#!/bin/bash
# Project: Game Server Managers - LinuxGSM
# Author: Daniel Gibbs
# License: MIT License, Copyright (c) 2017 Daniel Gibbs
# Purpose: Rust | Server Management Script
# Contributors: https://github.com/GameServerManagers/LinuxGSM/graphs/contributors
# Documentation: https://github.com/GameServerManagers/LinuxGSM/wiki
# Website: https://gameservermanagers.com

# Debugging
if [ -f ".dev-debug" ]; then
	exec 5>dev-debug.log
	BASH_XTRACEFD="5"
	set -x
fi

version="170219"

##########################
######## Settings ########
##########################

#### Server Settings ####

## Server Start Settings | https://github.com/GameServerManagers/LinuxGSM/wiki/Start-Parameters
# More settings available after install in serverfiles/server/rust-server/server.cfg
servername="Rust"
ip="0.0.0.0"
port="28015"
rconport="28016"
rconpassword="CHANGE_ME"
rconweb="1" # Value is: 1 for Facepunch's web panel; 0 for RCON tools like Rusty or Rustadmin
maxplayers="50"
# Advanced Start Settings
seed="" #  default random; range : 1 to 2147483647 ; used to change or reproduce a procedural map
worldsize="3000" # default 3000; range : 1000 to 6000 ; map size in meters
saveinterval="300" # Auto-save in seconds
tickrate="30" # default 30; range : 15 to 100

## Server Start Command | https://github.com/GameServerManagers/LinuxGSM/wiki/Start-Parameters#additional-parameters
fn_parms(){
parms="-batchmode +server.ip ${ip} +server.port ${port} +server.tickrate ${tickrate} +server.hostname \"${servername}\" +server.identity \"${servicename}\" ${conditionalseed} +server.maxplayers ${maxplayers} +server.worldsize ${worldsize} +server.saveinterval ${saveinterval} +rcon.web ${rconweb} +rcon.ip ${ip} +rcon.port ${rconport} +rcon.password \"${rconpassword}\" -logfile \"${gamelogdate}\""
}

# Specific to Rust
if [ -n "${seed}" ]; then
	# If set, then add to start parms
	conditionalseed="+server.seed ${seed}"
else
	# Keep randomness of the number if not set
	conditionalseed=""
fi

#### LinuxGSM Settings ####

## Notification Alerts
# (on|off)
# Email Alerts | https://github.com/GameServerManagers/LinuxGSM/wiki/Email
emailalert="off"
email="email@example.com"
emailfrom=""

# Pushbullet Alerts | https://github.com/GameServerManagers/LinuxGSM/wiki/Pushbullet
pushbulletalert="off"
pushbullettoken="accesstoken"
channeltag=""

## Updating | https://github.com/GameServerManagers/LinuxGSM/wiki/Update
updateonstart="off"

## Backup | https://github.com/GameServerManagers/LinuxGSM/wiki/Backup
maxbackups="4"
maxbackupdays="30"
stoponbackup="on"

## Logging | https://github.com/GameServerManagers/LinuxGSM/wiki/Logging
consolelogging="on"
logdays="7"

#### LinuxGSM Advanced Settings ####

## SteamCMD Settings
# Server appid
appid="258550"
# Steam App Branch Select
# Allows to opt into the various Steam app branches. Default branch is "".
# Example: "-beta latest_experimental"
branch=""

## Github Branch Select
# Allows for the use of different function files
# from a different repo and/or branch.
githubuser="GameServerManagers"
githubrepo="LinuxGSM"
githubbranch="master"

## LinuxGSM Server Details
# Do not edit
gamename="Rust"
engine="unity3d"

## Service Name | https://github.com/GameServerManagers/LinuxGSM/wiki/Multiple-Servers
servicename="rust-server"

#### Directories ####
# Edit with care

## Work Directories
rootdir="$(dirname $(readlink -f "${BASH_SOURCE[0]}"))"
selfname=$(basename $(readlink -f "${BASH_SOURCE[0]}"))
lockselfname=".${servicename}.lock"
lgsmdir="${rootdir}/lgsm"
functionsdir="${lgsmdir}/functions"
libdir="${lgsmdir}/lib"
tmpdir="${lgsmdir}/tmp"
filesdir="${rootdir}/serverfiles"

## Server Specific Directories
systemdir="${filesdir}"
executabledir="${filesdir}"
executable="./RustDedicated"
serveridentitydir="${systemdir}/server/${servicename}"
servercfg="server.cfg"
servercfgdefault="server.cfg"
servercfgdir="${serveridentitydir}/cfg"
servercfgfullpath="${servercfgdir}/${servercfg}"

## Backup Directory
backupdir="${rootdir}/backups"

## Logging Directories
gamelogdir="${rootdir}/log/server"
scriptlogdir="${rootdir}/log/script"
consolelogdir="${rootdir}/log/console"
scriptlog="${scriptlogdir}/${servicename}-script.log"
consolelog="${consolelogdir}/${servicename}-console.log"
emaillog="${scriptlogdir}/${servicename}-email.log"

## Logs Naming
scriptlogdate="${scriptlogdir}/${servicename}-script-$(date '+%Y-%m-%d-%H:%M:%S').log"
consolelogdate="${consolelogdir}/${servicename}-console-$(date '+%Y-%m-%d-%H:%M:%S').log"
gamelogdate="${gamelogdir}/${servicename}-game-$(date '+%Y-%m-%d-%H:%M:%S').log"

########################
######## Script ########
###### Do not edit #####
########################

# Fetches core_dl for file downloads
fn_fetch_core_dl(){
github_file_url_dir="lgsm/functions"
github_file_url_name="${functionfile}"
filedir="${functionsdir}"
filename="${github_file_url_name}"
githuburl="https://raw.githubusercontent.com/${githubuser}/${githubrepo}/${githubbranch}/${github_file_url_dir}/${github_file_url_name}"
# If the file is missing, then download
if [ ! -f "${filedir}/${filename}" ]; then
	if [ ! -d "${filedir}" ]; then
		mkdir -p "${filedir}"
	fi
	echo -e "    fetching ${filename}...\c"
	# Check curl exists and use available path
	curlpaths="$(command -v curl 2>/dev/null) $(which curl >/dev/null 2>&1) /usr/bin/curl /bin/curl /usr/sbin/curl /sbin/curl)"
	for curlcmd in ${curlpaths}
	do
		if [ -x "${curlcmd}" ]; then
			break
		fi
	done
	# If curl exists download file
	if [ "$(basename ${curlcmd})" == "curl" ]; then
		curlfetch=$(${curlcmd} -s --fail -o "${filedir}/${filename}" "${githuburl}" 2>&1)
		if [ $? -ne 0 ]; then
			echo -e "\e[0;31mFAIL\e[0m\n"
			echo "${curlfetch}"
			echo -e "${githuburl}\n"
			exit 1
		else
			echo -e "\e[0;32mOK\e[0m"
		fi
	else
		echo -e "\e[0;31mFAIL\e[0m\n"
		echo "Curl is not installed!"
		echo -e ""
		exit 1
	fi
	chmod +x "${filedir}/${filename}"
fi
source "${filedir}/${filename}"
}

core_dl.sh(){
# Functions are defined in core_functions.sh.
functionfile="${FUNCNAME}"
fn_fetch_core_dl
}

core_functions.sh(){
# Functions are defined in core_functions.sh.
functionfile="${FUNCNAME}"
fn_fetch_core_dl
}

# Prevent from running this script as root.
if [ "$(whoami)" = "root" ]; then
	if [ ! -f "${functionsdir}/core_functions.sh" ]||[ ! -f "${functionsdir}/check_root.sh" ]||[ ! -f "${functionsdir}/core_messages.sh" ]||[ ! -f "${functionsdir}/core_exit.sh" ]; then
		echo "[ FAIL ] Do NOT run this script as root!"
		exit 1
	else
		core_functions.sh
		check_root.sh
	fi
fi

core_dl.sh
core_functions.sh
getopt=$1
core_getopt.sh