#!/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