package RPS::Import::AmazonMinimal;
use strict;

use Date::Calc qw(Days_in_Month);

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

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

my %field_map = (
    3 => {
        date_row    => 0,
        date_col    => 0,
        album       => 1,
        track       => 2,
        product     => 3,
        units       => 4,
        price       => 6,
    },
);

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

    return 0 unless $lines;

    my ($dateBegin, $dateEnd) = _getDates($lines->[$offsets->{date_row}]->[$offsets->{date_col}]);
    unless ($dateBegin && $dateEnd)
    {
        $self->errstr("couldn't get dates");
        print STDERR "can't get dates from: $lines->[$offsets->{date_row}]->[$offsets->{date_col}]\n";
        return undef;
    }

    my $linenum = 1;
    foreach my $line(@$lines)
    {
        my $album   = $line->[$offsets->{album}];
        my $track   = $line->[$offsets->{track}];
        my $price   = $self->numeric($line->[$offsets->{price}]);
        my $units   = $line->[$offsets->{units}];
        my $product = uc($line->[$offsets->{product}]);

        if ($price && $units && ($track or $album))
        {
            unless ($product =~ /^(A|T)$/)
            {
                $self->errstr('Unknown Product Type');
                print STDERR "unknown prod type: $product\n";
                return undef;
            }

            $price /= $units;

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

            $sale->dateBegin($dateBegin);
            $sale->dateEnd($dateEnd);
            $sale->albumName($album);
            $sale->trackName($track) if $track;
            $sale->lineNum($linenum);
            $sale->productType($product);
            $sale->formatType(RPS::File::Sale::FORMAT_DOWNLOAD);
            $sale->units($units);
            $sale->price($price);
            $sale->countryCode('US');

            $self->_insertSale(sale => $sale);
        }
        #else { print STDERR "skip: ($linenum) p: $price u: $units t: $track a: $album\n"; }
        $linenum++;
    }
    return $linenum;
}

#
# Private methods
#


sub _getDates
{
    my $date = shift;
    return undef unless ($date =~ m/(\d+)\D\d+\D(\d{4})\-(\d+)\D\d+\D(\d{4})/);
    my ($m1, $y1, $m2, $y2) = ($1, $2, $3, $4);

    return (
        sprintf("%04d-%02d-01", $y1, $m1),
        sprintf("%04d-%02d-%02d", $y2, $m2, Days_in_Month($y2, $m2))
    );
}

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