#!/usr/bin/env bash
#
# Open an interactive menu and connect to a selected server through SSH.
#
# This is useful for small operations teams that frequently access a known
# list of Linux servers. Edit the SERVERS array to match your environment.
#
# Usage:
#   bash ssh_server_menu.sh
#
# Server format:
#   "Display Name|ssh_user|hostname_or_ip|port"

set -Eeuo pipefail

SERVERS=(
  "Production Web 01|deploy|192.0.2.10|22"
  "Production Database 01|postgres|192.0.2.20|22"
  "Monitoring Server|admin|192.0.2.30|22"
  "Backup Server|backup|192.0.2.40|22"
)

print_menu() {
  clear
  printf 'SSH Server Menu\n'
  printf '===============\n\n'

  local index=1
  local item name
  for item in "${SERVERS[@]}"; do
    IFS='|' read -r name _ _ _ <<< "$item"
    printf '%s) %s\n' "$index" "$name"
    index=$((index + 1))
  done

  printf 'q) Quit\n\n'
}

connect_to_server() {
  local selected="$1"
  local name user host port

  IFS='|' read -r name user host port <<< "$selected"

  printf 'Connecting to %s (%s@%s:%s)...\n' "$name" "$user" "$host" "$port"
  ssh -p "$port" "${user}@${host}"
}

while true; do
  print_menu
  read -rp 'Choose a server: ' choice

  case "$choice" in
    q|Q)
      printf 'Bye.\n'
      exit 0
      ;;
    ''|*[!0-9]*)
      printf 'Invalid option. Press Enter to try again.'
      read -r _
      ;;
    *)
      if (( choice >= 1 && choice <= ${#SERVERS[@]} )); then
        connect_to_server "${SERVERS[$((choice - 1))]}"
      else
        printf 'Invalid option. Press Enter to try again.'
        read -r _
      fi
      ;;
  esac
done