cmake_minimum_required(VERSION 2.8)

project(Orthanc)

# Version of the build, should always be "mainline" except in release branches
set(ORTHANC_VERSION "mainline")


#####################################################################
## CMake parameters tunable at the command line
#####################################################################

# Parameters of the build
SET(STATIC_BUILD OFF CACHE BOOL "Static build of the third-party libraries (necessary for Windows)")
SET(STANDALONE_BUILD ON CACHE BOOL "Standalone build (all the resources are embedded, necessary for releases)")
SET(ENABLE_SSL ON CACHE BOOL "Include support for SSL")
SET(BUILD_CLIENT_LIBRARY ON CACHE BOOL "Build the client library")
SET(DCMTK_DICTIONARY_DIR "/usr/share/dcmtk" CACHE PATH "Directory containing the DCMTK dictionaries \"dicom.dic\" and \"private.dic\" (only when using system version of DCMTK)") 
SET(ALLOW_DOWNLOADS OFF CACHE BOOL "Allow CMake to download packages")

# Advanced parameters to fine-tune linking against system libraries
SET(USE_SYSTEM_JSONCPP ON CACHE BOOL "Use the system version of JsonCpp")
SET(USE_SYSTEM_GOOGLE_LOG ON CACHE BOOL "Use the system version of Google Log")
SET(USE_SYSTEM_GOOGLE_TEST ON CACHE BOOL "Use the system version of Google Test")
SET(USE_SYSTEM_SQLITE ON CACHE BOOL "Use the system version of SQLite")
SET(USE_SYSTEM_MONGOOSE ON CACHE BOOL "Use the system version of Mongoose")
SET(USE_SYSTEM_LUA ON CACHE BOOL "Use the system version of Lua")
SET(USE_SYSTEM_DCMTK ON CACHE BOOL "Use the system version of DCMTK")
SET(USE_SYSTEM_BOOST ON CACHE BOOL "Use the system version of Boost")
SET(USE_SYSTEM_LIBPNG ON CACHE BOOL "Use the system version of LibPng")
SET(USE_SYSTEM_CURL ON CACHE BOOL "Use the system version of LibCurl")
SET(USE_SYSTEM_OPENSSL ON CACHE BOOL "Use the system version of OpenSSL")
SET(USE_SYSTEM_ZLIB ON CACHE BOOL "Use the system version of ZLib")

# Distribution-specific settings
SET(USE_GTEST_DEBIAN_SOURCE_PACKAGE OFF CACHE BOOL "Use the sources of Google Test shipped with libgtest-dev (Debian only)")
mark_as_advanced(USE_GTEST_DEBIAN_SOURCE_PACKAGE)

# Some basic inclusions
include(CheckIncludeFiles)
include(CheckIncludeFileCXX)
include(CheckLibraryExists)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/AutoGeneratedCode.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/DownloadPackage.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/Compiler.cmake)

set(ORTHANC_ROOT ${CMAKE_SOURCE_DIR})




#####################################################################
## Inclusion of third-party dependencies
#####################################################################

# Configuration of the standalone builds
if (CMAKE_CROSSCOMPILING)
  # Cross-compilation implies the standalone build
  SET(STANDALONE_BUILD ON)
endif()

# Prepare the third-party dependencies
SET(THIRD_PARTY_SOURCES
  ${CMAKE_SOURCE_DIR}/Resources/md5/md5.c
  ${CMAKE_SOURCE_DIR}/Resources/base64/base64.cpp
  )

include(${CMAKE_SOURCE_DIR}/Resources/CMake/GoogleLogConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/BoostConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/DcmtkConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/MongooseConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/ZlibConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/SQLiteConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/JsonCppConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/LibPngConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/LuaConfiguration.cmake)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/LibCurlConfiguration.cmake)


if (${ENABLE_SSL})
  add_definitions(-DORTHANC_SSL_ENABLED=1)
  include(${CMAKE_SOURCE_DIR}/Resources/CMake/OpenSslConfiguration.cmake)
else()
  add_definitions(-DORTHANC_SSL_ENABLED=0)
endif()



#####################################################################
## Autogeneration of files
#####################################################################

# Prepare the embedded files
set(EMBEDDED_FILES
  PREPARE_DATABASE ${CMAKE_CURRENT_SOURCE_DIR}/OrthancServer/PrepareDatabase.sql
  UPGRADE_DATABASE_3_TO_4 ${CMAKE_CURRENT_SOURCE_DIR}/OrthancServer/Upgrade3To4.sql
  CONFIGURATION_SAMPLE ${CMAKE_CURRENT_SOURCE_DIR}/Resources/Configuration.json
  LUA_TOOLBOX ${CMAKE_CURRENT_SOURCE_DIR}/Resources/Toolbox.lua
  )

if (${STANDALONE_BUILD})
  # We embed all the resources in the binaries for standalone builds
  add_definitions(-DORTHANC_STANDALONE=1)
  EmbedResources(
    ${EMBEDDED_FILES}
    ORTHANC_EXPLORER ${CMAKE_CURRENT_SOURCE_DIR}/OrthancExplorer
    ${DCMTK_DICTIONARIES}
    )
else()
  add_definitions(
    -DORTHANC_STANDALONE=0
    -DORTHANC_PATH=\"${CMAKE_SOURCE_DIR}\"
    )
  EmbedResources(
    ${EMBEDDED_FILES}
    )
endif()



#####################################################################
## Build the core of Orthanc
#####################################################################

add_definitions(
  -DORTHANC_VERSION="${ORTHANC_VERSION}"
  )

list(LENGTH OPENSSL_SOURCES OPENSSL_SOURCES_LENGTH)
if (${OPENSSL_SOURCES_LENGTH} GREATER 0)
  add_library(OpenSSL STATIC ${OPENSSL_SOURCES})
endif()

add_library(CoreLibrary
  STATIC
  ${AUTOGENERATED_SOURCES}
  ${THIRD_PARTY_SOURCES}
  ${CURL_SOURCES}

  Core/Cache/MemoryCache.cpp
  Core/ChunkedBuffer.cpp
  Core/Compression/BufferCompressor.cpp
  Core/Compression/ZlibCompressor.cpp
  Core/Compression/ZipWriter.cpp
  Core/Compression/HierarchicalZipWriter.cpp
  Core/OrthancException.cpp
  Core/DicomFormat/DicomArray.cpp
  Core/DicomFormat/DicomMap.cpp
  Core/DicomFormat/DicomTag.cpp
  Core/DicomFormat/DicomIntegerPixelAccessor.cpp
  Core/DicomFormat/DicomInstanceHasher.cpp
  Core/Enumerations.cpp
  Core/FileStorage/FileStorage.cpp
  Core/FileStorage/StorageAccessor.cpp
  Core/FileStorage/CompressedFileStorageAccessor.cpp
  Core/FileStorage/FileStorageAccessor.cpp
  Core/HttpClient.cpp
  Core/HttpServer/EmbeddedResourceHttpHandler.cpp
  Core/HttpServer/FilesystemHttpHandler.cpp
  Core/HttpServer/HttpHandler.cpp
  Core/HttpServer/HttpOutput.cpp
  Core/HttpServer/MongooseServer.cpp
  Core/HttpServer/HttpFileSender.cpp
  Core/HttpServer/FilesystemHttpSender.cpp
  Core/RestApi/RestApiPath.cpp
  Core/RestApi/RestApiOutput.cpp
  Core/RestApi/RestApi.cpp
  Core/MultiThreading/BagOfRunnablesBySteps.cpp
  Core/MultiThreading/SharedMessageQueue.cpp
  Core/MultiThreading/ThreadedCommandProcessor.cpp
  Core/MultiThreading/ArrayFilledByThreads.cpp
  Core/FileFormats/PngReader.cpp
  Core/FileFormats/PngWriter.cpp
  Core/SQLite/Connection.cpp
  Core/SQLite/FunctionContext.cpp
  Core/SQLite/Statement.cpp
  Core/SQLite/StatementId.cpp
  Core/SQLite/StatementReference.cpp
  Core/SQLite/Transaction.cpp
  Core/Toolbox.cpp
  Core/Uuid.cpp
  Core/Lua/LuaContext.cpp
  Core/Lua/LuaFunctionCall.cpp

  OrthancCppClient/OrthancConnection.cpp
  OrthancCppClient/Study.cpp
  OrthancCppClient/Series.cpp
  OrthancCppClient/Instance.cpp
  OrthancCppClient/Patient.cpp
  )  


#####################################################################
## Build the Orthanc server
#####################################################################

add_library(ServerLibrary
  STATIC
  ${DCMTK_SOURCES}
  OrthancServer/DicomProtocol/DicomFindAnswers.cpp
  OrthancServer/DicomProtocol/DicomServer.cpp
  OrthancServer/DicomProtocol/DicomUserConnection.cpp
  OrthancServer/FromDcmtkBridge.cpp
  OrthancServer/Internals/CommandDispatcher.cpp
  OrthancServer/Internals/FindScp.cpp
  OrthancServer/Internals/MoveScp.cpp
  OrthancServer/Internals/StoreScp.cpp
  OrthancServer/OrthancInitialization.cpp
  OrthancServer/OrthancRestApi.cpp
  OrthancServer/ServerIndex.cpp
  OrthancServer/ToDcmtkBridge.cpp
  OrthancServer/DatabaseWrapper.cpp
  OrthancServer/ServerContext.cpp
  OrthancServer/ServerEnumerations.cpp
  OrthancServer/ServerToolbox.cpp
  OrthancServer/OrthancFindRequestHandler.cpp
  OrthancServer/OrthancMoveRequestHandler.cpp
  )

# Ensure autogenerated code is built before building ServerLibrary
add_dependencies(ServerLibrary CoreLibrary)

add_executable(Orthanc
  OrthancServer/main.cpp
  )

target_link_libraries(Orthanc ServerLibrary CoreLibrary)

if (${OPENSSL_SOURCES_LENGTH} GREATER 0)
  target_link_libraries(Orthanc OpenSSL)
endif()

install(
  TARGETS Orthanc
  RUNTIME DESTINATION sbin
  )



#####################################################################
## Build the unit tests
#####################################################################

add_definitions(-DORTHANC_BUILD_UNIT_TESTS=1)
include(${CMAKE_SOURCE_DIR}/Resources/CMake/GoogleTestConfiguration.cmake)
add_executable(UnitTests
  ${GTEST_SOURCES}
  UnitTestsSources/FileStorage.cpp
  UnitTestsSources/MemoryCache.cpp
  UnitTestsSources/Png.cpp
  UnitTestsSources/RestApi.cpp
  UnitTestsSources/SQLite.cpp
  UnitTestsSources/SQLiteChromium.cpp
  UnitTestsSources/ServerIndex.cpp
  UnitTestsSources/Versions.cpp
  UnitTestsSources/Zip.cpp
  UnitTestsSources/Lua.cpp
  UnitTestsSources/main.cpp
  )
target_link_libraries(UnitTests ServerLibrary CoreLibrary)

if (${OPENSSL_SOURCES_LENGTH} GREATER 0)
  target_link_libraries(UnitTests OpenSSL)
endif()



#####################################################################
## Create the standalone DLL containing the Orthanc Client API
#####################################################################

if (BUILD_CLIENT_LIBRARY)
  include_directories(${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/Laaw)

  if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
    if (CMAKE_CROSSCOMPILING)
      # Remove the default "lib" prefix from "libOrthancClient.dll" if cross-compiling
      set(CMAKE_SHARED_LIBRARY_PREFIX "")

      if (${CMAKE_SIZEOF_VOID_P} EQUAL 4)
        set(ORTHANC_CPP_CLIENT_AUX ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/AUTOGENERATED/Windows32.def)
      elseif (${CMAKE_SIZEOF_VOID_P} EQUAL 8)
        set(ORTHANC_CPP_CLIENT_AUX ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/AUTOGENERATED/Windows64.def)
      else()
        message(FATAL_ERROR "Support your platform here")
      endif()
    else()
      # Nothing to do if using Visual Studio
    endif()

    if (${CMAKE_SIZEOF_VOID_P} EQUAL 4)
      set(CMAKE_SHARED_LIBRARY_SUFFIX "_Windows32.dll")
      list(APPEND ORTHANC_CPP_CLIENT_AUX ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/AUTOGENERATED/Windows32.rc)
    elseif (${CMAKE_SIZEOF_VOID_P} EQUAL 8)
      set(CMAKE_SHARED_LIBRARY_SUFFIX "_Windows64.dll")
      list(APPEND ORTHANC_CPP_CLIENT_AUX ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/AUTOGENERATED/Windows64.rc)
    else()
      message(FATAL_ERROR "Support your platform here")
    endif()    

  else()
    set(ORTHANC_CPP_CLIENT_AUX ${OPENSSL_SOURCES})
  endif()

  add_library(OrthancClient SHARED
    ${ORTHANC_ROOT}/Core/OrthancException.cpp
    ${ORTHANC_ROOT}/Core/Enumerations.cpp
    ${ORTHANC_ROOT}/Core/Toolbox.cpp
    ${ORTHANC_ROOT}/Core/HttpClient.cpp
    ${ORTHANC_ROOT}/Core/MultiThreading/ArrayFilledByThreads.cpp
    ${ORTHANC_ROOT}/Core/MultiThreading/ThreadedCommandProcessor.cpp
    ${ORTHANC_ROOT}/Core/MultiThreading/SharedMessageQueue.cpp
    ${ORTHANC_ROOT}/Core/FileFormats/PngReader.cpp
    ${ORTHANC_ROOT}/OrthancCppClient/OrthancConnection.cpp
    ${ORTHANC_ROOT}/OrthancCppClient/Series.cpp
    ${ORTHANC_ROOT}/OrthancCppClient/Study.cpp
    ${ORTHANC_ROOT}/OrthancCppClient/Instance.cpp
    ${ORTHANC_ROOT}/OrthancCppClient/Patient.cpp
    ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/SharedLibrary.cpp
    ${ORTHANC_ROOT}/Resources/md5/md5.c
    ${ORTHANC_ROOT}/Resources/base64/base64.cpp
    ${ORTHANC_CPP_CLIENT_AUX}
    ${THIRD_PARTY_SOURCES}
    ${CURL_SOURCES}
    )

  if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
    set_target_properties(OrthancClient
      PROPERTIES LINK_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-undefined -Wl,--as-needed -Wl,--version-script=${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/Laaw/VersionScript.map"
      )
    target_link_libraries(OrthancClient pthread)

  elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
    target_link_libraries(OrthancClient OpenSSL ws2_32)

    if (CMAKE_CROSSCOMPILING)
      set_target_properties(OrthancClient
        PROPERTIES LINK_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--allow-multiple-definition -static-libgcc -static-libstdc++"
        )
    endif()

  else()
    message(FATAL_ERROR "Support your platform here")
  endif()


  # Set the version of the "Orthanc Client" shared library
  file(STRINGS
    ${CMAKE_SOURCE_DIR}/OrthancCppClient/SharedLibrary/Product.json
    ORTHANC_CLIENT_VERSION_TMP
    REGEX "^[ \t]*\"Version\"[ \t]*")

  string(REGEX REPLACE "^.*\"([0-9]+)\\.([0-9]+)\\.([0-9]+)\"" "\\1.\\2" 
    ORTHANC_CLIENT_VERSION ${ORTHANC_CLIENT_VERSION_TMP})

  message("Setting the version of the library to ${ORTHANC_CLIENT_VERSION}")

  set_target_properties(OrthancClient PROPERTIES 
    VERSION ${ORTHANC_CLIENT_VERSION} 
    SOVERSION ${ORTHANC_CLIENT_VERSION})


  install(
    TARGETS OrthancClient
    RUNTIME DESTINATION lib    # Destination for Windows
    LIBRARY DESTINATION lib    # Destination for Linux
    )

  install(
    FILES ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/AUTOGENERATED/OrthancCppClient.h 
    DESTINATION include/orthanc
    )
endif()


        

#####################################################################
## Generate the documentation if Doxygen is present
#####################################################################

find_package(Doxygen)
if (DOXYGEN_FOUND)
  configure_file(
    ${CMAKE_SOURCE_DIR}/Resources/Orthanc.doxygen
    ${CMAKE_CURRENT_BINARY_DIR}/Orthanc.doxygen
    @ONLY)

  add_custom_target(doc
    ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Orthanc.doxygen
    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
    COMMENT "Generating internal documentation with Doxygen" VERBATIM
    )

  if (BUILD_CLIENT_LIBRARY)
    configure_file(
      ${CMAKE_SOURCE_DIR}/Resources/OrthancClient.doxygen
      ${CMAKE_CURRENT_BINARY_DIR}/OrthancClient.doxygen
      @ONLY)

    add_custom_command(TARGET OrthancClient 
      POST_BUILD
      COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/OrthancClient.doxygen
      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
      COMMENT "Generating client documentation with Doxygen" VERBATIM
      )

    install(
      DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/OrthancClientDocumentation/doc/
      DESTINATION share/doc/orthanc/OrthancClient
      )
  endif()

else()
  message("Doxygen not found. The documentation will not be built.")
endif()


#####################################################################
## Prepare the "uninstall" target
## http://www.cmake.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F
#####################################################################

configure_file(
    "${CMAKE_CURRENT_SOURCE_DIR}/Resources/CMake/Uninstall.cmake.in"
    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
    IMMEDIATE @ONLY)

add_custom_target(uninstall
    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)