# This script can create the local "dnet-repository" and copy the "settings-dnet.xml" file there.
# It also builds the project, using the aforementioned settings file.
# Then it can run the project locally.
# By giving different options, the user can either install and run locally, just install or just run the project.


# For error-handling, we cannot use the "set -e" since: it has problems https://mywiki.wooledge.org/BashFAQ/105
# So we have our own function, for use when a single command fails.
handle_error () {
  echo -e "$1"; exit $2
}

# Change the working directory to the script's directory, when running from another location.
cd "${0%/*}" || handle_error "Could not change-dir to this script's dir!" 1

if [[ $# -gt 1 ]]; then
	echo -e "Wrong number of arguments given: ${#}\nPlease execute it like: installAndRun.sh <1 | 2 | 0 (optional)> ";	exit 2
fi

justOneTask=0

if [[ $# -eq 1 ]]; then # If we have just 1 argument.
  numbers_re='^[0-9]+$'
  if ! [[ $1 =~ $numbers_re ]]; then #   If the first argument is not numeric.
	  echo -e "Invalid, non-numeric argument given: ${1}\nPlease execute it like: installAndRun.sh <1 | 2 | 0 (optional)>";	exit 3
  fi

  if [[ $1 -lt 0 || $1 -gt 2 ]]; then # If the 1st argument does NOT equal to < 0 >, < 1 > or < 2 >.
    echo -e "Invalid argument given: ${1}\nPlease execute it like: installAndRun.sh <1 | 2 | 0 (optional)>";	exit 4
  fi

  justOneTask=$1  # Assign <1>, <2> or <0>
fi

dnet_repo=~/.m2/repository-dnet45
settings_file=settings-dnet45.xml

if [[ justOneTask -eq 1 ]]; then
  if [ ! -f ${dnet_repo}"/"${settings_file} ]; then
    echo -e "The file \"${dnet_repo}/${settings_file}\" does not exist! Exiting.."; exit 5
  fi
else
  if [ ! -d ${dnet_repo} ]; then
    mkdir ${dnet_repo} || exit 6
    echo "Created the \"dnet_repo\": ${dnet_repo}"
  fi

  if [ ! -f ${dnet_repo}"/"${settings_file} ]; then
    cp ${settings_file} ${dnet_repo}"/"${settings_file} || handle_error "The file \"${settings_file}\" could not be copied in directory \"${dnet_repo}\"! Exiting.." 7
    echo "Copied the \"settings_file\" to: ${dnet_repo}/${settings_file}"
  fi

  mvn clean install -s ${dnet_repo}"/"${settings_file} || handle_error "The project could not be built. Exiting.." 8
fi

if [[ justOneTask -ne 2 ]]; then  # If we do NOT want to "justInstall".
  java -jar ./target/uoa-repository-manager-service.jar || handle_error "The project failed to execute or its execution was interrupted. Exiting.." 9
fi