package RPS::Import::EUK;

use strict;

use Date::Calc qw(Days_in_Month Add_Delta_Days);

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

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

# map version num to the field order
my %fieldMap = (
    1 => {
        'date_begin' => 3,
        'date_end'   => 4,
        'isrc'       => 12,
        'artist'     => 13,
        'title'      => 14,
        'units'      => 15,
        'price'      => 18,
        'currency'   => 19,
        'country'    => 22,
    },
    2 => {
        'date_begin' => 3,
        'date_end'   => 4,
        'isrc'       => 8,
        'artist'     => 9,
        'title'      => 10,
        'units'      => 11,
        'price'      => 14,
        'currency'   => 15,
        'country'    => 18,
    },
    3 => {
        'date_begin' => 3,
        'date_end'   => 4,
        'isrc'       => 8,
        'artist'     => 9,
        'title'      => 10,
        'units'      => 11,
        'price'      => 14,
        'currency'   => 15,
        'country'    => 18,
    },
    4 => {
        'date_begin' => 2,
        'date_end'   => 3,
        'isrc'       => 11,
        'artist'     => 12,
        'title'      => 13,
        'label'      => 14,
        'tracks'     => 16,
        'units'      => 17,
        'price'      => 18,
        'currency'   => 22,
        'country'    => 25,
    },
    5 => {
        'date_begin' => 2,
        'date_end'   => 3,
        'isrc'       => 12,
        'artist'     => 13,
        'title'      => 14,
        'label'      => 15,
        'tracks'     => 17,
        'units'      => 18,
        'price'      => 22,
        'currency'   => 23,
        'country'    => 26,
    },
    6 => {
        'date_begin' => 2,
        'date_end'   => 3,
        'isrc'       => 12,
        'artist'     => 13,
        'title'      => 14,
        'label'      => 15,
        'tracks'     => 17,
        'units'      => 18,
        'price'      => 22,
        'currency'   => 23,
        'country'    => 25,
    },
);

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

    return undef unless ( defined $lines && defined $version );

    my $offsets = $fieldMap{$version};

    shift @$lines;    ## skip header
    my $linenum = 2;
    foreach my $line (@$lines) {

        my $artist   = $line->[ $offsets->{artist} ];
        my $prodcode = $line->[ $offsets->{isrc} ];
        my $title    = $line->[ $offsets->{title} ];
        my $country  = $line->[ $offsets->{country} ];
        my $currency = $line->[ $offsets->{currency} ];

        my $label = $line->[ $offsets->{label} ] if ( $version == 4 );

        next if ( $country =~ m/^$/ );    # blank lines at eof

        if ( $country !~ m/^[A-Z][A-Z]$/ ) {
            $self->errstr("invalid country code: $country");
            return undef;
        }
        if ( $currency !~ m/^[A-Z][A-Z][A-Z]$/ ) {
            $self->errstr("invalid currency code: $currency");
            return undef;
        }

        ## just use the end date... begin dates are sometimes funky; it's always 1 month
        my ( $dateBegin, $dateEnd ) = $self->_getDates( $line->[ $offsets->{date_end} ] );
        unless ( defined $dateBegin && defined $dateEnd ) {
            $self->errstr( "couldn't get dates from " . $line->[ $offsets->{date_end} ] );
            return undef;
        }

        my $format = RPS::File::Sale::FORMAT_DOWNLOAD;
        my $prodtype;
        if ( $prodcode =~ m/^D_/ || ( $line->[ $offsets->{tracks} ] > 1 && $version >= 4 ) ) {
            $prodtype = RPS::File::Sale::TYPE_ALBUM;
        } else {
            $prodtype = RPS::File::Sale::TYPE_TRACK;
        }

        my ($units) = $line->[ $offsets->{units} ] =~ m/^(-?\d+)$/;
        my ($price) = $line->[ $offsets->{price} ] =~ m/^(\d*\.?\d*)$/;

        if ( $version == 4 ) {
            $price = ( $units != 0 ) ? ( $price / $units ) : 0;
        }

        if ( $units && $price && $title && $country ) {
            my $sale = RPS::Import::SaleRec->new();

            $sale->productType($prodtype);
            $sale->dateBegin($dateBegin);
            $sale->dateEnd($dateEnd);
            $sale->upc($prodcode)  if ( $prodtype eq RPS::File::Sale::TYPE_ALBUM );
            $sale->isrc($prodcode) if ( $prodtype eq RPS::File::Sale::TYPE_TRACK );
            $sale->artistName($artist);
            $sale->albumName($title) if ( $prodtype eq RPS::File::Sale::TYPE_ALBUM );
            $sale->trackName($title) if ( $prodtype eq RPS::File::Sale::TYPE_TRACK );
            $sale->labelName($label) if ( $version >= 4 );
            $sale->formatType($format);
            $sale->units($units);
            $sale->price($price);
            $sale->countryCode($country);
            $sale->currencyCode($currency);
            $sale->lineNum($linenum);

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

        #else { print STDERR "$linenum: u: $units , p: $price , t: $title , c: $country\n"; }
        $linenum++;
    }

    return $linenum;
}

#
# Private methods
#

sub _getDates {
    my $self = shift;
    my $date = shift;    # end date of period

    my ( $dateBegin, $dateEnd );
    if ( $date =~ m/^(\d{4})-(\d\d)-(\d\d)$/ ) {
        $dateBegin = sprintf( "%04d-%02d-%02d", $1, $2, 1 );
        $dateEnd = sprintf( "%04d-%02d-%02d", $1, $2, Days_in_Month( $1, $2 ) );
        return ( $dateBegin, $dateEnd );
    } elsif ( $date =~ m/^(\d\d)(\d\d?)(\d{4})$/ ) {
        $dateBegin = sprintf( "%04d-%02d-%02d", $3, $2, 1 );
        $dateEnd = sprintf( "%04d-%02d-%02d", $3, $2, Days_in_Month( $3, $2 ) );
        return ( $dateBegin, $dateEnd );
    } elsif ( $date =~ m/^(\d\d?)\/(\d\d?)\/(\d{4})$/ ) {
        my $day   = $1;
        my $month = $2;
        my $year  = $3;
        if ( $day < 7 ) {
            if ( $month == 1 ) {
                $year -= 1;
                $month = 12;
            } else {
                $month -= 1;
            }
        }
        $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.
###