# Determine project root relative to this Makefile (arkos/Makefile)
ROOT := $(realpath $(dir $(lastword $(MAKEFILE_LIST)))/..)
TOOLS := $(ROOT)/tools
ARKOS := $(ROOT)/arkos
CLANG := $(ARKOS)/prebuilts/clang/bin/clang

.PHONY: build run clean run-uefi

build:
	@$(MAKE) --no-print-directory -C $(TOOLS)
	@$(TOOLS)/build $(ARKOS)

run:
	@echo "Starting ArkOS Testing Window in QEMU (BIOS)..."
	@qemu-system-x86_64 \
		-m 2048 \
		-smp 2 \
		-drive file=finished/boot.img,format=raw,index=0,media=disk \
		-drive file=finished/sys.img,format=raw,index=1,media=disk \
		-drive file=finished/vend.img,format=raw,index=2,media=disk \
		-vga virtio \
		-enable-kvm 2>/dev/null || \
	qemu-system-x86_64 \
		-m 2048 \
		-smp 2 \
		-drive file=finished/boot.img,format=raw,index=0,media=disk \
		-drive file=finished/sys.img,format=raw,index=1,media=disk \
		-drive file=finished/vend.img,format=raw,index=2,media=disk \
		-vga virtio

run-uefi:
	@echo "Starting ArkOS Testing Window in QEMU (UEFI)..."
	@qemu-system-x86_64 \
		-bios /usr/share/edk2/x64/OVMF.4m.fd \
		-m 2048 \
		-smp 2 \
		-drive file=finished/boot.img,format=raw,index=0,media=disk \
		-drive file=finished/sys.img,format=raw,index=1,media=disk \
		-drive file=finished/vend.img,format=raw,index=2,media=disk \
		-vga virtio \
		-enable-kvm 2>/dev/null || \
	qemu-system-x86_64 \
		-bios /usr/share/edk2/x64/OVMF.4m.fd \
		-m 2048 \
		-smp 2 \
		-drive file=finished/boot.img,format=raw,index=0,media=disk \
		-drive file=finished/sys.img,format=raw,index=1,media=disk \
		-drive file=finished/vend.img,format=raw,index=2,media=disk \
		-vga virtio

clean:
	rm -rf out_staging finished boot/assets
	@$(MAKE) --no-print-directory -C $(TOOLS) clean

# Extract securebuild key
ARK_KEY := $(shell if [ -f vendor/verify/securebuild.ark ]; then grep "^ARK-OS-" vendor/verify/securebuild.ark | tr -d '[:space:]'; else echo "NO_KEY"; fi)

# Compilation targets for ArkOS binaries
out_staging/fb_helper.o: system/fb_helper.c
	gcc -c system/fb_helper.c -o out_staging/fb_helper.o

out_staging/swift_splash: system/swift_splash.swift out_staging/fb_helper.o
	swiftc -O -static-executable system/swift_splash.swift out_staging/fb_helper.o -o out_staging/swift_splash

out_staging/arkrt: arkrt/main.swift arkrt/KernelBridge.swift arkrt/CommandRouter.swift arkrt/IPC.swift
	swiftc -O -static-executable arkrt/main.swift arkrt/KernelBridge.swift arkrt/CommandRouter.swift arkrt/IPC.swift -o out_staging/arkrt

out_staging/init: system/init.c vendor/verify/sha256.c
	gcc -static vendor/verify/sha256.c system/init.c -Ivendor/verify -DARK_KEY="\"$(ARK_KEY)\"" -o out_staging/init

out_staging/bootloader.bin: boot/source/bootloader.asm
	nasm -f bin boot/source/bootloader.asm -o out_staging/bootloader.bin

out_staging/stage2.bin: boot/source/stage2.asm
	nasm -f bin boot/source/stage2.asm -o out_staging/stage2.bin

out_staging/BOOTX64.EFI: boot/source/bootloader.c
	gcc -I/usr/include/efi -I/usr/include/efi/x86_64 -I/usr/include/efi/protocol \
		-fno-stack-protector -fpic -fshort-wchar -mno-red-zone -DEFI_FUNCTION_WRAPPER \
		-c boot/source/bootloader.c -o out_staging/bootloader_uefi.o
	ld -nostdlib -znocombreloc -T /usr/lib/elf_x86_64_efi.lds -shared -Bsymbolic \
		/usr/lib/crt0-efi-x86_64.o out_staging/bootloader_uefi.o -o out_staging/bootloader_uefi.so \
		-lgnuefi -lefi -L/usr/lib
	objcopy -j .text -j .sdata -j .data -j .rodata -j .dynamic -j .dynsym -j .rel -j .rela -j .reloc -j .eh_frame \
		-O pei-x86-64 --subsystem 10 out_staging/bootloader_uefi.so out_staging/BOOTX64.EFI