#!/bin/bash

SERVER_DIR=/home/server/instance
cd $SERVER_DIR

# prepare performance opts for java

JAVA_OPTS=""

echo "eula=${EULA:-false}" > eula.txt

if [[ -n $SERVER_MEMORY ]]
then
  JAVA_OPTS="-Xms${SERVER_MEMORY} -Xmx${SERVER_MEMORY} $JAVA_OPTS"
fi

SERVER_PROPERTIES=$SERVER_DIR/server.properties
SERVER_WHITELIST=$SERVER_DIR/white-list.txt
SERVER_OPLIST=$SERVER_DIR/ops.txt
WHITELIST_PREP=$SERVER_DIR/whitelist.prep
OPLIST_PREP=$SERVER_DIR/op.prep

if [ -f $SERVER_PROPERTIES ]; then
  mv $SERVER_PROPERTIES $SERVER_PROPERTIES.bkp
  rm $SERVER_PROPERTIES
  touch $SERVER_PROPERTIES
fi

if [ -f $WHITELIST_PREP ]; then
  echo -n "" > $SERVER_WHITELIST
  cat $WHITELIST_PREP | while read u
  do
    echo "Adding $u to whitelist"

    # get uuid of user
    uuid=$(curl -s https://api.mojang.com/users/profiles/minecraft/$u | jq -r '.id')
    uuid=$(echo "${uuid:0:8}-${uuid:8:4}-${uuid:12:4}-${uuid:16:4}-${uuid:20:12}")


    if [[ $uuid == "null" ]]; then
      echo "User $u not found. Skipping."
      continue
    fi

    # write to whitelist.json
    echo "$uuid" >> $SERVER_WHITELIST;

  done
fi

if [ -f $OPLIST_PREP ]; then
  echo -n "" > $SERVER_OPLIST
  cat $OPLIST_PREP | while read u
  do
    echo "Adding $u to whitelist"

    # get uuid of user
    uuid=$(curl -s https://api.mojang.com/users/profiles/minecraft/$u | jq -r '.id')
    uuid=$(echo "${uuid:0:8}-${uuid:8:4}-${uuid:12:4}-${uuid:16:4}-${uuid:20:12}")


    if [[ $uuid == "null" ]]; then
      echo "User $u not found. Skipping."
      continue
    fi

    # write to whitelist.json
    echo "$uuid" >> $SERVER_OPLIST;

  done
fi

if [[ -n $WHITELIST ]]; then
  echo "white-list=$WHITELIST" >> $SERVER_PROPERTIES
fi

if [[ -n $SEED ]]; then
  echo "seed=$SEED" >> $SERVER_PROPERTIES
fi

if [[ -n $MAX_PLAYERS ]]; then
  echo "max-players=$MAX_PLAYERS" >> $SERVER_PROPERTIES
fi

if [[ -n $DIFFICULTY ]]; then
  echo "difficulty=$DIFFICULTY" >> $SERVER_PROPERTIES
fi

if [[ -n $MOTD ]]; then
  echo "motd=$MOTD" >> $SERVER_PROPERTIES
fi

if [[ -n $WORLD_TYPE ]]; then
  echo "world-type=$WORLD_TYPE" >> $SERVER_PROPERTIES
fi

sleep 1

# Start server
exec java $JAVA_OPTS -jar "server.jar" nogui