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#!/usr/bin/env bash
nick=$1
amount=$2
target=$3
source=$4
if [ "$nick" = "" ];then
echo missing argument for nick
exit 1
fi
if [ ! -d /var/cache/segfault/xchg/$nick/ ];then
/home/segfault/bin/xchg.init $nick
fi
if [ "$amount" = "" ];then
echo missing argument for amount
exit 1
fi
if [ "$target" = "" ];then
echo missing argument for target currency
exit 1
fi
if [ "$source" = "" ];then
echo missing argument for source currency
exit 1
fi
rate=1
#if [ $target != BTC ];then
# rate2=$(/home/segfault/bin/xchg.getrate $target)
# if [ "$rate2" = "null" ];then
# echo "invalid currency type $target used"
# exit 1
# fi
# rate=$(echo | awk "{print $rate / $rate2}")
#fi
#if [ $source != BTC ];then
# rate2=$(/home/segfault/bin/xchg.getrate $source)
# if [ "$rate2" = "null" ];then
# echo "invalid currency type $source used"
# exit 1
# fi
# rate=$(echo | awk "{print $rate * $rate2}")
#fi
rate=$(/home/segfault/bin/xchg.getdoublerate $source $target)
walletsrc=$(cat /var/cache/segfault/xchg/$nick/$source 2>&-)
walletdst=$(cat /var/cache/segfault/xchg/$nick/$target 2>&-)
if [ "$walletsrc" = "" ];then
walletsrc=0
fi
if [ "$walletdst" = "" ];then
walletdst=0
fi
### if other types of ways of specifying how much are added, remember to set both srcamt and amount.
if [ $amount = "all" ];then
amount="100%"
fi
if grep '%' <<< "$amount" 2>&1 > /dev/null;then
percentage="$(printf "%s\n" "$amount" | tr -cd '0-9.')"
srcamt="$(echo | awk "{print ($percentage / 100) * $walletsrc}")"
amount=$(echo | awk "{print $srcamt / $rate}")
else
srcamt=$(echo | awk "{print $amount * $rate}")
fi
if [ "$srcamt" = "" ];then
srcamt=0
fi
echo trying to buy $amount of $target for $srcamt $source...
postwalletsrc=$(echo | awk "{print $walletsrc - $srcamt}")
if printf "%s\n" $postwalletsrc | grep ^- 2>&1 > /dev/null;then
echo you, $1, would need to have $srcamt $source to buy $amount $target. you only have $walletsrc $source.
exit 1
fi
### if we got here we have enough money... guess make the purchase
#echo updating your source wallet...
echo $(echo | awk "{print $walletsrc - $srcamt}") > /var/cache/segfault/xchg/$nick/$source
#echo updating your target wallet...
echo $(echo | awk "{print $walletdst + $amount}") > /var/cache/segfault/xchg/$nick/$target
echo done
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