%# BEGIN BPS TAGGED BLOCK {{{
%#
%# COPYRIGHT:
%#
%# This software is Copyright (c) 1996-2014 Best Practical Solutions, LLC
%#                                          <sales@bestpractical.com>
%#
%# (Except where explicitly superseded by other copyright notices)
%#
%#
%# LICENSE:
%#
%# This work is made available to you under the terms of Version 2 of
%# the GNU General Public License. A copy of that license should have
%# been provided with this software, but in any event can be snarfed
%# from www.gnu.org.
%#
%# This work is distributed in the hope that it will be useful, but
%# WITHOUT ANY WARRANTY; without even the implied warranty of
%# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
%# General Public License for more details.
%#
%# You should have received a copy of the GNU General Public License
%# along with this program; if not, write to the Free Software
%# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
%# 02110-1301 or visit their web page on the internet at
%# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
%#
%#
%# CONTRIBUTION SUBMISSION POLICY:
%#
%# (The following paragraph is not intended to limit the rights granted
%# to you to modify and distribute this software under the terms of
%# the GNU General Public License and is only of importance to you if
%# you choose to contribute your changes and enhancements to the
%# community by submitting them to Best Practical Solutions, LLC.)
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%# derivatives to this work, or any other work intended for use with
%# Request Tracker, to Best Practical Solutions, LLC, you confirm that
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%# works based on those contributions, and sublicense and distribute
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%# END BPS TAGGED BLOCK }}}
<& /Elements/ListActions, actions => \@results &>

<form action="<%RT->Config->Get('WebPath')%><% $m->request_comp->path |n %>" method="post">
<input type="hidden" name="id" value="<%$RootObj->Id%>" />

% if (!$Modify) {
<table>
<tr>
<td><&|/l&>Topic Name</&></td>
<td><input type="text" name="Name" size="30" /></td>
</tr>
<tr>
<td><&|/l&>Description</&></td>
<td><input type="text" name="Description" size="50" /></td>
</tr>
</table>
% } else {
<a href="Topics.html">New topic</a>
% }

<& .tree, Element => $tree, Action => $Modify ? "Move" : "Add", Prefix => $Modify ? "Topic-$Modify-Parent" : "Insert", RootObj => $RootObj, Modify => $Modify &>

</form>

<%def .edit>
&nbsp;
<table style="margin-top: -0.75em">
<tr>
    <td>Topic Name:</td>
    <td><input type="text" name="Topic-<%$topic->Id%>-Name" size="20" value="<%$topic->Name%>" /></td>
    <td><input type="submit" name="Update" value="Update"><br /></td>
</tr>
<tr>
    <td>Description:</td>
    <td> <input type="text" name="Topic-<%$topic->Id%>-Description" size="20" value="<%$topic->Description%>" /></td>
    <td><input type="submit" name="Delete-Topic-<%$topic->Id%>" value="Delete" /></td>
</tr>
</table>
<%args>
$topic
</%args>
</%def>

<%def .tree>
% my $topic = $Element->getNodeValue;
% unless ($Element->isRoot) {
%   if ($Modify and $topic->Id == $Modify) {
%     $Action = "";
<& .edit, topic => $topic &>
%   } else {
<a href="<%RT->Config->Get('WebPath')%><% $m->request_comp->path |n %>?id=<%$RootObj->Id%>&Modify=<%$topic->Id%>"
   title="<%$topic->Description%>"><%$topic->Name || loc("(no name)") %></a>
%   }
% }
<ul>
% for my $e (sort {$a->getNodeValue->Name cmp $b->getNodeValue->Name} $Element->getAllChildren) {
<li><& .tree, Element => $e, Action => $Action, Prefix => $Prefix, RootObj => $RootObj, Modify => $Modify &></li>
% }
% if ($Action) {
% unless ($Action eq "Move" and grep {$_->getNodeValue->Id == $Modify} $Element->getAllChildren) {
<li><input type="submit" name="<%$Prefix%>-<%$topic eq "root" ? 0 : $topic->Id%>" value="<% $Action eq 'Move' ? loc('Move here') : loc('Add here') %>" /></li>
% }
% }
</ul>
<%args>
$Element
$Action
$Prefix
$RootObj
$Modify
</%args>
</%def>

<%INIT>

my @results;

for my $k (keys %ARGS) {
    if ($k =~ /^Topic-(\d+)-(Name|Description)/) {
        my $topic = RT::Topic->new($session{'CurrentUser'});
        $topic->Load($1);
        if ($topic->Id) {
            next if $ARGS{$k} eq $topic->$2;
            my $proc = "Set$2";
            my ($val, $msg) = $topic->$proc($ARGS{$k});
            push @results, $msg;
        } else {
            $m->comp("/Elements/Error", Why => loc("Topic not found"));
        }
    } elsif ($k =~ /^Topic-(\d+)-Parent-(\d+)/) {
        my $topic = RT::Topic->new($session{'CurrentUser'});
        $topic->Load($1);
        if ($topic->Id) {
            next if $2 eq $topic->Parent;
            my $old = $topic->Parent;
            my $new = "$2";
            my ($val, $msg) = $topic->setParent($new);
            push @results, $msg;
        } else {
            $m->comp("/Elements/Error", Why => loc("Topic not found"));
        }
    } elsif ($k =~ /^Insert-(\d+)/) {
        my $topic = RT::Topic->new($session{'CurrentUser'});
        my ($id, $msg) = $topic->Create(
                                        Parent => $1,
                                        Name => $ARGS{'Name'},
                                        Description => $ARGS{'Description'},
                                        ObjectType => ref($RootObj),
                                        ObjectId => $RootObj->Id,
                                       );
        push @results, $msg;
    }
}
for my $k (keys %ARGS) {
    next unless $k =~ /^Delete-Topic-(\d+)/;
    my $topic = RT::Topic->new($session{'CurrentUser'});
    $topic->Load($1);
    if ($topic->Id) {
        my ($val, $msg) = $topic->DeleteAll();
        push @results, $msg;
    } else {
        $m->comp("/Elements/Error", Why => loc("Topic not found"));
    }
}

my $topics = RT::Topics->new($session{'CurrentUser'});
$topics->LimitToObject($RootObj);
$topics->OrderByCols({FIELD => 'Parent'}, {FIELD => 'id'});

use Tree::Simple;
my $tree = Tree::Simple->new(Tree::Simple->ROOT);
my %lookup = (0 => $tree);

my @todo;
while (my $topic = $topics->Next) {
    push @todo, $topic;
}

{
    my $changed = 0;
    my @work = @todo;
    @todo = ();
    for my $topic (@work) {
        if (defined $lookup{$topic->Parent}) {
            $lookup{$topic->Id} = Tree::Simple->new($topic, $lookup{$topic->Parent});
            $changed = 1;
        } else {
            push @todo, $topic;
        }
    }
    redo unless $changed == 0;
}

for my $topic (@todo) {
    $topic->setParent(0);
    $lookup{$topic->Id} = Tree::Simple->new($topic, $tree);
    push @results, "Reparented orphan ".$topic->Id." to root";
}

</%INIT>


<%ARGS>
$RootObj => undef
$title => ""
$Modify => ""
</%ARGS>