#!/bin/bash

CONFIG=~/.bitvaluerc

if [ ! -f $CONFIG ]; then
    cat << EOF > $CONFIG
EXCHANGE="bitstamp"
CURRENCY="EUR"
ZERO_RATE="1"
ZERO_VALUE="1"
EOF
    echo "Created config: $CONFIG - Adapt config parameters!"
fi

source $CONFIG

if [ ! -z "$1" ]; then
    TIMESPAN="$1"
else
    TIMESPAN="30d"
fi

cat << EOF | gnuplot
set terminal dumb
set datafile separator ","
set xdata time
set timefmt "%Y-%m-%d %H:%M:%S UTC"
set title "EXCHANGE: $EXCHANGE | TIMESPAN: $TIMESPAN\nZERO RATE: $ZERO_RATE $CURRENCY | ZERO VALUE: $ZERO_VALUE $CURRENCY"
plot "< wget -q -O - \"https://data.bitcoinity.org/export_data.csv?currency=$CURRENCY&data_type=price&exchange=$EXCHANGE&t=l&timespan=$TIMESPAN\"" \
     using 1:(\$3/$ZERO_RATE*$ZERO_VALUE) with lines title ""
EOF