#!/bin/bash

tunnelTmpDir="/tmp/material-browserstack"
tunnelLogFile="${tunnelTmpDir}/browserstack-local.log"
tunnelReadyFile="${tunnelTmpDir}/readyfile"
tunnelErrorFile="${tunnelTmpDir}/errorfile"

WAIT_DELAY=30

# Method that prints the logfile output of the browserstack tunnel.
printLog() {
  echo "Logfile output of Browserstack tunnel (${tunnelLogFile}):"
  echo ""
  cat ${tunnelLogFile}
}

# Wait for Connect to be ready before exiting
# Time out if we wait for more than 2 minutes, so the process won't run forever.
let "counter=0"

# Exit the process if there are errors reported. Print the tunnel log to the console.
if [ -f ${tunnelErrorFile} ]; then
  echo
  echo "An error occurred while starting the tunnel. See error:"
  printLog
  exit 5
fi

while [ ! -f ${tunnelReadyFile} ]; do
  let "counter++"

  # Counter needs to be multiplied by two because the while loop only sleeps a half second.
  # This has been made in favor of better progress logging (printing dots every half second)
  if [ $counter -gt $[${WAIT_DELAY} * 2] ]; then
    echo
    echo "Timed out after 2 minutes waiting for tunnel ready file"
    printLog
    exit 5
  fi

  printf "."
  sleep 0.5
done

echo ""
echo "Connected to Browserstack"