#!/bin/bash
# James Chambers - March 2nd 2019
# Minecraft Server stop script - primarily called by minecraft service but can be ran manually

# Check if server is running
if ! screen -list | grep -q "mcs"; then
  echo "Server is not currently running!"
  exit 1
fi

# Stop the server
#if [ "$1" == "announce" ]; then
  echo "Sending stop notifications to server..."
  screen -Rd mcs -X stuff "say Server is stopping in 30 seconds! $(printf '\r')"
  sleep 23s
  screen -Rd mcs -X stuff "say Server is stopping in 7 seconds! $(printf '\r')"
  sleep 1s
  screen -Rd mcs -X stuff "say Server is stopping in 6 seconds! $(printf '\r')"
  sleep 1s
  screen -Rd mcs -X stuff "say Server is stopping in 5 seconds! $(printf '\r')"
  sleep 1s
  screen -Rd mcs -X stuff "say Server is stopping in 4 seconds! $(printf '\r')"
  sleep 1s
  screen -Rd mcs -X stuff "say Server is stopping in 3 seconds! $(printf '\r')"
  sleep 1s
  screen -Rd mcs -X stuff "say Server is stopping in 2 seconds! $(printf '\r')"
  sleep 1s
  screen -Rd mcs -X stuff "say Server is stopping in 1 second! $(printf '\r')"
  sleep 1s
#fi

echo "Stopping Minecraft server ..."
screen -Rd mcs -X stuff "say Closing server (stop.sh called)...$(printf '\r')"
screen -Rd mcs -X stuff "stop$(printf '\r')"

# Wait up to 30 seconds for server to close
StopChecks=0
while [ $StopChecks -lt 30 ]; do
  if ! screen -list | grep -q "mcs"; then
    break
  fi
  sleep 1;
  StopChecks=$((StopChecks+1))
done

# Force quit if server is still open
if screen -list | grep -q "mcs"; then
  echo "Minecraft server still hasn't closed after 30 seconds, closing screen manually"
  screen -S mcs -X quit
fi

echo "Minecraft server stopped."

# Sync all filesystem changes out of temporary RAM
sync