#!/bin/bash

rm -f last_checkpoint.out

if [ "$1" == "local" ]; then
  inference_mode=local
else
  inference_mode=remote
fi

if [ "$2" == "cartpole" ]; then
  server_script=cartpole_server.py
  client_script=cartpole_client.py
  stop_criterion="--stop-reward=150.0"
else
  server_script=unity3d_server.py
  client_script=unity3d_dummy_client.py
  stop_criterion="--num-episodes=10"
fi

pkill -f $server_script
sleep 1

if [ -f test_policy_client_server_setup.sh ]; then
    basedir="../../examples/serving"
else
    basedir="rllib/examples/serving"  # In bazel.
fi


# Start server with 2 workers (will listen on ports 9900 and 9901 for client
# connections).
# Do not attempt to restore from checkpoint; leads to errors on travis.
(python $basedir/$server_script --run=PPO --num-workers=2 --no-restore 2>&1 | grep -v 200) &
server_pid=$!

echo "Waiting for server to start ..."
while ! curl localhost:9900; do
  sleep 1
done
echo "Remote worker #1 on port 9900 is up!"
while ! curl localhost:9901; do
  sleep 1
done
echo "Remote worker #2 on port 9901 is up!"

# Start client 1 (connect to port 9900).
sleep 2
(python $basedir/$client_script --inference-mode=$inference_mode --port=9900) &
client1_pid=$!

# Start client 2 (connect to port 9901).
sleep 2
(python $basedir/$client_script --inference-mode=$inference_mode --port=9901) &
client2_pid=$!

# Start client 3 (also connecting to port 9901) and run it until it reaches
# x reward (CartPole) or n episodes (dummy Unity3D).
# Then stop everything.
sleep 2
python $basedir/$client_script $stop_criterion --inference-mode=$inference_mode --port=9901

kill $server_pid $client1_pid $client2_pid || true