CCOPTS = --std=gnu99 -Wall -Werror -O2
.PHONY: src

all:
	$(error Must specify a target (adoc, rst, or src))

validate:
ifndef SRC
	$(error Variable SRC must be defined)
endif
ifndef DEST
	$(error Variable DEST must be defined)
endif

adoc: validate
	printf '<h1>%s</h1>\n' "$(shell head -n1 $(SRC))" > "$(DEST)"
	asciidoc -s \
		-a sectlinks \
		-b html5 \
		-o - "$(SRC)" >> "$(DEST)"

rst: validate
	rst2html5.py \
		--initial-header-level=2 \
		--cloak-email-addresses \
		--template "res/rst_template.txt" "$(SRC)" "$(DEST)"
	printf '<div class="paragraph datelastedit"><p>Last edited: %s</p></div>\n' \
		"$(shell date '+%F %T %Z')" >> "$(DEST)"

md: validate
	cmark --to html "$(SRC)" > "$(DEST)"
	printf '<div class="paragraph datelastedit"><p>Last edited: %s</p></div>\n' \
		"$(shell date '+%F %T %Z')" >> "$(DEST)"

src:
	if [ ! -d obj ]; then mkdir obj; fi
	cc $(CCOPTS) src/common.c -c -o obj/common.o
	cc $(CCOPTS) src/cgi.c -c -o obj/cgi.o
	cc $(CCOPTS) src/j2.c -c -o obj/j2.o
	cc $(CCOPTS) src/main.c obj/*.o -o index

test: src
	if [ ! -d tests/obj ]; then mkdir tests/obj; fi
	cc $(CCOPTS) tests/assert.c -c -o tests/obj/assert.o
	cc $(CCOPTS) obj/*.o tests/obj/*.o tests/main.c -o tests/runtests
	tests/runtests

clean:
	if [ -d obj ]; then rm -r obj/*; fi
	rm -f index