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#!/usr/bin/perl
use strict;
use warnings;
use Math::BigFloat;
use Date::Manip;
use Data::PowerSet;
Math::BigFloat->precision(-2);
my $ZERO = Math::BigFloat->new("0.00");
my $ONE_HUNDRED = Math::BigFloat->new("100.00");
my $VERBOSE = 1;
my $DEBUG = 0;
my $LEDGER_BIN = "/usr/local/bin/ledger";
######################################################################
sub BruteForceSubSetSumSolver ($$$) {
my($numberList, $totalSought, $extractNumber) = @_;
my($P, $N) = (0, 0);
my $size = scalar(@{$numberList});
my %Q;
my(@L) =
map { { val => &$extractNumber($_), obj => $_ } } @{$numberList};
my $powerset = Data::PowerSet->new(@L);
while (my $set = $powerset->next) {
my $total = $ZERO;
foreach my $ee (@{$set}) {
$total += $ee->{val};
}
if ($totalSought == $total) {
my(@list) = map { $_->{obj} } @{$set};
return (1, \@list);
}
}
return (0, []);
}
######################################################################
sub DynamicProgrammingSubSetSumSolver ($$$) {
my($numberList, $totalSought, $extractNumber) = @_;
my($P, $N) = (0, 0);
my $size = scalar(@{$numberList});
my %Q;
my(@L) =
map { { val => &$extractNumber($_), obj => $_ } } @{$numberList};
print STDERR " TotalSought:", $totalSought if $VERBOSE;
print STDERR " L in this iteration:\n [" if $VERBOSE;
foreach my $ee (@L) {
if ($ee->{val} < 0) {
$N += $ee->{val}
} else {
$P += $ee->{val};
}
print STDERR $ee->{val}, ", " if $VERBOSE;
}
print STDERR "]\n P = $P, N = $N\n" if ($VERBOSE);
for (my $ii = 0 ; $ii <= $size ; $ii++ ) {
$Q{$ii}{0}{value} = 1;
$Q{$ii}{0}{list} = [];
}
for (my $jj = $N; $jj <= $P ; $jj++) {
$Q{0}{$jj}{value} = ($L[0]{val} == $jj);
$Q{0}{$jj}{list} = $Q{0}{$jj}{value} ? [ $L[0]{obj} ] : [];
}
for (my $ii = 1; $ii <= $size ; $ii++ ) {
for (my $jj = $N; $jj <= $P ; $jj++) {
if ($Q{$ii-1}{$jj}{value}) {
$Q{$ii}{$jj}{value} = 1;
$Q{$ii}{$jj}{list} = [] unless defined $Q{$ii}{$jj}{list};
push(@{$Q{$ii}{$jj}{list}}, @{$Q{$ii-1}{$jj}{list}});
} elsif ($L[$ii]{val} == $jj) {
$Q{$ii}{$jj}{value} = 1;
$Q{$ii}{$jj}{list} = [] unless defined $Q{$ii}{$jj}{list};
push(@{$Q{$ii}{$jj}{list}}, $jj);
} elsif ($Q{$ii-1}{$jj - $L[$ii]{val}}{value}) {
$Q{$ii}{$jj}{value} = 1;
$Q{$ii}{$jj}{list} = [] unless defined $Q{$ii}{$jj}{list};
push(@{$Q{$ii}{$jj}{list}}, $L[$ii]{obj}, @{$Q{$ii-1}{$jj - $L[$ii]{val}}{list}});
} else {
$Q{$ii}{$jj}{value} = 0;
$Q{$ii}{$jj}{list} = [];
}
}
}
foreach (my $ii = 0; $ii <= $size; $ii++) {
foreach (my $jj = $N; $jj <= $P; $jj++) {
print "Q($ii, $jj) == $Q{$ii}{$jj}{value} with List of ", join(", ", @{$Q{$ii}{$jj}{list}}), "\n";
}
}
return [ $Q{$size}{$totalSought}{value}, \@{$Q{$size}{$totalSought}{list}}];
}
######################################################################
sub Commify ($) {
my $text = reverse $_[0];
$text =~ s/(\d\d\d)(?=\d)(?!\d*\.)/$1,/g;
return scalar reverse $text;
}
######################################################################
sub ParseNumber($) {
$_[0] =~ s/,//g;
return Math::BigFloat->new($_[0]);
}
######################################################################
sub ConvertTwoDigitPrecisionToInteger ($) {
return sprintf("%d", $_[0] * $ONE_HUNDRED);
}
######################################################################
sub ConvertTwoDigitPrecisionToIntegerInEntry ($) {
return ConvertTwoDigitPrecisionToInteger($_[0]->{amount});
}
######################################################################
my $firstArg = shift @ARGV;
my $solver = \&BruteForceSubSetSumSolver;
if (@ARGV < 7) {
print STDERR "usage: $0 [-d] <TITLE> <ACCOUNT_REGEX> <END_DATE> <START_SEARCH_FROM_DATE> <END_SEARCH_TO_DATE> <BANK_STATEMENT_BALANCE> <LEDGER_OPTIONS>\n";
exit 1;
}
if ($firstArg eq '-d') {
$solver = \&DynamicProgrammingSubSetSumSolver;
} else {
unshift(@ARGV, $firstArg);
}
my($title, $account, $endDate, $startSearchFromDate, $endSearchToDate, $bankBalance, @mainLedgerOptions) = @ARGV;
$bankBalance = ParseNumber($bankBalance);
my(@fullCommand) = ($LEDGER_BIN, @mainLedgerOptions, '-V', '-X', '$',
'-e', $endDate, '-F', '%t\n', 'bal', "/$account/");
open(FILE, "-|", @fullCommand) or die "unable to run command ledger command: @fullCommand: $!";
my $total;
foreach my $line (<FILE>) {
chomp $line;
die "Unable to parse output line from: \"$line\""
unless $line =~ /^\s*\$\s*([\-\d\.\,]+)\s*$/ and not defined $total;
$total = $1;
$total = ParseNumber($total);
}
close FILE;
if (not defined $total or $? != 0) {
die "unable to run ledger @fullCommand: $!";
}
my $differenceSought = $total - $bankBalance;
my $err;
my $formattedEndDate = UnixDate(DateCalc(ParseDate($endDate), ParseDateDelta("- 1 day"), \$err),
"%Y-%m-%d");
die "Date calculation error on $endDate" if ($err);
my $earliestStartDate = DateCalc(ParseDate($endDate), ParseDateDelta("- 1 month"), \$err);
die "Date calculation error on $endDate" if ($err);
my $startDate = ParseDate($startSearchFromDate);
my @solution;
while ($startDate ge $earliestStartDate) {
$startDate = DateCalc(ParseDate($startDate), ParseDateDelta("- 1 day"), \$err);
die "Date calculation error on $endDate" if ($err);
my $formattedStartDate = UnixDate($startDate, "%Y-%m-%d");
print STDERR "Testing $formattedStartDate through $endSearchToDate for a total of ", Commify($differenceSought), ": \n"
if $VERBOSE;
my(@fullCommand) = ($LEDGER_BIN, @mainLedgerOptions, '-V', '-X', '$',
'-b', $formattedStartDate, '-e', $endSearchToDate,
'-F', '"%(date)","%C","%P","%t"\n',
'reg', "/$account/");
open(FILE, "-|", @fullCommand)
or die "unable to run command ledger command: @fullCommand: $!";
my @entries;
foreach my $line (<FILE>) {
die "Unable to parse output line from: $line"
unless $line =~ /^\s*"([^"]*)","([^"]*)","([^"]*)","([^"]*)"\s*$/;
my($date, $checkNum, $payee, $amount) = ($1, $2, $3, $4);
die "$amount is not a valid amount"
unless $amount =~ s/\s*\$\s*([\-\d\.\,]+)\s*$/$1/;
$amount = ParseNumber($amount);
push(@entries, { date => $date, checkNum => $checkNum,
payee => $payee, amount => $amount });
}
close FILE;
die "unable to properly run ledger command: @fullCommand: $!" unless ($? == 0);
@solution = $solver->(\@entries,
ConvertTwoDigitPrecisionToInteger($differenceSought),
\&ConvertTwoDigitPrecisionToIntegerInEntry);
if ($VERBOSE) {
if ($solution[0]) {
use Data::Dumper;
print STDERR "Solution for $formattedStartDate to $formattedEndDate, $differenceSought: \n",
Data::Dumper->Dump(\@solution);
} else {
print STDERR "No Solution Found. :(\n";
}
}
last if ($solution[0]);
}
if ($solution[0]) {
print "\"title:$formattedEndDate: $title\"\n\"BANK RECONCILATION: $account\",\"ENDING\",\"$formattedEndDate\"\n";
print "\n\n\"DATE\",\"CHECK NUM\",\"PAYEE\",\"AMOUNT\"\n\n";
print "\"$formattedEndDate\",\"\",\"BANK ACCOUNT BALANCE\",\"\$$bankBalance\"\n\n";
foreach my $ee (@{$solution[1]}) {
print "\"$ee->{date}\",\"$ee->{checkNum}\",\"$ee->{payee}\",\"\$$ee->{amount}\"\n";
}
print "\n\"$formattedEndDate\",\"\",\"OUR ACCOUNT BALANCE\",\"\$$total\"\n\n";
}
###############################################################################
#
# Local variables:
# compile-command: "perl -c bank-reconcilation.plx"
# End:
|
