CMakeLists.txt

cmake_minimum_required(VERSION 3.15)

if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/VERSION.txt")

    file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/VERSION.txt" VersionString NEWLINE_CONSUME)
    string(STRIP "${VersionString}" VersionString)
    set(LIBSBMLJS_DOTTED_VERSION ${VersionString})
    string(REPLACE "." ";" VersionString "${VersionString}" )
    string(REPLACE "-" ";" VersionString "${VersionString}" )
    list(LENGTH VersionString versionLength)
    list(GET VersionString 0 LIBSBMLJS_VERSION_MAJOR )
    list(GET VersionString 1 LIBSBMLJS_VERSION_MINOR )
    list(GET VersionString 2 LIBSBMLJS_VERSION_PATCH )

    if(${versionLength} GREATER 3)
        list(GET VersionString 3 LIBSBMLJS_VERSION_RELEASE )
    endif()

endif()

# version number needs to be calculated correctly
MATH(EXPR LIBSBMLJS_VERSION_NUMERIC "${LIBSBMLJS_VERSION_MAJOR} * 10000 + ${LIBSBMLJS_VERSION_MINOR} * 100 + ${LIBSBMLJS_VERSION_PATCH}" )


project(LIBSBMLjs LANGUAGES CXX VERSION ${LIBSBMLJS_DOTTED_VERSION})

enable_testing()

set(CMAKE_CXX_STANDARD 17)

# Specify directory with dependencies
set(LIBSBMLJS_DEPENDENCY_DIR "dependencies" CACHE PATH "Directory with dependencies")

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${LIBSBMLJS_DEPENDENCY_DIR}/share/LIBSBML/CMakeModules")

find_package(LIBSBML REQUIRED)

# Add library target
if (EMSCRIPTEN)
option(LIBSBMLJS_SINGLE_FILE "Build single js (on) or js + wasm (if off)" OFF)
set (LIBSBMLJS_ENVIRONMENT "node" CACHE STRING "Environment for which to build one of: web, node")

set (EXPORTED_FUNCTIONS "ccall,cwrap")
set (PRELOAD_FILE)
set (DATA_FILE)

#add_executable(LIBSBMLjs src/LIBSBMLjs.cpp src/LIBSBMLjs.h src/)
#target_link_libraries(LIBSBMLjs PUBLIC embind)

add_executable(sbml_utils src/sbml_utils.cpp src/)

target_link_libraries(sbml_utils PUBLIC embind)
set(CMAKE_EXECUTABLE_SUFFIX ".js")

set(LIBSBMLJS_OPT_FLAGS "-Os -sNO_DISABLE_EXCEPTION_CATCHING -fexceptions")
# set(LIBSBMLJS_OPT_FLAGS "-O3 -g -sASSERTIONS=2 -sNO_DISABLE_EXCEPTION_CATCHING -fexceptions")


set (WASM_FILE)
if (LIBSBMLJS_SINGLE_FILE)
set (SINGLE_FILE "-sSINGLE_FILE=1 ")
else()
set (WASM_FILE ${CMAKE_CURRENT_BINARY_DIR}/sbml_utils.wasm)
set (SINGLE_FILE "-sSINGLE_FILE=0 ")
endif()

set_target_properties(sbml_utils PROPERTIES COMPILE_FLAGS "${LIBSBMLJS_OPT_FLAGS}")
set_target_properties(sbml_utils PROPERTIES LINK_FLAGS    "${LIBSBMLJS_OPT_FLAGS} -s ALLOW_MEMORY_GROWTH=1 -sENVIRONMENT=${LIBSBMLJS_ENVIRONMENT} ${SINGLE_FILE} -sEXPORT_ES6=0  -s WASM=1 -s MODULARIZE -s 'EXPORT_NAME=createCpsModule' --no-entry ${PRELOAD_FILE} -sEXPORTED_RUNTIME_METHODS=${EXPORTED_FUNCTIONS}")

install(
  FILES 
    ${CMAKE_CURRENT_BINARY_DIR}/sbml_utils.js
    #${CMAKE_CURRENT_SOURCE_DIR}/js/LIBSBML.js
    #${CMAKE_CURRENT_SOURCE_DIR}/js/LIBSBML.d.ts
    ${DATA_FILE}
    ${WASM_FILE}

  DESTINATION ${CMAKE_INSTALL_PREFIX}
)

else()
#add_library(LIBSBMLjs src/LIBSBMLjs.cpp src/LIBSBMLjs.h src/)
endif()

# Add include directory from dependencies
target_include_directories(sbml_utils PRIVATE ${CMAKE_SOURCE_DIR}/src)

# Link dependencies
target_link_libraries(sbml_utils PUBLIC ${LIBSBML_LIBRARY})


if (NOT EMSCRIPTEN)
# compile a test executable
Include(FetchContent)

FetchContent_Declare(
  Catch2
  GIT_REPOSITORY https://github.com/catchorg/Catch2.git
  GIT_TAG        v3.4.0 # or a later release
)

FetchContent_MakeAvailable(Catch2)

# These tests can use the Catch2-provided main
add_executable(LIBSBMLjs_test test/LIBSBMLjs_test.cpp)
target_include_directories(LIBSBMLjs_test PUBLIC ${LIBSBML_DEPENDENCY_DIR}/include)
target_include_directories(LIBSBMLjs_test PRIVATE ${CMAKE_SOURCE_DIR}/src)
target_link_libraries(LIBSBMLjs_test PRIVATE Catch2::Catch2WithMain LIBSBMLjs)
if (APPLE)
  target_link_libraries(LIBSBMLjs_test PRIVATE "-framework CoreFoundation -framework Accelerate")
endif()

add_test(NAME LIBSBMLjs_test_run COMMAND LIBSBMLjs_test)
set_tests_properties(LIBSBMLjs_test_run PROPERTIES 
  ENVIRONMENT "srcdir=${CMAKE_CURRENT_SOURCE_DIR}/test"
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
)

endif()


message(STATUS "
----------------------------------------------------------------------
LIBSBMLJS version ${LIBSBMLJS_DOTTED_VERSION}
----------------------------------------------------------------------

   More information and the latest version are available online at
   https://sbml.org

   Please report problems using the issue tracker at
   https://github.com/fbergmann/libsbml-utils.js/issues

   Configured on host '${HOSTNAME}'
     host type                       = ${CMAKE_SYSTEM_NAME}
     host operating system           = ${CMAKE_SYSTEM_NAME} ${CMAKE_SYSTEM_VERSION}
     host CPU architecture           = ${CMAKE_SYSTEM_PROCESSOR}

   General build flags:
     CC                              = ${CMAKE_C_COMPILER}
     CXX                             = ${CMAKE_CXX_COMPILER}
     CPPFLAGS                        = ${BUILD_DEFINITIONS}
     CFLAGS                          = ${CMAKE_C_FLAGS}
     CXXFLAGS                        = ${CMAKE_CXX_FLAGS}
     LDFLAGS                         = ${CMAKE_EXE_LINKER_FLAGS}

   Dependencies directory            = ${LIBSBMLJS_DEPENDENCY_DIR}

     LibSBML                         = ${LIBSBML_VERSION}

   Other libSBML configuration settings:
     Installation $prefix            = ${CMAKE_INSTALL_PREFIX}
     
")