#=====================================================================
# LedgerSMB
# Small Medium Business Accounting software
# http://www.ledgersmb.org/
#
# Copyright (C) 2006
# This work contains copyrighted information from a number of sources all used
# with permission.
#
# This file contains source code included with or based on SQL-Ledger which
# is Copyright Dieter Simader and DWS Systems Inc. 2000-2005 and licensed
# under the GNU General Public License version 2 or, at your option, any later
# version.  For a full list including contact information of contributors,
# maintainers, and copyright holders, see the CONTRIBUTORS file.
#
# Original Copyright Notice from SQL-Ledger 2.6.17 (before the fork):
# Copyright (C) 2001
#
#  Author: DWS Systems Inc.
#     Web: http://www.sql-ledger.org
#
#  Contributors:
#
#======================================================================
#
# This file has undergone  whitespace cleanup
#
#======================================================================
#
# Price Matrix module
#
#
#======================================================================

package PriceMatrix;

sub price_matrix_query {
    my ( $dbh, $form ) = @_;

    my $query;
    my $sth;

    my @queryargs;

    if ( $form->{customer_id} ) {
        my $defaultcurrency = $form->{dbh}->quote( $form->{defaultcurrency} );
        my $customer_id     = $form->{dbh}->quote( $form->{customer_id} );
        $query = qq|
			SELECT p.id AS parts_id, 0 AS customer_id, 
				0 AS pricegroup_id, 0 AS pricebreak, 
				p.sellprice, NULL AS validfrom, NULL AS validto,
				(SELECT substr(value,1,3) FROM defaults WHERE 
					setting_key = 'curr') AS curr,
			        '' AS pricegroup
	     		FROM parts p
			WHERE p.id = ?

			UNION

    			SELECT p.parts_id, p.customer_id, p.pricegroup_id, 
				p.pricebreak, p.sellprice, p.validfrom,
				p.validto, p.curr, g.pricegroup
			FROM partscustomer p
			LEFT JOIN pricegroup g ON (g.id = p.pricegroup_id)
			WHERE p.parts_id = ?
			AND p.customer_id = $customer_id

			UNION

    			SELECT p.parts_id, p.customer_id, p.pricegroup_id, 
				p.pricebreak, p.sellprice, p.validfrom,
				p.validto, p.curr, g.pricegroup
			FROM partscustomer p
			LEFT JOIN pricegroup g ON (g.id = p.pricegroup_id)
			JOIN customer c ON (c.pricegroup_id = g.id)
			WHERE p.parts_id = ?
			AND c.id = $customer_id

			UNION

    			SELECT p.parts_id, p.customer_id, p.pricegroup_id, 
				p.pricebreak, p.sellprice, p.validfrom,
				p.validto, p.curr, g.pricegroup
			FROM partscustomer p
			LEFT JOIN pricegroup g ON (g.id = p.pricegroup_id)
			WHERE p.customer_id = 0
			AND p.pricegroup_id = 0
			AND p.parts_id = ?

			ORDER BY customer_id DESC, pricegroup_id DESC, 
				pricebreak
			|;
        $sth = $dbh->prepare($query) || $form->dberror($query);
    }
    elsif ( $form->{vendor_id} ) {
        my $vendor_id = $form->{dbh}->quote( $form->{vendor_id} );

        # price matrix and vendor's partnumber
        $query = qq|
			SELECT partnumber
			FROM partsvendor
			WHERE parts_id = ?
			AND vendor_id = $vendor_id|;
        $sth = $dbh->prepare($query) || $form->dberror($query);
    }

    $sth;
}

sub price_matrix {
    my ( $pmh, $ref, $transdate, $decimalplaces, $form, $myconfig ) = @_;
    $ref->{pricematrix} = "";
    my $customerprice;
    my $pricegroupprice;
    my $sellprice;
    my $mref;
    my %p = ();

    # depends if this is a customer or vendor
    if ( $form->{customer_id} ) {
        $pmh->execute( $ref->{id}, $ref->{id}, $ref->{id}, $ref->{id} );

        while ( $mref = $pmh->fetchrow_hashref(NAME_lc) ) {

            $form->db_parse_numeric(sth=>$sth, hashref=>$mref);
            # check date
            if ( $mref->{validfrom} ) {
                next
                  if $transdate <
                  $form->datetonum( $myconfig, $mref->{validfrom} );
            }
            if ( $mref->{validto} ) {
                next
                  if $transdate >
                  $form->datetonum( $myconfig, $mref->{validto} );
            }

            # convert price
            $sellprice =
              $form->round_amount(
                $mref->{sellprice} * $form->{ $mref->{curr} },
                $decimalplaces );

            if ( $mref->{customer_id} ) {
                $ref->{sellprice} = $sellprice
                  if !$mref->{pricebreak};
                $p{ $mref->{pricebreak} } = $sellprice;
                $customerprice = 1;
            }

            if ( $mref->{pricegroup_id} ) {
                if ( !$customerprice ) {
                    $ref->{sellprice} = $sellprice
                      if !$mref->{pricebreak};
                    $p{ $mref->{pricebreak} } = $sellprice;
                }
                $pricegroupprice = 1;
            }

            if ( !$customerprice && !$pricegroupprice ) {
                $p{ $mref->{pricebreak} } = $sellprice;
            }

        }
        $pmh->finish;

        if (%p) {
            if ( $ref->{sellprice} ) {
                $p{0} = $ref->{sellprice};
            }
            for ( sort { $a <=> $b } keys %p ) {
                $ref->{pricematrix} .= "${_}:$p{$_} ";
            }
        }
        else {
            if ($init) {
                $ref->{sellprice} =
                  $form->round_amount( $ref->{sellprice}, $decimalplaces );
            }
            else {
                $ref->{sellprice} =
                  $form->round_amount(
                    $ref->{sellprice} * ( 1 - $form->{tradediscount} ),
                    $decimalplaces );
            }
            $ref->{pricematrix} = "0:$ref->{sellprice} "
              if $ref->{sellprice};
        }
        chop $ref->{pricematrix};

    }

    if ( $form->{vendor_id} ) {
        $pmh->execute( $ref->{id} );

        $mref = $pmh->fetchrow_hashref(NAME_lc);
        $form->db_parse_numeric(sth=>$sth, hashref=>$mref);

        if ( $mref->{partnumber} ne "" ) {
            $ref->{partnumber} = $mref->{partnumber};
        }

        if ( $mref->{lastcost} ) {

            # do a conversion
            $ref->{sellprice} =
              $form->round_amount( $mref->{lastcost} * $form->{ $mref->{curr} },
                $decimalplaces );
        }
        $pmh->finish;

        $ref->{sellprice} *= 1;

        # add 0:price to matrix
        $ref->{pricematrix} = "0:$ref->{sellprice}";

    }

}
1;