btc-returns

#!/usr/bin/env bash

spend=$1
low=$2
high=$3

if [ -z "$spend" ] || [ -z "$low" ] || [ -z "$high" ]
then
  printf 'usage: btc-returns <spend> <low> <high>\n'
  exit 1
fi

cad=$(curl -sL 'https://api.quadrigacx.com/v2/ticker' | jq -r .last &)
printf 'current price %s CAD\n' "$cad"

# buy
btc=$(bcalc --price "$low" "$spend" fiat to btc)
printf 'spend %s @ %s CAD of btc -> %s\n' "$spend" "$low" "$btc"

fiat_profit=$(echo "$(bcalc -n --price "$high" "$btc" to fiat) - $low" | bc -l)

btc_profit=$(bcalc --price "$high" "$fiat_profit" fiat to btc)

printf '\nfiat profit %s, btc profit %s @ %s CAD/BTC\n' "$fiat_profit" \
   "$btc_profit" "$high"