#!/bin/bash
api_url=$(curl -s -X GET "https://nightscout.mgrote.net/api/v1/entries/sgv?count=1&token=polybar-ae6fe2720f2c30f4")
#echo $api_url
if [ $? -ne 0 ]; then
    echo "---"
else
   symbol=$(echo  $api_url | awk '{print $4}')
   #echo $symbol
   wert=$(echo $api_url | awk '{printf "%.1f\n",$3*0.0555}')
   #echo $wert
   case  $symbol  in
        '"SingleDown"')
          echo $wert "-"
          ;;
        '"SingleUp"')
          echo $wert "+"
          ;;
        '"DoubleDown"')
          echo $wert "--"
          ;;
        '"DoubleUp"')
          echo $wert "++"
          ;;
        '"FortyFiveDown"')
          echo $wert "\"
          ;;
        '"FortyFiveUp"')
          echo $wert "/"
          ;;
        '"Flat"')
          echo $wert "="
          ;;
        *)
          echo $symbol
          ;;
    esac
fi