DISTROS=debian10
VERSION=$(shell dpkg-parsechangelog --show-field Version)
PROJECTNAME=webserver
PLUGINS=static-files webbox cgi # weblog fcgi

CXX=clang++-10

ifeq ($(shell which $(CXX)),)
CXX=clang++
endif

ifeq ($(shell which $(CXX)),)
CXX=g++-9
endif

ifeq ($(CXXFLAGS),)
#CXXFLAGS=-O2 -DNDEBUG
CXXFLAGS=-O0 -g -D_DEBUG
endif
# -fprofile-instr-generate -fcoverage-mapping
# gcc:--coverage

CXXFLAGS+= -Wall -I. -DVERSION=\"$(VERSION)\"

CXXFLAGS+= -pthread
ifeq ($(CXX),clang++-10)
CXXFLAGS+=-std=c++20 #-stdlib=libc++
else
CXXFLAGS+=-std=c++17
endif

CXXTESTFLAGS=-Igoogletest/include -Igooglemock/include/ -Igoogletest -Igooglemock

LIBS=\
-lboost_context \
-lboost_coroutine \
-lboost_program_options \
-lboost_system \
-lboost_thread \
-lboost_filesystem \
-lboost_regex \
-lpthread \
-lssl -lcrypto \
-ldl

ifeq ($(CXX),clang++-10)
LIBS+= \
-fuse-ld=lld-10 \
-lstdc++
#-lc++ \
#-lc++abi
#-lc++fs
#-lstdc++fs
else
LIBS+= \
-lstdc++ \
-lstdc++fs
endif

PROGSRC=\
    base64.cpp \
    config.cpp \
    file.cpp \
    http.cpp \
    https.cpp \
    plugin.cpp \
    privileges.cpp \
    response.cpp \
    server.cpp

TESTSRC=\
    test-webserver.cpp \
    googlemock/src/gmock-all.cpp \
    googletest/src/gtest-all.cpp \
    $(PROGSRC)

SRC=$(PROGSRC) webserver.cpp

build: $(PROJECTNAME) test-$(PROJECTNAME)
	+set -e ; for i in $(PLUGINS) ; do make -C plugins/$$i ; done
	./test-$(PROJECTNAME)

all: build
	./webserver -c webserver.conf

# testsuite ----------------------------------------------
test-$(PROJECTNAME): $(TESTSRC:.cpp=.o)
	$(CXX) $(CXXFLAGS) $^ $(LIBS) -o $@

$(PROJECTNAME): $(SRC:.cpp=.o)
	$(CXX) $(CXXFLAGS) $^ $(LIBS) -o $@

dep: $(TESTSRC:.cpp=.d)

%.d: %.cpp
	$(CXX) $(CXXFLAGS) $(CXXTESTFLAGS) -MM -MP -MF $@ -c $<

%.o: %.cpp %.d
	$(CXX) $(CXXFLAGS) $(CXXTESTFLAGS) -c $< -o $@

googletest/src/%.o: googletest/src/%.cc
	$(CXX) $(CXXFLAGS) $(CXXTESTFLAGS) -c $< -o $@

# dependencies

ADD_DEP=Makefile

install:
	mkdir -p $(DESTDIR)/usr/bin
	cp webserver $(DESTDIR)/usr/bin

	mkdir -p $(DESTDIR)/usr/lib/webserver/plugins
	set -e ; for i in $(PLUGINS) ; do make -C plugins/$$i install ; done

	mkdir -p $(DESTDIR)/usr/local/lib/webserver/plugins

	mkdir -p $(DESTDIR)/etc
	cp webserver.conf $(DESTDIR)/etc/webserver.conf

# misc ---------------------------------------------------
deb:
	# build binary deb package
	dpkg-buildpackage -us -uc -rfakeroot

deb-src:
	dpkg-source -b .

$(DISTROS): deb-src
	sudo pbuilder build --basetgz /var/cache/pbuilder/$@.tgz --buildresult result/$@ ../webserver_$(VERSION).dsc

debs: $(DISTROS)

clean:
	-rm -f test-$(PROJECTNAME) $(PROJECTNAME)
	-rm -f plugins/*.so
	-find . -name '*.o' -o -name '*.d' -o -name '*.gcno' -o -name '*.gcda' | xargs rm -f
	for i in $(PLUGINS) ; do make -C plugins/$$i clean ; done

zip: clean
	-rm -f ../$(PROJECTNAME).zip
	zip -r ../$(PROJECTNAME).zip *
	ls -l ../$(PROJECTNAME).zip

.PHONY: clean all zip install deb deb-src debs all $(DISTROS)

-include $(wildcard $(SRC:.cpp=.d))