# NOTE: these are needed by the configure.in inside the packages folder
N2N_VERSION_SHORT=@N2N_VERSION_SHORT@
GIT_COMMITS=@GIT_COMMITS@
GIT_DESCRIBE=$(shell git describe --always --dirty)

########

CC=@CC@
AR=@AR@

#Ultrasparc64 users experiencing SIGBUS should try the following gcc options
#(thanks to Robert Gibbon)
PLATOPTS_SPARC64=-mcpu=ultrasparc -pipe -fomit-frame-pointer -ffast-math -finline-functions -fweb -frename-registers -mapp-regs

N2N_OBJS_OPT=
CFLAGS=@CFLAGS@ -I ./include
LDFLAGS=@LDFLAGS@ -L .

OPENSSL_CFLAGS=$(shell pkg-config openssl; echo $$?)
ifeq ($(OPENSSL_CFLAGS), 0)
  CFLAGS+=$(shell pkg-config --cflags-only-I openssl)
endif

WARN=-Wall
CFLAGS+=$(DEBUG) $(OPTIMIZATION) $(WARN) $(OPTIONS) $(PLATOPTS)

INSTALL=install
MKDIR=mkdir -p
OS := $(shell uname -s)

INSTALL_PROG=$(INSTALL) -m755
INSTALL_DOC=$(INSTALL) -m644

# DESTDIR set in debian make system
PREFIX?=$(DESTDIR)/usr
#BINDIR=$(PREFIX)/bin
ifeq ($(OS),Darwin)
SBINDIR=$(PREFIX)/local/sbin
else
SBINDIR=$(PREFIX)/sbin
endif

MANDIR?=$(PREFIX)/share/man
MAN1DIR=$(MANDIR)/man1
MAN7DIR=$(MANDIR)/man7
MAN8DIR=$(MANDIR)/man8

N2N_LIB=libn2n.a
N2N_OBJS=$(patsubst src/%.c, src/%.o, $(wildcard src/*.c))
N2N_DEPS=$(wildcard include/*.h) $(wildcard src/*.c) Makefile

LDLIBS+=-ln2n
LDLIBS+=@N2N_LIBS@

#For OpenSolaris (Solaris too?)
ifeq ($(shell uname), SunOS)
LDLIBS+=-lsocket -lnsl
endif

APPS=edge
APPS+=supernode
APPS+=example_edge_embed_quick_edge_init
APPS+=example_edge_embed
APPS+=example_sn_embed

DOCS=edge.8.gz supernode.1.gz n2n.7.gz

.PHONY: steps build push all clean install tools test cover gcov build-dep
all: $(APPS) $(DOCS) tools

tools: $(N2N_LIB)
	$(MAKE) -C $@

src/edge.o: $(N2N_DEPS)
src/supernode.o: $(N2N_DEPS)
src/example_edge_embed_quick_edge_init.o: $(N2N_DEPS)
src/example_sn_embed.o: $(N2N_DEPS)
src/example_edge_embed.o: $(N2N_DEPS)

src/edge: $(N2N_LIB)
src/supernode: $(N2N_LIB)
src/example_edge_embed_quick_edge_init: $(N2N_LIB)
src/example_sn_embed: $(N2N_LIB)
src/example_edge_embed: $(N2N_LIB)

%: src/%
	cp $< $@

%.gz : %
	gzip -c $< > $@

$(N2N_LIB): $(N2N_OBJS)
	$(AR) rcs $(N2N_LIB) $(N2N_OBJS)
#	$(RANLIB) $@

test: tools
	tools/test_harness

# To generate coverage information, run configure with
# CFLAGS="-fprofile-arcs -ftest-coverage" LDFLAGS="--coverage"
# and run the desired tests.  Ensure that package gcovr is installed
# and then run "make cover"
cover:
	mkdir -p coverage
	gcovr -s --html --html-details --output=coverage/index.html

# Use coverage data to generate gcov text report files.
# Unfortunately, these end up in the wrong directory due to the
# makefile layout
# The steps to use this are similar to the "make cover" above
gcov:
	gcov $(N2N_OBJS)
	$(MAKE) -C tools gcov

# This is the superset of all packages that might be needed.
# It is a convinent target to use during development or from a CI/CD system
build-dep:
ifeq ($(OS),Linux)
	sudo apt install build-essential autoconf libcap-dev libzstd-dev gcovr
else
	echo Not attempting to handle build dependancies for non dpkg systems
endif

clean:
	rm -rf $(N2N_OBJS) $(N2N_LIB) $(APPS) $(DOCS) coverage/ *.dSYM *~
	rm -f tests/*.out src/*.gcno src/*.gcda
	$(MAKE) -C tools clean

install: edge supernode edge.8.gz supernode.1.gz n2n.7.gz
	echo "MANDIR=$(MANDIR)"
	$(MKDIR) $(SBINDIR) $(MAN1DIR) $(MAN7DIR) $(MAN8DIR)
	$(INSTALL_PROG) supernode $(SBINDIR)/
	$(INSTALL_PROG) edge $(SBINDIR)/
	$(INSTALL_DOC) edge.8.gz $(MAN8DIR)/
	$(INSTALL_DOC) supernode.1.gz $(MAN1DIR)/
	$(INSTALL_DOC) n2n.7.gz $(MAN7DIR)/
	$(MAKE) -C tools install

# Docker builder section
DOCKER_IMAGE_NAME=ntop/supernode
DOCKER_IMAGE_VERSION=$N2N_VERSION_SHORT
N2N_COMMIT_HASH=@GIT_REVISION@

default: steps

steps:
	if [ "$(TARGET_ARCHITECTURE)" = "arm32v7" ] || [ "$(TARGET_ARCHITECTURE)" = "" ]; then DOCKER_IMAGE_FILENAME="Dockerfile.arm32v7" DOCKER_IMAGE_TAGNAME=$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_VERSION)-arm32v7 make build; fi
	if [ "$(TARGET_ARCHITECTURE)" = "x86_64" ] || [ "$(TARGET_ARCHITECTURE)" = "" ]; then DOCKER_IMAGE_FILENAME="Dockerfile.x86_64" DOCKER_IMAGE_TAGNAME=$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_VERSION)-x86_64 make build; fi

build:
	$(eval OS := $(shell uname -s))
	$(eval ARCHITECTURE := $(shell export DOCKER_IMAGE_TAGNAME="$(DOCKER_IMAGE_TAGNAME)"; echo $$DOCKER_IMAGE_TAGNAME | grep -oe -.*))

	docker build --target builder --build-arg COMMIT_HASH=$(N2N_COMMIT_HASH) -t $(DOCKER_IMAGE_TAGNAME) -f image-platforms/$(DOCKER_IMAGE_FILENAME) .

	docker container create --name builder $(DOCKER_IMAGE_TAGNAME)
	if [ ! -d "./build" ]; then mkdir ./build; fi
	docker container cp builder:/usr/src/n2n/supernode ./build/supernode-$(OS)$(ARCHITECTURE)
	docker container cp builder:/usr/src/n2n/edge ./build/edge-$(OS)$(ARCHITECTURE)
	docker container rm -f builder

	docker build --build-arg COMMIT_HASH=$(N2N_COMMIT_HASH) -t $(DOCKER_IMAGE_TAGNAME) -f image-platforms/$(DOCKER_IMAGE_FILENAME) .
	docker tag $(DOCKER_IMAGE_TAGNAME) $(DOCKER_IMAGE_NAME):latest$(ARCHITECTURE)

push:
	if [ ! "$(TARGET_ARCHITECTURE)" = "" ]; then \
		docker push $(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_VERSION)-$(TARGET_ARCHITECTURE); \
		docker push $(DOCKER_IMAGE_NAME):latest-$(TARGET_ARCHITECTURE); \
	else \
		echo "Please pass TARGET_ARCHITECTURE, see README.md."; \
	fi

# End Docker builder section