#!/bin/bash

# kf2-srv is a command line tool for managing a set of Killing Floor 2 servers.
# Copyright (C) 2019, 2020 GenZmeY
# mailto: genzmey@gmail.com
# 
# This file is part of kf2-srv.
#
# kf2-srv is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

function log_cat () # $*: InstanceName[s]
{
	include "$LibDir/instance.lib"
	
	local InstanceList="$*"
	if [[ -z "$InstanceList" ]] ; then
		InstanceList=$(show_instances)
	fi
	
	local Logs
	for Instance in $InstanceList
	do
		if instance_exists "$Instance"; then	
			local Service=$(service_name "$Instance")
			Logs+="-u $Service "
		else
			echo "Instance $Instance not exitst"
		fi
	done
	
	if [[ -z "$Logs" ]]; then
		echo "No logs available."
	else
		journalctl --no-pager $Logs
	fi
}

function log_tail () # $*: InstanceName[s]
{
	include "$LibDir/instance.lib"
	
	local InstanceList="$*"
	if [[ -z "$InstanceList" ]] ; then
		InstanceList=$(show_instances)
	fi
	
	local Logs
	for Instance in $InstanceList
	do
		if instance_exists "$Instance"; then	
			local Service=$(service_name "$Instance")
			Logs+="-u $Service "
		else
			echo "Instance $Instance not exitst"
		fi
	done
	
	if [[ -z "$Logs" ]]; then
		echo "No logs available."
	else
		echo "Hint: use Ctrl+C to stop output"
		journalctl --no-pager -f $Logs
	fi
}