# CMAKE_MSVC_RUNTIME_LIBRARY requires 3.15
cmake_minimum_required(VERSION 3.20)

project (
  litephreeqc
  VERSION 3.8.5
  LANGUAGES CXX C
  )

if (WIN32) 
    message(FATAL_ERROR "litephreeqc cannot be built on Windows systems.")
endif()

# Set a default build type if none was specified
set(default_build_type "Release")
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE
    STRING "Choose the type of build." FORCE)
  # Set the possible values of build type for cmake-gui
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
    "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()

# set standard directory locations
include(GNUInstallDirs)

# Fortran
option (IPHREEQC_ENABLE_MODULE "Enable Fortran module" ON)
if (STANDALONE_BUILD)
  if (IPHREEQC_FORTRAN_TESTING)
    enable_language(Fortran)
  else()
    if (CMAKE_Fortran_COMPILER)
      option (IPHREEQC_FORTRAN_TESTING "Build Fortran test" ON)
    else()
      option (IPHREEQC_FORTRAN_TESTING "Build Fortran test" OFF)
    endif()
  endif()
endif()

# compile Var.c as c++
set_source_files_properties(src/Var.c PROPERTIES LANGUAGE CXX)

add_library(IPhreeqc STATIC src/IPhreeqc.cpp)

target_sources(IPhreeqc
  PRIVATE
    src/CSelectedOutput.cpp
    src/CSelectedOutput.hxx
    src/CVar.hxx
    src/Debug.h
    src/ErrorReporter.hxx
    src/IPhreeqc.h
    src/IPhreeqc.hpp
    src/IPhreeqc_interface_F.cpp
    src/IPhreeqcCallbacks.h
    src/IPhreeqcLib.cpp
    src/phreeqcpp/advection.cpp
    src/phreeqcpp/basicsubs.cpp
    src/phreeqcpp/cl1.cpp
    src/phreeqcpp/common/Parser.cxx
    src/phreeqcpp/common/Parser.h
    src/phreeqcpp/common/PHRQ_base.cxx
    src/phreeqcpp/common/PHRQ_base.h
    src/phreeqcpp/common/PHRQ_exports.h
    src/phreeqcpp/common/PHRQ_io.cpp
    src/phreeqcpp/common/PHRQ_io.h
    src/phreeqcpp/common/phrqtype.h
    src/phreeqcpp/common/Utils.cxx
    src/phreeqcpp/common/Utils.h
    src/phreeqcpp/cvdense.cpp
    src/phreeqcpp/cvdense.h
    src/phreeqcpp/cvode.cpp
    src/phreeqcpp/cvode.h
    src/phreeqcpp/cxxKinetics.cxx
    src/phreeqcpp/cxxKinetics.h
    src/phreeqcpp/cxxMix.cxx
    src/phreeqcpp/cxxMix.h
    src/phreeqcpp/dense.cpp
    src/phreeqcpp/dense.h
    src/phreeqcpp/Dictionary.cpp
    src/phreeqcpp/Dictionary.h
    src/phreeqcpp/dumper.cpp
    src/phreeqcpp/dumper.h
    src/phreeqcpp/Exchange.cxx
    src/phreeqcpp/Exchange.h
    src/phreeqcpp/ExchComp.cxx
    src/phreeqcpp/ExchComp.h
    src/phreeqcpp/GasComp.cxx
    src/phreeqcpp/GasComp.h
    src/phreeqcpp/gases.cpp
    src/phreeqcpp/GasPhase.cxx
    src/phreeqcpp/GasPhase.h
    src/phreeqcpp/global_structures.h
    src/phreeqcpp/input.cpp
    src/phreeqcpp/integrate.cpp
    src/phreeqcpp/inverse.cpp
    src/phreeqcpp/ISolution.cxx
    src/phreeqcpp/ISolution.h
    src/phreeqcpp/ISolutionComp.cxx
    src/phreeqcpp/ISolutionComp.h
    src/phreeqcpp/isotopes.cpp
    src/phreeqcpp/kinetics.cpp
    src/phreeqcpp/KineticsComp.cxx
    src/phreeqcpp/KineticsComp.h
    src/phreeqcpp/mainsubs.cpp
    src/phreeqcpp/model.cpp
    src/phreeqcpp/NA.h
    src/phreeqcpp/NameDouble.cxx
    src/phreeqcpp/NameDouble.h
    src/phreeqcpp/NumKeyword.cxx
    src/phreeqcpp/NumKeyword.h
    src/phreeqcpp/nvector.cpp
    src/phreeqcpp/nvector.h
    src/phreeqcpp/nvector_serial.cpp
    src/phreeqcpp/nvector_serial.h
    src/phreeqcpp/parse.cpp
    src/phreeqcpp/PBasic.cpp
    src/phreeqcpp/PBasic.h
    src/phreeqcpp/phqalloc.cpp
    src/phreeqcpp/phqalloc.h
    src/phreeqcpp/Phreeqc.cpp
    src/phreeqcpp/Phreeqc.h
    src/phreeqcpp/PhreeqcKeywords/Keywords.cpp
    src/phreeqcpp/PhreeqcKeywords/Keywords.h
    src/phreeqcpp/PHRQ_io_output.cpp
    src/phreeqcpp/pitzer.cpp
    src/phreeqcpp/pitzer_structures.cpp
    src/phreeqcpp/PPassemblage.cxx
    src/phreeqcpp/PPassemblage.h
    src/phreeqcpp/PPassemblageComp.cxx
    src/phreeqcpp/PPassemblageComp.h
    src/phreeqcpp/prep.cpp
    src/phreeqcpp/Pressure.cxx
    src/phreeqcpp/Pressure.h
    src/phreeqcpp/print.cpp
    src/phreeqcpp/Reaction.cxx
    src/phreeqcpp/Reaction.h
    src/phreeqcpp/read.cpp
    src/phreeqcpp/ReadClass.cxx
    src/phreeqcpp/readtr.cpp
    src/phreeqcpp/runner.cpp
    src/phreeqcpp/runner.h
    src/phreeqcpp/SelectedOutput.cpp
    src/phreeqcpp/SelectedOutput.h
    src/phreeqcpp/Serializer.cxx
    src/phreeqcpp/Serializer.h
    src/phreeqcpp/sit.cpp
    src/phreeqcpp/smalldense.cpp
    src/phreeqcpp/smalldense.h
    src/phreeqcpp/Solution.cxx
    src/phreeqcpp/Solution.h
    src/phreeqcpp/SolutionIsotope.cxx
    src/phreeqcpp/SolutionIsotope.h
    src/phreeqcpp/spread.cpp
    src/phreeqcpp/SS.cxx
    src/phreeqcpp/SS.h
    src/phreeqcpp/SSassemblage.cxx
    src/phreeqcpp/SSassemblage.h
    src/phreeqcpp/SScomp.cxx
    src/phreeqcpp/SScomp.h
    src/phreeqcpp/step.cpp
    src/phreeqcpp/StorageBin.cxx
    src/phreeqcpp/StorageBin.h
    src/phreeqcpp/StorageBinList.cpp
    src/phreeqcpp/StorageBinList.h
    src/phreeqcpp/structures.cpp
    src/phreeqcpp/sundialsmath.cpp
    src/phreeqcpp/sundialsmath.h
    src/phreeqcpp/sundialstypes.h
    src/phreeqcpp/Surface.cxx
    src/phreeqcpp/Surface.h
    src/phreeqcpp/SurfaceCharge.cxx
    src/phreeqcpp/SurfaceCharge.h
    src/phreeqcpp/SurfaceComp.cxx
    src/phreeqcpp/SurfaceComp.h
    src/phreeqcpp/System.cxx
    src/phreeqcpp/System.h
    src/phreeqcpp/tally.cpp
    src/phreeqcpp/Temperature.cxx
    src/phreeqcpp/Temperature.h
    src/phreeqcpp/tidy.cpp
    src/phreeqcpp/transport.cpp
    src/phreeqcpp/Use.cpp
    src/phreeqcpp/Use.h
    src/phreeqcpp/UserPunch.cpp
    src/phreeqcpp/UserPunch.h
    src/phreeqcpp/utilities.cpp
    src/phreeqcpp/litephreeqc_funcs.cpp
    src/thread.h
    src/Var.c
    src/Var.h
    src/Version.h
)

target_include_directories(IPhreeqc
  PUBLIC
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src>
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src/phreeqcpp>
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src/phreeqcpp/common>
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src/phreeqcpp/PhreeqcKeywords>
    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
  )

target_compile_definitions(IPhreeqc PRIVATE SWIG_SHARED_OBJ)
target_compile_definitions(IPhreeqc PRIVATE USE_PHRQ_ALLOC)

if (NOT IPHREEQC_ENABLE_MODULE)
  target_compile_definitions(IPhreeqc
    PUBLIC
      IPHREEQC_NO_FORTRAN_MODULE
  )

  target_sources(IPhreeqc
    PRIVATE
      src/fimpl.h
      src/fwrap.cpp
      src/fwrap1.cpp
      src/fwrap2.cpp
      src/fwrap3.cpp
      src/fwrap4.cpp
      src/fwrap5.cpp
      src/fwrap6.cpp
      src/fwrap7.cpp
      src/fwrap8.cpp
  )
endif()

# c++14
target_compile_features(IPhreeqc PUBLIC cxx_std_14)

set(IPhreeqc_Headers
  ${PROJECT_SOURCE_DIR}/src/IPhreeqc.h
  ${PROJECT_SOURCE_DIR}/src/IPhreeqc.hpp
  ${PROJECT_SOURCE_DIR}/src/IPhreeqcCallbacks.h
  ${PROJECT_SOURCE_DIR}/src/phreeqcpp/PhreeqcKeywords/Keywords.h
  ${PROJECT_SOURCE_DIR}/src/phreeqcpp/common/PHRQ_exports.h
  ${PROJECT_SOURCE_DIR}/src/phreeqcpp/common/PHRQ_io.h
  ${PROJECT_SOURCE_DIR}/src/Var.h
  )

if (IPHREEQC_ENABLE_MODULE)
  set(IPhreeqc_SRC
    ${PROJECT_SOURCE_DIR}/src/IPhreeqc_interface.F90
    ${PROJECT_SOURCE_DIR}/src/README.Fortran
    )
else()
  # always install README.Fortran
  set(IPhreeqc_SRC
    ${PROJECT_SOURCE_DIR}/src/README.Fortran
    )
  # install old fortran include files
  set(IPhreeqc_Headers
    ${IPhreeqc_Headers}
    ${PROJECT_SOURCE_DIR}/src/IPhreeqc.f.inc
    ${PROJECT_SOURCE_DIR}/src/IPhreeqc.f90.inc
    )
endif()

set_target_properties(IPhreeqc PROPERTIES
  VERSION "${IPhreeqc_VERSION}"
  SOVERSION "${IPhreeqc_VERSION_MAJOR}"
  )

# install
include(CMakePackageConfigHelpers)

configure_package_config_file(IPhreeqcConfig.cmake.in
  ${CMAKE_CURRENT_BINARY_DIR}/IPhreeqcConfig.cmake
  INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/IPhreeqc
  )

write_basic_package_version_file("IPhreeqcConfigVersion.cmake"
  VERSION ${IPhreeqc_VERSION}
  COMPATIBILITY SameMajorVersion
  )

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/IPhreeqcConfig.cmake ${CMAKE_CURRENT_BINARY_DIR}/IPhreeqcConfigVersion.cmake
  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/IPhreeqc
  )

install(TARGETS  IPhreeqc
  EXPORT   IPhreeqcTargets
  LIBRARY  DESTINATION ${CMAKE_INSTALL_LIBDIR}
  ARCHIVE  DESTINATION ${CMAKE_INSTALL_LIBDIR}
  RUNTIME  DESTINATION ${CMAKE_INSTALL_BINDIR}
  INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
  )
install(EXPORT IPhreeqcTargets
  FILE IPhreeqcTargets.cmake
  NAMESPACE IPhreeqc::
  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/IPhreeqc
  )

install(FILES ${IPhreeqc_Headers} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
if (WIN32)
  install(FILES ${IPhreeqc_SRC} DESTINATION src)
else()
  install(FILES ${IPhreeqc_SRC} DESTINATION ${CMAKE_INSTALL_DOCDIR}/src)
endif()
if (BUILD_CLR_LIBS)
  install(FILES "${PROJECT_SOURCE_DIR}/src/phreeqcpp/ZedGraph.dll" DESTINATION ${CMAKE_INSTALL_BINDIR})
endif()


include (CTest)

# add_subdirectory(database)
# add_subdirectory(doc)
# add_subdirectory(examples)

if (BUILD_TESTING)
  add_subdirectory(tests)
endif()


if (BUILD_TESTING)  # may need to add MSVC version check
  include(FetchContent)

  # Avoid warning about DOWNLOAD_EXTRACT_TIMESTAMP in CMake 3.24:
  if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.24.0")
    cmake_policy(SET CMP0135 NEW)
  endif()    

  FetchContent_Declare( 
    googletest 
    GIT_REPOSITORY https://github.com/google/googletest.git
    GIT_TAG v1.17.0
  )

  # Prevent GoogleTest from overriding our compiler/linker options
  # when building with Visual Studio
  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

  FetchContent_MakeAvailable(googletest)
  if (NOT googletest_POPULATED)
    # Always build googletest static
    set(SAVE_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
    set(BUILD_SHARED_LIBS OFF)
    FetchContent_MakeAvailable(googletest)
    set(BUILD_SHARED_LIBS ${SAVE_BUILD_SHARED_LIBS})
  endif()

  add_subdirectory(gtest)
endif()

add_subdirectory(litephreeqc)

# get_cmake_property(_variableNames VARIABLES)
# list (SORT _variableNames)
# foreach (_variableName ${_variableNames})
#   message(STATUS "${_variableName}=${${_variableName}}")
# endforeach()