rsvp

#!/bin/bash

# Connect the cleanup function to the usual signals
trap "cleanup; exit" SIGHUP SIGINT SIGTERM

# Check if the file exists
[ -f "$1" ] || echo "File not found!" || exit

function cleanup() {
    # Restore the screen content
    tput rmcup

    # Make the cursor visible again
    tput cvvis
}

# Save the screen contents
tput smcup

# Loop over all words
while read line
do
    ## Get viewport width and height
    height=$(tput lines)
    width=$(tput cols)

    # Get the length of the current word
    line_length=${#line}

    # Clear the screen
    clear

    # Put the cursor on the middle of the terminal (a bit more to the left, to center the word)
    tput cup "$((height/2))" "$((($width-$line_length)/2))"

    # Hide the cursor
    tput civis

    # Print the word
    printf "$line"

    # Sleep one second
    sleep 1

# Pass the words separated by a newline to the loop
done < <(tr ' ' '\n' < "$1")

# Call the cleanup function
cleanup