################################
# Targets to build osg and osgearth
#
################################
#
# $ make all_osg
#
# This will:
# - clone the git repositories into the ./3rdparty directory
# - build osg in the build/3rdparty directory
# - intall osg in the build/3rdparty/install directory
# - create distribution files (tar.gz and md5) in the build/3rdparty/install directory
# - [TODO] upload distribution files to the librepilot tools repository
#
################################

################################
#
# common stuff
#
################################

OSG_BUILD_CONF := Release

OSG_NAME_PREFIX :=
OSG_NAME_SUFIX :=

################################
#
# osg
#
################################

OSG_VERSION := 3.5.5
OSG_GIT_TAG := OpenSceneGraph-$(OSG_VERSION)

OSG_BASE_NAME   := osg-$(OSG_VERSION)

ifeq ($(UNAME), Linux)
	ifeq ($(ARCH), x86_64)
		OSG_NAME := $(OSG_BASE_NAME)-linux-x64
	else
		OSG_NAME := $(OSG_BASE_NAME)-linux-x86
	endif
	OSG_CMAKE_GENERATOR := "Unix Makefiles"
	OSG_CMAKE_MAKE_PROGRAM := make
	OSG_WINDOWING_SYSTEM := "X11"
else ifeq ($(UNAME), Darwin)
	OSG_NAME := $(OSG_BASE_NAME)-clang_64
	OSG_CMAKE_GENERATOR := "Unix Makefiles"
	OSG_CMAKE_MAKE_PROGRAM := make
	OSG_WINDOWING_SYSTEM := "Cocoa"
else ifeq ($(UNAME), Windows)
	OSG_NAME := $(OSG_BASE_NAME)-$(QT_SDK_ARCH)
	OSG_CMAKE_GENERATOR := "MinGW Makefiles"
endif

OSG_NAME        := $(OSG_NAME_PREFIX)$(OSG_NAME)$(OSG_NAME_SUFIX)
OSG_SRC_DIR     := $(ROOT_DIR)/3rdparty/osg
OSG_BUILD_DIR   := $(BUILD_DIR)/3rdparty/$(OSG_NAME)
OSG_INSTALL_DIR := $(BUILD_DIR)/3rdparty/install/$(OSG_NAME)

.PHONY: osg
osg:
	@$(ECHO) "Building osg $(call toprel, $(OSG_SRC_DIR)) into $(call toprel, $(OSG_BUILD_DIR))"
	$(V1) $(MKDIR) -p $(OSG_BUILD_DIR)
	$(V1) ( $(CD) $(OSG_BUILD_DIR) && \
		if [ -n "$(OSG_BUILD_PATH)" ]; then \
			PATH=$(OSG_BUILD_PATH) ; \
		fi ; \
		$(CMAKE) -G $(OSG_CMAKE_GENERATOR) -DCMAKE_BUILD_TYPE=$(OSG_BUILD_CONF) \
			-DCMAKE_MAKE_PROGRAM=$(MAKE) \
			-DBUILD_OSG_APPLICATIONS=ON \
			-DBUILD_OSG_EXAMPLES=OFF \
			-DOSG_GL3_AVAILABLE=OFF \
			-DOSG_PLUGIN_SEARCH_INSTALL_DIR_FOR_PLUGINS=OFF \
			-DCMAKE_OSX_ARCHITECTURES="x86_64" \
			-DOSG_WINDOWING_SYSTEM=$(OSG_WINDOWING_SYSTEM) \
			-DCMAKE_INSTALL_NAME_DIR=@executable_path/../Plugins \
			-DCMAKE_INSTALL_PREFIX=$(OSG_INSTALL_DIR) $(OSG_SRC_DIR) && \
		$(MAKE) -j3 && \
		$(MAKE) install ; \
	)

.PHONY: package_osg
package_osg:
	@$(ECHO) "Packaging $(call toprel, $(OSG_INSTALL_DIR)) into $(notdir $(OSG_INSTALL_DIR)).tar"
	#$(V1) $(CP) $(ROOT_DIR)/make/3rdparty/osgearth/LibrePilotReadme.txt $(OSG_INSTALL_DIR)/
	$(V1) ( \
		$(CD) $(OSG_INSTALL_DIR)/.. && \
		$(TAR) cf $(notdir $(OSG_INSTALL_DIR)).tar $(notdir $(OSG_INSTALL_DIR)) && \
		$(ZIP) -f $(notdir $(OSG_INSTALL_DIR)).tar && \
		$(call MD5_GEN_TEMPLATE,$(notdir $(OSG_INSTALL_DIR)).tar.gz) ; \
	)

.NOTPARALLEL:
.PHONY: prepare_osg
prepare_osg: clone_osg

.PHONY: clone_osg
clone_osg:
	$(V1) if [ -d "$(OSG_SRC_DIR)" ]; then \
		$(ECHO) "Deleting osg clone..." ; \
		$(RM) -rf $(OSG_SRC_DIR) ; \
	fi
	@$(ECHO) "Cloning osg..."
	$(V1) $(GIT) clone --depth 1 --no-checkout -b $(OSG_GIT_TAG) git://github.com/openscenegraph/osg.git $(OSG_SRC_DIR)
	@$(ECHO) "Checkout osg $(OSG_GIT_TAG)"
	$(V1) ( $(CD) $(OSG_SRC_DIR) && $(GIT) checkout --force tags/$(OSG_GIT_TAG) ; )
	$(V1) ( $(CD) $(OSG_SRC_DIR) && $(GIT) apply $(ROOT_DIR)/make/3rdparty/osgearth/osg-fix-3ds-plugin.patch ; )

.PHONY: clean_osg
clean_osg:
	@$(ECHO) $(MSG_CLEANING) $(call toprel, $(OSG_BUILD_DIR))
	$(V1) [ ! -d "$(OSG_BUILD_DIR)" ] || $(RM) -r "$(OSG_BUILD_DIR)"
	@$(ECHO) $(MSG_CLEANING) $(call toprel, $(OSG_INSTALL_DIR))
	$(V1) [ ! -d "$(OSG_INSTALL_DIR)" ] || $(RM) -r "$(OSG_INSTALL_DIR)"

.PHONY: clean_all_osg
clean_all_osg: clean_osg
	@$(ECHO) $(MSG_CLEANING) $(call toprel, $(OSG_SRC_DIR))
	$(V1) [ ! -d "$(OSG_SRC_DIR)" ] || $(RM) -r "$(OSG_SRC_DIR)"


################################
#
# osgearth
#
################################
# TODO
# fix Debug build
# add option to not build the applications (in Debug mode in particular)

OSGEARTH_VERSION := 2.8
OSGEARTH_GIT_TAG := osgearth-$(OSGEARTH_VERSION)

OSGEARTH_BASE_NAME   := osgearth-$(OSGEARTH_VERSION)
OSGEARTH_BUILD_CONF  := $(OSG_BUILD_CONF)

# osgearth cmake script calls the osgversion executable to find the osg version
# this makes it necessary to have osg in the path (bin and lib) to make sure the correct one is found
ifeq ($(UNAME), Linux)
	ifeq ($(ARCH), x86_64)
		OSGEARTH_NAME := $(OSGEARTH_BASE_NAME)-linux-x64
	else
		OSGEARTH_NAME := $(OSGEARTH_BASE_NAME)-linux-x86
	endif
	OSGEARTH_CMAKE_GENERATOR := "Unix Makefiles"
	OSGEARTH_CMAKE_MAKE_PROGRAM := make
	OSGEARTH_BUILD_PATH := $(OSG_INSTALL_DIR)/bin:$(PATH)
	ifeq ($(ARCH), x86_64)
		OSGEARTH_LIB_PATH := $(OSG_INSTALL_DIR)/lib64
	else
		OSGEARTH_LIB_PATH := $(OSG_INSTALL_DIR)/lib
	endif
else ifeq ($(UNAME), Darwin)
	OSGEARTH_NAME := $(OSGEARTH_BASE_NAME)-clang_64
	OSGEARTH_CMAKE_GENERATOR := "Unix Makefiles"
	OSGEARTH_CMAKE_MAKE_PROGRAM := make
	OSGEARTH_BUILD_PATH := $(OSG_INSTALL_DIR)/bin:$(PATH)
	OSGEARTH_LIB_PATH := $(OSG_INSTALL_DIR)/lib
else ifeq ($(UNAME), Windows)
	OSGEARTH_NAME := $(OSGEARTH_BASE_NAME)-$(QT_SDK_ARCH)
	OSGEARTH_CMAKE_GENERATOR := "MinGW Makefiles"
	OSGEARTH_LIB_PATH := $(OSG_INSTALL_DIR)/lib
endif

OSGEARTH_NAME        := $(OSG_NAME_PREFIX)$(OSGEARTH_NAME)$(OSG_NAME_SUFIX)
OSGEARTH_SRC_DIR     := $(ROOT_DIR)/3rdparty/osgearth
OSGEARTH_BUILD_DIR   := $(BUILD_DIR)/3rdparty/$(OSGEARTH_NAME)
OSGEARTH_INSTALL_DIR := $(BUILD_DIR)/3rdparty/install/$(OSGEARTH_NAME)

.PHONY: osgearth
osgearth:
	@$(ECHO) "Building osgEarth $(call toprel, $(OSGEARTH_SRC_DIR)) into $(call toprel, $(OSGEARTH_BUILD_DIR))"
	$(V1) $(MKDIR) -p $(OSGEARTH_BUILD_DIR)
	$(V1) ( $(CD) $(OSGEARTH_BUILD_DIR) && \
		if [ -n "$(OSGEARTH_BUILD_PATH)" ]; then \
			PATH=$(OSGEARTH_BUILD_PATH) ; \
		fi ; \
		LD_LIBRARY_PATH=$(OSGEARTH_LIB_PATH) && \
		export DYLD_LIBRARY_PATH=$(OSGEARTH_LIB_PATH) && \
		unset OSG_NOTIFY_LEVEL && \
		$(CMAKE) -G $(OSGEARTH_CMAKE_GENERATOR) -DCMAKE_BUILD_TYPE=$(OSGEARTH_BUILD_CONF) \
			-DCMAKE_MAKE_PROGRAM=$(MAKE) \
			-DOSGEARTH_USE_QT=OFF \
			-DINSTALL_TO_OSG_DIR=OFF \
			-DOSG_DIR=$(OSG_INSTALL_DIR) \
			-DCMAKE_INCLUDE_PATH=$(OSG_INSTALL_DIR)/include \
			-DCMAKE_LIBRARY_PATH=$(OSGEARTH_LIB_PATH) \
			-DCMAKE_PREFIX_PATH=$(OSGEARTH_LIB_PATH) \
			-DCMAKE_OSX_ARCHITECTURES="x86_64" \
			-DCMAKE_INSTALL_NAME_DIR=@executable_path/../Plugins \
			-DCMAKE_INSTALL_PREFIX=$(OSGEARTH_INSTALL_DIR) $(OSGEARTH_SRC_DIR) && \
		$(MAKE) -j3 && \
		$(MAKE) install ; \
	)

.PHONY: package_osgearth
package_osgearth:
	@$(ECHO) "Packaging $(call toprel, $(OSGEARTH_INSTALL_DIR)) into $(notdir $(OSGEARTH_INSTALL_DIR)).tar"
	$(V1) ( \
		$(CD) $(OSGEARTH_INSTALL_DIR)/.. && \
		$(TAR) cf $(notdir $(OSGEARTH_INSTALL_DIR)).tar $(notdir $(OSGEARTH_INSTALL_DIR)) && \
		$(ZIP) -f $(notdir $(OSGEARTH_INSTALL_DIR)).tar && \
		$(call MD5_GEN_TEMPLATE,$(notdir $(OSGEARTH_INSTALL_DIR)).tar.gz) ; \
	)

.NOTPARALLEL:
.PHONY: prepare_osgearth
prepare_osgearth: clone_osgearth

.PHONY: clone_osgearth
clone_osgearth:
	$(V1) if [ -d "$(OSGEARTH_SRC_DIR)" ]; then \
		$(ECHO) "Deleting osgearth clone..." ; \
		$(RM) -rf $(OSGEARTH_SRC_DIR) ; \
	fi
	@$(ECHO) "Cloning osgearth..."
	$(V1) $(GIT) clone --depth 1 --no-checkout -b $(OSGEARTH_GIT_TAG) git://github.com/gwaldron/osgearth.git $(OSGEARTH_SRC_DIR)
	@$(ECHO) "Checkout osgearth $(OSGEARTH_GIT_TAG)"
	$(V1) ( $(CD) $(OSGEARTH_SRC_DIR) && $(GIT) checkout --force tags/$(OSGEARTH_GIT_TAG) ; )
	$(V1) ( $(CD) $(OSGEARTH_SRC_DIR) && $(GIT) apply $(ROOT_DIR)/make/3rdparty/osgearth/osgearth-remove-deprecated-call.patch ; )
	$(V1) ( $(CD) $(OSGEARTH_SRC_DIR) && $(GIT) apply $(ROOT_DIR)/make/3rdparty/osgearth/osgearth-geos-3_6_1-support.patch ; )

.PHONY: clean_osgearth
clean_osgearth:
	@$(ECHO) $(MSG_CLEANING) $(call toprel, $(OSGEARTH_BUILD_DIR))
	$(V1) [ ! -d "$(OSGEARTH_BUILD_DIR)" ] || $(RM) -r "$(OSGEARTH_BUILD_DIR)"
	@$(ECHO) $(MSG_CLEANING) $(call toprel, $(OSGEARTH_INSTALL_DIR))
	$(V1) [ ! -d "$(OSGEARTH_INSTALL_DIR)" ] || $(RM) -r "$(OSGEARTH_INSTALL_DIR)"

.PHONY: clean_all_osgearth
clean_all_osgearth: clean_osgearth
	@$(ECHO) $(MSG_CLEANING) $(call toprel, $(OSGEARTH_SRC_DIR))
	$(V1) [ ! -d "$(OSGEARTH_SRC_DIR)" ] || $(RM) -r "$(OSGEARTH_SRC_DIR)"

################################
#
# all
#
################################

.NOTPARALLEL:
.PHONY: all_osg
all_osg: prepare_osg prepare_osgearth osg osgearth package_osg package_osgearth