#!/bin/sh -u
# DAT2333 - Fall 2000 - Unix Lab 5 - Script B - final copy.
# It prompts you for a name, then echoes the name and a wakeup message,
# then sends that wakeup message to that person.
# -IAN! idallen@ncf.ca

# We loop until the user types one of the many "quit" keywords:
# This should be a do/while loop; but, sh doesn't have one.
#
leave=no
while [ "$leave" = "no" ]
do
	# Get some input and echo it back to the user.
	#
	echo " "
	echo "Enter the name: \c"
	read input
	echo "You entered: $input"

	# Select the words to send and the userid recipient based on the input.
	#
	userid=""   # start with empty userid
	case "$input" in
	me)
		words="Wakie Wakie!"
		userid="$USER"
		;;
	a|alex)
		words="Yooo Hoooo!"
		userid=bbbb2222
		;;
	b|bobby)
		words="Wake Up!"
		userid=aaaa1111
		;;
	c|chris)
		words="Think Fast!"
		userid=cccc3333
		;;
	q|quit|x|exit|bye|leave|aurevoir|dosvedanja)
		leave=yes
		;;
	*)
		echo "Unrecognized input: $input"
		echo "Please enter a recognized name."
		;;
	esac

	# If we entered a recognized name, $userid is set.
	# Echo the words and userid, then send the message.
	# Check for a good return status from the sending operation.
	#
	if [ "$userid" ]
	then
		echo "Sending $words to \"$input\" (userid $userid)."
		if banner "$words" | write $userid
		then
			echo "Message sent."
		else
			echo " "
			echo "An error ocurred when sending to $userid."
		fi
	fi
done