#!/bin/busybox sh

BOOTLOGO="boot-logo"
export HOME=/mnt
export SDL_NOMOUSE=1
START="${HOME}/autoexec.sh"

BOOTDIR=/boot # we expect /dev/mmcblk0p1 has been mounted here read only, from inittab
LOGS=/dev/null
#LOGS=/mnt/log.txt
# can use /mnt/log.txt here, but note that this prevents clean shutdowns - so only use this for debugging
export LOGS # so that subshells can use this as well

# try to read what handheld we're on
if test -r "${BOOTDIR}/console.cfg"; then
    source "${BOOTDIR}/console.cfg"
fi
# sanity checks - we default to PocketGO
if test -z "${CONSOLE_VARIANT}"; then
    CONSOLE_VARIANT="pocketgo"
fi
export CONSOLE_VARIANT

# check if it's first boot and turn on messages if yes
if test -r "${BOOTDIR}/firstboot"; then
    DEBUG_MSG="yes"
fi

if test "x${DEBUG_MSG}" == "xyes"; then
    echo -e "\e[0m"    # normal foreground colour
    export DEBUG_MSG   # set it globally for further programs
else
    echo -e "\e[30m"   # black foreground colour
fi

# load kernel modules

# load usb gadget
mount -t configfs none /sys/kernel/config >> "${LOGS}" 2>&1
gadget-ms /dev/mmcblk0p1 /dev/mmcblk0p4 >> "${LOGS}" 2>&1


# just load the expected ones (screen driver) from here
# do it directly and not rely on modprobe trying to find them
#   automatically in rootfs/lib/modules/VERSION
#   (also because with custom kernels the VERSION will be different.
# 
	# the uEnv.txt is autogenerated by u-boot from HW which outputs
	#	environmental variables needed for ID of screen type
	video=`cat ${BOOTDIR}/uEnv.txt |grep -a "CONSOLE_VIDEO" | cut -d "=" -f 2 | cut -d "." -f 1`
    params=`cat ${BOOTDIR}/uEnv.txt |grep -a "CONSOLE_PARAMETERS" | cut -d "=" -f 2-`

	# TVout scripting backend
    tvout=`cat ${HOME}/tvout`
    if ((test -r "${HOME}/tvout")); then
     echo 0 > /sys/class/backlight/backlight/brightness
     echo 0 > /sys/class/vtconsole/vtcon1/bind
     cp /mnt/.backlight.conf /mnt/.backlight.bak
     echo 0 > ${HOME}/.backlight.conf
     modprobe -r $video
     if (grep -q TVMODE\=\1 "${HOME}/options.cfg"); then
		modprobe miyoo-tvout tvmode=1
     else
		modprobe miyoo-tvout
     fi
     echo 1 > /sys/class/vtconsole/vtcon1/bind
     modprobe -r $video
    else
	  if ((test -r "${HOME}/.backlight.bak")); then
	  mv ${HOME}/.backlight.bak ${HOME}/.backlight.conf
	  fi 
	  # MODULES_CUSTOM scripting
      if ((test -r "${BOOTDIR}/modules.custom.sh") && !(grep -q MODULES_CUSTOM\=\0 "${HOME}/options.cfg")); then
          (cd "${BOOTDIR}" && sh modules.custom.sh ) >> "${LOGS}" 2>&1
      else
		# Load video module read from uEnv.txt & defined by variant in console.cfg
		if (grep -q FLIP\=\1 "${HOME}/options.cfg"); then
		modprobe $video $params flip=1
		elif (grep -q FLIP\=\0 "${HOME}/options.cfg"); then
		modprobe $video $params flip=0
		else
		modprobe $video $params
		fi
      fi
    fi


# check if it's first boot and defer to the firstboot script if yes
if test -r "${BOOTDIR}/firstboot"; then
    exec sh "${BOOTDIR}/firstboot"
fi

if !(grep -q FAT_CHECK\=\0 "${HOME}/options.cfg"); then
##Check if fat32 is flagged as "dirty", and if so unmount, repair, remount
if dmesg | grep "mmcblk0p4" > /dev/null;  then
echo -e "\e[31mUnclean shutdown detected.\e[0m"
echo -e "\e[32mChecking FAT32 partition...\e[0m"
umount /dev/mmcblk0p4
fsck.vfat -y /dev/mmcblk0p4 > /dev/null; 
mount /dev/mmcblk0p4 "${HOME}" -t vfat -o rw,sync,utf8
echo -e "\e[32mCheck complete.\e[0m"
fi
fi

clear

echo "Boot!" >> "${LOGS}"
echo "Handheld type is ${CONSOLE_VARIANT}" >> "${LOGS}"

# run any custom commands ('daemon' expected to be run from there)
if test -r "${BOOTDIR}/normalboot.custom.sh" ; then
    (cd "${BOOTDIR}" && sh normalboot.custom.sh) # don't redirect, want output on screen
else
    # at least run 'daemon'
    daemon >> "${LOGS}" 2>&1
fi

# run boot logo animation
if (!(grep -q BOOT_LOGO\=\0 "${HOME}/options.cfg")); then
    ${BOOTLOGO} >> "${LOGS}" 2>&1
	#st7789s video driver long initialization fix
elif (lsmod | grep -q st7789s); then
	sleep 1
fi

# can't unmount boot because 'daemon' runs from it - but it's mounted read-only
#  so it's fine
## umount /dev/mmcblk0p1

if test "x${DEBUG_MSG}" == "xyes"; then
    echo "(Waiting 5 seconds before proceeding...)"
    sleep 5
    dmesg > /mnt/dmesg.txt
fi

while [ 1 ]
do
    if test -f "${START}"; then
        source "${START}"
    else

        cd "${HOME}"/gmenu2x;
        ./gmenu2x >> "${LOGS}" 2>&1;
    fi
    clear
done