#!/bin/bash
#  _____               _           _
# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
# |   __|  _| -_| -_| . | . |     | . | . |   | -_|
# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|
#
#                              Freedom in the Cloud
#
# Removes a mailing list to the email configuration
#
# License
# =======
#
# Copyright (C) 2015-2018 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

PROJECT_NAME='freedombone'

export TEXTDOMAIN=${PROJECT_NAME}-rmlist
export TEXTDOMAINDIR="/usr/share/locale"

MYUSERNAME=$USER
MAILINGLIST=
LIST_ADDRESS=

function show_help {
    echo ''
    echo $"${PROJECT_NAME}-rmlist -u [username] -l [mailing list name] -e [list email address]"
    echo ''
    exit 0
}

while [ $# -gt 1 ]
do
key="$1"

case $key in
    -h|--help)
    show_help
    ;;
    -u|--user)
    shift
    MYUSERNAME="$1"
    ;;
    -l|--list)
    shift
    MAILINGLIST="$1"
    ;;
    -e|--email)
    shift
    LIST_ADDRESS="$1"
    ;;
    *)
    # unknown option
    ;;
esac
shift
done

if ! [[ $MYUSERNAME && $MAILINGLIST ]]; then
    show_help
fi

MUTTRC=/home/$MYUSERNAME/.muttrc
MUTT_MAILBOXES=$(grep "mailboxes =" "$MUTTRC")
if [[ $MUTT_MAILBOXES == *$MAILINGLIST* ]]; then
    sed -i "s| =$MAILINGLIST||g" "$MUTTRC"
    chown "$MYUSERNAME":"$MYUSERNAME" "$MUTTRC"
fi

if [ "$LIST_ADDRESS" ]; then
    if ! grep -q "unsubscribe $LIST_ADDRESS" "$MUTTRC"; then
        sed -i "s|subscribe $LIST_ADDRESS|unsubscribe $LIST_ADDRESS|g" "$MUTTRC"
    fi
fi

exit 0