# Copyright (c) 2022 Status Research & Development GmbH. Licensed under
# either of:
# - Apache License, version 2.0
# - MIT license
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
BUILD_SYSTEM_DIR := vendor/nimbus-build-system
EXCLUDED_NIM_PACKAGES := vendor/nim-dnsdisc/vendor
LINK_PCRE := 0

# we don't want an error here, so we can handle things later, in the ".DEFAULT" target
-include $(BUILD_SYSTEM_DIR)/makefiles/variables.mk


ifeq ($(NIM_PARAMS),)
# "variables.mk" was not included, so we update the submodules.
GIT_SUBMODULE_UPDATE := git submodule update --init --recursive
.DEFAULT:
	+@ echo -e "Git submodules not found. Running '$(GIT_SUBMODULE_UPDATE)'.\n"; \
		$(GIT_SUBMODULE_UPDATE); \
		echo
# Now that the included *.mk files appeared, and are newer than this file, Make will restart itself:
# https://www.gnu.org/software/make/manual/make.html#Remaking-Makefiles
#
# After restarting, it will execute its original goal, so we don't have to start a child Make here
# with "$(MAKE) $(MAKECMDGOALS)". Isn't hidden control flow great?

else # "variables.mk" was included. Business as usual until the end of this file.


##########
## Main ##
##########
.PHONY: all test update clean v1 v2

# default target, because it's the first one that doesn't start with '.'
all: | v1 v2

test: | test1 test2

v1: | wakunode1 example1 sim1
v2: | wakunode2 example2 wakubridge chat2 chat2bridge

waku.nims:
	ln -s waku.nimble $@

update: | update-common
	rm -rf waku.nims && \
		$(MAKE) waku.nims $(HANDLE_OUTPUT)

clean:
	rm -rf build

# must be included after the default target
-include $(BUILD_SYSTEM_DIR)/makefiles/targets.mk


## Git version
GIT_VERSION ?= $(shell git describe --abbrev=6 --always --tags)
NIM_PARAMS := $(NIM_PARAMS) -d:git_version=\"$(GIT_VERSION)\"


##################
## Dependencies ##
##################
.PHONY: deps libbacktrace

deps: | deps-common nat-libs waku.nims


### nim-libbacktrace

# "-d:release" implies "--stacktrace:off" and it cannot be added to config.nims
ifeq ($(USE_LIBBACKTRACE), 0)
NIM_PARAMS := $(NIM_PARAMS) -d:debug -d:disable_libbacktrace
else
NIM_PARAMS := $(NIM_PARAMS) -d:release
endif

libbacktrace:
	+ $(MAKE) -C vendor/nim-libbacktrace --no-print-directory BUILD_CXX_LIB=0

clean-libbacktrace:
	+ $(MAKE) -C vendor/nim-libbacktrace clean $(HANDLE_OUTPUT)

# Extend deps and clean targets
ifneq ($(USE_LIBBACKTRACE), 0)
deps: | libbacktrace
endif

clean: | clean-libbacktrace


##################
## Experimental ##
##################
.PHONY: librln

EXPERIMENTAL ?= false
EXPERIMENTAL_PARAMS ?= $(EMPTY)

ifeq ($(EXPERIMENTAL), true)
RLN := true
endif

### RLN

LIBRLN_BUILDDIR := $(CURDIR)/vendor/zerokit

ifeq ($(OS),Windows_NT)
LIBRLN_FILE := rln.lib
else
LIBRLN_FILE := librln.a
endif

$(LIBRLN_BUILDDIR)/$(LIBRLN_FILE):
	echo -e $(BUILD_MSG) "$@" && \
		./scripts/build_rln.sh $(LIBRLN_BUILDDIR)

ifneq ($(RLN), true)
librln: ; # noop
else
EXPERIMENTAL_PARAMS += -d:rln --passL:$(LIBRLN_FILE) --passL:-lm
librln: $(LIBRLN_BUILDDIR)/$(LIBRLN_FILE)
endif

clean-librln:
	cargo clean --manifest-path vendor/zerokit/rln/Cargo.toml

# Extend clean target
clean: | clean-librln


#############
## Waku v2 ##
#############
.PHONY: test2 wakunode2 example2 sim2 scripts2 wakubridge chat2 chat2bridge

test2: | build deps librln
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim test2 $(NIM_PARAMS) $(EXPERIMENTAL_PARAMS) waku.nims

wakunode2: | build deps librln
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim wakunode2 $(NIM_PARAMS) $(EXPERIMENTAL_PARAMS) waku.nims

example2: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim example2 $(NIM_PARAMS) waku.nims

# TODO: Remove unused target
sim2: | build deps wakunode2
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim sim2 $(NIM_PARAMS) waku.nims

# TODO: Remove unused target
scripts2: | build deps wakunode2
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim scripts2 $(NIM_PARAMS) waku.nims

wakubridge: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim bridge $(NIM_PARAMS) waku.nims

chat2: | build deps librln
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim chat2 $(NIM_PARAMS) $(EXPERIMENTAL_PARAMS) waku.nims

chat2bridge: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim chat2bridge $(NIM_PARAMS) waku.nims


###################
## Waku v2 tools ##
###################
.PHONY: wakucanary networkmonitor

wakucanary: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim wakucanary $(NIM_PARAMS) waku.nims

networkmonitor: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim networkmonitor $(NIM_PARAMS) waku.nims


#################
## Waku legacy ##
#################
.PHONY: testwhisper test1 wakunode1 example1 sim1

testwhisper: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim testwhisper $(NIM_PARAMS) waku.nims

test1: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim test1 $(NIM_PARAMS) waku.nims

wakunode1: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim wakunode1 $(NIM_PARAMS) waku.nims

example1: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim example1 $(NIM_PARAMS) waku.nims

sim1: | build deps wakunode1
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim sim1 $(NIM_PARAMS) waku.nims


###################
## Documentation ##
###################
.PHONY: docs

# TODO: Remove unused target
docs: | build deps
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim doc --run --index:on --project --out:.gh-pages waku/waku.nim waku.nims


#####################
## Container image ##
#####################
# -d:insecure - Necessary to enable Prometheus HTTP endpoint for metrics
# -d:chronicles_colors:none - Necessary to disable colors in logs for Docker
DOCKER_IMAGE_NIMFLAGS ?= -d:chronicles_colors:none -d:insecure

# build a docker image for the fleet
docker-image: MAKE_TARGET ?= wakunode2
docker-image: DOCKER_IMAGE_TAG ?= $(MAKE_TARGET)-$(GIT_VERSION)
docker-image: DOCKER_IMAGE_NAME ?= statusteam/nim-waku:$(DOCKER_IMAGE_TAG)
docker-image:
	docker build \
		--build-arg="MAKE_TARGET=$(MAKE_TARGET)" \
		--build-arg="NIMFLAGS=$(DOCKER_IMAGE_NIMFLAGS)" \
		--build-arg="EXPERIMENTAL=$(EXPERIMENTAL)" \
		--label="commit=$(GIT_VERSION)" \
		--tag $(DOCKER_IMAGE_NAME) .

docker-push:
	docker push $(DOCKER_IMAGE_NAME)


##############
## Wrappers ##
##############
# TODO: Remove unused target
libwaku.so: | build deps deps2
	echo -e $(BUILD_MSG) "build/$@" && \
		$(ENV_SCRIPT) nim c --app:lib --noMain --nimcache:nimcache/libwaku $(NIM_PARAMS) -o:build/$@.0 wrappers/libwaku.nim && \
		rm -f build/$@ && \
		ln -s $@.0 build/$@

# libraries for dynamic linking of non-Nim objects
EXTRA_LIBS_DYNAMIC := -L"$(CURDIR)/build" -lwaku -lm

# TODO: Remove unused target
wrappers: | build deps librln libwaku.so
	echo -e $(BUILD_MSG) "build/C_wrapper_example" && \
		 $(CC) wrappers/wrapper_example.c -Wl,-rpath,'$$ORIGIN' $(EXTRA_LIBS_DYNAMIC) -g -o build/C_wrapper_example
	echo -e $(BUILD_MSG) "build/go_wrapper_example" && \
		go build -ldflags "-linkmode external -extldflags '$(EXTRA_LIBS_DYNAMIC)'" -o build/go_wrapper_example wrappers/wrapper_example.go #wrappers/cfuncs.go

endif # "variables.mk" was not included