export PATH:= $(abspath bin):$(PATH)

.PHONY: all
all: 80columns-compressed.prg 80c2-compressed.prg 80c3-compressed.prg 80c4-compressed.prg
all: 80colreu-compressed.prg 80r2-compressed.prg 80r3-compressed.prg 80r4-compressed.prg
all: charset.prg charset2.prg charset3.prg charset4.prg

ifneq ($(shell which c1541 2>/dev/null),)
all: 80columns.d64
endif

80columns.d64: 80columns-compressed.prg 80colreu-compressed.prg charset.prg charset2.prg charset3.prg charset4.prg
	rm -f $@
	c1541 -format 80columns,80 d64 80columns.d64.tmp \
		$(foreach fn,$^,-write $(fn) $(patsubst %-compressed,%,$(patsubst %.prg,%,$(fn))))
	mv -f 80columns.d64.tmp 80columns.d64

EXOMIZER_SFX := exomizer sfx 51200 -q -n -T4 -M256 -Di_perf=2
.INTERMEDIATE: charset.bin
charset.prg: charset.bin
	(printf '\0\320'; cat $<) > $@.tmp
	$(EXOMIZER_SFX) -o $@ $@.tmp
	rm -f $@.tmp

charset.bin: charset.o charset.cfg
	ld65 -C charset.cfg $< -o $@

charset%.prg: charset%.bin
	(printf '\0\320'; cat $<) > $@.tmp
	$(EXOMIZER_SFX) -o $@ $@.tmp
	rm -f $@.tmp

charset%.bin: charset%.o charset.cfg
	ld65 -C charset.cfg $< -o $@

%-compressed.prg: %-uncompressed.prg
	$(EXOMIZER_SFX) -o $@ $<

%-uncompressed.prg: %.bin
	(printf '\0\310'; cat $<) > $@

.PHONY: update-font-images
update-font-images: charset.bin charset2.bin charset3.bin charset4.bin mkfontimg.py
	python3 mkfontimg.py -l charset.bin  img/t1.png
	python3 mkfontimg.py    charset.bin  img/g1.png
	python3 mkfontimg.py -l charset2.bin img/t2.png
	python3 mkfontimg.py    charset2.bin img/g2.png
	python3 mkfontimg.py -l charset3.bin img/t3.png
	python3 mkfontimg.py    charset3.bin img/g3.png
	python3 mkfontimg.py -l charset4.bin img/t4.png
	python3 mkfontimg.py    charset4.bin img/g4.png

.INTERMEDIATE: 80colreu.bin
80colreu.bin: 80colreu.o charset.o 80columns.cfg
	ld65 -C 80columns.cfg $(filter %.o,$^) -o $@ --mapfile ${@:.bin=.map}

.INTERMEDIATE: 80columns.bin
80columns.bin: 80columns.o charset.o 80columns.cfg
	ld65 -C 80columns.cfg $(filter %.o,$^) -o $@ --mapfile ${@:.bin=.map}

80r%.bin: 80colreu.o charset%.o 80columns.cfg
	ld65 -C 80columns.cfg $(filter %.o,$^) -o $@ --mapfile ${@:.bin=.map} --dbgfile ${@:.bin=.dbg}

80c%.bin: 80columns.o charset%.o 80columns.cfg
	ld65 -C 80columns.cfg $(filter %.o,$^) -o $@ --mapfile ${@:.bin=.map} --dbgfile ${@:.bin=.dbg}

80r%.bin: 80colreu.o charset%.o 80columns.cfg
	ld65 -C 80columns.cfg $(filter %.o,$^) -o $@ --mapfile ${@:.bin=.map} --dbgfile ${@:.bin=.dbg}

80colreu.s: 80columns.s

80colreu.s: 80columns.s

%.o: %.s
	ca65 -o $@ $< --debug --listing ${@:.o=.lst}

.PHONY: clean
clean:
	rm -f *.lst *.map *.prg *.bin *.o 80columns.d64

.PHONY: toolchain
toolchain: toolchain-cc65 toolchain-exomizer

.PHONY: toolchain-cc65
toolchain-cc65:
	[ -d cc65/src ] || git submodule update --init cc65

	$(MAKE) -C cc65 CC=cc bin

	mkdir -p bin

	cp cc65/bin/ca65 bin/
	cp cc65/bin/ld65 bin/

.PHONY: toolchain-exomizer
toolchain-exomizer:
	[ -d exomizer/src ] || git submodule update --init exomizer

	$(MAKE) -C exomizer/src CFLAGS="-Wall -Wstrict-prototypes -pedantic -O3"

	mkdir -p bin

	cp exomizer/src/exomizer bin/

	# have to do this, or git will report untracked files
	(cd exomizer && git clean -dxf)