#!/usr/bin/make -f

export DEB_BUILD_MAINT_OPTIONS = hardening=+all
CPPFLAGS:=$(shell dpkg-buildflags --get CPPFLAGS)
CXXFLAGS:=$(shell dpkg-buildflags --get CXXFLAGS)
LDFLAGS:=$(shell dpkg-buildflags --get LDFLAGS)

TMPBIN:=debian/tmp/usr/bin

HERA_FLAGS:=-DHERA_BOTTLENECK_INCLUDE_DIR=/usr/include/hera/bottleneck -DHERA_WASSERSTEIN_INCLUDE_DIR=/usr/include/hera/wasserstein

PY3VERS:=$(shell py3versions -vs)

DHFLAGS+=--buildsystem=cmake

# To fix #945226, we turn off parallel builds everywhere, except if
# someone explicitly wants them enabled by setting the environment
# variable ALLOW_PARALLEL.
ifeq (, $(ALLOW_PARALLEL))
	DHFLAGS+=--no-parallel
endif

# The buildds run out of memory on some architectures. On those, we
# tune the GCC garbage collector and force non-parallel building.
ifneq (, $(filter $(shell dpkg-architecture --query DEB_BUILD_ARCH),armhf arm64 i386 mips mipsel m68k powerpcspe x32))
	export DEB_CXXFLAGS_MAINT_APPEND = --param ggc-min-expand=5
# We have disabled parallel builds in general now. Consider disabling
# for certain architectures if it's reenabled globally.
#	DHFLAGS+=--no-parallel
endif

# Disable tests on i386 due to rounding problem in some. See upstream GitHub issue #118.
ifneq (, $(filter $(shell dpkg-architecture --query DEB_BUILD_ARCH),i386 x32))
	export DEB_BUILD_MAINT_OPTIONS := $(DEB_BUILD_MAINT_OPTIONS) nocheck
endif

%:
	dh $@ $(DHFLAGS) --with=python3

execute_before_dh_auto_configure:
	dh_auto_configure $(DHFLAGS) --builddirectory=build -- -DWITH_GUDHI_BENCHMARK=true -DWITH_GUDHI_EXAMPLE=true -DWITH_GUDHI_PYTHON=false -DWITH_GUDHI_TEST=true -DWITH_GUDHI_UTILITIES=true -DUSER_VERSION_DIR=userversion $(HERA_FLAGS)
	make -C build user_version
	for py3ver in $(PY3VERS) ; do \
		dh_auto_configure $(DHFLAGS) --builddirectory=build-py$$py3ver -- -DWITH_GUDHI_BENCHMARK=false -DWITH_GUDHI_EXAMPLE=false -DWITH_GUDHI_PYTHON=true -DWITH_GUDHI_TEST=true -DWITH_GUDHI_UTILITIES=false -DPython_ADDITIONAL_VERSIONS=$$py3ver -DUSER_VERSION_DIR=userversion -DWITH_GUDHI_PYTHON_RUNTIME_LIBRARY_DIRS=false $(HERA_FLAGS) ; \
		make -C build-py$$py3ver user_version ; \
	done

override_dh_auto_configure:
	dh_auto_configure $(DHFLAGS) --builddirectory=build/userversion -- -DWITH_GUDHI_BENCHMARK=true -DWITH_GUDHI_EXAMPLE=true -DWITH_GUDHI_PYTHON=false -DWITH_GUDHI_TEST=true -DWITH_GUDHI_UTILITIES=true $(HERA_FLAGS)
	for py3ver in $(PY3VERS) ; do \
		dh_auto_configure $(DHFLAGS) --builddirectory=build-py$$py3ver/userversion -- -DWITH_GUDHI_BENCHMARK=false -DWITH_GUDHI_EXAMPLE=false -DWITH_GUDHI_PYTHON=true -DWITH_GUDHI_TEST=true -DWITH_GUDHI_UTILITIES=false -DPython_ADDITIONAL_VERSIONS=$$py3ver -DWITH_GUDHI_PYTHON_RUNTIME_LIBRARY_DIRS=false $(HERA_FLAGS) ; \
	done

override_dh_auto_build-arch:
	dh_auto_build $(DHFLAGS) --builddirectory=build/userversion
	for py3ver in $(PY3VERS) ; do \
		dh_auto_build $(DHFLAGS) --builddirectory=build-py$$py3ver/userversion ; \
	done

override_dh_auto_build-indep:
	make -C build doxygen

override_dh_auto_test-indep:

override_dh_auto_test-arch:
# I believe this should be handled automatically by dh_auto_test,
# but see #901678.
ifeq (, $(filter nocheck,$(DEB_BUILD_MAINT_OPTIONS)))
	dh_auto_test $(DHFLAGS) --no-parallel --builddirectory=build/userversion
	for py3ver in $(PY3VERS) ; do \
		dh_auto_test $(DHFLAGS) --no-parallel --builddirectory=build-py$$py3ver/userversion ; \
	done
else
	@echo "Skipping tests due to nocheck flag."
endif

override_dh_auto_install-arch:
	dh_auto_install $(DHFLAGS) --builddirectory=build/userversion
	for py3ver in $(PY3VERS) ; do \
		dh_auto_install $(DHFLAGS) --builddirectory=build-py$$py3ver/userversion ; \
	done

	mv $(TMPBIN)/Nerve \
	   $(TMPBIN)/gudhi-nerve
	mv $(TMPBIN)/VoronoiGIC \
	   $(TMPBIN)/gudhi-voronoi-gic
	mv $(TMPBIN)/Witness_complex_strong_witness_persistence \
	   $(TMPBIN)/gudhi-witness-complex-strong-witness-persistence
	mv $(TMPBIN)/Witness_complex_weak_witness_persistence \
	   $(TMPBIN)/gudhi-witness-complex-weak-witness-persistence
	mv $(TMPBIN)/alpha_complex_3d_persistence \
	   $(TMPBIN)/gudhi-alpha-complex-3d-persistence
	mv $(TMPBIN)/alpha_complex_persistence \
	   $(TMPBIN)/gudhi-alpha-complex-persistence
	mv $(TMPBIN)/bottleneck_distance \
	   $(TMPBIN)/gudhi-bottleneck-distance
	mv $(TMPBIN)/cech_persistence \
	   $(TMPBIN)/gudhi-cech-persistence
	mv $(TMPBIN)/cubical_complex_persistence \
	   $(TMPBIN)/gudhi-cubical-complex-persistence
	mv $(TMPBIN)/off_file_from_shape_generator \
	   $(TMPBIN)/gudhi-off-file-from-shape-generator
	mv $(TMPBIN)/periodic_cubical_complex_persistence \
	   $(TMPBIN)/gudhi-periodic-cubical-complex-persistence
	mv $(TMPBIN)/rips_correlation_matrix_persistence \
	   $(TMPBIN)/gudhi-rips-correlation-matrix-persistence
	mv $(TMPBIN)/rips_distance_matrix_persistence \
	   $(TMPBIN)/gudhi-rips-distance-matrix-persistence
	mv $(TMPBIN)/rips_persistence \
	   $(TMPBIN)/gudhi-rips-persistence
	mv $(TMPBIN)/sparse_rips_persistence \
	   $(TMPBIN)/gudhi-sparse-rips-persistence
	mv $(TMPBIN)/distance_matrix_edge_collapse_rips_persistence \
	   $(TMPBIN)/gudhi-distance-matrix-edge-collapse-rips-persistence
	mv $(TMPBIN)/point_cloud_edge_collapse_rips_persistence \
	   $(TMPBIN)/gudhi-point-cloud-edge-collapse-rips-persistence

	mv $(TMPBIN)/GudhUI $(TMPBIN)/gudhui

override_dh_auto_install-indep:
	find src -type f -path '*/example/*' \( -name '*.cpp' -o \( -name '*.txt' -a ! -iname 'cmake*' \) \) -exec sh -c 'name=$$(echo $$0 | sed s/src\\/// | sed s/example\\///); install -D -m 644 $$0 debian/tmp/usr/share/doc/libgudhi-examples/$$name' {} \;

	# Remove installed information about Miniball header.
	rm build/userversion/include/gudhi/Miniball.COPYRIGHT
	rm build/userversion/include/gudhi/Miniball.README

override_dh_compress:
	dh_compress -X.cpp

override_dh_install:
	dh_install -X__pycache__ -X.pyc -X.pyo

override_dh_missing:
	dh_missing --list-missing

override_dh_python3:
	for py3ver in $(PY3VERS) ; do \
		dh_python3 -O--builddirectory=build-py$$py3ver/userversion ; \
	done