#!/usr/bin/env perl
use strict;
use warnings;
use Try::Tiny;
use lib 'lib';
use Hush::List;
use Hush::Util qw/barf
    is_valid_zaddr
    is_valid_taddr
/;
use Data::Dumper;
use Hush::RPC;
use File::Slurp;
use JSON;

my ($from,$to,$filename,$amount) = @ARGV;
$amount ||= 0.0;
# this is for Sprout, Sapling will not have a limit except for block size(!)
my $max_size = 512 * 54 - 54;

die "You must specify a filename!" unless $filename;
die "File does not exist!" unless -e $filename;
my $filesize = -s $filename;
die "File is empty!" unless $filesize;
die "Currently this tool only supports files which fit in one transaction, up to $max_size bytes. Patches welcome!" unless ($filesize <= $max_size);

my $memo     = read_file($filename);
my $length   = length $memo;
print "File is $length bytes\n";
my $rpc      = Hush::RPC->new;
#my $hex_memo = unpack("H*",$memo); # backend wants hex-encoded memo-field
#print "Hex memos length=" . length($hex_memo) . "\n";

unless ( is_valid_zaddr($from) or is_valid_taddr($from) ) {
    die "From address must be a valid taddr or zaddr!";
}
die "Invalid zaddr!" unless is_valid_zaddr($to);

my @hex_memos = unpack("(H1024)*", $memo);
# hexify doubles the length
my $num_memos = int(@hex_memos);
#die Dumper ['array=', @hex_memos, "string=$hex_memo" ];

print "This file will be stored in $num_memos memo fields\n";

print "z_sendmany beginning\n";
my $recipients = [];
for my $memo (@hex_memos) {
    push @$recipients, {
        address => $to,
        amount  => $amount,
        memo    => $memo,
    };
}
die Dumper [ $recipients ];

my $opid     = $rpc->z_sendmany($from,$recipients);
print "z_sendmany complete\n";
my $status = $rpc->z_getoperationstatus([[$opid]]);
warn Dumper [ $opid, $status ];