package RPS::Import::Merlin::v9;

use strict;

use lib '/app/tools/common/lib';
use Common::Date;

use lib '/app/tools/rps/lib';
use RPS::Import::ServiceMap;

use base 'RPS::Import::Importer';

use Data::Dumper;
use Date::Calc qw(Days_in_Month Decode_Month);

sub _headerIdentifier { ( upc => 'EAN UPC' ) }

sub _fieldMap {
    {
        # From header
        dateBegin => 'A2',    # optional

        # Data
        labelName    => 'H',
        serviceID    => 'A',
        countryCode  => 'B',
        formatType   => 'O',
        artistName   => 'E',
        upc          => 'D',
        albumName    => 'G',
        isrc         => 'C',
        trackName    => 'F',
        units        => 'J',
        currencyCode => 'M',
        price        => 'L',
        mediaType    => 'N',
    };
}

sub _unverifiedFieldMap {
    {
        # Footer
        distFee => 'M',
    };
}

# saleDates - return the start/end date information for the file.
# This info will come from the header (if present) _or_ from the
# filename itself if no header is provided.
#
sub saleDates {
    my $self = shift;

    return ( $self->{_startDate}, $self->{_endDate} ) if ( $self->{_startDate} );

    my $period = $self->_getByFieldName('dateBegin') || '';
    if ( $period =~ /(\d{4})[.\/-](\d{1,2})[.\/-](\d{1,2})/ ) {
        $self->{_startDate} = sprintf( "%04d-%02d-%02d", $1, $2, $3 );
        $self->{_endDate}   = sprintf( "%04d-%02d-%02d", $1, $2, Days_in_Month( $1, $2 ) );
        return $self->{_startDate}, $self->{_endDate};
    }

    $self->fail("Unknown filename") unless ( $self->filename );

    unless ( $self->filename =~ /(\d{4})(\d{2})/ ) {
        $self->fail( "Could not determine period from filename '" . $self->filename . "'" );
    }

    my $startDate = sprintf( "%04d-%02d-%02d", $1, $2, 1 );

    ( $self->{_startDate}, $self->{_endDate} ) = $self->_getDates( date_begin => $startDate );

    return ( $self->{_startDate}, $self->{_endDate} );
}

sub serviceID {
    my $self    = shift;
    my $service = $self->_getByFieldName('serviceID');

    $self->fail("Service name not defined") unless ($service);

    my $serviceID = $self->getServiceID( lc($service) ) || $RPS::Import::ServiceMap::SERVICE_ALIASES{ lc $service };

    $self->fail("Unable to determine service id from '$service'") unless ($serviceID);

    return $serviceID;
}

sub productType {
    my $self = shift;
    return RPS::File::Sale::TYPE_TRACK;
}

sub formatType {
    my $self = shift;
    my $format = $self->_getByFieldName('formatType') || return;

    if (   $format =~ /^(premium|plus|basic|basic-(?:stream|cached|plus-od))$/i
        || $format =~ /^(?:top33-franchise|aotw-franchise)$/i ) {
        return RPS::File::Sale::FORMAT_STREAM;
    }

    $self->fail("Unknown format type '$format'");
}

sub mediaType {
    my $self = shift;
    my $type = $self->_getByFieldName('mediaType') || return;

    if ( lc $type eq 'audio' ) {
        return RPS::DB::Item::MediaType::kMediaTypeAudio;
    }

    $self->fail("Unknown media type '$type'");
}

sub price {
    my $self = shift;

    my $price = $self->_getByFieldName('price');

    # Apply the distribution only if it was found in the footer;
    # Otherwise the user will have to enter it on the UI.
    #
    if ( $self->{_distFee} ) {
        my $distFee = $self->{_distFee};
        $distFee = ( 100 - $distFee ) * .01;
        $price *= $distFee;
    }

    return $price;
}

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

    Log->info("Starting _preProcess");
    $self->SUPER::_preProcess(%args);

    my $distFee;

    my $getDateFlag;    # set if we find a date header

    foreach my $line ( @{ $args{lines} } ) {

        $self->{line} = $line;

        # Get the date from the header if this file has a header
        #
        if ( !$getDateFlag && $self->_getByFieldName('dateBegin') =~ /accounted period/i ) {
            $getDateFlag = 1;
        } elsif ( !$self->{_startDate} && $getDateFlag ) {
            my $dt = $self->_getByFieldName('dateBegin');

            # For dates extracted from the header, we want to report one month before
            # the provided date.
            #
            if ( $dt =~ /^(\d{4})[- ]?(\d{2})/ )    # YYYY MM or YYYY-MM
            {
                my ( $year, $month ) = ( $1, $2 );
                if ( $month == 1 ) {
                    $month = 12;
                    $year -= 1;
                } else {
                    $month--;
                }
                $self->{_startDate} = sprintf( "%04d-%02d-%02d", $year, $month, 1 );
                $self->{_endDate} = sprintf( "%04d-%02d-%02d", $year, $month, Days_in_Month( $year, $month ) );
            } else {
                $self->fail("Unexpected date format found in header");
            }
        }

        # Get the distribution fee from the footer
        #
        $distFee = $self->_getByFieldName('distFee');

        if ( $distFee =~ /LESS Merlin ADMIN FEE \((.+?)%\)/ ) {
            $self->{_distFee} = $1;
            last;
        }
    }
}

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