.PHONY: verify-python-path

VPP_TEST_FAILED_DIR=/tmp/vpp-failed-unittests/

verify-python-path:
ifndef VPP_PYTHON_PREFIX
	$(error VPP_PYTHON_PREFIX is not set)
endif

.PHONY: verify-no-running-vpp

ifdef VPP_ZOMBIE_NOCHECK
VPP_PIDS=
else
VPP_PIDS=$(shell pgrep -d, -x vpp_main)
endif

ifeq ($(DEBUG),gdb)
FORCE_FOREGROUND=1
else ifeq ($(DEBUG),gdbserver)
FORCE_FOREGROUND=1
else
FORCE_FOREGROUND=0
endif

verify-no-running-vpp:
	@if [ "$(VPP_PIDS)" != "" ]; then \
		echo; \
		echo "*** Existing vpp processes detected (PID(s): $(VPP_PIDS)). Running tests under these conditions is not supported. ***"; \
		echo; \
		ps -fp $(VPP_PIDS);\
		echo; \
		false; \
	fi

UNITTEST_EXTRA_OPTS=
UNITTEST_FAILFAST_OPTS=

ifeq ($(FAILFAST),1)
UNITTEST_EXTRA_OPTS=-f
endif

ifneq ($(EXTERN_TESTS),)
UNITTEST_EXTRA_OPTS=$(UNITTEST_FAILFAST_OPTS) -d $(EXTERN_TESTS)
endif

PYTHON_VENV_PATH=$(VPP_PYTHON_PREFIX)/virtualenv
PYTHON_DEPENDS=faulthandler six scapy==2.3.3 pexpect subprocess32 cffi git+https://github.com/klement/py-lispnetworking@setup
SCAPY_SOURCE=$(shell find $(PYTHON_VENV_PATH) -name site-packages)
BUILD_COV_DIR=$(BR)/test-cov

GET_PIP_SCRIPT=$(VPP_PYTHON_PREFIX)/get-pip.py
PIP_INSTALL_DONE=$(VPP_PYTHON_PREFIX)/pip-install.done
PIP_PATCH_DONE=$(VPP_PYTHON_PREFIX)/pip-patch.done
PAPI_INSTALL_DONE=$(VPP_PYTHON_PREFIX)/papi-install.done

PAPI_INSTALL_FLAGS=$(PIP_INSTALL_DONE) $(PIP_PATCH_DONE) $(PAPI_INSTALL_DONE)

ifeq ($(PYTHON),)
PYTHON_INTERP=python2.7
else
PYTHON_INTERP=$(PYTHON)
endif

$(GET_PIP_SCRIPT):
	@mkdir -p $(VPP_PYTHON_PREFIX)
	@bash -c "cd $(VPP_PYTHON_PREFIX) && curl -O https://bootstrap.pypa.io/get-pip.py"

$(PIP_INSTALL_DONE): $(GET_PIP_SCRIPT)
	@virtualenv $(PYTHON_VENV_PATH) -p $(PYTHON_INTERP)
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && python $(GET_PIP_SCRIPT)"
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && pip install $(PYTHON_DEPENDS)"
	@touch $@

$(PIP_PATCH_DONE): $(PIP_INSTALL_DONE)
	@echo --- patching ---
	@sleep 1 # Ensure python recompiles patched *.py files -> *.pyc
	for f in $(CURDIR)/patches/scapy-2.3.3/*.patch ; do \
		echo Applying patch: $$(basename $$f) ; \
		patch -p1 -d $(SCAPY_SOURCE) < $$f ; \
	done
	@touch $@

$(PAPI_INSTALL_DONE): $(PIP_PATCH_DONE)
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && cd $(WS_ROOT)/src/vpp-api/python && python setup.py install"
	@touch $@

define retest-func
	@env VPP_TEST_FAILED_DIR=$(VPP_TEST_FAILED_DIR) scripts/setsid_wrapper.sh $(FORCE_FOREGROUND) $(PYTHON_VENV_PATH)/bin/activate python run_tests.py -d $(TEST_DIR) $(UNITTEST_EXTRA_OPTS)
	@env VPP_TEST_FAILED_DIR=$(VPP_TEST_FAILED_DIR) scripts/compress_failed.sh
endef

.PHONY: sanity

sanity: verify-no-running-vpp
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && python sanity_import_vpp_papi.py ||\
		(echo \"*******************************************************************\" &&\
		 echo \"* Sanity check failed, cannot import vpp_papi\" &&\
		 echo \"* to debug: \" &&\
		 echo \"* 1. enter test shell:   make test-shell\" &&\
		 echo \"* 2. execute debugger:   gdb python -ex 'run sanity_import_vpp_papi.py'\" &&\
	         echo \"*******************************************************************\" &&\
		 false)"
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && python sanity_run_vpp.py ||\
		(echo \"*******************************************************************\" &&\
		 echo \"* Sanity check failed, cannot run vpp\" &&\
	         echo \"*******************************************************************\" &&\
		 false)"

.PHONY: ext
ext:
	make -C ext

test: verify-python-path $(PAPI_INSTALL_DONE) ext sanity reset
	$(call retest-func)

retest: verify-python-path sanity reset
	$(call retest-func)

shell: verify-python-path $(PAPI_INSTALL_DONE)
	@echo "source $(PYTHON_VENV_PATH)/bin/activate;\
		echo '***';\
		echo VPP_TEST_BUILD_DIR=$(VPP_TEST_BUILD_DIR);\
		echo VPP_TEST_BIN=$(VPP_TEST_BIN);\
		echo VPP_TEST_PLUGIN_PATH=$(VPP_TEST_PLUGIN_PATH);\
		echo VPP_TEST_INSTALL_PATH=$(VPP_TEST_INSTALL_PATH);\
		echo EXTERN_TESTS=$(EXTERN_TESTS);\
		echo EXTERN_PLUGINS=$(EXTERN_PLUGINS);\
                echo EXTERN_COV_DIR=$(EXTERN_COV_DIR);\
		echo LD_LIBRARY_PATH=$(LD_LIBRARY_PATH);\
		echo '***';\
		exec </dev/tty" | bash -i

.PHONY: wipe doc

reset:
	@rm -f /dev/shm/vpp-unittest-*
	@rm -rf /tmp/vpp-unittest-*
	@rm -rf $(VPP_TEST_FAILED_DIR)
	@mkdir $(VPP_TEST_FAILED_DIR)

wipe: reset
	@rm -rf $(PYTHON_VENV_PATH)
	@rm -f $(PAPI_INSTALL_FLAGS)

doc: verify-python-path $(PIP_PATCH_DONE)
	@virtualenv $(PYTHON_VENV_PATH) -p $(PYTHON_INTERP)
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && pip install sphinx sphinx-rtd-theme"
	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && make -C doc WS_ROOT=$(WS_ROOT) BR=$(BR) NO_VPP_PAPI=1 html"

.PHONY: wipe-doc

wipe-doc:
	@make -C doc wipe BR=$(BR)

cov: wipe-cov reset verify-python-path $(PAPI_INSTALL_DONE)
	@lcov --zerocounters --directory $(VPP_TEST_BUILD_DIR)
	@test -z "$(EXTERN_COV_DIR)" || lcov --zerocounters --directory $(EXTERN_COV_DIR)
	$(call retest-func)
	@mkdir $(BUILD_COV_DIR)
	@lcov --capture --directory $(VPP_TEST_BUILD_DIR) --output-file $(BUILD_COV_DIR)/coverage.info
	@test -z "$(EXTERN_COV_DIR)" || lcov --capture --directory $(EXTERN_COV_DIR) --output-file $(BUILD_CO<style>
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