#!/bin/sh

set -e

. /usr/share/debconf/confmodule
. /usr/share/dbconfig-common/dpkg/postinst

# Set permissions for sqlite3 file
dbc_dbfile_owner="list:list"
dbc_dbfile_perms="0660"

dbc_go mailman3 "$@"

cleanup () {
    [ "$mailmancfg_new" ] && rm -f "$mailmancfg_new"
}

upgrade_fixes () {
    version="$(dpkg -s $DPKG_MAINTSCRIPT_PACKAGE | sed -n 's/^Version: //p')"
    if dpkg --compare-versions "$version" le "3.1.1-7"; then
        ucfr --force mailman3 /etc/mailman3/mailman.cfg
    fi
}

init_service_failed () {
    db_input high mailman3/init_service_failed || true
    db_go
}

# All seds are using a vertical pipe "|" as a delimiter because of
# the potential presence of a slash "/" into some variables, as those
# filled with a base64 -w0. We thought about using a number sign "#",
# but sometimes the delimiter follows a variable sign "$", and "$#"
# might be interpreted by the shell.
create_config () {
    trap cleanup EXIT
    mailmancfg_new=`mktemp`
    cp -a /usr/share/mailman3/mailman.cfg.sample $mailmancfg_new

    # get database settings from dbconfig-common
    if [ -f /etc/dbconfig-common/mailman3.conf ]; then
        . /etc/dbconfig-common/mailman3.conf

        # Comment out default database settings if dbconfig is used
        sed -i -e 's|^\s*class: mailman\.database\..*$|#&|' \
            $mailmancfg_new
        sed -i -e 's|^\s*url: [a-z+]\+://.*$|#&|' \
            $mailmancfg_new
    fi

    case "$dbc_dbtype" in
        pgsql)
            sed -i -e 's|^#\?\s*\(class: mailman\.database\.postgresql\.PostgreSQLDatabase\)$|\1|' \
                $mailmancfg_new
            sed -i -e "s|^#\?\s*url: postgres://.*$|url: postgres://$dbc_dbuser:$dbc_dbpass@$dbc_dbserver/$dbc_dbname|" \
                $mailmancfg_new
            ;;
        mysql)
            sed -i -e 's|^#\?\s*\(class: mailman\.database\.mysql\.MySQLDatabase\)|\1|' \
                $mailmancfg_new
            sed -i -e "s|^#\?\s*url: mysql+pymysql://.*$|url: mysql+pymysql://$dbc_dbuser:$dbc_dbpass@$dbc_dbserver/$dbc_dbname?charset=utf8\&use_unicode=1|" \
                $mailmancfg_new
            ;;
        sqlite3)
            sed -i -e 's|^#\?\s*\(class: mailman\.database\.sqlite\.SQLiteDatabase\)$|\1|' \
                $mailmancfg_new
            sed -i -e 's|^#\?\s*url: sqlite:///.*$|url: sqlite:///$DATA_DIR/mailman.db|' \
                $mailmancfg_new
            ;;
        "")
            ;;
        *)
            echo "Unsupported database type $dbc_type."
            exit 1
            ;;
    esac

    # Get admin_pass from mailman.cfg if existent
    [ -f /etc/mailman3/mailman.cfg ] && {
        admin_pass="$(sed -ne 's|^\s*admin_pass:\s*||p' /etc/mailman3/mailman.cfg)"
    }
    # If this is the default password, forget it!
    [ "$admin_pass" = "restpass" ] && unset admin_pass
    # Generate a new one
    while [ -z "$admin_pass" ]; do
        admin_pass="$(dd if=/dev/urandom bs=1 count=200 2>/dev/null \
            | base64 -w0 | sed -ne 's|\(.\{48\}\).*|\1|p')"
    done

    # Set new admin_pass in mailman.cfg
    sed -i -e "s|^\(\s*admin_pass:\s*\)\S\+$|\1$admin_pass|" $mailmancfg_new

    db_get mailman3/config_hyperkitty
    res="$RET"
    if [ "$res" = "true" ]; then
        cat /usr/share/mailman3/mailman_cfg_hyperkitty_snippet.cfg \
            >>$mailmancfg_new
    fi

    # Register new config file
    ucf --three-way --debconf-ok "$mailmancfg_new" /etc/mailman3/mailman.cfg
    ucfr mailman3 /etc/mailman3/mailman.cfg
    chmod 0640 /etc/mailman3/mailman.cfg
    chown root:list /etc/mailman3/mailman.cfg
    rm -f $mailmancfg_new
}

case "$1" in
    configure)
        upgrade_fixes
        create_config
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac


# Automatically added by dh_python3
if command -v py3compile >/dev/null 2>&1; then
	py3compile -p mailman3 
fi
if command -v pypy3compile >/dev/null 2>&1; then
	pypy3compile -p mailman3  || true
fi

# End automatically added section
# Automatically added by dh_installtmpfiles/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "$(command -v systemd-tmpfiles)" ]; then
		systemd-tmpfiles ${DPKG_ROOT:+--root="$DPKG_ROOT"} --create mailman3.conf >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -z "${DPKG_ROOT:-}" ] && [ -x "/etc/init.d/mailman3" ]; then
		update-rc.d mailman3 defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d --skip-systemd-native mailman3 $_dh_action || init_service_failed
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# The following line should be removed in trixie or trixie+1
	deb-systemd-helper unmask 'mailman3.service' >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'mailman3.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'mailman3.service' >/dev/null || true
	else
		# Update the statefile to add new symlinks (if any), which need to be
		# cleaned up on purge. Also remove old symlinks.
		deb-systemd-helper update-state 'mailman3.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -d /run/systemd/system ]; then
		systemctl --system daemon-reload >/dev/null || true
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		deb-systemd-invoke $_dh_action 'mailman3.service' >/dev/null || true
	fi
fi
# End automatically added section


db_stop
exit 0