#!/usr/bin/perl

use DBI;
use Getopt::Std;
###################################################
# GLOBALS
$dbname = "phpgroupware";
$dbhost = "192.168.0.2";
$dbport = 3306;
$dbuser = "phpgroupware";
$dbpass = "phpgroupware";
%hometeaching_data = ();
%membership_data = ();
getopts('vsn:o:');

$monthname2num{'Jan'} = '01';
$monthname2num{'Feb'} = '02';
$monthname2num{'Mar'} = '03';
$monthname2num{'Apr'} = '04';
$monthname2num{'May'} = '05';
$monthname2num{'Jun'} = '06';
$monthname2num{'Jul'} = '07';
$monthname2num{'Aug'} = '08';
$monthname2num{'Sep'} = '09';
$monthname2num{'Oct'} = '10';
$monthname2num{'Nov'} = '11';
$monthname2num{'Dec'} = '12';

######################################################################
# SUBROUTINES
######################################################################
sub csv_to_hash
{
    my ($filename, $hashref) = @_;

    open(FILE,$filename) || die "-E- Could not open $filename for reading\n";

    my $found_header = 0; my $index = 0;
    while(<FILE>)
    {
	$line = $_;
	@data = split /\",/, $line;
	if(!$found_header) { @header = @data; $found_header = 1; }
	else {
	    foreach $i (0..$#data-1) {
		$data[$i] =~ s/\"//g;
		$header[$i] =~ s/\"//g;
	        $hashref->{$index}{$header[$i]} = $data[$i];
		#print "$index: $i: $header[$i]: $data[$i]\n";
	    }
	    $index++;
	}
    }
    
    close(FILE);
}

######################################################################
sub print_hash
{
    my ($hashref) = @_;

    foreach $key (sort {$a <=> $b} keys %$hashref) {
	print "Index: $key\n";
	foreach $field (keys %{$hashref->{$key}}) {
	    print "$field: $hashref->{$key}{$field}\n";
	}
	print "\n";
    }
}

######################################################################

# EQ_AARONIC
#+-------+--------------------+------+-----+---------+-------+
#| Field | Type               | Null | Key | Default | Extra |
#+-------+--------------------+------+-----+---------+-------+
#| aaronic | int(16) unsigned |      | PRI | 0       |   A   |
#| name    | varchar(60)      | YES  |     | NULL    |       |
#| valid   | tinyint(1)       | YES  |     | NULL    |       |
#+-------+--------------------+------+-----+---------+-------+
sub update_eq_aaronic_table
{
    print "-> Updating eq_aaronic table\n";
    foreach $index (keys %membership_data)
    {
	$hashref = $membership_data{$index};
	foreach $key (keys %$hashref) {
	    if($key =~ /Priesthood/i &&
	       ($membership_data{$index}{$key} =~ /^Teacher\s*$/i ||
		$membership_data{$index}{$key} =~ /^Priest\s*$/i)) {
		$aaronic_name = $membership_data{$index}{'Preferred Name'};
		$sth = $dbh->prepare("select * from eq_aaronic where name='$aaronic_name'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		my @data = ();
		while($sqlhashref = $sth->fetchrow_hashref) { push(@data, $sqlhashref); }
		my $rows = scalar @data;
		if($rows == 0) {
		    # No existing records found for this aaronic, make a new entry
		    print "   Adding new Aaronic: $aaronic_name\n";
		    $sth = $dbh->prepare("insert into eq_aaronic values (NULL,'$aaronic_name',1)");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} elsif($rows == 1) {
		    # An existing record was found for this aaronic, update it if it is valid
		    if($data[0]->{valid} == 1) {
			print "   Updating existing aaronic: $aaronic_name\n";
		    }
		} else {
		    # More than one record was found. Error! This shouldn't happen.
		    print "   -E- More than one record found ($rows) for aaronic name: $aaronic_name\n";
		}
	    }
	}
    }
    $sth->finish();
}

# EQ_ELDER
#+------------+------------------+------+-----+---------+-------+
#| Field      | Type             | Null | Key | Default | Extra |
#+------------+------------------+------+-----+---------+-------+
#| elder      | int(16) unsigned |      | PRI | 0       |   A   |
#| name       | varchar(60)      | YES  |     | NULL    |       |
#| valid      | tinyint(1)       | YES  |     | NULL    |       |
#+------------+------------------+------+-----+---------+-------+
sub update_eq_elder_table
{
    print "-> Updating eq_elder table\n";

    # Set all records to be invalid. Only mark them as valid if they appear on the new list.
    $sth = $dbh->prepare("update eq_elder set valid=0");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    
    foreach $index (keys %membership_data)
    {
	$hashref = $membership_data{$index};
	foreach $key (keys %$hashref) {
	    if($key =~ /Priesthood/i && $membership_data{$index}{$key} =~ /Elder/i) {
		$elder_name = $membership_data{$index}{'Preferred Name'};
		$sth = $dbh->prepare("select * from eq_elder where name='$elder_name'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		my @data = ();
		while($sqlhashref = $sth->fetchrow_hashref) { push(@data, $sqlhashref); }
		my $rows = scalar @data;
		if($rows == 0) {
		    # No existing records found for this elder, make a new entry
		    print "   Adding new Elder: $elder_name\n";
		    $sth = $dbh->prepare("insert into eq_elder values (NULL,'$elder_name',1)");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} elsif($rows == 1) {
		    # An existing record was found for this elder, update it
		    print "   Updating existing Elder: $elder_name\n";
		    $sth = $dbh->prepare("update eq_elder set valid=1 where name='$elder_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} else {
		    # More than one record was found. Error! This shouldn't happen.
		    print "   -E- More than one record found ($rows) for Elder: $elder_name\n";
		}
	    }
	}
    }
    $sth->finish();
}

# EQ_DISTRICT
#+------------+------------------+------+-----+---------+-------+
#| Field      | Type             | Null | Key | Default | Extra |
#+------------+------------------+------+-----+---------+-------+
#| district   | int(16) unsigned |      | PRI | 0       |       |
#| name       | varchar(30)      | YES  |     | NULL    |       |
#| supervisor | int(16) unsigned | YES  |     | NULL    |       |
#| valid      | tinyint(1)       | YES  |     | NULL    |       |
#+------------+------------------+------+-----+---------+-------+
sub update_eq_district_table
{
    # Districts should be created by hand. This subroutine only
    # updates the supervisor's ID in each district.
    print "-> Updating eq_district table\n";
    $sth = $dbh->prepare("select * from eq_district");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    while($sqlhashref = $sth->fetchrow_hashref) {
	$supervisor_name = $sqlhashref->{name};
	$district = $sqlhashref->{district};
	$sth2 = $dbh->prepare("select * from eq_elder where name='$supervisor_name'");
	$sth2->execute or die "-E- DB error: $DBI::errstr\n";
	$sqlhashref2 = $sth2->fetchrow_hashref;
	$supervisor_id = $sqlhashref2->{elder};
	$sth2->finish();
	$sth2 = $dbh->prepare("update eq_district set supervisor='$supervisor_id' where district='$district'");
	$sth2->execute or die "-E- DB error: $DBI::errstr\n";
	$sth2->finish();
    }
    $sth->finish();
}

# EQ_COMPANIONSHIP
#+---------------+------------------+------+-----+---------+-------+
#| Field         | Type             | Null | Key | Default | Extra |
#+---------------+------------------+------+-----+---------+-------+
#| companionship | int(16) unsigned |      |     | 0       |       |
#| elder         | int(16) unsigned | YES  |     | NULL    |       |
#| aaronic       | int(16) unsigned | YES  |     | NULL    |       |
#| district      | int(16) unsigned | YES  |     | NULL    |       |
#| valid         | tinyint(1)       | YES  |     | NULL    |       |
#+---------------+------------------+------+-----+---------+-------+
sub update_eq_companionship_table
{
    print "-> Updating eq_companionship table\n";

    # First, mark all existing companionships as invalid in case they have been dissolved
    $sth = $dbh->prepare("update eq_companionship set valid=0");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    # Second, mark all the aaronic invalid. We'll only mark the ones as valid that are assigned to hometeach
    $sth = $dbh->prepare("update eq_aaronic set valid=0");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    
    foreach $index (keys %hometeaching_data)
    {
	$hashref = $hometeaching_data{$index};
	foreach $key (keys %$hashref) {
	    if($key =~ /Quorum/i && $hometeaching_data{$index}{$key} =~ /Elders/i) {
		foreach $field ("Home Teacher 1","Home Teacher 2") {
		    $elder_name = $hometeaching_data{$index}{$field};
		    if($elder_name eq "") { next; }
		    $sth2 = $dbh->prepare("select * from eq_elder where name='$elder_name'");
		    $sth2->execute or die "-E- DB error: $DBI::errstr\n";
		    $sqlhashref2 = $sth2->fetchrow_hashref;
		    $elder = $sqlhashref2->{elder};
		    $aaronic = "NULL";
		    if($elder eq "") {
			$sth2 = $dbh->prepare("select * from eq_aaronic where name='$elder_name'");
			$sth2->execute or die "-E- DB error: $DBI::errstr\n";
			$sqlhashref2 = $sth2->fetchrow_hashref;
			$aaronic = $sqlhashref2->{aaronic};
			$elder = "NULL";
			if($aaronic eq "") { print "-W- Unable to find $elder_name in eq_elder or eq_aaronic tables\n"; }
		    } 
		    $id = $hometeaching_data{$index}{'Comp ID'};
		    $district = $hometeaching_data{$index}{'HT District'};
		    $sth = $dbh->prepare("select * from eq_companionship where elder='$elder' and aaronic='$aaronic' and companionship='$id'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		    my @data = ();
		    while($sqlhashref = $sth->fetchrow_hashref) { push(@data, $sqlhashref); }
		    my $rows = scalar @data;
		    if($rows == 0) {
			# No existing records found for this companionship, make a new entry
			print "   Adding Elder to companionship: $elder_name -> $id\n";
			$sth = $dbh->prepare("insert into eq_companionship values ($id,'$elder','$aaronic','$district',1)");
			$sth->execute or die "-E- DB error: $DBI::errstr\n";
		    } else {
			# An existing companionship was found for this companionship, update it
			$sth2 = $dbh->prepare("select * from eq_companionship where district='$district' and companionship='$id'");
			$sth2->execute or die "-E- DB error: $DBI::errstr\n";
			if($elder ne "NULL") {
			    print "   Updating Companionship with Elder: $elder_name ($elder) -> $id\n";
			    $sth = $dbh->prepare("update eq_companionship set district='$district' where elder='$elder' and companionship='$id'");
			    $sth->execute or die "-E- DB error 'district': $DBI::errstr\n";
			    $sth = $dbh->prepare("update eq_companionship set elder='$elder' where elder='$elder' and companionship='$id'");
			    $sth->execute or die "-E- DB error 'elder': $DBI::errstr\n";
			    $sth = $dbh->prepare("update eq_companionship set valid=1 where elder='$elder' and companionship='$id'");
			    $sth->execute or die "-E- DB error 'valid': $DBI::errstr\n";
			} else {
			    print "   Updating Companionship with Aaronic: $elder_name ($aaronic) -> $id\n";
			    $sth = $dbh->prepare("update eq_companionship set district='$district' where aaronic='$aaronic' and companionship='$id'");
			    $sth->execute or die "-E- DB error: $DBI::errstr\n";
			    $sth = $dbh->prepare("update eq_companionship set aaronic='$aaronic' where aaronic='$aaronic' and companionship='$id'");
			    $sth->execute or die "-E- DB error: $DBI::errstr\n";
			    $sth = $dbh->prepare("update eq_companionship set valid=1 where aaronic='$aaronic' and companionship='$id'");
			    $sth->execute or die "-E- DB error: $DBI::errstr\n";			    
			    $sth = $dbh->prepare("update eq_aaronic set valid=1 where aaronic='$aaronic'");
			    $sth->execute or die "-E- DB error: $DBI::errstr\n";
			}
		    }
		    $sth->finish();
		    $sth2->finish();		    
		}
	    }
	}
    }
}

# EQ_FAMILY
#+---------------+------------------+------+-----+---------+-------+
#| Field         | Type             | Null | Key | Default | Extra |
#+---------------+------------------+------+-----+---------+-------+
#| family        | int(16) unsigned |      | PRI | 0       |   A   |
#| hofh_id       | int(16) unsigned | YES  |     | NULL    |       |
#| name          | varchar(30)      | YES  |     | NULL    |       |
#| companionship | int(16) unsigned | YES  |     | NULL    |       |
#| valid         | tinyint(1)       | YES  |     | NULL    |       |
#+---------------+------------------+------+-----+---------+-------+
sub update_eq_family_table
{
    print "-> Updating eq_family table\n";

    # Set all records to be invalid. Only mark them as valid if they appear on the new list.
    $sth = $dbh->prepare("update eq_family set valid=0");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    
    foreach $index (keys %membership_data)
    {
	$hashref = $membership_data{$index};
	foreach $key (keys %$hashref) {
	    if($key =~ /HH Position/i && $membership_data{$index}{$key} =~ /Head of Household/i) {
		$family_name = $membership_data{$index}{'Preferred Name'};
		$family_name =~ s/\'/\\'/g; #'
		$id = $membership_data{$index}{'HofH ID'};

		# Find out how many families match this family's name
		$sth = $dbh->prepare("select * from eq_family where name='$family_name'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		my @data = ();
		while($sqlhashref = $sth->fetchrow_hashref) { push(@data, $sqlhashref); }
		my $rows = scalar @data;
		
		if($rows == 0) {
		    # No existing records found for this family, make a new entry
		    print "   Adding new Family: $family_name\n";
		    $sth = $dbh->prepare("insert into eq_family values (NULL,$id,'$family_name','0',1)");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} elsif($rows == 1) {
		    # An existing record was found for this family, update it
		    print "   Updating existing family: $family_name\n";
		    $sth = $dbh->prepare("update eq_family set hofh_id=$id where name='$family_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		    $sth = $dbh->prepare("update eq_family set valid=1 where name='$family_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} else {
		    # More than one record was found. Error! This shouldn't happen.
		    print "   -E- More than one record found ($rows) for family name: $family_name\n";
		}
		# Now update the hometeaching field for this family
		foreach $index (keys %hometeaching_data)
		{
		    $hashref = $hometeaching_data{$index};
		    foreach $key (keys %$hashref) {
			if($hometeaching_data{$index}{'Household'} =~ /(\S+)\s+(\S+),\s+(\S+)\s+(.*)/) {
			    print "I: Adjusting hometeaching match from: $hometeaching_data{$index}{'Household'} to $1, $3 $4\n";
			    $hometeaching_data{$index}{'Household'} = "$1, $3 $4";
			}
			if($key =~ /Quorum/i &&
			   $hometeaching_data{$index}{$key} =~ /Elders/i &&
			   $hometeaching_data{$index}{'Household'} =~ /$family_name/ &&
			   $data[0]->{companionship} != $hometeaching_data{$index}{'Comp ID'}
			   )
			{
			    print "   Updating hometeaching assignment for $family_name family\n";
			    $companionship = $hometeaching_data{$index}{'Comp ID'};
			    $sth = $dbh->prepare("update eq_family set companionship='$companionship' where name='$family_name'");
			    $sth->execute or die "-E- DB error: $DBI::errstr\n";
			}
		    }
		}
		$sth->finish();
	    }
	}
    }
}

# EQ_PARENT
#+----------+------------------+------+-----+---------+-------+
#| Field    | Type             | Null | Key | Default | Extra |
#+----------+------------------+------+-----+---------+-------+
#| parent   | int(16) unsigned |      | PRI | 0       |   A   |
#| family   | int(16) unsigned | YES  |     | NULL    |       |
#| name     | varchar(30)      | YES  |     | NULL    |       |
#| birthday | date             | YES  |     | NULL    |       |
#| valid    | tinyint(1)       | YES  |     | NULL    |       |
#+----------+------------------+------+-----+---------+-------+
sub update_eq_parent_table
{
    print "-> Updating eq_parent table\n";

    # Set all records to be invalid. Only mark them as valid if they appear on the new list.
    $sth = $dbh->prepare("update eq_parent set valid=0");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    
    foreach $index (keys %membership_data)
    {
	$hashref = $membership_data{$index};
	foreach $key (keys %$hashref) {
	    if($key =~ /HH Position/i &&
	       $membership_data{$index}{$key} =~ /Head of Household/i ||
	       $membership_data{$index}{$key} =~ /Spouse/i
	       ) {
		# Get some information from the hash about this parent
		$parent_name = $membership_data{$index}{'Preferred Name'};
		$parent_name =~ s/\'/\\'/g; #'
		$birthday = $membership_data{$index}{'Birth'};
		$birthday =~ /(\d+) (\S+) (\d+)/; $day=$1; $month=$monthname2num{$2}; $year=$3;
		$hofh_id = $membership_data{$index}{'HofH ID'};

		# Find the family id for this parent's HofH_ID.
		$sth = $dbh->prepare("select * from eq_family where hofh_id='$hofh_id'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		$sqlhashref = $sth->fetchrow_hashref();
		$family_id = $sqlhashref->{'family'};

		# Find out how many parents match this parent's name
		$sth = $dbh->prepare("select * from eq_parent where name='$parent_name'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		my @data = ();
		while($sqlhashref = $sth->fetchrow_hashref) { push(@data, $sqlhashref); }
		my $rows = scalar @data;
		
		if($rows == 0) {
		    # No existing records found for this parent, make a new entry
		    print "   Adding new Parent: $parent_name\n";
		    $sth = $dbh->prepare("insert into eq_parent values (NULL,$family_id,'$parent_name','$year-$month-$day',1)");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} elsif($rows == 1) {
		    # An existing record was found for this parent, update it
		    print "   Updating existing parent: $parent_name\n";
		    $sth = $dbh->prepare("update eq_parent set family='$family_id' where name='$parent_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		    $sth = $dbh->prepare("update eq_parent set birthday='$year-$month-$day' where name='$parent_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		    $sth = $dbh->prepare("update eq_parent set valid=1 where name='$parent_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
	    } else {
		    # More than one record was found. Error! This shouldn't happen.
		    print "   -E- More than one record found with same parent name: $parent_name\n";
		}
		$sth->finish();
	    }
	}
    }
}

# EQ_CHILD
#+----------+------------------+------+-----+---------+-------+
#| Field    | Type             | Null | Key | Default | Extra |
#+----------+------------------+------+-----+---------+-------+
#| child    | int(16) unsigned |      | PRI | 0       |   A   |
#| family   | int(16) unsigned | YES  |     | NULL    |       |
#| name     | varchar(30)      | YES  |     | NULL    |       |
#| birthday | date             | YES  |     | NULL    |       |
#| valid    | tinyint(1)       | YES  |     | NULL    |       |
#+----------+------------------+------+-----+---------+-------+
sub update_eq_child_table
{
    print "-> Updating eq_child table\n";

    # Set all records to be invalid. Only mark them as valid if they appear on the new list.
    $sth = $dbh->prepare("update eq_child set valid=0");
    $sth->execute or die "-E- DB error: $DBI::errstr\n";
    
    foreach $index (keys %membership_data)
    {
	$hashref = $membership_data{$index};
	foreach $key (keys %$hashref) {
	    if($key =~ /HH Position/i && $membership_data{$index}{$key} =~ /Other/i ) {
		$child_name = $membership_data{$index}{'Full Name'};
		$child_name =~ s/\'/\\'/g; #'
		$birthday = $membership_data{$index}{'Birth'};
		$birthday =~ /(\d+) (\S+) (\d+)/; $day=$1; $month=$monthname2num{$2}; $year=$3;
		$id = $membership_data{$index}{'Indiv ID'};
		$hofh_id = $membership_data{$index}{'HofH ID'};

		# Find the family id for this child's HofH_ID.
		$sth = $dbh->prepare("select * from eq_family where hofh_id='$hofh_id'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		$sqlhashref = $sth->fetchrow_hashref();
		$family_id = $sqlhashref->{'family'};

		# Find out how many children have the same name for the same family
		$sth = $dbh->prepare("select * from eq_child where name='$child_name'");
		$sth->execute or die "-E- DB error: $DBI::errstr\n";
		my @data = ();
		while($sqlhashref = $sth->fetchrow_hashref) { push(@data, $sqlhashref); }
		my $rows = scalar @data;
		
		if($rows == 0) {
		    # No existing records found for this child, make a new entry
		    print "   Adding new Child: $child_name\n";
		    $sth = $dbh->prepare("insert into eq_child values (NULL,$family_id,'$child_name','$year-$month-$day',1)");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} elsif($rows == 1) {
		    # An existing record was found for this child, update it
		    print "   Updating existing child: $child_name\n";
		    $sth = $dbh->prepare("update eq_child set family='$family_id' where name='$child_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		    $sth = $dbh->prepare("update eq_child set birthday='$year-$month-$day' where name='$child_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		    $sth = $dbh->prepare("update eq_child set valid=1 where name='$child_name'");
		    $sth->execute or die "-E- DB error: $DBI::errstr\n";
		} else {
		    # More than one record was found. Error! This shouldn't happen.
		    print "   -E- More than one record found ($rows) with same child name: $child_name\n";
		}
		$sth->finish();
	    }
	}
    }
}

######################################################################
sub check_for_changed_ids
{
    # If the Indiv ID & HofH ID has changed between data sets, we could have problems
    my ($oldhashref, $newhashref) = @_;
    my $found_problem = 0;
    
    foreach $oldindex (keys %$oldhashref)
    {
	$indiv_id = $oldhashref->{$oldindex}{'Indiv ID'};
	$hofh_id  = $oldhashref->{$oldindex}{'HofH ID'};
	$full_name = $oldhashref->{$oldindex}{'Full Name'};
	$hh_position = $oldhashref->{$oldindex}{'HH Position'};
	if($hh_position =~ /Other/i) { next; }

	foreach $newindex (keys %$newhashref)
	{
	    if($newhashref->{$newindex}{'Full Name'} eq $full_name &&
	       $indiv_id != $newhashref->{$newindex}{'Indiv ID'})
	    {
		print "-W- Indiv ID for $full_name changed from $indiv_id to $newhashref->{$newindex}{'Indiv ID'}\n";
		$found_problem = 1;
	    }

	    if($newhashref->{$newindex}{'Full Name'} eq $full_name &&
	       $hofh_id != $newhashref->{$newindex}{'HofH ID'})
	    {
		print "-W- HofH ID for $full_name changed from $hofh_id to $newhashref->{$newindex}{'HofH ID'}\n";
		$found_problem = 1;
	    }
	}
    }
    
    return $found_problem;
}

######################################################################
# MAIN
######################################################################

###################################################
# Open a connection to the database
$dbh=DBI->connect("dbi:mysql:dbname=$dbname;host=$dbhost port=$dbport",$dbuser,$dbpass,{
    AutoCommit=>0,
    PrintError=>0}) or print "Connect Failure:".$DBI::errstr."\n" and exit 2;

###################################################
# Check old directory against new directory to ensure
# that the Indiv ID & HofH ID have not changed between updates
if(defined $opt_o) {
    print "-> Comparing old data files to new ones: $opt_o => $opt_n\n";
    my %old_membership_data = ();
    my %new_membership_data = ();
    &csv_to_hash("$opt_o/Membership.csv",\%old_membership_data);
    &csv_to_hash("$opt_n/Membership.csv",\%new_membership_data);

    $changed_ids=&check_for_changed_ids(\%old_membership_data, \%new_membership_data);
    
    if($changed_ids) {
	print "\n";
	print "-E- Some Indiv IDs and HofH IDs have changed for Head of Households between \n";
	print "    $opt_o and $opt_n data sets.\n";
	print "    This script is not currently setup to handle this properly.\n";
	print "\n";
	print "    Exiting without updating...\n\n";
	exit;
    }
}

###################################################
# Process command line options
if(defined $opt_n) { $datadir = $opt_n; }
else { $datadir = shift(@ARGV); }
print "-> Processing all ward data files in $datadir\n";

###################################################
# Parse Ward Data Files
&csv_to_hash("$datadir/Membership.csv",\%membership_data);
&csv_to_hash("$datadir/HomeTeaching.csv",\%hometeaching_data);

if($opt_v) {
    print "-> Membership Data Dump\n\n";
    &print_hash(\%membership_data);
    print "-> HomeTeaching Data Dump\n\n";
    &print_hash(\%hometeaching_data);
}

if($opt_s) { $dbh->disconnect(); exit; }

# Now update the various eq DB tables
&update_eq_elder_table();
&update_eq_aaronic_table();
&update_eq_district_table();
&update_eq_companionship_table();
&update_eq_family_table();
&update_eq_parent_table();
&update_eq_child_table();

###################################################
# Disconnect from the database
$dbh->disconnect();

######################################################################