#!/bin/bash
#
# $Id: watch-urls3,v 0.1 2022/08/15 14:16:20 root Exp root $

MAILCC="user2@localhost"
MAILTO="user1@localhost"
TEMP_REPORT=/tmp/urlwatch.$$
TOPIC="Changed websites context"
SIGLINE="$HOME/inject2$$.txt"

WHICH=/usr/bin/which
MAILER=$(${WHICH} mailx)
REMOVE=$(${WHICH} rm)
WATCHER=$(${WHICH} urlwatch)

function append_report
{
        touch $SIGLINE

        cat <<- ETX > "$SIGLINE"

        These contents will be written to the file.
        This line is indented.

        regards,

        The Management
        --
        ETX

        sed -i -e "s/^-- $/added/" $TEMP_REPORT
        sed -i -e "/"^added"/ r $SIGLINE" $TEMP_REPORT
}

echo
echo "Checking for changes on watched websites ..."

${WATCHER} > "$TEMP_REPORT"

if test -s $TEMP_REPORT ; then
        echo "Sending the change report"
        append_report
        ${MAILER} -s "$TOPIC" "$MAILTO" "$MAILCC" < $TEMP_REPORT
else
        echo "Nothing is new and/or nothing has changed."
fi

${REMOVE} -f "$TEMP_REPORT"
${REMOVE} -f "$SIGLINE"

echo "Finished"
echo

# End of script