ifeq ($(shell uname -s), Darwin)
  HOST_PLATFORM = osx
else
  HOST_PLATFORM = linux
endif

PLATFORM ?= $(HOST_PLATFORM)

ifeq ($(PLATFORM),android)
  CONFIGURE_PLATFORM = android
  CONFIGURE_SUBPLATFORM = $(firstword $(SUBPLATFORM) arm-v7)
  CONFIGURE_INPUT = platform/android/scripts/configure.sh
  PLATFORM_OUTPUT = ./build/android-$(CONFIGURE_SUBPLATFORM)

  GYP_FLAVOR_SUFFIX = -android
  ENV = $(shell MASON_ANDROID_ABI=$(CONFIGURE_SUBPLATFORM) ./platform/android/scripts/toolchain.sh)

else
  CONFIGURE_PLATFORM = $(PLATFORM)
  CONFIGURE_SUBPLATFORM = $(shell uname -m)
  CONFIGURE_INPUT = platform/$(CONFIGURE_PLATFORM)/scripts/configure.sh
  PLATFORM_OUTPUT = ./build/$(PLATFORM)-$(CONFIGURE_SUBPLATFORM)
endif

# Text formatting
TEXT_BOLD = \033[1m
COLOR_GREEN = \033[32m
COLOR_CYAN = \033[36m
COLOR_PINK = \033[35m
FORMAT_END = \033[0m

# Never remove intermediate files
.SECONDARY:

#### Dependencies ##############################################################

ifneq (,$(wildcard .git/.))
.mason:
	git submodule update --init
else
.mason: ;
endif

CONFIGURE_OUTPUT = $(PLATFORM_OUTPUT)/config.gypi
.NOTPARALLEL: $(CONFIGURE_OUTPUT)
$(CONFIGURE_OUTPUT): $(CONFIGURE_INPUT) .mason configure
	@printf "$(TEXT_BOLD)$(COLOR_GREEN)* Running configure...$(FORMAT_END)\n"
	$(ENV) ./configure $< $@ $(CONFIGURE_PLATFORM) $(CONFIGURE_SUBPLATFORM)

#### Build files ###############################################################

GYP_FLAGS += -I$(CONFIGURE_OUTPUT)
GYP_FLAGS += -Dcoverage=$(ENABLE_COVERAGE)
GYP_FLAGS += -Dcxx_host=$(CXX_HOST)
GYP_FLAGS += -Goutput_dir=.
GYP_FLAGS += --depth=.
GYP_FLAGS += --generator-output=$(PLATFORM_OUTPUT)

.PHONY: Makefile/__project__
Makefile/__project__: $(CONFIGURE_OUTPUT)
	@printf "$(TEXT_BOLD)$(COLOR_GREEN)* Recreating project...$(FORMAT_END)\n"
	$(ENV) deps/run_gyp platform/$(PLATFORM)/platform.gyp $(GYP_FLAGS) -f make$(GYP_FLAVOR_SUFFIX)

Makefile/%: Makefile/__project__
	@printf "$(TEXT_BOLD)$(COLOR_GREEN)* Building target $*...$(FORMAT_END)\n"
	$(ENV) $(MAKE) -j$(JOBS) -C $(PLATFORM_OUTPUT) BUILDTYPE=$(BUILDTYPE) $*