#!/bin/sh

read cvmPid < /var/run/cvm.pid

trap "rm /var/run/progdis.pid ; exit" SIGINT SIGTERM

if [[ ! -e "/var/run/progdis.pid" ]]; then
    echo $$ > "/var/run/progdis.pid"
else
    echo "Progress bar disabler is already running"
    exit 1
fi

eraseProgress() {
    usleep 500000
    ## Print white space over progress bar
    eips 0 38 "                                                  " &
    eips 0 39 "                                                  " &
}

bookCheck() {
    ## Check if cvm has a open file descriptor for a file in /mnt/us/documents/
    case "$(realpath /proc/$cvmPid/fd/* 2> /dev/null | awk -F . '/\/mnt\/us\/documents\// {print $NF}')" in
        [Mm][Oo][Bb][Ii]|[Pp][Dd][Ff]|[Pp][Rr][Cc]|[Aa][Zz][Ww]*)
            eraseProgress
        ;;
    esac
}

## Wait for page turn
while :; do
    case "$(waitforkey)" in
        191*|109*|104*|193*)
            bookCheck
        ;;
    esac
done