#!/usr/bin/env bash

set -x

if [[ ! -d "lwjgl" ]] ;
then
  if [[ ! -f "lwjgl.zip" ]] ;
  then
    wget https://github.com/LWJGL/lwjgl3/releases/download/3.3.1/lwjgl.zip
  fi
  mkdir lwjgl
  unzip -d lwjgl lwjgl.zip
fi

if [[ ! -d "libgdx" ]] ;
then
  git clone https://github.com/libgdx/libgdx.git
fi

if [[ ! -f "libgdx/build/natives.zip" ]] ;
then
  cd libgdx || exit
  ./gradlew fetchNatives # Or build?
  cd ..
fi

DICE_CLASS_PATH=()

DICE_CLASS_PATH+=("./libgdx/gdx/libs/gdx-natives.jar")
DICE_CLASS_PATH+=("./libgdx/extensions/gdx-bullet/libs/gdx-bullet-natives.jar")

DICE_CLASS_PATH+=("./lwjgl/lwjgl/lwjgl-natives-linux.jar")
DICE_CLASS_PATH+=("./lwjgl/lwjgl-glfw/lwjgl-glfw-natives-linux.jar")
DICE_CLASS_PATH+=("./lwjgl/lwjgl-openal/lwjgl-openal-natives-linux.jar")
DICE_CLASS_PATH+=("./lwjgl/lwjgl-jemalloc/lwjgl-jemalloc-natives-linux.jar")

if [[ ! -d "dice-game" ]] ;
then
  mkdir -p dice-game/libs
fi

for filepath in "${DICE_CLASS_PATH[@]}" ; do
  filename="$(basename "$filepath")"
  if [[ ! -f "./dice-game/libs/$filename" ]] ;
  then
    cp "$filepath" ./dice-game/libs/
  fi
done

touch ./dice-game/COPY_dice-mac.zip_HERE

if [[ ! -f "dice-game/run.sh" ]] ;
then
cat << EOF > ./dice-game/run.sh
#/usr/bin/env bash

unzip -nj dice-mac.zip SliceAndDice.app/Contents/Resources/dice.jar

DICE_CLASS_PATH=(\${PWD}/libs/*)
DICE_CLASS_PATH+=("dice.jar")

old_IFS="\${IFS}"
IFS=':'
java -Dorg.lwjgl.util.Debug=true -Xmx1g -classpath "\${DICE_CLASS_PATH[*]}" com.tann.dice.desktop.DicetopLauncher
IFS="\${old_IFS}"
EOF
fi

chmod +x ./dice-game/run.sh

echo "Copy the dice-mac.zip file ti ${PWD}/dice-game"
echo "and execute run.sh from the dice-game directory."