# CMakeLists.txt

####################################################
# Written by JackCarterSmith, 2022
# This code is released under the RSE license.
####################################################


# CMake requirement and general configuration
cmake_minimum_required(VERSION 3.12)
cmake_policy(VERSION 3.12)
set(CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR})
if(DEFINED ENV{MS_COMPATIBLE})
	set(CMAKE_GNUtoMS ON)		# Enable compatibility level to exported libraries
endif()

include(CheckIncludeFile)
include(CheckCSourceCompiles)

add_definitions(-DCONF_NO_GL)	# Used for obj-lib to not compile GL part
#add_definitions(-DNO_PNG_SUPPORT)	# Can be used to disable code support for PNG exporting


# Project definition
if(DEFINED ENV{CI})		# Jenkins CI integration mode
	project(rse-terrain VERSION $ENV{CI_VERSION}.$ENV{CI_BUILD_NUMBER} DESCRIPTION "RogueSquadron Extractor - Terrain" LANGUAGES C)
	set(RSE_TER_NAME $ENV{CI_OUTPUT_NAME}-${PROJECT_VERSION})
else()					# Standalone project mode, should not be used for release.
	project(rse-terrain VERSION 1.0.0 DESCRIPTION "RogueSquadron Extractor - Terrain" LANGUAGES C)
	set(RSE_TER_NAME RSE_Terrain-${PROJECT_VERSION})
endif()
# Push compile infos to source
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/config.h.in ${CMAKE_CURRENT_SOURCE_DIR}/src/config.h @ONLY)


# Import needed packages and references their include path
find_package(ZLIB 1.2.11 EXACT REQUIRED)
include_directories(${ZLIB_INCLUDE_DIR})
find_package(PNG 1.6.37 EXACT REQUIRED)
include_directories(${PNG_INCLUDE_DIR})
#find_package(GLEW REQUIRED)				# Enable when GL rendering is ready
#include_directories(${GLEW_INCLUDE_DIR})


# Define src/headers files
FILE(GLOB_RECURSE RSE_TER_SOURCES src/*.c)
FILE(GLOB_RECURSE RSE_TER_HEADERS src/*.h)
SOURCE_GROUP("Source Files" FILES ${RSE_TER_SOURCES})
SOURCE_GROUP("Header Files" FILES ${RSE_TER_HEADERS})


# Building instructions for RSE-Terrain
if(DEFINED ENV{RSE-WS})
	set(CMAKE_BUILD_TYPE DEBUG)
endif()
#include_directories(${CMAKE_CURRENT_SOURCE_DIR})
add_executable(rse-terrain ${RSE_TER_SOURCES} ${RSE_TER_HEADERS})	# Set the inputs for the compiler (srcs&hrds)
set_property(TARGET rse-terrain PROPERTY C_STANDARD 90)
set_target_properties(rse-terrain PROPERTIES OUTPUT_NAME ${RSE_TER_NAME})	# Define the executable file name
# Link externals libraries to the linker
if(MSVC)
	# msvc does not append 'lib' - do it here to have consistent name
	#set_target_properties(rse-terrain PROPERTIES PREFIX "lib")
	set_target_properties(rse-terrain PROPERTIES IMPORT_PREFIX "lib")
	target_link_libraries(rse-terrain ${ZLIB_LIBRARIES} ${PNG_LIBRARIES} ${GLEW_LIBRARIES})
else()
	target_link_libraries(rse-terrain ${ZLIB_LIBRARIES} ${PNG_LIBRARIES} ${GLEW_LIBRARIES} m)
endif()


# GPG signature custom command
#add_custom_command(
#	OUTPUT ""
#	COMMAND gpg --batch --detach-sign
#				-o ${RSE_TER_NAME}_${CI_SYS_TARGET}.gpg
#				${RSE_TER_NAME}
#	DEPENDS ${RSE_TER_NAME}
#	VERBATIM
#)


# Install project executable
install(TARGETS rse-terrain
	RUNTIME DESTINATION bin
)