# Install dependencies
sudo apt update
sudo apt install build-essential clang flex g++ gawk gcc-multilib gettext \
  git libncurses5-dev libssl-dev python3-distutils rsync unzip zlib1g-dev

# Clone this repo
git clone https://github.com/hzyitc/openwrt-redmi-ax3000
cd openwrt-redmi-ax3000

# Update and install feeds
./scripts/feeds update -a
./scripts/feeds install -a

# Configure
make menuconfig

# Download
make -j16 download

# Build
make -j$(nproc)

# This router ip
setenv ipaddr 192.168.1.2
# TFTP server ip
setenv serverip 192.168.1.1

# Download the firmware to the RAM
tftpboot openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi

# Flash it as system 2
flash rootfs_1
setenv flag_try_sys2_failed 0
setenv flag_boot_rootfs 1
setenv flag_last_success 1
saveenv

# Flash it as system 1
# flash rootfs
# setenv flag_try_sys1_failed 0
# setenv flag_boot_rootfs 0
# setenv flag_last_success 0
# saveenv

# Reboot
reset

cd /tmp
wget https://github.com/hzyitc/openwrt-redmi-ax3000/releases/latest/download/openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi

# Check your partition table
# cat /proc/mtd
[[ "$(grep '"rootfs"' /proc/mtd | cut -d':' -f1)" == "mtd18" ]] || exit
[[ "$(grep '"rootfs_1"' /proc/mtd | cut -d':' -f1)" == "mtd19" ]] || exit

# Detect the current system slot and flash into the other one
# cat /proc/cmdline
mtd="$(grep -oE 'ubi.mtd=[a-zA-Z0-9\-\_]*' /proc/cmdline | cut -d'=' -f2)"
if [[ "$mtd" == "rootfs" ]]; then
	# Flash it as system 2
	ubiformat /dev/mtd19 -f openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi
	nvram set flag_try_sys2_failed=0
	nvram set flag_boot_rootfs=1
	nvram set flag_last_success=1
	nvram commit
else if [[ "$mtd" == "rootfs_1" ]]; then
	# Flash it as system 1
	ubiformat /dev/mtd18 -f openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi
	nvram set flag_try_sys1_failed=0
	nvram set flag_boot_rootfs=0
	nvram set flag_last_success=0
	nvram commit
fi

# Reboot
reboot