# Minimum CMake required
cmake_minimum_required(VERSION 3.5)

if(WIN32)
  if(${CMAKE_VERSION} VERSION_LESS "3.8")
    message(WARNING "Your current cmake version is ${CMAKE_VERSION} which does not support setting the toolset architecture to x64. This may cause \"compiler out of heap space\" errors when building. Consider upgrading your cmake to > 3.8 and using the flag -Thost=x64 when running cmake.")
  else()
    if(NOT CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE OR NOT "${CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE}" STREQUAL "x64")
      message(WARNING "Your current cmake generator is set to use 32 bit toolset architecture. This may cause \"compiler out of heap space\" errors when building. Consider using the flag -Thost=x64 when running cmake.")
    endif()
  endif()
endif()

# Project
project(xavna C CXX)

set(xaVNA_VERSION_MAJOR 0)
set(xaVNA_VERSION_MINOR 1)
set(xaVNA_VERSION_STRING ${xaVNA_VERSION_MAJOR}.${xaVNA_VERSION_MINOR})

# Set C++11 as standard for the whole project
set(CMAKE_CXX_STANDARD 11)

if(UNIX)
  set(CMAKE_CXX_FLAGS "-O2 ${CMAKE_CXX_FLAGS}")
  set(CMAKE_CXX_FLAGS_DEBUG "-O2 -g ${CMAKE_CXX_FLAGS}")
endif()

if(NOT LIB_INSTALL_DIR)
    set(LIB_INSTALL_DIR lib)
endif()

if(NOT BIN_INSTALL_DIR)
    set(BIN_INSTALL_DIR bin)
endif()

# Set version
add_definitions(-DVERSION=\"${xaVNA_VERSION_STRING}\")
add_definitions(-DEIGEN_DONT_VECTORIZE -DEIGEN_DISABLE_UNALIGNED_ARRAY_ASSERT)

# CMake policies
cmake_policy(SET CMP0022 NEW)

# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)

# Position independent code
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# Local Include
include_directories(include)

# ==============================================================================
# Eigen3
# ==============================================================================
find_package(Eigen3 REQUIRED)
if(EIGEN3_FOUND)
  message(STATUS "  eigen3 version: ${EIGEN3_VERSION}")
  message(STATUS "  eigen3 includes: ${EIGEN3_INCLUDE_DIR}")
  include_directories(${EIGEN3_INCLUDE_DIR})
endif()

# ==============================================================================
# FFTW3
# ==============================================================================
find_package(FFTW3 REQUIRED)
if(FFTW3_FOUND)
  message(STATUS "Found FFTW3 (${FFTW3_VERSION})")
  message(STATUS "  fftw3 includes: ${FFTW3_INCLUDE_DIRS}")
  message(STATUS "  fftw3 libraries: ${FFTW3_LIBRARIES}")
  include_directories(${FFTW3_INCLUDE_DIR})
endif()

# ==============================================================================
# QT5 Charts (and QT5 subdependences)
# ==============================================================================
find_package(Qt5 COMPONENTS Core Gui Widgets Charts REQUIRED)
if(Qt5Charts_FOUND)
  message(STATUS "Found QT5 version: ${Qt5_VERSION}")
  message(STATUS "  qt5 charts dir: ${Qt5Charts_DIR}")
endif()

# ==============================================================================
# xaVNA subprojects
# ==============================================================================
add_subdirectory(libxavna)
add_subdirectory(libxavna/xavna_mock_ui)
add_subdirectory(vna_qt)