WORK_DIR = .
SRC_DIR = $(WORK_DIR)/src

CSH_FLAGS = \
	-O2 -g \
	-Wall -Wextra -Werror -pedantic \
	-MMD -MP \
	-I$(SRC_DIR)

CC = clang
CC_STD = -std=c11
CC_FLAGS = $(CC_STD) $(CSH_FLAGS)

CXX = clang++
CXX_STD = -std=c++11
CXX_FLAGS = -fno-rtti -fno-exceptions $(CXX_STD) $(CSH_FLAGS)

CARGO = cargo
RM = rm -rf
ECHO = echo
CMAKE = cmake

MI_DIR = $(WORK_DIR)/mimalloc
MI_BUILD = $(MI_DIR)/build
MI_INCLUDE = $(MI_BUILD)/include
MI_OBJECT = $(MI_BUILD)/mimalloc.o
MI_FLAGS = \
	-DMI_BUILD_STATIC=NO \
	-DMI_BUILD_SHARED=NO \
	-DMI_BUILD_OBJECT=YES \
	-DMI_BUILD_TESTS=NO \
	-DMI_USE_CXX=NO \
	-DMI_XMALLOC=YES \
	-DMI_OVERRIDE=YES

HASHMAP_DIR = $(WORK_DIR)/hashmap
HASHMAP_SOURCE = $(HASHMAP_DIR)/hashmap.c

WGPU_DIR = $(WORK_DIR)/wgpu
WGPU_MANIFEST = $(WGPU_DIR)/Cargo.toml
WGPU_INCLUDE = $(WGPU_DIR)/ffi
WGPU_WEBGPU_INCLUDE = $(WGPU_INCLUDE)/webgpu-headers
WGPU_BUILD = $(WGPU_DIR)/target/release
WGPU_LIB = $(WGPU_BUILD)/libwgpu_native.a
WGPU_MANIFEST_FLAG = --manifest-path $(WGPU_MANIFEST)
WGPU_FLAGS = --release $(WGPU_MANIFEST_FLAG)

CSH_FLAGS += \
	-I$(MI_INCLUDE) \
	-I$(HASHMAP_DIR) \
	-I$(WGPU_INCLUDE) \
	-I$(WGPU_WEBGPU_INCLUDE)

MI_GENERATOR = "Unix Makefiles"

XDG_SHELL_PROT = $(WORK_DIR)/xdg-shell.xml

WAYCLOCK = $(WORK_DIR)/wayclock
SOURCES = \
	$(SRC_DIR)/wayclock.cc \
	$(SRC_DIR)/xdg-shell.c \
	$(SRC_DIR)/wlstate.c \
	$(SRC_DIR)/vec.c \
	$(SRC_DIR)/events.c \
	$(SRC_DIR)/window.c \
	$(SRC_DIR)/graphics.cc \
	$(HASHMAP_SOURCE)

OBJECTS := $(SOURCES:.cc=.o)
OBJECTS := $(OBJECTS:.c=.o)
OBJECTS += $(MI_OBJECT)

DEPS = $(OBJECTS:.o=.d)

LIBRARIES = -lwayland-client -lvulkan $(WGPU_LIB)

all: $(WAYCLOCK)

$(WGPU_LIB):
	@echo " CARGO $@"
	@$(CARGO) build $(WGPU_FLAGS)

$(MI_BUILD):
	@echo " CMAKE $@"
	@$(CMAKE) $(MI_DIR) -B $@ -G $(MI_GENERATOR) $(MI_FLAGS)

$(MI_OBJECT): | $(MI_BUILD)
	@echo " MAKE $@"
	@$(MAKE) -C $(MI_BUILD)

$(WAYCLOCK): $(OBJECTS) $(LIBRARIES)
	@echo " LD $@"
	@$(CXX) $(CXX_FLAGS) -o $@ $^ $(LIBRARIES)

%.o: %.cc
	@echo " CXX $<"
	@$(CXX) $(CXX_FLAGS) -c -o $@ $<

%.o: %.c
	@echo " CC $<"
	@$(CC) $(CC_FLAGS) -c -o $@ $<

.PHONY: clean
clean:
	@$(CARGO) clean $(WGPU_MANIFEST_FLAG)
	@$(RM) $(OBJECTS) $(DEPS)
	@$(RM) $(WAYCLOCK)
	@$(RM) $(MI_BUILD)

-include $(DEPS)