package RPS::Import::Napster;

use strict;


use Date::Calc qw(Days_in_Month);

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

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

#private constants
use constant FIELD_RECTYPE		=> 0;

#header record
use constant FIELD_DATEBEGIN	=> 3;
use constant FIELD_DATEEND		=> 4;

my %field_map = (
                 1 => {
                        'prodtype' => 3,
                        'vendorid' => 4,
                        'isrc'     => 5,
                        'upc'      => 6,
                        'artist'   => 7,
                        'track'    => 8,
                        'album'    => 9,
                        'country'  => 12,
                        'units'    => 14,
                        'price'    => 15,
                        },

                 5 => {
                        'vendorid' => 3,
                        'isrc'     => 4,
                        'upc'      => 5,
                        'artist'   => 6,
                        'track'    => 7,
                        'country'  => 10,
                        'units'    => 12,
                        'price'    => 13,
                        },
                );

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

#public methods

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

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

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

    return undef unless ($lines && $version);
    my $offsets = $field_map{$version};

	if ($lines)
	{
		my $dateBegin;
		my $dateEnd;

        if ($version == 5) {
            ## version 5 has no header, must get dates from filename
            $fileName =~ m/([01]\d)(\d\d)/;
            my $year = 2000 + $2;
            my $month = $2;
            $dateBegin = $year."-".$month."-01";
            $dateEnd   = $year."-".$month."-".Days_in_Month($year, $month);

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

		my $linenum = 1;
		foreach my $line(@$lines)
		{
			if ($line->[FIELD_RECTYPE] eq 'H')
			{
				# standard napster date format matches ours, but run through normalize
				# in case somebody decorated it along the way
				$dateBegin = Common::Util::normalize_date($line->[FIELD_DATEBEGIN]) || $line->[FIELD_DATEBEGIN];
				$dateEnd = Common::Util::normalize_date($line->[FIELD_DATEEND]) || $line->[FIELD_DATEEND];
			}
			elsif ($line->[FIELD_RECTYPE] eq 'D')
			{
				my $prodtype;

                if ($version == 5) {
                    $prodtype = RPS::File::Sale::TYPE_TRACK;
                } else {  ## version 1
                    if (lc($line->[$offsets->{'prodtype'}]) eq 'album')
                    {
                        $prodtype = RPS::File::Sale::TYPE_ALBUM;
                    }
                    elsif (lc($line->[$offsets->{'prodtype'}]) eq 'track')
                    {
                        $prodtype = RPS::File::Sale::TYPE_TRACK;
                    }
                }
				my $upc			= Common::Util::normalize_upc($line->[$offsets->{'upc'}]);
				my $isrc		= Common::Util::normalize_isrc($line->[$offsets->{'isrc'}]);
				my $artist		= $line->[$offsets->{'artist'}];
				my $album		= $line->[$offsets->{'album'}] unless ($version == 5);  ## no album in vers. 5
				my $track		= $line->[$offsets->{'track'}];
				my $format		= RPS::File::Sale::FORMAT_DOWNLOAD;
				my $vendorid	= $line->[$offsets->{'vendorid'}];
				my ($units)		= $line->[$offsets->{'units'}] =~ m/^(-?\d+)$/;;
				my ($price)		= $line->[$offsets->{'price'}] =~ m/^(\d*\.?\d*)$/ unless ($version == 5);
				my $countryCode	= $line->[$offsets->{'country'}];
				my $currCode	= "USD";
#				my $currConv	= 1;
				if ($countryCode ne 'US')
				{
					$currCode = $Common::Consts::CURRENCY_CODE{$countryCode};
#					$currConv = 0;
				}

				if ($prodtype && ($price || $version == 5) && ($album || $track))
				{
					my $sale = RPS::Import::SaleRec->new();

					$sale->productType($prodtype);
					$sale->formatType($format);
					$sale->dateBegin($dateBegin);
					$sale->dateEnd($dateEnd);
					$sale->serviceProductID($vendorid);
					$sale->upc($upc);
					$sale->isrc($isrc);
					$sale->artistName($artist);
					$sale->albumName($album);
					$sale->trackName($track);
					$sale->units($units);
					$sale->price($price);
					$sale->currencyCode($currCode);
					$sale->countryCode($countryCode);
					$sale->lineNum($linenum);

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

	return $retval;
}

#
# Private methods
#


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