#!/bin/bash
# Init

# Make sure only root can run
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root." 1>&2
exit 1
fi

echo "The script was run as root!"
echo "Working to install Java..."
echo "Downloading files..."
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/7u65-b17/jre-7u65-linux-x64.tar.gz
wget https://s3.amazonaws.com/Minecraft.Download/launcher/Minecraft.jar

if [ ! -f jre*x64.tar.gz ]; then
echo "Error, Java failed to download correctly, please try again..."
exit 1
fi
if [ ! -f Minecraft.jar ]; then
echo "Error, Minecraft failed to download correcly, please try again..."
exit 1
fi

# Install Java
mkdir /usr/local/java
tar xzf jre*x64.tar.gz -C /usr/local/java
JAVAVER=$(ls /usr/local/java)
echo "Java version is: $JAVAVER"
echo "JRE_HOME=/usr/local/java/$JAVAVER" >> /etc/profile
echo "PATH=\$PATH:\$HOME/bin:\$JRE_HOME/bin" >> /etc/profile
echo "export JRE_HOME" >> /etc/profile
echo "export PATH" >> /etc/profile
update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/$JAVAVER/bin/java" 1
update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/local/java/$JAVAVER/bin/javaws" 1
update-alternatives --set java /usr/local/java/$JAVAVER/bin/java
update-alternatives --set javaws /usr/local/java/$JAVAVER/bin/javaws
. /etc/profile
echo "Java is installed!"
echo
echo
echo "Java self check"
echo "----------------------------"
java -version

# Install Minecraft
mkdir /home/$SUDO_USER/.minecraft
mv Minecraft.jar /home/$SUDO_USER/.minecraft
touch /home/$SUDO_USER/Desktop/minecraft.desktop
echo '[Desktop Entry]' >> /home/$SUDO_USER/Desktop/minecraft.desktop
echo 'Name=Minecraft' >> /home/$SUDO_USER/Desktop/minecraft.desktop
echo 'Exec=java -jar /home/'$SUDO_USER'/.minecraft/Minecraft.jar' >> /home/$SUDO_USER/Desktop/minecraft.desktop
echo 'Icon=/home/'$SUDO_USER'/.minecraft/minecraft_logo.ico' >> /home/$SUDO_USER/Desktop/minecraft.desktop
echo 'Terminal=false' >> /home/$SUDO_USER/Desktop/minecraft.desktop
echo 'Type=Application' >> /home/$SUDO_USER/Desktop/minecraft.desktop
echo 'Categories=Application;' >> /home/$SUDO_USER/Desktop/minecraft.desktop
chmod +x /home/$SUDO_USER/Desktop/minecraft.desktop
wget https://dl.dropbox.com/s/l02or84ws4a1bde/minecraft_logo.ico
mv minecraft_logo.ico /home/$SUDO_USER/.minecraft
chown -R $SUDO_USER:$SUDO_USER /home/$SUDO_USER/.minecraft

# Cleanup
rm -R jre*.tar.gz