include config.mk

ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))

TEMPLATE_API = sternenblog/core.h config.h sternenblog/xml.h sternenblog/cgiutil.h sternenblog/timeutil.h sternenblog/stringutil.h

sternenblog.cgi: xml.o entry.o index.o stringutil.o cgiutil.o timeutil.o $(TEMPLATE).o main.o
	$(CC) $(CFLAGS) -o $@ $^

main.o: main.c sternenblog/core.h config.h
	$(CC) $(CFLAGS) -c -o main.o $<

$(TEMPLATE).o: $(TEMPLATE).c $(TEMPLATE_API)
	$(CC) $(CFLAGS) -I$(ROOT_DIR) -c -o $@ $<

entry.o: config.h sternenblog/entry.c sternenblog/entry.h

# only invoked if config.h does not exist
config.h:
	$(CP) config.example.h config.h

%.o: sternenblog/%.c sternenblog/%.h
	$(CC) $(CFLAGS) -c -o $@ $<

clean:
	$(RM) -rf doc/html
	$(RM) -rf doc/man/man3
	$(RM) -f sternenblog.cgi
	$(RM) -f $(TEMPLATE).o
	$(RM) -f *.o
	$(RM) -f assets/favicon.ico

doc:
	doxygen Doxyfile

install: assets/favicon.ico assets/sternenblog.css doc sternenblog.cgi
	# webroot
	$(INSTALL) -Dm755 sternenblog.cgi --target-directory $(PREFIX)$(WEB_PATH)/
	$(INSTALL) -Dm644 assets/sternenblog.css --target-directory $(PREFIX)$(WEB_PATH)/
	$(INSTALL) -Dm644 assets/favicon.ico --target-directory $(PREFIX)$(WEB_PATH)/
	# man pages
	$(INSTALL) -Dm644 doc/man/man1/sternenblog.cgi.1 --target-directory $(PREFIX)$(MAN_PATH)/man1/
	$(INSTALL) -Dm644 doc/man/man3/core.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/config.example.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/template.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/xml.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/cgiutil.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/entry.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/index.h.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	$(INSTALL) -Dm644 doc/man/man3/main.c.3 --target-directory $(PREFIX)$(MAN_PATH)/man3/
	# html documentation and examples
	$(INSTALL) -d $(PREFIX)$(DOC_PATH)
	$(CP) -r doc/html $(PREFIX)$(DOC_PATH)/html
	$(CP) -r doc/examples $(PREFIX)$(DOC_PATH)/examples

assets/favicon.ico:
	$(CONVERT) \
		-size 64x64 \
		canvas:black \
		-font "Noto-Emoji" \
		-pointsize 32 \
		-fill white \
		-draw "text -5,64 '⭐'" \
		-font "Noto-Sans" \
		-pointsize 32 \
		-fill white \
		-draw "text 30,64 'b'" \
		$@

.PHONY: clean doc install