# Copyright (c) Monetas AG, 2014

cmake_minimum_required(VERSION 2.8.11)
project(opentxs)


set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM LAST)
find_package(Git)
if(GIT_FOUND)
    execute_process(COMMAND git "describe" OUTPUT_VARIABLE GIT_VERSION WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} OUTPUT_STRIP_TRAILING_WHITESPACE)
    string(REGEX REPLACE "^([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GIT_VERSION}")
    string(REGEX REPLACE "^[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GIT_VERSION}")
    string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_BUGFIX "${GIT_VERSION}")
    string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.[0-9]+-([0-9]+)-.*" "\\1" VERSION_NEW_COMMITS "${GIT_VERSION}")
    string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.[0-9]+-[0-9]+-(.*)" "\\1" VERSION_SHA1 "${GIT_VERSION}")
    if("${VERSION_SHA1}" STREQUAL "")
        set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_BUGFIX}")
    else()
        set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_BUGFIX}-${VERSION_NEW_COMMITS}-${VERSION_SHA1}")
    endif()
    if ("${VERSION_STRING}" STREQUAL "..")
        message(FATAL_ERROR "Version string missing. Did you git clone using the --depth parameter?")
    endif()
else()
  message(FATAL_ERROR "Git not found.")
endif()


#-----------------------------------------------------------------------------
# Options for building

option(BUILD_VERBOSE       "Verbose build output." ON)
option(BUILD_DOCUMENTATION "Build the Doxygen documentation." ON)
option(BUILD_TESTS         "Build the unit tests." ON)
option(USE_CCACHE          "Use ccache." OFF)

option(BUILD_SHARED_LIBS   "Build shared libraries." ON)

option(RPM                 "Build a RPM" OFF)
option(DEB                 "Build a DEB" OFF)
set(PACKAGE_CONTACT        ""                             CACHE <TYPE>  "Package Maintainer")
set(PACKAGE_VENDOR         "Open Transactions Developers" CACHE <TYPE>  "Package Vendor")
option(AUTOCOMPLETION      "CL autocompletion to opentxs CL client" OFF)

option(SIGNAL_HANLDER      "Enable Signal Handler" OFF)

option(KEYRING_WINDOWS     "Build with Windows Keyring" OFF)
option(KEYRING_MAC         "Build with Mac OSX Keyring" OFF)
option(KEYRING_IOS         "Build with iOS Keyring" OFF)
option(KEYRING_GNOME       "Build with Gnome Keyring" OFF)
option(KEYRING_KWALLET     "Build with KWallet Keyring" OFF)
option(KEYRING_FLATFILE    "Build with Flatfile Keyring" OFF)

# SWIG Bindings
option(JAVA    "Build with Java binding" OFF)
option(PERL    "Build with Perl binding" OFF)
option(PHP     "Build with PHP binding" OFF)
option(PYTHON  "Build with Python binding" OFF)


if(BUILD_VERBOSE)
  set(CMAKE_VERBOSE_MAKEFILE true)
endif()

if(RPM OR DEB)
    if(NOT PACKAGE_CONTACT)
        message(FATAL_ERROR "Specify a PACKAGE_CONTACT to build packages.")
    endif()
endif()

#-----------------------------------------------------------------------------
# Print system information and build options

message(STATUS "General -------------------------------------")
message(STATUS "opentxs version:        ${VERSION_STRING}")
message(STATUS "CMake version:          ${CMAKE_VERSION}")
message(STATUS "System:                 ${CMAKE_SYSTEM}")
message(STATUS "Processor:              ${CMAKE_SYSTEM_PROCESSOR}")

message(STATUS "Verbose:                ${BUILD_VERBOSE}")
message(STATUS "Testing:                ${BUILD_TESTS}")
message(STATUS "Documentation:          ${BUILD_DOCUMENTATION}")
message(STATUS "Using ccache            ${USE_CCACHE}")

message(STATUS "Packaging -----------------------------------")
message(STATUS "Build RPM:              ${RPM}")
message(STATUS "Build DEB:              ${DEB}")
message(STATUS "Package Contact:        ${PACKAGE_CONTACT}")
message(STATUS "Package Vendor:         ${PACKAGE_VENDOR}")

message(STATUS "CL autocompletion:      ${AUTOCOMPLETION}")

message(STATUS "Keyrings ------------------------------------")
message(STATUS "Keyring Windows:        ${KEYRING_WINDOWS}")
message(STATUS "Keyring MAC:            ${KEYRING_MAC}")
message(STATUS "Keyring iOS:            ${KEYRING_IOS}")
message(STATUS "Keyring Gnome:          ${KEYRING_GNOME}")
message(STATUS "Keyring KWallet:        ${KEYRING_KWALLET}")
message(STATUS "Keyring flatfile:       ${KEYRING_FLATFILE}")

message(STATUS "Bindings ------------------------------------")
message(STATUS "Java binding:           ${JAVA}")
message(STATUS "Perl binding:           ${PERL}")
message(STATUS "PHP binding:            ${PHP}")
message(STATUS "Python binding:         ${PYTHON}")


#-----------------------------------------------------------------------------
# Collect all binaries into bin subdirectory

set(EXECUTABLE_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR}/bin)
set(LIBRARY_OUTPUT_PATH  ${CMAKE_CURRENT_BINARY_DIR}/lib)


#-----------------------------------------------------------------------------
# Check which compiler to use

if(${CMAKE_CXX_COMPILER_ID} MATCHES GNU)
  INCLUDE(CheckCXXCompilerFlag)
  CHECK_CXX_COMPILER_FLAG(-std=c++11 HAVE_STD11)
  if(HAVE_STD11)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pthread")
    set(GCC_WARN_FLAGS "-Wnoexcept -Wstrict-null-sentinel -Wlogical-op -Wuseless-cast")
  else()
    message(FATAL_ERROR "No advanced standard C++ support (-std=c++11 not defined).")
  endif()
elseif(${CMAKE_CXX_COMPILER_ID} MATCHES Clang)
  set(CMAKE_COMPILER_IS_CLANGXX 1)
  INCLUDE(CheckCXXCompilerFlag)
  CHECK_CXX_COMPILER_FLAG(-std=c++11 HAVE_STD11)
  if(HAVE_STD11)
    if(APPLE)
      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++")
      set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -stdlib=libc++")
    else()
      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pthread")
    endif()
  else()
    message(FATAL_ERROR "No C++11 support for Clang version. Please upgrade Clang to a version supporting C++11.")
  endif()
endif()

if(BUILD_SHARED_LIBS)
  # Windows would complain about unknown flag -fPIC
  if(NOT WIN32)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
  endif()
endif()


if(WIN32)
  add_definitions(-D_UNICODE)
else()
  set(PEDANTIC_CXX_FLAGS "-Wall -Werror -Wextra -pedantic -Wno-missing-braces -Wcast-align -Wctor-dtor-privacy -Wdisabled-optimization -Winit-self -Wmissing-include-dirs -Wswitch-default -Wold-style-cast -Wredundant-decls -Woverloaded-virtual -Wmissing-declarations -Wunused-macros -Wundef -Wformat=2 -Wno-format-nonliteral ${GCC_WARN_FLAGS}")
endif()

if(ANDROID)
  set(PEDANTIC_CXX_FLAGS "${PEDANTIC_CXX_FLAGS} -Wno-useless-cast")
  add_definitions(-D__STDC_LIMIT_MACROS)
endif()

message(STATUS "C++ Compiler ID: ${CMAKE_CXX_COMPILER_ID}")
message(STATUS "C++ Flags:       ${CMAKE_CXX_FLAGS}")
message(STATUS "C++ link flags:  ${CMAKE_CXX_LINK_FLAGS}")

#-----------------------------------------------------------------------------
# Get submodules

execute_process(COMMAND git "submodule" "update" "--init" "--recursive" WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})


#-----------------------------------------------------------------------------
# Third party libraries

if(APPLE)
  find_package(OpenSSL REQUIRED)
else()
  find_package(OpenSSL 1.0.1 REQUIRED)
endif()
find_package(Protobuf REQUIRED)
find_package(ZLIB REQUIRED)
find_library(ZMQ_LIB NAMES
    libzmq.so.3.1.0 libzmq.3.dylib libzmq-v120-mt-gd-4_0_4  # zeromq 4.0.4
    libzmq.so.4.0.0 libzmq.4.dylib libzmq-v120-mt-gd-4_0_5  # zeromq 4.0.5
)
if (ZMQ_LIB STREQUAL "ZMQ_LIB-NOTFOUND")
  set(ZMQ_LIB_FOUND 0)
  set(ZMQ_LIBRARY libzmq)
  set(ZMQ_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/deps/libzmq_4/include)
  message(STATUS "System's ZeroMQ not found. Using local ZeroMQ.")
  if(WIN32)
    message(STATUS "  Check your CMAKE_LIBRARY_PATH environment variable")
  endif()
else()
  set(ZMQ_LIB_FOUND 1)
  set(ZMQ_LIBRARY "${ZMQ_LIB}")
  find_path(ZMQ_INCLUDE_DIR zmq.h)
  message(STATUS "Found ZeroMQ: ${ZMQ_LIB}")
endif()
file(STRINGS "${ZMQ_INCLUDE_DIR}/zmq.h" ZMQ_VERSION_MAJOR REGEX "^#define ZMQ_VERSION_MAJOR [0-9]$")
string(REGEX REPLACE "^#define ZMQ_VERSION_MAJOR ([0-9])$" "\\1" ZMQ_VERSION_MAJOR "${ZMQ_VERSION_MAJOR}")
file(STRINGS "${ZMQ_INCLUDE_DIR}/zmq.h" ZMQ_VERSION_MINOR REGEX "^#define ZMQ_VERSION_MINOR [0-9]$")
string(REGEX REPLACE "^#define ZMQ_VERSION_MINOR ([0-9])$" "\\1" ZMQ_VERSION_MINOR "${ZMQ_VERSION_MINOR}")
set(ZMQ_VERSION "${ZMQ_VERSION_MAJOR}.${ZMQ_VERSION_MINOR}")
if (NOT ZMQ_VERSION STREQUAL "4.0")
  message(FATAL_ERROR "Wrong ZeroMQ version ${ZMQ_VERSION}. Required version is 4.0.x")
endif()

#-----------------------------------------------------------------------------
# System libraries used for linking.

if(UNIX AND NOT APPLE)
  list(APPEND OPENTXS_SYSTEM_LIBRARIES dl)
  if(ANDROID)
    list(APPEND OPENTXS_SYSTEM_LIBRARIES log)
  else()
    list(APPEND OPENTXS_SYSTEM_LIBRARIES rt)
  endif()
endif()


#-----------------------------------------------------------------------------
# Force out-of-source build

if(${CMAKE_CURRENT_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_BINARY_DIR})
message(FATAL_ERROR "CMake generation is not allowed within the source directory!
Remove the CMakeCache.txt file and try again from another folder, e.g.:

   rm CMakeCache.txt
   mkdir build
   cd build
   cmake ..
")
endif()

#-----------------------------------------------------------------------------
# Use ccache

if (USE_CCACHE)
  find_program(CCACHE "ccache")
  if (CCACHE)
    SET_PROPERTY(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "CCACHE_CPP2=yes ${CCACHE}")
    SET_PROPERTY(GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE})
  endif(CCACHE)
endif (USE_CCACHE)

#-----------------------------------------------------------------------------
# Default to Release build

if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release CACHE STRING
      "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
      FORCE)
endif()


#-----------------------------------------------------------------------------
# Build Unit tests

if(BUILD_TESTS)
  set(GTEST_ROOT ${opentxs_SOURCE_DIR}/deps/gtest)
  set(GTEST_FOUND ON)
  set(GTEST_INCLUDE_DIRS ${GTEST_ROOT}/include)
  set(GTEST_LIBRARY gtest)
  set(GTEST_MAIN_LIBRARY gtest_main)
  set(GTEST_BOTH_LIBRARIES ${GTEST_LIBRARY} ${GTEST_MAIN_LIBRARY})

  enable_testing()
endif()


#-----------------------------------------------------------------------------
# Build Documentation

if(BUILD_DOCUMENTATION)
  set(DOC_GRAPHS "YES" CACHE STRING "Create dependency graphs (needs graphviz)")
  set(DOC_FULLGRAPHS "NO" CACHE STRING "Create call/callee graphs (large)")

  find_program(DOT_PATH dot)

  if (DOT_PATH STREQUAL "DOT_PATH-NOTFOUND")
    message("Doxygen: graphviz not found - graphs disabled")
    set(DOC_GRAPHS "NO")
  endif()

  find_package(Doxygen)
  if(DOXYGEN_FOUND)
    configure_file("cmake/Doxyfile.in" "Doxyfile" @ONLY)
    configure_file("cmake/Doxygen.extra.css.in" "Doxygen.extra.css" @ONLY)
    add_custom_target(doc
      ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
      COMMENT "Generating API documentation with Doxygen.." VERBATIM)
  endif()
endif()


#-----------------------------------------------------------------------------
# Source Definitions

if(WIN32)
    if(NOT IDC_STATIC)
        add_definitions(-DIDC_STATIC=-1)
    endif()

    add_definitions(-DOT_COMPANYNAME="Open Transactions Community")
    add_definitions(-DOT_PRODUCTNAME="Open Transactions")
    add_definitions(-DOT_PRODUCTVERSION="${VERSION_MAJOR},${VERSION_MINOR},${VERSION_BUGFIX},0")
    add_definitions(-DOT_API_NAME="Open Transactions API")
    add_definitions(-DOT_LIBRARY_NAME="Open Transactions Library")
    add_definitions(-DOT_PROMPT_NAME="Open Transactions Prompt")
endif()

if(SIGNAL_HANLDER)
  add_definitions(-DOT_SIGNAL_HANDLING)
endif()

add_definitions(-DCHAISCRIPT_NO_THREADS)

add_definitions(-DOT_CRYPTO_USING_OPENSSL)

add_definitions(-DOT_CASH_USING_LUCRE)

#Keyrings
if(KEYRING_WINDOWS AND WIN32)
  add_definitions(-DOT_KEYRING_WINDOWS)
endif()

if(KEYRING_MAC AND APPLE)
  add_definitions(-DOT_KEYRING_MAC)
endif()

if(KEYRING_IOS)
  add_definitions(-DOT_KEYRING_IOS)
endif()

if(KEYRING_GNOME)
  add_definitions(-DOT_KEYRING_GNOME)
endif()

if(KEYRING_KWALLET)
  add_definitions(-DOT_KEYRING_KWALLET)
endif()

if(KEYRING_FLATFILE)
  add_definitions(-DOT_KEYRING_FLATFILE)
endif()

if(WIN32)
  add_definitions("-DEXPORT=__declspec(dllexport)")
else()
  add_definitions(-DEXPORT=)
endif()


#-----------------------------------------------------------------------------
# Set in-source Version
configure_file("include/opentxs/core/Version.hpp" "${CMAKE_CURRENT_BINARY_DIR}/include/opentxs/core/Version.hpp" @ONLY)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/include/opentxs/core/Version.hpp
        DESTINATION include/opentxs/core/
        COMPONENT dev)

#-----------------------------------------------------------------------------
# Build source

#Fix RPATH
if(APPLE)
  set(CMAKE_INSTALL_NAME_DIR @rpath)
endif()
if(NOT RPM)
  SET(CMAKE_SKIP_BUILD_RPATH  FALSE)
  if(NOT WIN32)
    include(GNUInstallDirs)
    set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
  endif()
endif()

if(UNIX)
  add_definitions(-DOT_PREFIX_PATH=\"${CMAKE_INSTALL_PREFIX}\")
endif()

add_subdirectory(deps)
add_subdirectory(src)
add_subdirectory(tests)
add_subdirectory(wrappers)


if (NOT ANDROID)
#-----------------------------------------------------------------------------
# Produce a cmake-package

include(CMakePackageConfigHelpers)
set(CMAKE_CONFIG_DEST "share/cmake/Modules")
set(OPENTXS_INCLUDE_DIRS "${CMAKE_INSTALL_PREFIX}/include")

export(TARGETS opentxs-core opentxs-client opentxs-ext opentxs-cash opentxs-basket bigint lucre FILE "${CMAKE_BINARY_DIR}/opentxsTargets.cmake")

configure_package_config_file(
       "cmake/opentxsConfig.cmake.in"
       "${CMAKE_BINARY_DIR}/opentxsConfig.cmake"
       INSTALL_DESTINATION ${CMAKE_CONFIG_DEST}
       PATH_VARS OPENTXS_INCLUDE_DIRS)

write_basic_package_version_file(
  "${CMAKE_CURRENT_BINARY_DIR}/opentxsConfigVersion.cmake"
  VERSION ${VERSION_STRING}
  COMPATIBILITY AnyNewerVersion)

install(EXPORT opentxsTargets
        DESTINATION ${CMAKE_CONFIG_DEST} FILE "opentxsTargets.cmake")

install(FILES
        "${CMAKE_CURRENT_BINARY_DIR}/opentxsConfig.cmake"
        "${CMAKE_CURRENT_BINARY_DIR}/opentxsConfigVersion.cmake"
        DESTINATION ${CMAKE_CONFIG_DEST}
        COMPONENT dev)


#-----------------------------------------------------------------------------
# Produce a pkg-config file


if(NOT WIN32)
	configure_file("cmake/opentxs.pc.in" "opentxs.pc" @ONLY)
	include(GNUInstallDirs)
	install(FILES "${CMAKE_CURRENT_BINARY_DIR}/opentxs.pc"
		DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
		COMPONENT main)
endif()


#-----------------------------------------------------------------------------
# Install

install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/
        DESTINATION include
        COMPONENT dev
        FILES_MATCHING PATTERN "*.hpp"
        PATTERN "Version.hpp" EXCLUDE)

install(FILES
        ${CMAKE_CURRENT_SOURCE_DIR}/deps/containers/simple_ptr.hpp
	${CMAKE_CURRENT_SOURCE_DIR}/deps/containers/containers_fixes.hpp
	${CMAKE_CURRENT_SOURCE_DIR}/deps/containers/exceptions.hpp
	${CMAKE_CURRENT_SOURCE_DIR}/deps/containers/copy_functors.hpp
	${CMAKE_CURRENT_SOURCE_DIR}/deps/containers/simple_ptr.tpp
	DESTINATION include/opentxs/core/containers
	COMPONENT dev)

install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/deps/irrxml/
        DESTINATION include/irrxml
        COMPONENT dev
        FILES_MATCHING PATTERN "*.hpp")

install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/scripts/ot/
        DESTINATION lib/opentxs
        COMPONENT dev
        FILES_MATCHING PATTERN "*.ot")

# opentxs CL client autocompletion
if(AUTOCOMPLETION)
  install(FILES
          ${CMAKE_CURRENT_SOURCE_DIR}/scripts/bash_completion.d/opentxs-bash-completion.sh
	  DESTINATION /etc/bash_completion.d/
          COMPONENT main)
endif()


#-----------------------------------------------------------------------------
# Uninstal
configure_file(
    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/uninstall.cmake.in"
    "${CMAKE_CURRENT_BINARY_DIR}/uninstall.cmake"
    IMMEDIATE @ONLY)

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

#-----------------------------------------------------------------------------
# Packaging
set(CPACK_GENERATOR "TGZ")
set(CPACK_ARCHIVE_COMPONENT_INSTALL ON)

set(CPACK_PACKAGE_VERSION ${VERSION_STRING})
set(CPACK_PACKAGE_NAME "opentxs")
set(CPACK_PACKAGE_CONTACT ${PACKAGE_CONTACT})
set(CPACK_PACKAGE_VENDOR ${PACKAGE_VENDOR})
set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}.${CMAKE_SYSTEM_PROCESSOR}")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Open Transactions library and command line client")
set(CPACK_PACKAGE_DESCRIPTION "
Open-Transactions democratizes financial and monetary actions.
You can use it for issuing currencies/stock, paying dividends, creating asset accounts, sending/receiving digital cash, writing/depositing cheques, cashier's cheques, creating basket currencies, trading on markets, scripting custom agreements, recurring payments, escrow, etc.
")

if(RPM)
  set(CPACK_GENERATOR "RPM")
  set(CPACK_PACKAGING_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
  set(CPACK_RPM_COMPONENT_INSTALL ON)
  set(CPACK_RPM_CHANGELOG_FILE "${CMAKE_CURRENT_SOURCE_DIR}/ChangeLog")
endif()

if(DEB)
  set(CPACK_GENERATOR "DEB")
  set(CPACK_DEB_COMPONENT_INSTALL ON)
  set(CPACK_DEBIAN_PACKAGE_DEPENDS "openssl, libprotobuf8")
  set(CPACK_DEBIAN_PACKAGE_PRIORITY "extra")
  set(CPACK_DEBIAN_PACKAGE_SECTION "utils")
  set(CPACK_DEBIAN_PACKAGE_HOMEPAGE ${OPEN_TRANSACTIONS_WEBSITE})
  set(CPACK_DEBIAN_PACKAGE_MAINTAINER ${PACKAGE_CONTACT})
endif()

include(CPack)
endif (NOT ANDROID)