dolar.sh

dolar.sh

#!/usr/bin/env bash

# Function to output usage instructions
function usage {
  echo "Usage: $(basename $0) <options>" >&2
  echo
  echo "Gets the current USD value" >&2
  echo
  echo "OPTIONS:" >&2
  echo "  --blue    | -b : Dólar Blue" >&2
  echo "  --oficial | -o : Dólar Oficial" >&2
}

function fetchUSDValue {
  output=`curl -s https://mercados.ambito.com/dolar/$1/variacion`
	
  buyPrice=`echo $output | jq '.compra' | sed 's/"//g'`
  sellPrice=`echo $output | jq '.venta' | sed 's/"//g'`
  variation=`echo $output | jq '.variacion' | sed 's/"//g'`
  lastClosingValue=`echo $output | jq '.valor_cierre_ant' | sed 's/"//g'`

  if [[ $variation == *-* ]]; then
    variation="🔴 $variation"
  else
    variation="🟢 $variation"
  fi
	
  echo "💵 $buyPrice / $sellPrice // $variation ($lastClosingValue)"
}

# Check arguments
if [ "$1" == "-h" -o "$1" == "--help" ]; then
  usage
  exit 0
elif [ $# -eq 0 ]; then
  echo "No file specified; reading from stdin" >&2
  exec "$0" -
fi

# Check curl is available
type curl &>/dev/null || {
  echo "Couldn't find curl, which is required." >&2
  exit 17
}

# Loop through arguments
while [ $# -gt 0 ]; do
  arg="$1"
  shift

  if [ "$arg" == "-b" -o "$arg" == "--blue" ]; then
    fetchUSDValue informal
  fi

  if [ "$arg" == "-o" -o "$arg" == "--oficial" ]; then
    fetchUSDValue oficial
  fi
done