# Author Yannis Gerlach

# `make clean all` nicht mit -j verwenden! -> race condition im make file
# statdessen: `make clean; make all -j` verwenden

NAME = chac
NAMETEST = test
CFLAGS = -O2 -g -pipe -Wall -Wextra -Wno-unused-parameter -Wpedantic # -rdynamic
CXX = gcc
SRCF = src/
BUILDDIR = build/
TESTF = tests/
DEPF = $(BUILDDIR)deps/
INCF = inc/
INCFS = $(shell find $(INCF) -type d)

TPF = ./thirdparty/
OPENVRPATH ?= $(TPF)openvr/bin/linux64/
RAWDRAWF = $(TPF)rawdraw/

INCLUDES += -I$(RAWDRAWF) -I$(TPF)openvr/headers/

LDFLAGS = -lX11 -lm -lpthread -lXinerama -lXext -lGL -L$(TPF)openvr/bin/linux64/ -lopenvr_api
DEFINES = ENABLE_DEBUG=1

SRCFILES = $(shell find $(SRCF) -name "*.c")
OBJFILES = $(patsubst $(SRCF)%, $(BUILDDIR)%, $(patsubst %.c, %.o, $(SRCFILES)))
DEPFILES = $(wildcard $(DEPF)*.d)

SOURCEDIRS = $(shell find $(SRCF) -type d -printf "%p/\n")
BUILDDIRS = $(patsubst $(SRCF)%, $(BUILDDIR)%, $(SOURCEDIRS))

OBJFILESTEST = $(filter-out $(BUILDDIR)main.o, $(OBJFILES))

INCLUDES += $(addprefix -I, $(INCFS))
CFLAGS += $(addprefix -D, $(DEFINES))

all: $(NAME) # runtest

$(NAME): $(BUILDDIRS) $(DEPF) $(OBJFILES)
	@echo "Linking $@"
	$(CXX) $(CFLAGS) -o $@ $(filter %.o, $^) $(filter %.a, $^) $(LDFLAGS)

$(BUILDDIR)%.o: $(SRCF)%.c
	@echo "Compiling: $@"
	@$(CXX) $(CFLAGS) $(INCLUDES) $< -MM -MT $@ > $(DEPF)$(subst /,_,$*).d
	@$(CXX) -c -o $@ $(CFLAGS) $(INCLUDES) $<

$(NAME)_strip: $(NAME)
	@echo "Strip $<"
	@strip -o $@ $<

%/:
	mkdir -p $@

clean-depends:
	$(RM) -r $(DEPF)

clean:
	$(RM) -r $(NAME) $(BUILDDIR) $(NAMETEST) $(NAME)_strip

$(NAMETEST): $(BUILDDIRS) $(DEPF) $(TESTF)*.c $(OBJFILESTEST)
	@echo "Compiling tests"
	@$(CXX) -o $@ $(filter %.o, $^) $(filter %.c, $^) $(CFLAGS) -I$(SRCF) $(INCLUDES) $(LDFLAGS)

runtest: $(NAMETEST)
	@echo "Running tests"
	./$<

# fix assets :
# find assets/ -name '*.*' -exec sh -c 'a=$(echo "$0" | sed -r "s/([^.]*)\$/\L\1/"); [ "$a" != "$0" ] && mv "$0" "$a" ' {} \;

.PHONY: clean all $(NAMETEST) clean-depends runtest

include $(DEPFILES)