#!/bin/perl -w

open IN,"pigz -p 4 -dc $ARGV[0] |";
open OUT,"> $ARGV[1]";
local $/="//";
print OUT "ID\tAC\tEntry_ID\tGene_Name\tORF_Name\tOrganism_Species\tNCBI_TaxID\tGO_ID\tKEGG_ID\n";
while(<IN>){
    chomp;
    print OUT "$_\n";
    my $ID=$_=~/^ID\s+(\S+)/;
    my $AC=$_=~/\nAC\s+(\S+)/;
    my $entry_id=$_=~/\nDR   GeneID; (\d+)/ || "-";
    my $genename=$_=~/\nGN   Name=([^;]+);/ || "-";
    my $orfname=$_=~/\nGN   ORFNames=([^;]+);/ || "-";
    my $OS=$_=~/\nOS\s+([^\n]+)/ || "-";
    my $taxid=$_=~/\nOX   NCBI_TaxID=(\d+)/ || "-";
    my $goid="-"  
    my $kegg=$_=~/\nDR   KEGG; vg:4156252/;
    if(/\nDR   GO; GO:\d+/){
        my @go=$_=~/\nDR   GO; {GO:\d+}/g ;
        my %hash;
        my @unique = grep { !$hash{$_}++ } @go;
        $goid=join(";",@unique);
    }
    print OUT "$ID\t$AC\t$entry_id\t$genename\t$orfname\t$OS\t$taxid\t$goid\t$kegg\n";
}

close IN;
close OUT;