#!/bin/bash

# Minecraft version
VERSION=1.19.3

set -e
root=$PWD
mkdir -p mc
cd mc

#export JAVA_HOME=/usr/lib/jvm/java-1.11.0-openjdk-amd64
#export PATH=$JAVA_HOME/bin:$PATH

download() {
    set -e
    echo By executing this script you agree to the JRE License, the PaperMC license,
    echo the Mojang Minecraft EULA,
    echo the NPM license, the MIT license,
    echo and the licenses of all packages used \in this project.
    echo Press Ctrl+C \if you \do not agree to any of these licenses.
    echo Press Enter to agree.
    read -s agree_text
    echo Thank you \for agreeing, the download will now begin.
    #wget -O jre.tar.gz "https://javadl.oracle.com/webapps/download/AutoDL?BundleId=242050_3d5a2bb8f8d4428bbe94aed7ec7ae784"
    #tar -zxf jre.tar.gz
    #rm -rf jre.tar.gz
    #mv ./jre* ./jre
    #echo JRE downloaded
    wget -O server.jar "https://papermc.io/api/v1/paper/$VERSION/latest/download"
    echo Paper downloaded
    wget -O server.properties "https://files.mikeylab.com/xpire/server.properties"
    echo Server properties downloaded
    echo "eula=true" > eula.txt
    echo Agreed to Mojang EULA
    echo "Download complete" 
}

require() {
    if [ ! $1 $2 ]; then
        echo $3
        echo "Running download..."
        download
    fi
}
require_file() { require -f $1 "File $1 required but not found"; }
require_dir()  { require -d $1 "Directory $1 required but not found"; }
require_env() {
  if [[ -z "${!1}" ]]; then
    echo "Environment variable $1 not set. "
    echo "Make a new secret called $1 and set it to $2"
    exit
  fi
}
require_executable() {
    require_file "$1"
    chmod +x "$1"
}

# server files
require_file "eula.txt"
require_file "server.properties"
require_file "server.jar"
# java
#require_dir "jre"
#require_executable "jre/bin/java"


# start web server
#echo "Starting web server..."
echo "Minecraft server starting, please wait" > $root/ip.txt

# start tunnel
mkdir -p ./logs
touch ./logs/temp # avoid "no such file or directory"
rm ./logs/*
orig_server_ip=`curl --silent http://127.0.0.1:4040/api/tunnels | jq '.tunnels[0].public_url'`
trimmed_server_ip=`echo $orig_server_ip | grep -o '[a-zA-Z0-9.]*\.ngrok.io[0-9:]*'`
server_ip="${trimmed_server_ip:-$orig_server_ip}"
echo "Server IP is: $server_ip"
echo "Server running on: $server_ip" > $root/ip.txt

touch logs/latest.log
# Experiment: Run http server after all ports are opened
#( tail -f ./logs/latest.log | sed '/RCON running on/ q' && python3 -m http.server 8080 ) &

# Start minecraft
#PATH=$PWD/jre/bin:$PATH
echo "Running server..."
java -Xmx1G -Xms1G -jar server.jar nogui
echo "Exit code $?"