#!/bin/bash -e
# This script launches vidforward. This is used by the service file.

# Check that we have the correct number of arguments passed.
if [ $# -ne 2 ]; then
  echo "incorrect number of arguments, expected gopath user and binary directory"
  exit 1
fi

# This is the user in the GOPATH e.g. for /home/foo/go the user is foo.
gopath_user=$1

# This is the dir of the binary from the GOPATH e.g. /src/bitbucket.org/ausocean/av/cmd/vidforward.
bin_dir=$2

# We'll get the bin name from the bin dir (assuming this is same as the bin dir name).
bin_name=$(basename $bin_dir)

# the following required directories _should_ already exist
if [ ! -d /var/log/vidforward ]; then
  sudo mkdir /var/log/vidforward
  chmod guo+rwx /var/log/vidforward
fi

# show IP addresses
echo Our IP addresses:
sudo ip addr show | grep inet

# capture stdout and stderr to a secondary log file (just in case)
exec 2> /var/log/vidforward/stream.log
exec 1>&2

# Now set all required variables.
HOME=/home/$gopath_user
GOPATH=$HOME/go
VIDFORWARD_PATH=$GOPATH$bin_dir
PATH=$PATH:/usr/local/go/bin:$VIDFORWARD_PATH
cd $VIDFORWARD_PATH
sudo -u $gopath_user HOME=$HOME GOPATH=$GOPATH PATH=$PATH ./$bin_name
if [ $? -eq 0 ]
then
  echo "Successfully exited vidforward"
  exit 0
else
  echo "vidforward exited with code: $?" >&2
  exit 1
fi