optional

#!/usr/bin/env bash
# shellcheck disable=SC1091,SC1090
set -euo pipefail

reset=$(tput sgr0)
red=$(tput bold && tput setaf 1)
yellow=$(tput bold && tput setaf 3)
date_time=$(date +'%d-%m-%Y-T%H:%M:%S%z')
working_directory=$(pwd)

function error() {
  echo "[$date_time]: $*" >&2
}

function main() {
  if [[ -e /usr/bin/rpm && -e /usr/bin/dnf && -e /usr/bin/yum && -e /etc/centos-release ]]; then
    optional_helm
  elif [[ -e /usr/bin/apt && -e /usr/bin/dpkg && -e /etc/os-release && -e /etc/debian_version && ! -e /usr/bin/snap ]]; then
    optional_helm
  else
    error "$red Please ensure that you are using CentOS or Debian... $reset"
    exit 1
  fi
}

function optional_helm() {
  PS3="$yellow Would you like to install helm? [Number]: $reset"
  options=("Yes" "No" "Quit")

  select choice in "${options[@]}"; do
    case $choice in
    "Yes")
      source "$working_directory"/helm/install_helm
      install_observability
      break
      ;;
    "No")
      install_observability
      break
      ;;
    "Quit")
      break
      ;;
    *)
      echo "$red Invalid option chosen, please try again... $reset"
      ;;
    esac
  done
}

function install_observability() {
  PS3="$yellow Choose a observability solution for the cluster [Number]: $reset"
  options=("Kubernetes Dashboard" "Metrics Server" "WeaveScope" "Grafana" "Prometheus" "Choose Security Tools" "Quit")

  select observability_choice in "${options[@]}"; do
    case $observability_choice in
    "Kubernetes Dashboard")
      source "$working_directory"/observability/install_kubernetes_dashboard
      install_security
      break
      ;;
    "Metrics Server")
      source "$working_directory"/observability/install_metrics
      install_security
      break
      ;;
    "WeaveScope")
      source "$working_directory"/observability/install_weavescope
      install_security
      break
      ;;
    "Grafana")
      source "$working_directory"/observability/install_grafana
      install_security
      break
      ;;
    "Prometheus")
      source "$working_directory"/observability/install_prometheus
      install_security
      break
      ;;
    "Choose Security Tools")
      install_security
      break
      ;;
    "Quit")
      break
      ;;
    *)
      echo "$yellow Invalid option, please try again... $reset"
      ;;
    esac
  done
}

function install_security() {
  PS3="$yellow Choose a security solution for the cluster [Number]: $reset"
  options=("OPA Gatekeeper" "Falco" "Quit")

  select security_choice in "${options[@]}"; do
    case $security_choice in
    "OPA Gatekeeper")
      source "$working_directory"/security/install_opa_gatekeeper
      break
      ;;
    "Falco")
      source "$working_directory"/security/install_falco
      break
      ;;
    "Quit")
      break
      ;;
    *)
      echo "$yellow Invalid option, please try again... $reset"
      ;;
    esac
  done
}

main "$@"