#!/usr/bin/perl -w
#
# HU.pm
#
# Version 0.3 - Fixed BAMOSZ website scraping and download stocks
# directly from www.BET.hu
# This version based on ZA.pm module
#
# Zoltan Levardy <zoltan at levardy dot org> 2008, 2009
# Kristof Marussy <kris7topher at gmail dot com> 2014

package Finance::Quote::HU;
require 5.005;

use strict;

use LWP::UserAgent;
use HTTP::Request::Common;
use HTML::TableExtract;
use Encode;

our $VERSION = '1.49'; # VERSION

my $BAMOSZ_MAINURL = "http://www.bamosz.hu/";
my $BAMOSZ_URL = $BAMOSZ_MAINURL . "alapoldal?isin=";

my $BSE_MAINURL = "http://www.bet.hu/";
my $BSE_URL = $BSE_MAINURL . "topmenu/kereskedesi_adatok/product_search?isinquery=";

sub methods {
    return ( hufund  => \&bamosz,
             bamosz  => \&bamosz,
             hustock => \&bse,
             bse     => \&bse,
             bet     => \&bse,
             hu      => \&hu,
             hungary => \&hu
    );
}

sub labels {
    my @fundlabels =
        qw/symbol method source name currency isin date isodate price last/;
    my @stocklabels =
        qw/symbol method source currency isin date isodate price open close
           high low p_change last/;
    my @alllabels = ( @stocklabels, "name" );
    return ( hufund  => \@fundlabels,
             bamosz  => \@fundlabels,
             hustock => \@stocklabels,
             bse     => \@stocklabels,
             bet     => \@stocklabels,
             hu      => \@alllabels,
             hungary => \@alllabels
    );
}

sub hu {
    my $quoter  = shift;
    my @symbols = @_;
    my %info;

    for my $symbol (@symbols) {
        my %bse_info = bse( $quoter, $symbol );
        if ( $bse_info{ $symbol, "success" } ) {
            %info = ( %info, %bse_info );
            next;
        }

        my %bamosz_info = bamosz( $quoter, $symbol );
        if ( $bamosz_info{ $symbol, "success" } ) {
            %info = ( %info, %bamosz_info );
            next;
        }

        $info{ $symbol, "success" }  = 0;
        $info{ $symbol, "errormsg" } = "Fetch from bse or bamosz failed";
    }

    return wantarray() ? %info : \%info;
}

sub bse {
    my $quoter  = shift;
    my @symbols = @_;
    my %info;

    my $ua = $quoter->user_agent;

    for my $symbol (@symbols) {
        $info{ $symbol, "method" }  = "bse";
        $info{ $symbol, "source" }  = $BSE_MAINURL;
        $info{ $symbol, "success" } = 0;

        my $url      = $BSE_URL . $symbol;
        my $response = $ua->request( GET $url);
        unless ( $response->is_success ) {
            $info{ $symbol, "errormsg" } = "Request error";
            next;
        }

        my $te =
            HTML::TableExtract->new( attribs => { class => "InsAdat_table" } );
        $te->parse( decode_utf8( $response->content ) );
        unless ( $te->first_table_found ) {
            $info{ $symbol, "errormsg" } = "No InsAdat_table found";
            next;
        }

        my @found;
    TABLE_LOOP: for my $ts ( $te->tables ) {
            for my $row ( $ts->rows ) {
                my @trimmed_row = map { trim($_) } @$row;
                if ( $symbol eq $trimmed_row[1] || $symbol eq $trimmed_row[2] )
                {
                    @found = @trimmed_row;
                    last TABLE_LOOP;
                }
            }
        }
        unless (@found) {
            $info{ $symbol, "errormsg" } = "No ticker or ISIN found";
            next;
        }

        # I don't trade stocks, so I am unsure whether the data
        # extracted here is sensible. Please do improve this if
        # needed!
        $info{ $symbol, "symbol" }   = $found[1];
        $info{ $symbol, "isin" }     = $found[2];
        $info{ $symbol, "price" }    = hu_decimal( $found[3] );
        $info{ $symbol, "open" }     = hu_decimal( $found[8] );
        $info{ $symbol, "close" }    = hu_decimal( $found[9] );
        $info{ $symbol, "currency" } = $found[10];
        $info{ $symbol, "low" }      = hu_decimal( $found[13] );
        $info{ $symbol, "high" }     = hu_decimal( $found[14] );
        $info{ $symbol, "p_change" } = hu_decimal( $found[16] );
        $info{ $symbol, "last" }     = hu_decimal( $found[17] );
        $quoter->store_date( \%info, $symbol, { isodate => $found[18] } );

        $info{ $symbol, "success" } = 1;
    }

    return wantarray() ? %info : \%info;
}

sub bamosz {
    my $quoter  = shift;
    my @symbols = @_;
    my %info;

    my $ua = $quoter->user_agent;

    for my $symbol (@symbols) {
        $info{ $symbol, "method" }  = "bamosz";
        $info{ $symbol, "source" }  = $BAMOSZ_MAINURL;
        $info{ $symbol, "success" } = 0;

        my $url      = $BAMOSZ_URL . $symbol;
        my $response = $ua->request( GET $url);
        unless ( $response->is_success ) {
            $info{ $symbol, "errormsg" } = "Request error";
            next;
        }

        my $te = HTML::TableExtract->new( attribs => { class => "dataTable" } );
        $te->parse( decode_utf8( $response->content ) );
        unless ( $te->first_table_found ) {
            $info{ $symbol, "errormsg" } = "No dataTable found";
            next;
        }

        my $ts = $te->table( 0, 0 );
        $info{ $symbol, "name" } = $ts->cell( 0, 1 );
        my $isin = $ts->cell( 2, 1 );
        $info{ $symbol, "symbol" }   = $isin;
        $info{ $symbol, "isin" }     = $isin;
        $info{ $symbol, "currency" } = $ts->cell( 3, 1 );
        my $price = hu_decimal( $ts->cell( 5, 1 ) );
        $info{ $symbol, "price" } = $price;
        $info{ $symbol, "last" }  = $price;
        my $date = $ts->cell( 6, 1 );
        $quoter->store_date( \%info, $symbol, { isodate => $date } );

        $info{ $symbol, "success" } = 1;
    }

    return wantarray() ? %info : \%info;
}

sub trim {
    my $s = shift;
    if ($s) {
        $s =~ s/^\s+//;
        $s =~ s/\s+$//;
        return $s;
    }
    else {
        return '';
    }
}

sub hu_decimal {
    my $s = shift;
    if ($s) {
        $s =~ s/[^\d,-]//g;
        $s =~ s/,/./;
        return $s;
    }
    else {
        return '';
    }
}

1;

=head1 NAME

Finance::Quote::HU - Obtain Hungarian Securities from www.bet.hu
and www.bamosz.hu

=head1 SYNOPSIS

    use Finance::Quote;
    $q = Finance::Quote->new;
    # Don't know anything about failover yet...

=head1 DESCRIPTION

This module obtains information about Hungarian Securities. Share
fetched from www.bet.hu, while mutual funds retrieved from
www.bamosz.hu. Stocks may be searched by either ticker or ISIN, while
mutual funds may only be search be ISIN.

=head1 LABELS RETURNED

Information available may include the following labels:

method source name symbol currency date last price low high open close
p_change

=head1 SEE ALSO

Budapest Stock Exchange (BET) website - http://www.bet.hu
BAMOSZ website - http://www.bamosz.hu/

Finance::Quote

=cut