cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
project(BillySheet LANGUAGES CXX)

file(GLOB_RECURSE SOURCE_HEADERS include/*.h include/*.hpp)

file(GLOB_RECURSE SOURCE_FILES src/*.cpp)

set(SOURCES
        ${SOURCE_HEADERS}
        ${SOURCE_FILES}
)

find_program(CCACHE_FOUND ccache)
if (CCACHE_FOUND)
    message(STATUS "ccache found !")
    set_property(GLOBAL PROPERTY C_COMPILER_LAUNCHER ccache)
    set_property(GLOBAL PROPERTY C_LINKER_LAUNCHER ccache)
    set_property(GLOBAL PROPERTY CXX_COMPILER_LAUNCHER ccache)
    set_property(GLOBAL PROPERTY CXX_LINKER_LAUNCHER ccache)
else ()
    message(STATUS "ccache not found")
endif ()

add_subdirectory(external/svector)

option(SPDLOG_ENABLE_PCH "Build static or shared library using precompiled header to speed up compilation time" ON)
option(SPDLOG_BUILD_WARNINGS "Enable compiler warnings" ON)
option(SPDLOG_PREVENT_CHILD_FD "Prevent from child processes to inherit log file descriptors" ON)
option(SPDLOG_NO_THREAD_ID "prevent spdlog from querying the thread id on each log call if thread id is not needed" ON)
option(SPDLOG_NO_TLS "prevent spdlog from using thread local storage" ON)
option(SPDLOG_NO_ATOMIC_LEVELS "prevent spdlog from using of std::atomic log levels (use only if your code never modifies log levels concurrently" ON)
add_subdirectory(external/spdlog)

set(JSON_BuildTests OFF CACHE INTERNAL "")
option(JSON_ImplicitConversions "Enable implicit conversions." OFF)
option(JSON_SystemInclude "Include as system headers (skip for clang-tidy)." ON)
add_subdirectory(external/json)

option(CATCH_INSTALL_DOCS "Install documentation alongside library" OFF)
option(CATCH_INSTALL_EXTRAS "Install extras alongside library" OFF)
add_subdirectory(external/catch2)


set(COMPILE_FLAGS
        -pipe
        -march=znver3 # change to native or your architecture.
        -mtune=znver3 # same as above
        -mrdseed # be careful about this, this is linked to the x86 architecture.
        -mrdrnd # same as above
        -Wall
        -Wextra
        -Wpedantic
        #	-Wpadded
        -pedantic
        $<$<CONFIG:Release>:-ffunction-sections -fdata-sections>
        -fuse-ld=gold
        -funroll-loops
        -fdevirtualize-at-ltrans
        -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
)
set(LINKER_OPTIONS
        -Wl,--sort-common,--as-needed$<$<CONFIG:Release>:,--gc-sections,--strip-all>
        -fuse-ld=gold
        -fdevirtualize-at-ltrans
)

set(LINKER_FLAGS
        jemalloc
)

option(ENABLE_COVERAGE "Enabling coverage" OFF)

if (${ENABLE_COVERAGE})
    message(STATUS "Coverage enabled")
    list(APPEND COMPILE_FLAGS --coverage)
    list(APPEND LINKER_OPTIONS --coverage)
    list(APPEND LINKER_FLAGS gcov)
endif ()

add_library(BillySheet SHARED ${SOURCES})

target_include_directories(BillySheet PRIVATE include include/imgui external/ImFileDialog)

set_target_properties(BillySheet spdlog svector PROPERTIES
        CXX_STANDARD 17
        CXX_STANDARD_REQUIRED ON
        CXX_EXTENSIONS OFF
        INTERPROCEDURAL_OPTIMIZATION ON
        # UNITY_BUILD ON
)

set_target_properties(spdlog svector PROPERTIES UNITY_BUILD ON)

target_compile_definitions(BillySheet PRIVATE
        $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>
        $<$<CONFIG:Debug>:SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_DEBUG>
        $<$<CONFIG:Release>:SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_ERROR>)

target_compile_definitions(spdlog PRIVATE $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)
target_compile_definitions(svector INTERFACE $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)

target_compile_options(spdlog PRIVATE ${COMPILE_FLAGS})
target_compile_options(svector INTERFACE ${COMPILE_FLAGS})
target_compile_options(BillySheet PRIVATE ${COMPILE_FLAGS})

target_link_options(spdlog PRIVATE ${LINKER_OPTIONS})
target_link_options(svector INTERFACE ${LINKER_OPTIONS})
target_link_options(BillySheet PRIVATE ${LINKER_OPTIONS})

target_link_libraries(spdlog PRIVATE ${LINKER_FLAGS})
target_link_libraries(svector INTERFACE ${LINKER_FLAGS})
target_link_libraries(BillySheet glfw
        spdlog::spdlog_header_only
        svector::svector
        nlohmann_json::nlohmann_json
        ${LINKER_FLAGS}
)

add_subdirectory("Unit testing")