dotfiles/bin/crypto.sh

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#!/bin/bash
set -e
function get_value() {
local to="$1"
local from="$2"
curl "$API$from$to" 2> /dev/null | jq -r .price
}
if [ -t 1 ]; then
NORMAL='\e[0m'
BOLD='\e[1m'
fi
API='https://api.binance.com/api/v3/avgPrice?symbol='
DELIM='='
TO=EUR
# COIN=VALUE
WALLET="${XDG_CONFIG_HOME-"$HOME"/.config}/crypto/wallet"
TOTAL=0
while read -r line; do
COIN="$(echo "$line" | cut -d "$DELIM" -f 1)"
QTY="$(echo "$line" | cut -d "$DELIM" -f 2)"
MARKET="$(get_value "$TO" "$COIN")"
VALUE="$(echo "$MARKET * $QTY" | bc)"
TOTAL="$(echo "$TOTAL + $VALUE" | bc)"
printf "${BOLD}${COIN}${NORMAL}=%.2f€ " "$VALUE"
done < "$WALLET"
printf "${BOLD}TOT${NORMAL}=%.2f€\n" "$TOTAL"