cmake_minimum_required(VERSION 3.2)

project(geocore C CXX)

set(CMAKE_CXX_STANDARD 14)

get_filename_component(GEOCORE_ROOT . ABSOLUTE)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${GEOCORE_ROOT}/cmake")

include(GeoCoreHelpers)

if (NOT SKIP_TESTS)
  set(SKIP_TESTS FALSE)
  ENABLE_TESTING()
  configure_gtest()
endif()


# TCMalloc Linking
add_library(tcmalloc_config INTERFACE)

option(USE_TCMALLOC "Link TCMalloc memory allocator" ON)
if (USE_TCMALLOC)
  find_package(tcmalloc)
  target_link_libraries(tcmalloc_config INTERFACE tcmalloc)
endif()


# Code Coverage Configuration
add_library(coverage_config INTERFACE)

option(CODE_COVERAGE "Enable coverage reporting" OFF)
if(CODE_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
  # Add required flags (GCC & LLVM/Clang)
  target_compile_options(coverage_config INTERFACE
    -O0        # no optimization
    -g         # generate debug info
    --coverage # sets all required flags
)
  if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.13)
    target_link_options(coverage_config INTERFACE --coverage)
  else()
    target_link_libraries(coverage_config INTERFACE --coverage)
  endif()
endif()

# Set build type:
if (NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE "Release")
endif()

if ("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
  add_definitions(-DDEBUG)
elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
  add_definitions(-DRELEASE)
elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo")
  add_definitions(-DRELEASE)
  add_compile_options(
    "-fno-omit-frame-pointer"
  )
else()
  message(FATAL_ERROR "Unknown build type: " ${CMAKE_BUILD_TYPE})
endif()

message("Build type: " ${CMAKE_BUILD_TYPE})
# End of setting build type


option(USE_ASAN "Enable Address Sanitizer" OFF)
option(USE_TSAN "Enable Thread Sanitizer" OFF)

if (CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND
    CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)
  message(FATAL_ERROR "Minimum supported g++ version is 7.0 yours is ${CMAKE_CXX_COMPILER_VERSION}")
endif()

if (PLATFORM_LINUX)
  option(USE_PPROF "Enable Google Profiler" OFF)
endif()

if (USE_ASAN)
  message("Address Sanitizer is enabled")
endif()

if (USE_TSAN)
  message("Thread Sanitizer is enabled")
endif()

if (USE_ASAN AND USE_TSAN)
  message(FATAL_ERROR "Can't use two different sanitizers together")
endif()

if (USE_PPROF)
  message("Google Profiler is enabled")
  add_definitions(-DUSE_PPROF)
endif()

set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# Set environment variables
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR})
set(LIBRARY_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR})
# End of setting environment variables

# Find installed packages
find_package(Threads)

# TODO: Uncomment these lines when XCode project is finally generated by CMake.
#init_boost()
#install_boost_headers()

find_package(Boost ${BOOST_VERSION} EXACT COMPONENTS system filesystem serialization iostreams program_options REQUIRED)
set(Boost_USE_MULTITHREADED ON)

include_directories(${CMAKE_HOME_DIRECTORY})
include_directories(SYSTEM ${Boost_INCLUDE_DIRS})

set(CMAKE_POSITION_INDEPENDENT_CODE ON)

if (USE_ASAN)
  add_compile_options(
    "-fsanitize=address"
    "-fno-omit-frame-pointer"
  )
endif()

if (USE_TSAN)
  add_compile_options(
    "-fsanitize=thread"
    "-fno-omit-frame-pointer"
  )
endif()


# Include subdirectories
add_subdirectory(3party/expat)
add_subdirectory(3party/icu)
add_subdirectory(3party/jansson)
add_subdirectory(3party/protobuf)
add_subdirectory(3party/succinct)

# Only options related to warnings should be placed here.
# Other options should be set before all add_subdirectory calls.
add_compile_options(
  "-Wall"
  "-Wextra"
  "-Werror"
)

add_clang_compile_options("-Wshorten-64-to-32")
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND
    CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0)
  add_gcc_cpp_compile_options("-Wno-noexcept-type")
endif()

add_subdirectory(base)
add_subdirectory(coding)
add_subdirectory(geometry)
add_subdirectory(indexer)
add_subdirectory(platform)
add_subdirectory(generator)
add_subdirectory(geocoder)


add_custom_target(BuildVersion ALL
  COMMAND ${CMAKE_COMMAND}
  ARGS
  -D MAPSME_CURRENT_PROJECT_ROOT=${GEOCORE_ROOT}
  -D PATH_WITH_BUILD_VERSION_HPP=${GEOCORE_ROOT}
  -D PROJECT_NAME=${PROJECT_NAME}
  -P ${GEOCORE_ROOT}/cmake/BuildVersion.cmake
)