CC = clang

SRC_DIR := src
SRC := $(SRC_DIR)/main.c

BUILD_DIR := build

ASSETS := assets
TARGET := $(BUILD_DIR)/hello

CTOOLS := $(SRC_DIR)/ctools
LIBFT_DIR := $(CTOOLS)/libft
LIBFT := $(LIBFT_DIR)/lib/libft.a

LIB := $(LIBFT)

CFLAGS := -Wall -Wextra -Werror --target=arm-linux-gnueabihf

DOCKER_CMD := /bin/sh -c 'hello "host.docker.internal" "8000"'

MINIROOTFS := $(ASSETS)/minirootfs.tar.gz

ALPINE := alpine/
ALPINE_BIN := $(ALPINE)/bin
ALPINE_IMG := $(ASSETS)/alpine.img
ALPINE_TAR := $(ALPINE_IMG).gz

get: $(ALPINE) $(ASSETS)
	wget https://dl-cdn.alpinelinux.org/alpine/v3.22/releases/armhf/alpine-minirootfs-3.22.1-armhf.tar.gz -O $(MINIROOTFS)
	wget https://dl-cdn.alpinelinux.org/alpine/v3.22/releases/armhf/alpine-rpi-3.22.1-armhf.img.gz -O $(ALPINE_TAR)
	gunzip -c $(ALPINE_TAR) > $(ALPINE_IMG)
	rm -rf $(ALPINE)/*
	tar xvf $(MINIROOTFS) -C $<

all: $(SRC) $(BUILD_DIR) $(LIB) get
	$(CC) $(CFLAGS) -o $(TARGET) -static $(SRC) $(LIB)
	cp $(TARGET) $(ALPINE_BIN)
	tar czf $(MINIROOTFS) -C alpine ./
	docker import --platform linux/arm/v7 $(MINIROOTFS) alpine-custom:latest


run: all
	docker run --add-host=host.docker.internal:host-gateway --platform linux/arm/v7 -it alpine-custom $(DOCKER_CMD)

$(LIB):
	make -C $(LIBFT_DIR)

$(BUILD_DIR):
	mkdir -p $@

$(ALPINE):
	mkdir -p $@

$(ASSETS):
	mkdir -p $@

clean:
	rm -rf $(BUILD_DIR) $(ALPINE) $(ASSETS)