#!/bin/sh

arch=aarch64

if [ "$1" = "--print-arch" ]; then
	echo $arch
	exit
fi

rootfs=.
kver=5.15.78-0
while [ $# -gt 0 ]; do
	case "$1" in
		add|del|cache|update)
			echo "DEBUG: fake apk" "$@"
			cmd="$1"
			;;
		audit|info)
			cmd="$1"
			;;
		-p|--root)
			shift
			rootfs="$1"
			;;
		--quiet)
			quiet=1
			;;
		--arch) shift ;;
		--repositories-file) shift ;;
		--keys-dir) shift ;;
		-*) subopt="$1";;
		[a-z]*)
			pkgs="$pkgs $1"
			;;
	esac
	shift
done

case "$cmd" in
	audit)
		mkdir -p etc
		touch etc/hosts etc/localtime
		if [ -z "$quiet" ]; then
			audit_prefix="U "
		fi
		echo "${audit_prefix}etc/hosts"
		echo "${audit_prefix}etc/localtime"
		exit 0
		;;
	cache|update|del)
		exit 0
		;;
	info)
		case "$subopt" in
			-r|--depends)
				for pkg in $pkgs; do
					if ! [ -n "$quiet" ]; then
						printf "%s depends on:\n\n"
					fi
					case "$pkg" in
						*gnome*) printf "gnome-shell\ngvfs\n";;
					esac
				done
				;;
		esac
		;;
esac

for pkg in $pkgs; do
	case "$pkg" in
		linux-firmware*)
			# simulate install firmware
			mkdir -p "$rootfs"/lib/firmware/brcm
			touch "$rootfs"/lib/firmware/brcm/brcmfmac43456-sdio.raspberrypi,400.bin \
				"$rootfs"/lib/firmware/brcm/brcmfmac43456-sdio.raspberrypi,400.clm_blob \
				"$rootfs"/lib/firmware/brcm/brcmfmac43456-sdio.raspberrypi,400.txt \
				"$rootfs"/lib/firmware/brcm/brcmfmac43752-sdio.bin \
				"$rootfs"/lib/firmware/brcm/brcmfmac43752-sdio.txt \
				"$rootfs"/lib/firmware/brcm/"brcmfmac43455-sdio.Raspberry Pi Foundation-Raspberry Pi Compute Module 4.txt" \
				"$rootfs"/lib/firmware/brcm/brcmfmac43455-sdio.bin \
				"$rootfs"/lib/firmware/brcm/brcmfmac43455-sdio.clm_blob
			;;
		linux-*)
			# simulate installing kernel
			flavor=${pkg#linux-}
			mkdir -p "$rootfs"/lib/modules/$kver-$flavor/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac \
				"$rootfs"/boot
			touch "$rootfs"/boot/System.map-$flavor \
				"$rootfs"/boot/config-$flavor \
				"$rootfs"/boot/vmlinuz-$flavor
			cat >"$rootfs/lib/modules/$kver-$flavor"/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko <<-EOF
				vermagic:       $kver-$flavor SMP preempt mod_unload modversions $arch
				firmware:       brcm/brcmfmac*-sdio.*.bin
				firmware:       brcm/brcmfmac*-sdio.*.txt
				firmware:       brcm/brcmfmac43752-sdio.clm_blob
				firmware:       brcm/brcmfmac43752-sdio.bin
			EOF
			gzip "$rootfs/lib/modules/$kver-$flavor"/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko
			;;
	esac
done