zsend

#!/bin/bash
#
# Script to simplify sending a specified amount to/from z addressess
#
# Usage: zsend <coinname> <fromaddress> <toaddress> <amounttosend> <memo>
#
# @author webworker01
#
scriptpath="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
source $scriptpath/main

if [[ -z $1 ]] || [[ -z $2 ]] || [[ -z $3 ]] || [[ -z $4 ]]; then
    echo "Usage: zsend <coinname> <fromaddress> <toaddress> <amounttosend> <memo (optional)>"
    exit 0
fi

if [[ ${1^^} != "KMD" ]]; then
    coin=${1^^}
    asset="-ac_name=${coin}"
else
    coin="KMD"
    asset=""
fi

fromaddress=$2
toaddress=$3
amounttosend=$4
memo=$5

feeamount=0.0001

#get balance
zbalance=$($komodocli $asset z_getbalance $fromaddress)

if (( $(echo "$amounttosend + $feeamount > $zbalance" | bc -l) )); then
    echo "You cannot send more than your shielded balanced of $zbalance!"
    exit 0
fi

change=$( printf "%.8f" $(bc -l <<< "($zbalance-$amounttosend-$feeamount)") )

echo "Balance: $zbalance"
echo "Send: $amounttosend"
echo "Fee: $feeamount"
echo "Change: $change"

if [[ ! -z ${memo} ]]; then

    hexmemo=$(echo -n ${memo} | xxd -ps -u -l 512 -c 512)
    reversehexmemo=$(echo -n ${hexmemo} | xxd -r -p)

    if [[ "${reversehexmemo}" != "${memo}" ]]; then
        echo "Warning your memo may have been truncated because it is too long:"
        echo ${reversehexmemo}
    fi

    memotxstring=",\"memo\":\"${hexmemo}\""
else
    memotxstring=""
fi

if [[ $change == "0.00000000" ]]; then
    echo "${komodocli} ${asset} z_sendmany ${fromaddress} '[{"address":\"${toaddress}\","amount":${amounttosend}${memotxstring}}]' 1"
else
    echo "${komodocli} ${asset} z_sendmany ${fromaddress} '[{"address":\"${toaddress}\","amount":${amounttosend}${memotxstring}},{"address":\"${fromaddress}\","amount":${change}]' 1"
fi

read -p "Do you want to execute this transaction? (y/n)" -n 1 DOZSEND
echo

if [[ $DOZSEND =~ ^[Yy]$ ]]; then
    if [[ $change == "0.00000000" ]]; then
        opid=$( ${komodocli} ${asset} z_sendmany ${fromaddress} '[{"address":"'''${toaddress}'''","amount":'''${amounttosend}${memotxstring}'''}]' 1 )
    else
        opid=$( ${komodocli} ${asset} z_sendmany ${fromaddress} '[{"address":"'''${toaddress}'''","amount":'''${amounttosend}${memotxstring}'''},{"address":"'''${fromaddress}'''","amount":'''${change}'''}]' 1 )
    fi
    echo $opid
fi