#!/usr/bin/perl

use strict;
use warnings;
binmode STDOUT, ":utf8";

use FindBin;
use lib ("$FindBin::Bin/../lib", "$FindBin::Bin/../extlib");

use LWP::UserAgent::Local;
use HTTP::Request;
use Data::Dumper;
use Getopt::Long;
use Web::Scraper;
use MT;

### Parses options.
my @blog_ids;
my @types;
my $username    = '';
my $password    = '';
my $script_path = '/mt/';
my $hostname    = 'localhost';
my $silent      = 0;
my $usage       = 0;
my $elapse      = 0;
GetOptions(
    'blog_id=s'  => \@blog_ids,
    'type=s'     => \@types,
    'user=s'     => \$username,
    'pass=s'     => \$password,
    'path=s'     => \$script_path,
    'host=s'     => \$hostname,
    'elapse'     => \$elapse,
    'silent'     => \$silent,
    'uaage'      => \$usage,
);

if ($usage || !$username || !$password) {
    use Pod::Usage;
    pod2usage(1);
    exit;
}

if ($elapse) {
    use Time::HiRes;
}

### Creates MT object.
my $mt = MT->new() or die MT->errstr;

### Loads blogs
if (!@blog_ids) {
    push @blog_ids, '1';
}

my @blogs = MT::Blog->load( { id => \@blog_ids } )
    or die "Couldn't load blogs. [" . Dumper(@blog_ids) . "]\n";

# Creates scraper object
my $scraper = scraper {
    process "div.msg-publishing", status_publishing => 'TEXT';
    process "div.msg-error",      status_error      => 'TEXT';
    process "div.msg-success",    status_success    => 'TEXT';

    result 'status_publishing', 'status_error', 'status_success';
};

### Creates UserAgent
my $ua = new LWP::UserAgent::Local( { ScriptAlias => $script_path } );

### Runs build script.
foreach my $blog (@blogs) {
    logging( "rebuilding (" . $blog->name . " ...\n" );
    run_rebuild($blog);
}

sub run_rebuild {
    my $blog = shift;

    my @at;
    if ( !@types ) {
        @at = split( ',', $blog->archive_type );
        push @at, 'index';
    }
    else {
        @at = @types;
    }

    foreach (@at) {
        my $at       = $_;
        my $archiver = $mt->publisher->archiver($at);
        next if ( !$archiver ) && ( $at ne 'index' );

        my $start = Time::HiRes::time() if $elapse;
        my $total = 0;
        if ($archiver) {
            if ( ( $archiver->entry_based || $archiver->date_based ) )
            {
                my $entry_class = $archiver->entry_class || 'entry';
                require MT::Entry;
                my $terms = {
                    class   => $entry_class,
                    status  => MT::Entry::RELEASE(),
                    blog_id => $blog->id,
                };
                $total = MT::Entry->count($terms);
            }
            elsif ( $archiver->category_based ) {
                require MT::Category;
                my $terms = {
                    blog_id => $blog->id,
                    class   => $archiver->category_class,
                };
                $total = MT::Category->count($terms);
            }
            elsif ( $archiver->author_based ) {
                require MT::Author;
                require MT::Entry;
                my $terms = {
                    blog_id => $blog->id,
                    status  => MT::Entry::RELEASE(),
                    class   => 'entry',
                };
                $total = MT::Author->count(
                    undef,
                    {
                        join => MT::Entry->join_on(
                            'author_id', $terms, { unique => 1 }
                        ),
                        unique => 1,
                    }
                );
            }
        }

        my $url =
            "http://$hostname$script_path"
          . $mt->config->AdminScript
          . "?__mode=rebuild"
          . "&blog_id="
          . $blog->id
          . "&next=0"
          . "&offset=0"
          . "&limit=20"
          . "&entry_id="
          . "&is_new="
          . "&old_status="
          . "&old_previous="
          . "&old_next="
          . "&total="
          . $total
          . "&type="
          . $at;
        do {
            $url .= "&username=" . $username;
            $url .= "&password=" . $password;
            my $req = new HTTP::Request( GET => $url );
            my $resp = $ua->request($req);
            if ( $resp->is_success ) {
                my $res = $scraper->scrape( $resp->content() );
                if ( $res->{status_publishing} ) {
                    ( undef, $url ) =
                      $resp->content() =~ /window.location='(.*)\?(.*)'/;
                    $url = "http://$hostname/$script_path/" . $mt->AdminScript . "?" . $url;
                }
                elsif ( $res->{status_success} ) {
                    logging( "\t" . $at . " built success." . "\n" );
                    $url = undef;
                }
                elsif ( $res->{status_error} ) {
                    logging("\t"
                          . $at
                          . " built failed. "
                          . $res->{status_error}
                          . "\n" );
                    $url = undef;
                }
                else {
                    logging("\t"
                          . $at
                          . " built failed.\n"
                          . $resp->content()
                          . "\n" );
                    $url = undef;
                }
            }
            else {
                logging(
                    "\t" . $at . " request failed (" . $resp->code . ")\n" );
                $url = undef;
            }
        } while ($url);

        logging( "\t  total build time:" . ( Time::HiRes::time() - $start ) . "\n" )
            if $elapse;
    }
}

sub logging {
    my ($msg) = @_;
    print $msg if !$silent;
}

1;

__END__

=head1 NAME

rebuild_pages

=head1 SYNOPSIS

    rebuild-pages
      require:
        --user             login account of mt
        --pass             login password of mt

      optional:
        --blog_id <id>     target blog id
        --type <type>      target archive type
                             - Category-Monthly
                             - Category
                             - Individual
                             - Page
                             - Monthly
                             - index
                             - or others...
        --path             path to mt.cgi (default:/mt/)
        --host             hostname (default:localhost)
        --elapse           logging build elapsed time if you want (1|0)
        --silent           no output any logs (1|0)
        --usage            show this message

    This script requires following perl modules.
        Web::Scraper           You must install from CPAN if you not installed yet.
        LWP::UserAgent::Local  You must install from sixapart repository if you not installed yet.
                               https://github.com/movabletype/movabletype/blob/master/t/lib/LWP/UserAgent/Local.pm