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.
###