zsh_autocomplete

#!/usr/bin/env zsh
#compdef $PROG

getscs(){
 TEST=$(kubectl get sc 2>&1)
  if [ $? -eq 0 ];then
    rez=$(echo "$TEST" | tail -n +2 | cut -d" " -f1)
    echo "$rez"
  fi
}
getvscs(){
  TEST=$(kubectl get volumesnapshotclass 2>&1)
  if [ $? -eq 0 ];then
    rez=$(echo "$TEST" | tail -n +2 | cut -d" " -f1)
    echo "$rez"
  fi
}

_cli_zsh_autocomplete() {
local -a subcmds
local -a opts
local cur
cur=${words[-1]}

if [[ "$cur" == "-"* ]]; then
    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} ${cur} --generate-bash-completion)}")
else
    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} --generate-bash-completion)}")
fi

if [[ "${opts[1]}" != "" ]]; then
   _describe 'values' opts

else
    if [[ ${words[-2]} == "--sc" || ${words[-2]} == "--storageclass" ]];then
      res=$(getscs)
      while read -r line; do array+=("$line"); done <<<"$res"
      for element in "${array[@]}"
      do
        compadd $element
      done
    elif [[ ${words[-2]} == "--vsc" || ${words[-2]} == "--volumeSnapshotClass" ]];then
      ressnap=$(getvscs)
      while read -r line; do arraysnap+=("$line"); done <<<"$ressnap"
      for element in "${arraysnap[@]}"
      do
        compadd $element
      done
    else
      _files
    fi
fi

  return
}

compdef _cli_zsh_autocomplete $PROG