# For Debian currently with
#
#   cd build
#   cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
#   make
#   make test
#   make install
# See below option statements and the README for build information

cmake_minimum_required(VERSION 3.16)
project(wfa2lib)

set(CMAKE_CXX_STANDARD 17)

include(FeatureSummary)
include(GNUInstallDirs)

find_package(PkgConfig REQUIRED)

feature_summary(
  FATAL_ON_MISSING_REQUIRED_PACKAGES
  WHAT REQUIRED_PACKAGES_NOT_FOUND)

# ---- Options

option(OPENMP "Enable OpenMP" OFF) # enables WFA_PARALLEL
option(PROFILING "Enable profiling" OFF)
option(ASAN "Use address sanitiser" OFF)
option(EXTRA_FLAGS "Add optimization flags for C/C++ compiler" OFF)

# include(CheckIPOSupported) # adds lto
# check_ipo_supported(RESULT ipo_supported OUTPUT output)

# ---- Dependencies

if(OPENMP)
  include(FindOpenMP)
  set(OPTIMIZE_FLAGS "-DWFA_PARALLEL")
endif(OPENMP)

if(EXTRA_FLAGS)
  set(OPTIMIZE_FLAGS "${OPTIMIZE_FLAGS} ${EXTRA_FLAGS}")
endif(EXTRA_FLAGS)

find_package(Threads)
set_package_properties(Threads PROPERTIES TYPE REQUIRED)

# ---- Build switches
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
# set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ${ipo_supported})

if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release CACHE STRING
          "Choose the type of build, options are: Release|Debug|RelWithDebInfo (for distros)." FORCE)
endif()

if (${CMAKE_BUILD_TYPE} MATCHES Release)
  set(OPTIMIZE_FLAGS "${OPTIMIZE_FLAGS} -march=native -D_FILE_OFFSET_BITS=64")
endif()

if ((${CMAKE_BUILD_TYPE} MATCHES Release) OR (${CMAKE_BUILD_TYPE} MATCHES RelWithDebInfo))
  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS} ${OPTIMIZE_FLAGS}")
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS} ${OPTIMIZE_FLAGS}")
endif ()

if (${CMAKE_BUILD_TYPE} MATCHES "Debug")
  set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OPTIMIZE_FLAGS}")
  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OPTIMIZE_FLAGS}")
  add_definitions(-Wfatal-errors)
endif ()

if (ASAN)
  set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address  -fno-omit-frame-pointer -fno-common")
  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address  -fno-omit-frame-pointer -fno-common")
endif(ASAN)

if(PROFILING)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g")
endif(PROFILING)

if(GPROF)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pg")
endif(GPROF)

# ---- Include files

file(GLOB INCLUDES
  wavefront/*.h*
  )
file(GLOB UTILS_INCLUDES
  utils/*.h*
  )
file(GLOB ALIGNMENT_INCLUDES
  alignment/*.h*
  )
file(GLOB SYSTEM_INCLUDES
  system/*.h*
  )

set(wfa2lib_SOURCE
  wavefront/wavefront_align.c
  wavefront/wavefront_aligner.c
  wavefront/wavefront_attributes.c
  wavefront/wavefront_backtrace_buffer.c
  wavefront/wavefront_backtrace.c
  wavefront/wavefront_backtrace_offload.c
  wavefront/wavefront_bialign.c
  wavefront/wavefront_bialigner.c
  wavefront/wavefront.c
  wavefront/wavefront_components.c
  wavefront/wavefront_compute_affine2p.c
  wavefront/wavefront_compute_affine.c
  wavefront/wavefront_compute.c
  wavefront/wavefront_compute_edit.c
  wavefront/wavefront_compute_linear.c
  wavefront/wavefront_debug.c
  wavefront/wavefront_display.c
  wavefront/wavefront_extend.c
  wavefront/wavefront_heuristic.c
  wavefront/wavefront_pcigar.c
  wavefront/wavefront_penalties.c
  wavefront/wavefront_plot.c
  wavefront/wavefront_slab.c
  wavefront/wavefront_unialign.c
  system/mm_stack.c
  system/mm_allocator.c
  system/profiler_counter.c
  system/profiler_timer.c
  utils/bitmap.c
  utils/dna_text.c
  utils/sequence_buffer.c
  utils/vector.c
  utils/commons.c
  utils/heatmap.c
  utils/string_padded.c
  alignment/affine2p_penalties.c
  alignment/affine_penalties.c
  alignment/cigar.c
  alignment/score_matrix.c
)

add_library(wfa2_static
    ${wfa2lib_SOURCE}
    )
add_library(wfa2 SHARED ${wfa2lib_SOURCE})
set_target_properties(wfa2_static PROPERTIES OUTPUT_NAME wfa2)
set_target_properties(wfa2 PROPERTIES SOVERSION 0)
target_include_directories(wfa2 PUBLIC . wavefront utils)
target_include_directories(wfa2_static PUBLIC . wavefront utils)
add_library(wfa2::wfa2 ALIAS wfa2)
add_library(wfa2::wfa2_static ALIAS wfa2_static)

# ---- C++ binding library

set(wfa2cpp_SOURCE
  bindings/cpp/WFAligner.cpp
)
file(GLOB CPP_INCLUDES
  bindings/cpp/*.h*
  )
add_library(wfa2cpp_static STATIC ${wfa2cpp_SOURCE})
add_library(wfa2cpp SHARED ${wfa2cpp_SOURCE})
set_target_properties(wfa2cpp PROPERTIES SOVERSION 0)
set_target_properties(wfa2cpp_static PROPERTIES OUTPUT_NAME wfa2cpp)
target_link_libraries(wfa2cpp PUBLIC wfa2)
target_link_libraries(wfa2cpp_static PUBLIC wfa2)
add_library(wfa2::wfa2cpp ALIAS wfa2cpp)
add_library(wfa2::wfa2cpp_static ALIAS wfa2cpp_static)

# ---- Get version

file (STRINGS "VERSION" BUILD_NUMBER)
add_definitions(-DWFA2LIB_VERSION="${BUILD_NUMBER}")
add_definitions(-DVERSION="${BUILD_NUMBER}")

set(wfa2lib_LIBS
)

# add_dependencies(wfa2lib ${wfa2lib_DEPS})

# ---- Build all

# ---- Test

enable_testing()


function(add_wfa_test)
  add_test(
    NAME wfa2lib
    COMMAND ./tests/wfa.utest.sh
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
    )
endfunction()

add_wfa_test()

# ---- Install

# Do not install anything when used with FetchContent
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
  install(TARGETS wfa2_static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} )
  install(TARGETS wfa2 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} )

  install(FILES ${INCLUDES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wfa2lib/wavefront)
  install(FILES ${UTILS_INCLUDES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wfa2lib/utils)
  install(FILES ${ALIGNMENT_INCLUDES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wfa2lib/alignment)
  install(FILES ${SYSTEM_INCLUDES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wfa2lib/system)

  install(TARGETS wfa2cpp ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
  install(TARGETS wfa2cpp_static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
  install(FILES ${CPP_INCLUDES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wfa2lib/bindings/cpp)
endif()