package RPS::Import::ProperUK;

use strict;

use Date::Calc qw(Days_in_Month Decode_Month);

use lib '/app/tools/common/lib';
use Common::Util;

use lib '/app/tools/data_classes/lib';

use lib '/app/tools/rps/lib';
use RPS::File::Sale;
use RPS::Import::Importer;
use base 'RPS::Import::Importer';

use constant FIELD_PERIOD   => 0;
use constant FIELD_UPC      => 5;
use constant FIELD_FORMAT   => 6;
use constant FIELD_ARTIST   => 7;
use constant FIELD_ALBUM    => 8;
use constant FIELD_SALES    => 14;
use constant FIELD_RETURNS  => 15;
use constant FIELD_PRICE    => 19;
use constant FIELD_TOTAL    => 20;
use constant FIELD_CURRENCY => 21;

#public methods

sub physical     { 1 }

sub _importLines
{
	my $self = shift;
	my %args = @_;

	my $retval = undef;
    my $lines = $args{lines};

    my $linenum = 1;
    foreach my $line(@$lines)
    {
        my $prodtype    = uc $line->[FIELD_FORMAT];
        my $config      = $line->[FIELD_FORMAT];
        my $price_level = RPS::File::Sale::PLEVEL_FULL;
        my $channel     = RPS::File::Sale::CHANNEL_RETAIL;
        my $upc         = Common::Util::normalize_upc($line->[FIELD_UPC]);
        my $artist      = $line->[FIELD_ARTIST];
        my $album       = $line->[FIELD_ALBUM];
        my $currency    = uc $line->[FIELD_CURRENCY];

        $prodtype =
            $prodtype =~ /^CD/ ? RPS::File::Sale::TYPE_CD :
            $prodtype eq 'DVD' ? RPS::File::Sale::TYPE_DVD :
            $prodtype eq 'LP' ? RPS::File::Sale::TYPE_LP :
            undef;

        $currency = $currency eq 'POUNDS STERLING' ? $currency = 'GBP' : undef;

        my ($dateBegin, $dateEnd) = $self->_getDates($line->[FIELD_PERIOD]);

        my ($sales)	   	= $line->[FIELD_SALES] =~ m/^(-?\d+)$/;
        my ($returns) 	= $line->[FIELD_RETURNS] =~ m/^(-?\d+)$/;
        my ($price)    	= $line->[FIELD_PRICE] =~ m/^(\d*\.?\d*)$/;
        my ($total)    	= $line->[FIELD_TOTAL] =~ m/^(-?\d*\.?\d*)$/;

        $returns = abs($returns);
        my $sales_price   = $sales * $price;
        my $returns_price = $returns * $price;

        if ($prodtype && ($sales || $returns) && $upc)
        {
            unless (defined $dateBegin && defined $dateEnd) {
            $self->errstr("Couldn't get dates from ".$line->[FIELD_PERIOD]."on line number $linenum");
            return undef;
            }
            my $sale = RPS::Import::SaleRec->new();

            $sale->wholesalePrice($price);
            $sale->productType($prodtype);
            $sale->dateBegin($dateBegin);
            $sale->dateEnd($dateEnd);
            $sale->upc($upc);
            $sale->artistName($artist);
            $sale->albumName($album);
            $sale->sales($sales);
            $sale->returns($returns);
            $sale->salesRevenue($sales_price);
            $sale->returnsRevenue($returns_price);
            $sale->totalRevenue($total);
            $sale->priceLevel($price_level);
            $sale->channel($channel);
            $sale->configuration($config);
            $sale->countryCode('GB');
            $sale->currencyCode($currency);
            $sale->lineNum($linenum);

            ##$args{dumper}($sale);  ## for cmd-line testing
            $self->_insertSale(sale => $sale);
        }

        $linenum++;
    }
	return $linenum;
}

#
# Private methods
#


sub _getDates
{
	my $self = shift;
	my $date = shift;

    my ($dateBegin, $dateEnd);

    if ($date =~ m/^(\w+) (\d{4})$/) {

        my $month = Decode_Month($1);
        my $year  = $2;

        $dateBegin = sprintf("%04d-%02d-%02d", $year, $month, 1);
        $dateEnd   = sprintf("%04d-%02d-%02d", $year, $month, Days_in_Month($year, $month));

    }
    elsif($date =~ m/^(\w+)(\d{4})$/){
        my $month = Decode_Month($1);
        my $year  = $2;

        $dateBegin = sprintf("%04d-%02d-%02d", $year, $month, 1);
        $dateEnd   = sprintf("%04d-%02d-%02d", $year, $month, Days_in_Month($year, $month));
    }
     else {
        return undef;
    }

	return ($dateBegin, $dateEnd);
}

###
1;# Play nicely.
###