#!/usr/local/bin/perl -w
   
#
#  Invoke with './statswhore.pl [-u username] [-p password]'
#
#  Alternatively, username and/or password can be embedded into the script, if you don't want
#  command line arguments.
#
#  Displays a users total writeups, total reputation, along with min, max, and average.  Only 
#  works for your own account, since reps are 'proprietary'
#
#  Requires:
#    HTML::TableExtract
#    LWP::Simple
#
#  Copyright 2000(c) J.C.Wren   jcwren@jcwren.com
#  No rights reserved, use as you see fit.  I'd like to know about it, though, just for kicks.
#
#  This module has more code than is actually necessary for the functionality provided.
#  I was originally writing a module for another function, and this came out of it.  The
#  @articles array that is returned from get_article_list() contains an array reference
#  that has the articles name, prefixed by the string 'node_id=xxx:', where 'xxx' is the
#  number the article title refers to, the reputation of the article, and the date the
#  article was written.  I'm sure you can imagine some uses for this...
#

use strict;
use LWP::Simple;
use Getopt::Std;

my $def_username = "";  # Set this to your user name if you don't want to use the -u option
my $def_password = "";  # Set this to your pass word if you don't want to use the -p option
my $pmsite = "http://www.perlmonks.org/index.pl";

{
   my %args = ();

   getopts ('u:p:', \%args);

   my $username = $args{u} || $def_username;
   my $password = $args{p} || $def_password;

   die "No password and/or username.  Program terminated.\n" if (!$username || !$password);

   show_reps ($username, $password);
}

sub show_reps
{
   @_ == 2 or die "Incorrect number of parameters";

   my ($username, $password) = @_;
   my $total = 0;

   my $rarticles = get_article_list ($username, $password);

   die "You have no articles, perhaps?\n" unless ($#$rarticles >= 0);

   $total += @$_[1] for (@$rarticles);
   @$rarticles = sort {@$a[1] <=> @$b[1]} @$rarticles;

   print "\n";
   print sprintf ("              User: %s\n",    $username);
   print sprintf ("    Total articles: %d\n",    $#$rarticles + 1);
   print sprintf ("  Total reputation: %d\n",    $total);
   print sprintf ("    Min reputation: %d\n",    @$rarticles [0]->[1]);
   print sprintf ("    Max reputation: %d\n",    @$rarticles [-1]->[1]);
   print sprintf ("Average reputation: %3.2f\n", $total / ($#$rarticles + 1));
   print "\n";
}

sub get_article_list
{
   @_ == 2 or die "Incorrect number of parameters";

   my ($username, $password) = @_;
   my @articles = ();

   $LWP::Simple::FULL_LWP = 1;

   for (my $i = 0; 1; $i += 50)
   {
      my $url = "$pmsite?user=$username&passwd=$password&op=login&node=perl+monks+user+search&usersearch=$username&orderby=createtime%20desc&count=$i";

      if (my $page = get ($url))
      {
         last if (get_article_page ($page, ['Writeup', 'Rep', 'Create Time'], \@articles, $i % 50) < 50);
      }
      else
      {
         die "Get on $url failed.";
      }
   }

   return (\@articles);
}

sub get_article_page
{
   @_ == 4 or die "Incorrect number of parameters";

   my ($html, $tablecols, $rarticles, $lines) = @_;
   my $rowcnt = 0;

   $html =~ s/bgcolor=>/bgcolor="">/mg;

   my $te = new jcwExtract (headers => $tablecols)->parse ($html);

   die sprintf ("Wrong number of tables (%d) returned! (Probably bad username/password)\n", scalar $te->table_states) if (scalar $te->table_states != 1) ;

   foreach my $ts ($te->table_states) 
   {
      foreach ($ts->rows)
      {
         last if (@$_[2] !~ /\d+-\d+\d+/);
         push @$rarticles, [ @$_ ];
         $rowcnt++;
      }
   }

   return ($rowcnt);
}

BEGIN
{
   #
   #  This is not good code.  It's really evil and the both the author of this package, and the author
   #  of HTML::TableExtract should be severely beaten about the head and shoulders.
   #
   package jcwExtract;
   
   use strict;
   use HTML::TableExtract;
   
   @jcwExtract::ISA = qw(HTML::TableExtract HTML::TableExtract::TableState);
   
   my $node_id = undef;
   
   {
      local $^W = 0;
      #
      #  Override the _add_text mode that if $node_id is defined, we'll insert the node_id
      #  value at the front of the string.
      #
      eval 'sub HTML::TableExtract::TableState::_add_text 
         {
            my ($self, $txt, $skew_column) = @_;
            defined $txt or return;
            my $row = $self->{content}[$#{$self->{content}}];
            $txt = sprintf ("node_id=%d:%s", $node_id, $txt) if defined ($node_id);
            $node_id = undef;
            $row->[$skew_column] .= $txt;
            $txt;
         }';
   }
   
   #
   #  Overridden start method, so we can look for <A HREF=...> tags
   #
   sub start
   {
      my $self = shift;
      my ($tag, $attr, $attrseq, $origtext) = @_;
   
      $self->SUPER::start (@_);
   
      #
      #  If it's a <A HREF=...> tag, and has a node_id, then $1 will contain the node_id.
      #  If we're in a table cell, set $node_id to $1, otherwise undef it.  We don't simply
      #  set $node_id to undef if it's not a <A> tag, because we want to save the last value
      #  if there is a subsequent <B> or <i> or somesuch tag between the <A> and </A> tags.
      #
      if ($tag eq 'a' && defined ($attr->{'href'}) && $attr->{'href'} =~ /\bnode_id=(\d+)/i)
      {
         $node_id = ($self->_current_table_state->{in_cell}) ? $1 : undef;
      }
   }
   
   1;
}