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