use str
use framagit.org/benjamin.vaudour/elv-lib/mods/list

var vpnType = [
  &wireguard=$nil
  &vpn=$nil
]

var shortcut = [
  &ca=ca.kaosx.cf
  &fr=fr.kaosx.cf
  &lu=luence-wg
  &lu2=luence-ovpn
  &cli=luence-client
  &nl=proton_nl5
  &jp=proton_jp2
  &us=proton_us3
]

var next = [
  &ca.kaosx.cf=fr.kaosx.cf
  &fr.kaosx.cf=luence-wg
  &luence-wg=luence-client
  &luence-ovpn=luence-client
  &luence-client=proton_nl5
  &proton_nl5=proton_us3
  &proton_us3=proton_jp2
]

fn -list {|&active=$false|
  var @argv = connection show
  if $active {
    set @argv = $@argv --active
  }
  nmcli $@argv | eawk {|_ @name uuid tpe dev|
    if (has-key $vpnType $tpe) {
      str:join ' ' $name
    }
  }
}

fn -up {|name|
  nmcli connection up $name
}

fn -down {|name|
  nmcli connection down $name
}

fn -active {||
  -list &active=$true
}

fn -is-active {|name|
  -active | list:contains $name
}

fn -next {||
  var @n = (-active | list:first {|e| has-key $next $e })
  if (== 1 (count $n)) {
    put $next[$n[0]]
  } else {
    put ca.kaosx.cf
  }
}

fn -vpn-stop {||
  var @a = (-active)
  if (== (count $a) 0) {
    echo 'Aucune connexion active'
  } else {
    -active | each $-down~
  }
}

fn -vpn-start {|name|
  if (has-key $shortcut $name) {
    set name = $shortcut[$name]
  }
  if (not (-list | list:contains $name)) {
    printf "Le VPN “%s” n’èxiste pas\n" $name
  } else {
    -active | each $-down~
    -up $name
  }
}

fn -vpn-list {||
  var @act = (-active)
  -list | each {|n|
    if (list:contains $n $act) {
      echo (styled $n green)
    } else {
      echo $n
    }
  }
}

fn -vpn-help {||
  echo 'vpn: Active ou désactive les connections VPN'
  echo 'Usage:'
  echo '  help           Affiche cette aide'
  echo '  list           Liste les VPN disponibles'
  echo '  stop           Arrête toutes les connexions VPN actives'
  echo '  <vpn>          Active la connexion VPN donnée et désactive les autres'
  echo ' (sans argument) Active la prochaine connexion VPN et désactive les autres'
}

fn -vpn {||
  -vpn-start (-next)
}

edit:add-var vpn~ {|@argv|
  var c = (count $argv)
  if (== $c 0) {
    -vpn
  } elif (!= $c 1) {
    -vpn-help
    fail 'Arguments invalides'
  } else {
    var e = $argv[0]
    if (eq $e help) {
      -vpn-help
    } elif (eq $e list) {
      -vpn-list
    } elif (eq $e stop) {
      -vpn-stop
    } else {
      -vpn-start $e
    }
  }
}