Change systemd unit options and add root check

PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: NullBite <aur.archlinux@nullbite.com>
 pkgname=mcserver
-pkgver=0.0.1
-pkgrel=4
+pkgver=0.0.2
+pkgrel=1
 pkgdesc="Minecraft server manager"
 arch=("any")
 url="https://gitea.protogen.io/nullbite/mcserver"
@@ -9,8 +9,8 @@ license=('GPL')
 depends=('tmux')
 source=(mcserver
 mcserver@.service)
-sha256sums=('ee656e76d7a53c64f82aac7f79a5e4d36aa08a28b079b4fe0b74902e2e24dd8e'
-            'f4fbd63759bef7e99a6d0fbde67dd179817103b30d5486681b2390b8b5f047a7')
+sha256sums=('2ad18525822ff9e6136306fec8379a36151dfe682a4fd00797acb111fbb2831d'
+            '7a89d9d657cba77e3157c12f3b26a3354101bed46fcc2d3d8ac366bab4198b04')
 
 package() {
   cd "$pkgdir"

mcserver

@@ -8,6 +8,10 @@ die () {
 	exit 1
 }
 
+if [[ "$(id -u)" == 0 ]] ; then
+	die 'This script should not be run as root. Plase change the default user with `systemctl --edit mcserver@.service`'
+fi
+
 _stop_and_wait () {
 	tmux $TMUX_OPTS send-keys -t "$TMUX_SESSION" -l "$code_clear" 'stop' "$code_send"
 	echo Waiting for session to exit...
@@ -17,8 +21,8 @@ _stop_and_wait () {
 }
 
 _start () {
-	! tmux $TMUX_OPTS has-session > /dev/null 2>&1 && \
-		tmux $TMUX_OPTS new-session -d -s $TMUX_SESSION "./start.sh" || \
+	! tmux $TMUX_OPTS has-session -t "$TMUX_SESSION" > /dev/null 2>&1 && \
+		tmux $TMUX_OPTS new-session -d -s "$TMUX_SESSION" "./start.sh" || \
 		die "Instance $instance is already running."
 }
 

mcserver@.service

@@ -4,9 +4,9 @@ Wants=network.target
 After=network.target
 
 [Service]
-Type=forking
+Type=oneshot
+RemainAfterExit=true
 ExitType=cgroup
-User=nobody
 ExecStart=/usr/bin/env mcserver start %i
 ExecStop =/usr/bin/env mcserver stop %i
 RestartSec=5