package RPS::Import::WMG::Integra;
use strict;

use Date::Calc qw(Days_in_Month Decode_Month);

use lib '/app/tools/common/lib';
use Common::Util qw(normalize_upc);

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

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

my %media_map = (
    EMD => RPS::File::Sale::FORMAT_DOWNLOAD,
);

my %field_map = (
    1 => {
        media_type => 2,
        title      => 3,
        upc        => 4,
        units      => 7,
        retail     => 11,
        price      => 13,
        price_type => 15,
    },
    2 => {
        media_type => 2,
        title      => 3,
        upc        => 4,
        units      => 7,
        retail     => 11,
        price      => 14,
        price_type => 15,
    },
    3 => {
        media_type => 2,
        title      => 4,
        upc        => 5,
        units      => 8,
        retail     => 12,
        price      => 15,
        price_type => 16,
    },
    4 => {
        media_type => 2,
        title      => 3,
        upc        => 5,
        units      => 8,
        retail     => 12,
        price      => 15,
        price_type => 16,
    },
);

#public methods

sub _importLines
{
    my $self = shift;
    my %args = @_;
    my $version = $self->_version();
    my $sheets = $args{sheets};

    my $fileObj = $args{file};
    my $fileName = $fileObj->OrigFileName;
    # for cmd-line testing
    #my $fileName = $args{OrigFileName};

    my $offsets = $field_map{$version};

    my $prodType = RPS::File::Sale::TYPE_ALBUM;

    my @billTo = RPS::Import::WMG::Util::getWirelessBillto($self->{fileServiceID});
    if ($billTo[0])
    {
        unless (RPS::Import::WMG::Util::getWirelessSellto($self->{fileServiceID}, $billTo[0]))
        {
            $self->warning();
            print STDERR "unknown sellto mapping: $billTo[0]\n";
        }
    }
    else
    {
        $self->warning();
        print STDERR "unknown billto mapping: $self->{fileServiceID}\n";
    }

    my ($dateBegin, $dateEnd) = $self->_getDates($fileName);

    unless ($dateBegin && $dateEnd)
    {
        $self->errstr("couldn't get dates");
        print STDERR "file: $fileName\n";
        return 0;
    }

    my $linenum = 1;
    my $i = 0;
    my %errors = ();

    foreach my $sheet(@$sheets)
    {
        next unless ($sheet->[0][0] =~ /distributor/i  && $sheet->[0][2] =~ /media/i);

        foreach my $line(@$sheet)
        {
            my $title       = $line->[ $offsets->{title} ];
            my $upc         = normalize_upc($line->[ $offsets->{upc} ]);
            my $units       = $self->numeric($line->[ $offsets->{units} ]);
            my $retail      = $self->numeric($line->[ $offsets->{retail} ]);
            my $price       = $self->numeric($line->[ $offsets->{price} ]);
            my $priceType   = $line->[ $offsets->{price_type} ];
            my $mediaType   = uc $line->[ $offsets->{media_type} ];

            if ($title && $units && $price)
            {
                my $formatID = $media_map{$mediaType};
                unless ($formatID || $errors{$mediaType})
                {
                    $self->errstr('unknown format');
                    print STDERR "unknown format mapping: $mediaType\n";
                    $errors{$mediaType} = 1;
                }

                $price /= $units if ($version > 1);
                my $wRate = $price / $retail;

                my $sale = RPS::Import::SaleRec->new();

                $sale->dateBegin($dateBegin);
                $sale->dateEnd($dateEnd);
                $sale->formatType($formatID);
                $sale->lineNum($linenum);
                $sale->price($price); # price is invalid so leave it out (for now)
                $sale->priceType($priceType);
                $sale->productType($prodType);
                $sale->retail($retail);
                $sale->albumName($title);
                $sale->units($units);
                $sale->upc($upc);
                $sale->wholesaleRate($wRate);

                #$args{dumper}($sale); # for cmd-line testing
                $self->_insertSale(sale => $sale);
            }#else { print STDERR "skip t: $title u: $units p: $price\n" }
            $linenum++;
        }
        $i++;
    }
    return $linenum;
}

#
# Private methods
#

sub _getDates
{
    my $self = shift;
    my $fileName = lc $_[0];
        
    my ($year, $month);
    if ($fileName =~ m/\D(\d+)\D(\d+)\D\d+/) # Integra November Word 07-11-30.xls
    {
        ($year, $month) = ($1, $2);
    }
    elsif ($fileName =~ m/integra\W(\w+)\D+(\d\d)\D/i) # WMG INTEGRA Dec '07.XLS
    {
        $year = $2;
        $month = Decode_Month($1);
    }
    return undef unless ($year && $month);

    $year += 2000 unless ($year > 1999);

    return (
        sprintf("%04d-%02d-01", $year, $month),
        sprintf("%04d-%02d-%02d", $year, $month, Days_in_Month($year, $month))
    );
}

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