#!/bin/sh

prog=$1
auth=$2
shift 2

tmp="$(tempfile)"
trap "rm $tmp" 0
exec >"$tmp"

authrn="$(getent passwd "$auth" | awk -F: '{ print $5 }' | sed 's/,.*//')"

echo "From: $prog <ceo+$prog@csclub.uwaterloo.ca>"
echo "To: Membership and Accounts <ceo@csclub.uwaterloo.ca>"
echo "Cc: $authrn <$auth@csclub.uwaterloo.ca>"

if test "$prog" = addmember; then
    user=$1 name=$2 dept=$3; shift 3
    subj="New Member: $user"
    test -z "$dept" && dept="things unknown"
    body="Name: $name
Account: $user
Program: $dept
Added by: $auth"

elif test "$prog" = addclub; then
    user=$1 name=$2; shift 2
    subj="New Club Account: $user"
    body="Club: $name
Account: $user
Added by: $auth"

else
    exit 1
fi

output=$(cat)

echo "X-Auth-User: $auth"
echo "X-New-User: $user"
echo "X-New-Name: $name"
echo "Subject: $subj"
echo
echo "$body" | fmt -s
echo

if test -n "$output"; then
    echo
    echo "$output"
fi

echo
echo Your Friend,
echo "$prog"

exec >&- 2>&-
/usr/sbin/sendmail -t -f "ceo@csclub.uwaterloo.ca" < "$tmp"