cmake_minimum_required(VERSION 3.1)
project (lagui)

if (POLICY CMP0072)
    set(OpenGL_GL_PREFERENCE GLVND)
endif()

SET(LAGUI_FONT_CUSTOM_PATH  $ENV{HOME}/.local/share/fonts/lagui CACHE STRING "Where to install lagui fonts")
if (NOT DEFINED ${LAGUI_FONT_CUSTOM_PATH})
    set(LAGUI_FONT_CUSTOM_PATH $ENV{HOME}/.local/share/fonts/lagui)
endif()

SET(LAGUI_USE_GLES false CACHE BOOL "Whether to use GLES in LaGUI")
if(${LAGUI_USE_GLES})
    add_definitions(-DLA_USE_GLES)
endif()

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR})

if(${LAGUI_ANDROID} EQUAL True)
    find_package(OpenGL REQUIRED)
    find_package(X11 REQUIRED)
    find_package(Freetype REQUIRED)
    find_package(GLEW REQUIRED)
    find_package(LuaJIT)
    find_package(PNG)
endif()

SET(LAGUI_USE_LUAJIT true CACHE BOOL "Whether to use LuaJIT in LaGUI")
if((${LuaJIT_FOUND}) AND (${LAGUI_USE_LUAJIT}))
    add_definitions(-DLA_WITH_LUAJIT)
endif()

SET(LAGUI_USE_PNG true CACHE BOOL "Whether to use PNG in LaGUI")
if(${LAGUI_USE_PNG})
    add_definitions(-DLA_WITH_PNG)
endif()

if(${LAGUI_ANDROID})
    add_definitions(-DLAGUI_ANDROID)
endif()

set(CMAKE_THREAD_PREFER_PTHREAD ON)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)

add_compile_options("$<$<C_COMPILER_ID:MSVC>:/utf-8>")
add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")
add_compile_options(-fpermissive
    -Wno-error=incompatible-function-pointer-types
    -Wno-error=int-conversion
)

file(GLOB SOURCE_FILES 
	./*.c ./*.cpp ./resources/*.c ./resources/*.cpp)

file(GLOB HEADER_FILES 
	./*.h ./*.hpp ./resources/*.h ./resources/*.hpp)

add_definitions(-DLAGUI_FONT_CUSTOM_PATH=\"${LAGUI_FONT_CUSTOM_PATH}\")
add_definitions(-w)

if(${LAGUI_ANDROID})
    INCLUDE_DIRECTORIES(${PNG_SRC_DIR})
    INCLUDE_DIRECTORIES(${FREETYPE_SRC_DIR}/include)
    INCLUDE_DIRECTORIES(${ANDROID_NDK}/sources/android/native_app_glue)
endif()

include_directories(
	${CMAKE_SOURCE_DIR}
	${X11_INCLUDE_DIR}
	${GLEW_INCLUDE_PATH}
	${GLM_INCLUDE_PATH}
	${FREETYPE_INCLUDE_DIRS}
    lagui
)

if(${LuaJIT_FOUND})
    include_directories(${LUA_INCLUDE_DIR})
endif()
if(${PNG_FOUND})
    include_directories(${LUA_INCLUDE_DIR})
endif()

if(WIN32)
list(APPEND SOURCE_FILES ./wintab/wintab_utils.c)
file(GLOB wintabfiles ./wintab/*.h )
list(APPEND HEADER_FILES ${wintabfiles})
include_directories(wintab)
endif()

list(APPEND SOURCE_FILES ./nanovg/nanovg.c)
file(GLOB nvgfiles ./nanovg/*.h )
list(APPEND HEADER_FILES ${nvgfiles})
include_directories(nanovg)

set(LAGUI_FONTS
    "fonts/NotoEmoji-Regular.ttf"
    "fonts/NotoSansCJK-Regular.ttc"
    "fonts/NotoSansMono-Regular.ttf"
    "fonts/NotoSansSymbols-Regular.ttf"
    "fonts/NotoSansSymbols2-Regular.ttf"
)

add_library(lagui ${HEADER_FILES} ${SOURCE_FILES})

execute_process(
    COMMAND git rev-parse --abbrev-ref HEAD
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    OUTPUT_VARIABLE LAGUI_GIT_BRANCH
	OUTPUT_STRIP_TRAILING_WHITESPACE)
	
execute_process(
    COMMAND git rev-parse --short=12 HEAD
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    OUTPUT_VARIABLE LAGUI_GIT_HASH
	OUTPUT_STRIP_TRAILING_WHITESPACE)

target_compile_definitions(lagui PRIVATE "-DLAGUI_GIT_BRANCH=\"${LAGUI_GIT_BRANCH}\"")
target_compile_definitions(lagui PRIVATE "-DLAGUI_GIT_HASH=\"${LAGUI_GIT_HASH}\"")

install(FILES ${HEADER_FILES} DESTINATION include/lagui)
install(TARGETS lagui EXPORT lagui-targets DESTINATION lib/lagui)
install(EXPORT lagui-targets DESTINATION lib/lagui)
install(FILES lagui-config.cmake DESTINATION lib/lagui)
install(FILES FindLuaJIT.cmake DESTINATION lib/lagui)
install(FILES ${LAGUI_FONTS} DESTINATION ${LAGUI_FONT_CUSTOM_PATH})