LIBS)
    set(LIB_AMDHIP "libamdhip64.so")
    set(MAJ_VERSION "${HIP_LIB_VERSION_MAJOR}")
    set(SO_VERSION "${HIP_LIB_VERSION_STRING}")
    set(library_files "${LIB_AMDHIP}"  "${LIB_AMDHIP}.${MAJ_VERSION}" "${LIB_AMDHIP}.${SO_VERSION}")

    if(__HIP_ENABLE_RTC)
      set(LIB_HIPRTC "libhiprtc-builtins.so")
      set(library_files "${library_files}" "${LIB_HIPRTC}"  "${LIB_HIPRTC}.${MAJ_VERSION}" "${LIB_HIPRTC}.${SO_VERSION}" )
    endif()

  else()
    set(library_files "libamdhip64.a")
  endif()

  foreach(file_name ${library_files})
     add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../lib/${file_name} ${HIP_WRAPPER_LIB_DIR}/${file_name})
  endforeach()
endfunction()

function(create_cmake_symlink)
  file(MAKE_DIRECTORY ${HIP_WRAPPER_CMAKE_DIR}/hip)
  #create symlink to  all config files
  file(GLOB config_files ${HIP_BUILD_DIR}/hip-config*)
  foreach(config_name ${config_files})
    get_filename_component(file_name ${config_name} NAME)
    add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../../../lib/cmake/hip/${file_name} ${HIP_WRAPPER_CMAKE_DIR}/hip/${file_name})
  endforeach()
  #create symlink to  hip-lang
  unset(config_files)
  file(MAKE_DIRECTORY ${HIP_WRAPPER_CMAKE_DIR}/hip-lang)
  file(GLOB config_files ${HIP_BUILD_DIR}/src/hip-lang-config*)
  foreach(config_name ${config_files})
    get_filename_component(file_name ${config_name} NAME)
    add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../../../lib/cmake/hip-lang/${file_name} ${HIP_WRAPPER_CMAKE_DIR}/hip-lang/${file_name})
  endforeach()

  unset(config_files)
  file(MAKE_DIRECTORY ${HIP_WRAPPER_FINDHIP_DIR}/FindHIP)
  file(GLOB config_files ${HIP_BUILD_DIR}/cmake/FindHIP/*.cmake)
  #create symlink to FindHIP
  foreach(config_name ${config_files})
    get_filename_component(file_name ${config_name} NAME)
    add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../../lib/cmake/hip/FindHIP/${file_name} ${HIP_WRAPPER_FINDHIP_DIR}/FindHIP/${file_name})
  endforeach()

  unset(config_files)
  file(GLOB config_files ${HIP_BUILD_DIR}/cmake/*.cmake)
  foreach(config_name ${config_files})
    get_filename_component(file_name ${config_name} NAME)
    add_custom_target(link_${file_name} ALL
                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                  COMMAND ${CMAKE_COMMAND} -E create_symlink
                  ../../lib/cmake/hip/${file_name} ${HIP_WRAPPER_FINDHIP_DIR}/${file_name})
  endforeach()

endfunction()

#Creater a template for header file
create_header_template()
#Use template header file and generater wrapper header files
generate_wrapper_header()
install(DIRECTORY ${HIP_WRAPPER_INC_DIR} DESTINATION hip/include  COMPONENT dev)
# Create symlink to binaries
create_binary_symlink()
install(DIRECTORY ${HIP_WRAPPER_BIN_DIR} DESTINATION hip COMPONENT dev)

option(BUILD_SHARED_LIBS "Build the shared library" ON)
# Create symlink to library files
create_library_symlink()
if(HIP_PLATFORM STREQUAL "amd" )
  if(BUILD_SHARED_LIBS)
    install(FILES ${HIP_WRAPPER_LIB_DIR}/libamdhip64.so DESTINATION hip/lib COMPONENT binary)
    install(FILES ${HIP_WRAPPER_LIB_DIR}/libamdhip64.so.${HIP_LIB_VERSION_MAJOR} DESTINATION hip/lib COMPONENT binary)
    install(FILES ${HIP_WRAPPER_LIB_DIR}/libamdhip64.so.${HIP_LIB_VERSION_STRING} DESTINATION hip/lib COMPONENT binary)
    if(__HIP_ENABLE_RTC)
      install(FILES ${HIP_WRAPPER_LIB_DIR}/libhiprtc-builtins.so DESTINATION hip/lib COMPONENT binary)
      install(FILES ${HIP_WRAPPER_LIB_DIR}/libhiprtc-builtins.so.${HIP_LIB_VERSION_MAJOR} DESTINATION hip/lib COMPONENT binary)
      install(FILES ${HIP_WRAPPER_LIB_DIR}/libhiprtc-builtins.so.${HIP_LIB_VERSION_STRING} DESTINATION hip/lib COMPONENT binary)
    endif()
  else()
    install(FILES ${HIP_WRAPPER_LIB_DIR}/libamdhip64.a DESTINATION hip/lib COMPONENT binary)
  endif()#End BUILD_SHARED_LIBS
endif()#End HIP_PLATFORM AMD
#create symlink to cmake files
create_cmake_symlink()
install(DIRECTORY ${HIP_WRAPPER_CMAKE_DIR} DESTINATION hip/lib COMPONENT binary)
install(DIRECTORY ${HIP_WRAPPER_FINDHIP_DIR}/ DESTINATION hip/cmake COMPONENT dev)