# This script installs and runs 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 "\n\n$1\n\n"; 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

justInstall=0
shouldRunInDocker=0

if [[ $# -eq 1 ]]; then
	justInstall=$1
elif [[ $# -eq 2 ]]; then
  justInstall=$1
  shouldRunInDocker=$2
elif [[ $# -gt 2 ]]; then
	echo -e "Wrong number of arguments given: ${#}\nPlease execute it like: script.sh <justInstall: 0 | 1> <shouldRunInDocker: 0 | 1>";	exit 2
fi

if [[ justInstall -eq 1 && shouldRunInDocker -eq 1 ]]; then
  echo -e "Cannot run in docker without re-building the project (just to be safe). Setting \"justInstall\" to < 0 >"
  justInstall=0
fi

gradleVersion="8.2.1"

if [[ justInstall -eq 0 ]]; then

  if [[ ! -d /opt/gradle/gradle-${gradleVersion} ]]; then
    wget https://services.gradle.org/distributions/gradle-${gradleVersion}-bin.zip
    echo -e "\nAsking for sudo, in order to install 'gradle'..\n"
    sudo mkdir /opt/gradle
    sudo apt install -y unzip && sudo unzip -d /opt/gradle gradle-${gradleVersion}-bin.zip
    #ls /opt/gradle/gradle-${gradleVersion}  # For debugging installation
  fi

  export PATH=/opt/gradle/gradle-${gradleVersion}/bin:$PATH

  gradle wrapper --gradle-version=${gradleVersion} --distribution-type=bin

  #gradle tasks  # For debugging installation
  #gradle -v # For debugging installation

  gradle clean build

  if [[ shouldRunInDocker -eq 1 ]]; then

    runPrometheusAndGrafanaContainers=0 # This is set here, not through cmd-args.

    echo -e "\nBuilding the docker image and running the containers..\n"
    sudo docker --version || handle_error "Docker was not found!" 3
    (sudo mkdir -p "$HOME"/tmp/config && sudo cp ./src/main/resources/application.yml "$HOME"/tmp/config) || true  # This also replaces an existing "application.yml".
    sudo mkdir -p "$HOME"/logs || true

    # Run in "detached mode" -d (in the background).
    (sudo docker compose up --build -d && echo -e "\nThe Urls_Controller docker-container started running.\n") || handle_error "Could not build and/or run the 'urls_controller' docker container!" 4

    if [[ runPrometheusAndGrafanaContainers -eq 1 ]]; then
        (sudo docker compose -f prometheus/docker-compose-prometheus.yml up --build -d && echo -e "\nThe Prometheus and Grafana docker-containers started running.\n") || handle_error "Could not build and/or run the 'prometheus' and/or 'grafana' docker containers!" 5
    fi

    echo -e "Waiting 65 seconds before getting the status..\n"
    sleep 65
    sudo docker ps -a || handle_error "Could not get the status of docker-containers!" 6  # Using -a to get the status of failed containers as well.
    echo -e "\n\nGetting the logs of docker-container \"urls_controller\":\n"
    sudo docker logs "$(sudo docker ps -aqf "name=^urls_controller$")" || handle_error "Could not get the logs of docker-container \"urls_controller\"!" 7  # Using "regex anchors" to avoid false-positives. Works even if the container is not running, thus showing the error-log.
  fi
else
  export PATH=/opt/gradle/gradle-${gradleVersion}/bin:$PATH # Make sure the gradle is still accessible (it usually isn't without the "export").
fi

if [[ shouldRunInDocker -ne 1 ]]; then
  gradle bootRun
fi