package RPS::Import::Shellshock;

use strict;


use Date::Calc qw(Days_in_Month Decode_Month);

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

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_CATNO    => 0;
use constant FIELD_SALES    => 1;
use constant FIELD_PRICE    => 4;

#public methods

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

    my $lines = $args{lines};
    my $fileObj = $args{file};
    my $version = $args{file}->VersionNum();
    my $fileName = $args{file}->OrigFileName();

    my ($dateBegin,$dateEnd);
    
    my $linenum = 1;

    ($dateBegin,$dateEnd) = $self->_getDates($fileName) if ($fileName =~ /(\d{4})/);

    foreach my $line(@$lines)
    {
        my $prodtype    = RPS::File::Sale::TYPE_CD;
        my $price_level = RPS::File::Sale::PLEVEL_FULL;
        my $channel     = RPS::File::Sale::CHANNEL_RETAIL;
        my $catno       = $line->[FIELD_CATNO];

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

        if ($catno =~ m/^[A-Z][a-z][a-z]\. \d\d$/ && !$sales && !$price) {
            ($dateBegin, $dateEnd) = $self->_getDates($catno);
            unless ($dateBegin && $dateEnd) {
                $self->errstr("couldn't get dates from $catno");
                return undef;
            }
            $linenum++;
            next;
        }

        if ($catno && $sales && $price && $catno !~ /total/i && $line->[3] ne "")
        {
            unless ($dateBegin && $dateEnd) {
                $self->errstr("couldn't get dates");
                return undef;
            }
            my $sale = RPS::Import::SaleRec->new();
 
            $sale->productType($prodtype);
            $sale->dateBegin($dateBegin);
            $sale->dateEnd($dateEnd);
            $sale->clientProductID($catno);
            $sale->sales($sales);
            $sale->salesRevenue($price);
            $sale->totalRevenue($price);
            $sale->priceLevel($price_level);
            $sale->channel($channel);
            $sale->countryCode('GB');
            $sale->lineNum($linenum);
    
            ##$args{dumper}($sale);  ## for cmd-line testing
            $self->_insertSale(sale => $sale);
        }
        $linenum++;
    }
	return $linenum;
}

#
# Private methods
#


sub _getDates
{
	my $self = shift;
	my $date = shift;
    my ($month,$year,$qtr,$dateBegin,$dateEnd);
    if($date =~ m/ (\d)Q (\d{4})/) {
        $qtr    = $1;
        $year   = $2;
        if ($qtr == 1) {
            $dateBegin = $year."-01-01";
            $dateEnd   = $year."-03-".Days_in_Month($year, 3);
        } elsif ($qtr == 2) {
            $dateBegin = $year."-04-01";
            $dateEnd   = $year."-06-".Days_in_Month($year, 6);
        } elsif ($qtr == 3) {
            $dateBegin = $year."-07-01";
            $dateEnd   = $year."-09-".Days_in_Month($year, 9);
        } elsif ($qtr == 4) {
            $dateBegin = $year."-10-01";
            $dateEnd   = $year."-12-".Days_in_Month($year, 12);
        } else {
            return undef;
        }
        return ($dateBegin,$dateEnd);
    }
    elsif($date =~ m/ (\d)H (\d{4})/) {
        $qtr    = $1;
        $year   = $2;
        if ($qtr == 1) {
            $dateBegin = $year."-01-01";
            $dateEnd   = $year."-06-".Days_in_Month($year, 6);
        } elsif ($qtr == 2) {
            $dateBegin = $year."-07-01";
            $dateEnd   = $year."-12-".Days_in_Month($year, 12);
        } else {
            return undef;
        }
        return ($dateBegin,$dateEnd);
    }
    elsif ($date =~ m/^([A-Z][a-z][a-z])\. (\d\d)$/) {
        $month = Decode_Month($1);
        $year = $2 + 2000;
        $dateBegin = sprintf("%04d-%02d-%02d", $year, $month, 1);
        $dateEnd = sprintf("%04d-%02d-%02d", $year, $month, Days_in_Month($year,$month));
	    return ($dateBegin, $dateEnd);
    }

	return undef;
}

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