# Variables
PROJECT_NAME := cx9261a_c
BUILD_DIR := build
OUTPUT_DIR := output
ARCHS := cortex-r5 cortex-a9 cortex-a53
VERSIONS := debug release

# Compiler and options
CC := arm-none-eabi-gcc
CXX := arm-none-eabi-g++
AR := arm-none-eabi-ar
CXXFLAGS := -static -static-libstdc++ -std=c++17 -fPIC -Wl,--as-needed \
			-Wall -Wextra \
			-fmessage-length=0 -mfpu=vfpv3 -mfloat-abi=hard \
			-I. -I./cx9261A_api
CFLAGS := -std=c17 -Wall -Wextra \
			-fmessage-length=0 -mfpu=vfpv3 -mfloat-abi=hard \
			-I.
DEBUG_FLAGS := -fdebug-prefix-map=$(CURDIR)/=../dbg/ \
			-fdebug-prefix-map=$(CURDIR)/cx9261A_api/=../dbg/ \
			-g -O0 -DUSE_LOGGING
RELEASE_FLAGS := -O3
CXXFLAGS_DEBUG := $(CXXFLAGS) $(DEBUG_FLAGS)
CXXFLAGS_RELEASE := $(CXXFLAGS) $(RELEASE_FLAGS)
CFLAGS_DEBUG := $(CFLAGS) $(DEBUG_FLAGS)
CFLAGS_RELEASE := $(CFLAGS) $(RELEASE_FLAGS)

# Collect source files
SRCS := $(CURDIR)/cx9261adriver_c.cpp $(CURDIR)/cx9261A_api/cx9261adriver.cpp
TEST_SRC := ld_test.c
PACKAGE_HEADERS := ./cx9261adriver_c.h

# Default target
all: $(foreach arch, $(ARCHS), $(BUILD_DIR)/$(arch)/lib$(PROJECT_NAME)_dbg.a $(BUILD_DIR)/$(arch)/lib$(PROJECT_NAME).a)

# Rule to create debug libraries for different architectures
$(BUILD_DIR)/%/lib$(PROJECT_NAME)_dbg.a: $(SRCS)
	@mkdir -p $(BUILD_DIR)/$*/debug
	$(foreach src, $(SRCS), $(CXX) $(CXXFLAGS_DEBUG) -mcpu=$* -c $(src) -o $(BUILD_DIR)/$*/debug/$(notdir $(src:.cpp=_dbg.o));)
	$(AR) rcs $@ $(BUILD_DIR)/$*/debug/*_dbg.o

# Rule to create release libraries for different architectures
$(BUILD_DIR)/%/lib$(PROJECT_NAME).a: $(SRCS)
	@mkdir -p $(BUILD_DIR)/$*/release
	$(foreach src, $(SRCS), $(CXX) $(CXXFLAGS_RELEASE) -mcpu=$* -c $(src) -o $(BUILD_DIR)/$*/release/$(notdir $(src:.cpp=.o));)
	$(AR) rcs $@ $(BUILD_DIR)/$*/release/*.o

# Clean up
clean:
	rm -rf $(BUILD_DIR) *.tar.gz

# Run link tests
test: all $(foreach arch, $(ARCHS), $(BUILD_DIR)/$(arch)/ld_test $(BUILD_DIR)/$(arch)/ld_test_dbg)
	@echo "Link test success!"

# Debug link tests
$(BUILD_DIR)/%/ld_test_dbg: $(SRCS) $(TEST_SRC)
	@$(CC) $(CFLAGS_DEBUG) -mcpu=$* ld_test.c -o $@ -L$(BUILD_DIR)/$* -l$(PROJECT_NAME)_dbg -lstdc++ -lm -specs=nosys.specs

# Release link tests
$(BUILD_DIR)/%/ld_test: $(SRCS) $(TEST_SRC)
	@$(CC) $(CFLAGS_RELEASE) -mcpu=$* ld_test.c -o $@ -L$(BUILD_DIR)/$* -l$(PROJECT_NAME) -lstdc++ -lm -specs=nosys.specs

# Package for release - bundle debug and release versions for each architecture separately
package: all
	@echo "Packaging for release..."
	@$(foreach arch, $(ARCHS), \
		mkdir -p release_$(arch)/lib; \
		mkdir -p release_$(arch)/include; \
		mkdir -p release_$(arch)/dbg; \
		cp $(BUILD_DIR)/$(arch)/lib$(PROJECT_NAME)_dbg.a release_$(arch)/lib/; \
		cp $(BUILD_DIR)/$(arch)/lib$(PROJECT_NAME).a release_$(arch)/lib/; \
		cp $(PACKAGE_HEADERS) release_$(arch)/include/; \
		cp $(SRCS) release_$(arch)/dbg/; \
		tar -czvf release_$(arch).tar.gz -C release_$(arch) .; \
		rm -rf release_$(arch); \
	)
	@echo "Packaging completed."

.PHONY: all clean test release