#!/bin/bash

# Author: Nils Gerstner
# Last revision: 26st Januray 2019
# Version: v1.5
# Description: ssh into server from array

blue="\e[38;5;25m"
lightblue="\e[38;5;81m"
green="\033[0;32m"
red="\e[38;5;09m"
yellow="\e[38;5;11m"
grey="\e[38;5;247m"
orange="\e[38;5;208m"
nc="\033[0m" 
bold="\033[1m"

sshserver+=("exampleuser@example.com")
sshcomment+=("Example server")
sshcolor+=("$red")


sshserver+=("exampleuser@example2.com")
sshcomment+=("Second examople server")
sshcolor+=("$orange")

sshserver+=("exampleuser@example3.com")
sshcomment+=("Third example server")
sshcolor+=("$yellow")

sshserver+=("exampleuser@example4.com")
sshcomment+=("Fourth example server")
sshcolor+=("$green")

pad=" ................................................."
#pad=" -------------------------------------------------"
if [ -z "${1}" ]; then
	printf "$grey\e[7m%s$nc\n" "S E R V E R   L I S T :"
	for key in "${!sshserver[@]}"; do
		printf "$grey%2d) " "$(( ${key}+1 ))"
		printf "${sshcolor[$key]}%s$grey%s${sshcolor[$key]}%s\n$nc" "${sshserver[$key]}" "${pad:0:$((75-${#sshserver[$key]}-${#sshcomment[$key]}))}" " ${sshcomment[$key]}"
	done
fi

	re='^[0-9]+$'

	if [ -z $1 ]; then
			echo "Please choose a server to connect to"
			read pc
			#echo
	else
			pc="${1}"
	fi
  [[ $pc -eq $pc ]] && echo true || echo false
  while [[ $pc -ne $pc && $pc -gt $(($key+1)) && $ps -lt 0 ]]; do
		>&2 echo "error: '${pc}' is not a number between 1 and $(($key+1))";
		echo "Please choose a server to connect to"
		read pc
	done

# Login to server. If login fails, ssh-copy-id to server and try again.
printf "${sshcolor[$(( pc-1 ))]}%s$bold%s\n$nc" "Connecting to " "${sshserver[$(( $pc-1 ))]}"
ssh -o PasswordAuthentication=no -o ConnectTimeout=7 ${sshserver[$(( $pc-1 ))]}
unset sshserver; unset sshcomment & printf "$nc"
printf "$nc"