#!/usr/bin/env bash

#
# Display the unity version
#

echo "Activating Unity version \"$UNITY_VERSION\"."

if [[ -n "$UNITY_LICENSE" ]]; then
  #
  # PERSONAL LICENSE MODE
  #
  # This will activate Unity, using a license file
  #
  # Note that this is the ONLY WAY for PERSONAL LICENSES in 2020.
  #   * See for more details: https://gitlab.com/gableroux/unity3d-gitlab-ci-example/issues/5#note_72815478
  #
  # The license file can be acquired using `webbertakken/request-manual-activation-file` action.
  echo "Requesting activation (personal license)"

  # Set the license file path
  FILE_PATH=UnityLicenseFile.ulf

  # Copy license file from Github variables
  echo "$UNITY_LICENSE" | tr -d '\r' > $FILE_PATH

  # Activate license
  ACTIVATION_OUTPUT=$(xvfb-run --auto-servernum --server-args='-screen 0 640x480x24' \
    /opt/Unity/Editor/Unity \
      -batchmode \
      -nographics \
      -logFile /dev/stdout \
      -quit \
      -manualLicenseFile $FILE_PATH)

  # Store the exit code from the verify command
  UNITY_EXIT_CODE=$?

  # The exit code for personal activation is always 1;
  # Determine whether activation was successful.
  #
  # Successful output should include the following:
  #
  #   "LICENSE SYSTEM [2020120 18:51:20] Next license update check is after 2019-11-25T18:23:38"
  #
  ACTIVATION_SUCCESSFUL=$(echo $ACTIVATION_OUTPUT | grep 'Next license update check is after' | wc -l)

  # Set exit code to 0 if activation was successful
  if [[ $ACTIVATION_SUCCESSFUL -eq 1 ]]; then
    UNITY_EXIT_CODE=0
  fi;

  # Remove license file
  rm -f $FILE_PATH

elif [[ -n "$UNITY_SERIAL" && -n "$UNITY_EMAIL" && -n "$UNITY_PASSWORD" ]]; then
  #
  # PROFESSIONAL (SERIAL) LICENSE MODE
  #
  # This will activate unity, using the activating process.
  #
  # Note: This is the preferred way for PROFESSIONAL LICENSES.
  #
  echo "Requesting activation (professional license)"

  # Activate license
  xvfb-run --auto-servernum --server-args='-screen 0 640x480x24' \
    /opt/Unity/Editor/Unity \
      -batchmode \
      -nographics \
      -logFile /dev/stdout \
      -quit \
      -serial "$UNITY_SERIAL" \
      -username "$UNITY_EMAIL" \
      -password "$UNITY_PASSWORD"

  # Store the exit code from the verify command
  UNITY_EXIT_CODE=$?

else
  #
  # NO LICENSE ACTIVATION STRATEGY MATCHED
  #
  # This will exit since no activation strategies could be matched.
  #
  echo "License activation strategy could not be determined."
  echo ""
  echo "Visit https://github.com/webbertakken/unity-builder#usage for more"
  echo "details on how to set up one of the possible activation strategies."

  # Immediately exit as no UNITY_EXIT_CODE can be derrived.
  exit 1;

fi

#
# Display information about the result
#
if [ $UNITY_EXIT_CODE -eq 0 ]; then
  # Activation was a success
  echo ""
  echo "###########################"
  echo "#   Activation complete   #"
  echo "###########################"
  echo ""
else
  echo ""
  echo "###########################"
  echo "#         Failure         #"
  echo "###########################"
  echo ""
  echo "Please note that the exit code is not very descriptive."
  echo "Most likely it will not help you solve the issue."
  echo ""
  echo "To find the reason for failure: please search for errors in the log above."
  echo ""
  exit $UNITY_EXIT_CODE
fi