find_headers = $(shell find src/$(1) -type f -name '*.h')

HEADERS_src_l1 := $(call find_headers,l1)
HEADERS_gen_l1 := $(HEADERS_src_l1) gen/l1/dorothy.txt

HEADERS_src_l1_5 = $(HEADERS_gen_l1) $(call find_headers,l1_5)
HEADERS_gen_l1_5 := $(HEADERS_src_l1_5) gen/l1_5/dorothy.txt

HEADERS_src_l2 := $(HEADERS_gen_l1_5) $(call find_headers,l2)
HEADERS_gen_l2 := $(HEADERS_src_l2) gen/l2/dorothy.txt

cflags := -Wall -Wextra -Werror=implicit-function-declaration -Werror=return-type -Wno-unused-parameter \
				--std=c99 -g -ggdb -O0 \
				-fno-trapping-math -D_POSIX_C_SOURCE=200112L -D_GNU_SOURCE
cc := gcc

wl_protocols := $(shell pkg-config --variable=pkgdatadir wayland-protocols)
libpipewire_flags := $(shell pkg-config --cflags --libs libpipewire-0.3)

out/l1/codegen: src/l1/anne/codegen.c $(HEADERS_src_l1)
	mkdir -p out/l1
	$(cc) $(cflags) -D PROTOTYPE1_L1_CODEGEN_BOOTSTRAP_USE_CHICKEN_VECU8 -o $@ $<

gen/l1/dorothy.txt: out/l1/codegen
	mkdir -p gen
	cd gen && ../out/l1/codegen

out/l1_4/t0: src/l1_4/tests/t0.c $(HEADERS_gen_l1)
	mkdir -p out/l1_4
	$(cc) $(cflags) -o $@ $<

out/l1_4/t1: src/l1_4/tests/t1.c $(HEADERS_gen_l1)
	mkdir -p out/l1_4
	$(cc) $(cflags) -o $@ $<


out/l1_5/codegen: src/l1_5/anne/codegen.c $(HEADERS_src_l1_5)
	mkdir -p out/l1_5
	$(cc) $(cflags) -o $@ $<

gen/l1_5/dorothy.txt: out/l1_5/codegen
	mkdir -p gen
	cd gen && ../out/l1_5/codegen

gen/l_wl_protocols/xdg-shell-client.h: $(wl_protocols)/stable/xdg-shell/xdg-shell.xml
	mkdir -p gen/l_wl_protocols
	wayland-scanner client-header $< $@

gen/l_wl_protocols/xdg-shell-private.c: $(wl_protocols)/stable/xdg-shell/xdg-shell.xml
	mkdir -p gen/l_wl_protocols
	wayland-scanner private-code $< $@

xdg_shell_private := gen/l_wl_protocols/xdg-shell-private.c
l_wl_protocols := gen/l_wl_protocols/xdg-shell-client.h $(xdg_shell_private)

out/l2/r0: src/l2/tests/r0/r0.c $(HEADERS_src_l2) $(l_wl_protocols)
	mkdir -p out/l2
	$(cc) $(cflags) -o $@ $< $(xdg_shell_private) -lvulkan -lm -lxkbcommon -lwayland-client

out/l2/r1: src/l2/tests/r1/r1.c $(HEADERS_src_l2) $(l_wl_protocols)
	mkdir -p out/l2
	$(cc) $(cflags) -o $@ $< $(xdg_shell_private) -lwayland-client -lrt -lxkbcommon -lm

out/l2/r2a: src/l2/tests/r2/r2a.c $(HEADERS_src_l2) $(l_wl_protocols)
	mkdir -p out/l2
	$(cc) $(cflags) -o $@ $< $(xdg_shell_private) -lwayland-client -lrt -lxkbcommon -lm $(libpipewire_flags)

out/l2/r3: src/l2/tests/r3/r3.c $(HEADERS_src_l2) $(l_wl_protocols)
	mkdir -p out/l2
	$(cc) $(cflags) -o $@ $< $(xdg_shell_private) -lwayland-client -lrt -lxkbcommon -lm -lvulkan

.PHONY: clean
clean:
	rm -rf gen out