#!/system/bin/sh
# $1 setup
controller=$(getprop sys.usb.controller)
moddir=[MODDIR]

exec >>$moddir/ghid.log
exec 2>>$moddir/ghid.log
date
set -o xtrace
set -o nohup
set +o errexit
set +o sh
set +o posix
exec >>$moddir/oghid.log
exec 2>>$moddir/oghid.log

remove_ghid() {
    echo "disabling ghid"
    rm /config/usb_gadget/g1/configs/b.1/fhid
    rmdir /config/usb_gadget/g1/functions/hid.usb0
}

enable_ghid() {
    . "$moddir/definitions/keyboard-standard"
    if [ ! -d /config/usb_gadget/g1/functions/hid.usb0 ]; then
        mkdir /config/usb_gadget/g1/functions/hid.usb0
    fi
    current_protocol="$(cat /config/usb_gadget/g1/functions/hid.usb0/protocol)"
    current_subclass="$(cat /config/usb_gadget/g1/functions/hid.usb0/subclass)"
    current_report_length="$(cat /config/usb_gadget/g1/functions/hid.usb0/report_length)"

    if [ -e /config/usb_gadget/g1/functions/hid.usb0 -a "$current_protocol" == "$protocol" -a "$current_subclass" == "$subclass" -a "$current_report_length" == "$report_length" ] && diff "$moddir/reports/$report_name" /config/usb_gadget/g1/functions/hid.usb0/report_desc; then
        echo nothing to update
        cd /config/usb_gadget/g1/configs/b.1/
        /data/adb/magisk/busybox ln -nsf ../../../../usb_gadget/g1/functions/hid.usb0 ./fhid
        return 0
    fi

    echo new ghid

    echo protocol: $protocol
    echo subclass: $subclass
    echo report_length: $report_length

    echo $protocol >/config/usb_gadget/g1/functions/hid.usb0/protocol
    echo $subclass >/config/usb_gadget/g1/functions/hid.usb0/subclass
    echo $report_length >/config/usb_gadget/g1/functions/hid.usb0/report_length
    cat "$moddir/reports/$report_name" >/config/usb_gadget/g1/functions/hid.usb0/report_desc

    cd /config/usb_gadget/g1/configs/b.1/
    /data/adb/magisk/busybox ln -nsf ../../../../usb_gadget/g1/functions/hid.usb0 ./fhid
}

echo success ghid was run with: "$@"

case "$1" in
"init")
    enable_ghid
    ;;
"remove")
    remove_ghid
    ;;
*)
    shift
    exit 0
    ;;
esac

restorecon /dev/hidg*