#!/bin/bash
#
# setupMMC.sh
# This sets up modded minecraft java server using cursedforge
# Checks if you have java and gets it set up
# Make sure to use minecraft user and no other

# Home Directory of minecraft user after being made
homeMC="/home/minecraft/minecraft_server"

# Link to minecraft server.jar
sourceLink="https://maven.minecraftforge.net/net/minecraftforge/forge/1.19.2-43.3.0/forge-1.19.2-43.3.0-installer.jar"

sudo apt install default-jre -y

sudo adduser --disabled-password --comment "minecraft"  minecraft
echo "minecraft:vm" | sudo chpasswd

echo "vm" | su -c "mkdir $homeMC; wget -P $homeMC $sourceLink" minecraft

# Heredoc to save into start.txt, easy to install server and run afterwards
cat - > $HOME/start.txt << "start"
java -jar forge-1.19.2-43.3.0-installer.jar -installServer
echo ./run.sh nogui > start.txt
start

# Moves start.txt from current directory to minecraft user
sudo chown minecraft:minecraft start.txt
sudo mv $HOME/start.txt $homeMC

# Firewall setup
sudo apt install firewalld -y
sudo firewall-cmd --zone=public --add-port=25565/tcp --permanent
sudo firewall-cmd --zone=public --add-port=25565/udp --permanent

sudo firewall-cmd --reload
sudo firewall-cmd --list-ports
sudo systemctl status firewalld

echo Finished, build the server with start.txt and consider changing the password