### -*-makefile-*-

V			 = 0
v_tag			 = $(call v_tag_$V,$1)
v_tag_0			 = @printf "  %-8s %s\n" "$1" "$@";
V_AT			 = $(V_AT_$V)
V_AT_0			 = @

JDK			 = /usr/lib/jvm/default-java
JDK_PLAT		 = linux
INCLUDES		 = $(JDK)/include $(JDK)/include/$(JDK_PLAT)

PKGS			 = mLib catacomb
PKGS_CFLAGS		:= $(foreach p,$(PKGS),$(shell pkg-config --cflags $p))
PKGS_LIBS		:= $(foreach p,$(PKGS),$(shell pkg-config --libs $p))

CC			 = gcc
CFLAGS			 = -O2 -g -Wall -pedantic -Werror \
				-fPIC $(addprefix -I,$(INCLUDES))
CFLAGS			+= $(PKGS_CFLAGS)

LD			 = gcc
LIBS			 = $(PKGS_LIBS)
LDFLAGS.so		 = -shared

JAVAC			 = javac
JAVAFLAGS		 =

SCALAC			 = fsc
SCALAFLAGS		 = -optimise -Xlint -Xlint:-package-object-classes \
				-Yinline-warnings:false

## Hack around https://issues.scala-lang.org/browse/SI-9689
SCALAFLAGS		+= -Yno-load-impl-class

all::
.PHONY: all

OUTDIR			 = out/

out/%.o: %.c
	$(call v_tag,CC)mkdir -p $(OUTDIR) && $(CC) -c $(CFLAGS) -MMD -o$@ $<
CLEANFILES		+= $(OUTDIR)*.o $(OUTDIR)*.d

stamp			 = $(patsubst %,$(OUTDIR)%.stamp,$1)
CLASSDIR		 = $(OUTDIR)cls/
$(OUTDIR)%.stamp: %.java
	$(call v_tag,JAVAC)mkdir -p $(CLASSDIR) && \
		$(JAVAC) -d $(CLASSDIR) -cp $(CLASSDIR) $(JAVAFLAGS) $< && \
		echo built >$@
	$(V_AT)$(SCALAC) -reset
$(OUTDIR)%.stamp: %.scala
	$(call v_tag,SCALAC)mkdir -p $(CLASSDIR) && \
		$(SCALAC) -d $(CLASSDIR) -cp $(CLASSDIR) $(SCALAFLAGS) $< && \
		echo built >$@
CLEANFILES		+= $(OUTDIR)*.stamp
clean::; rm -rf $(CLASSDIR)

objects			 = $(patsubst %.c,$(OUTDIR)%$2,$1)

TARGETS += $(OUTDIR)libtoy.so
libtoy.so_SOURCES	 = jni.c
$(OUTDIR)libtoy.so: $(call objects,$(libtoy.so_SOURCES),.o)
	$(call v_tag,LD)$(LD) $(LDFLAGS.so) -o$@ $^ $(LIBS)

CLASSES			+= util
CLASSES			+= sys
sys_DEPS		 = util
CLASSES			+= admin
admin_DEPS		 = sys util
CLASSES			+= tar
tar_DEPS		 = util
CLASSES			+= keys
keys_DEPS		 = tar sys util
CLASSES			+= main
main_DEPS		 = sys

$(foreach c,$(CLASSES),$(eval $(call stamp,$c): $(call stamp,$($c_DEPS))))
TARGETS			+= $(call stamp,$(CLASSES))

all:: $(TARGETS)
ALLSOURCES		+= $(foreach t,$(TARGETS),$($t_SOURCES))

repl: $(TARGETS)
	scala -cp $(CLASSDIR) -Djava.library.path=$(OUTDIR)

clean::; rm -f $(CLEANFILES) $(TARGETS)
.PHONY: clean

-include $(call objects,$(ALLSOURCES),.d)