#!/usr/bin/env perl -wT
# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Bug Tracking System.
#
# The Initial Developer of the Original Code is Netscape Communications
# Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s): Terry Weissman <terry@mozilla.org>

use strict;

use lib qw(. lib);

use Bugzilla;
use Bugzilla::Constants;
use Bugzilla::Error;
use Bugzilla::User;
use Bugzilla::Keyword;
use Bugzilla::Bug;

my $cgi = Bugzilla->cgi;
my $template = Bugzilla->template;
my $vars = {};

my $user = Bugzilla->login();

# Editable, 'single' HTML bugs are treated slightly specially in a few places
my $single = !$cgi->param('format')
  && (!$cgi->param('ctype') || $cgi->param('ctype') eq 'html');

# If we don't have an ID, _AND_ we're only doing a single bug, then prompt
if (!$cgi->param('id') && $single) {
    print Bugzilla->cgi->header();
    $template->process("bug/choose.html.tmpl", $vars) ||
      ThrowTemplateError($template->error());
    exit;
}

my $format = $template->get_format("bug/show", scalar $cgi->param('format'), 
                                   scalar $cgi->param('ctype'));

my @bugs = ();
my %marks;

if ($single) {
    my $id = $cgi->param('id');
    # Its a bit silly to do the validation twice - that functionality should
    # probably move into Bug.pm at some point
    ValidateBugID($id);
    push @bugs, new Bugzilla::Bug($id);
    if (defined $cgi->param('mark')) {
        foreach my $range (split ',', $cgi->param('mark')) {
            if ($range =~ /^(\d+)-(\d+)$/) {
               foreach my $i ($1..$2) {
                   $marks{$i} = 1;
               }
            } elsif ($range =~ /^(\d+)$/) {
               $marks{$1} = 1;
            }
        }
    }
} else {
    foreach my $id ($cgi->param('id')) {
        # Be kind enough and accept URLs of the form: id=1,2,3.
        my @ids = split(/,/, $id);
        foreach (@ids) {
            my $bug = new Bugzilla::Bug($_);
            # This is basically a backwards-compatibility hack from when
            # Bugzilla::Bug->new used to set 'NotPermitted' if you couldn't
            # see the bug.
            if (!$bug->{error} && !$user->can_see_bug($bug->bug_id)) {
                $bug->{error} = 'NotPermitted';
            }
            push(@bugs, $bug);
        }
    }
}

# Determine if Patch Viewer is installed, for Diff link
eval {
  require PatchReader;
  $vars->{'patchviewerinstalled'} = 1;
};

$vars->{'bugs'} = \@bugs;
$vars->{'marks'} = \%marks;
$vars->{'use_keywords'} = 1 if Bugzilla::Keyword::keyword_count();

my @bugids = map {$_->bug_id} grep {!$_->error} @bugs;
$vars->{'bugids'} = join(", ", @bugids);

# Next bug in list (if there is one)
my @bug_list;
if ($cgi->cookie("BUGLIST")) {
    @bug_list = split(/:/, $cgi->cookie("BUGLIST"));
}

$vars->{'bug_list'} = \@bug_list;

# Work out which fields we are displaying (currently XML only.)
# If no explicit list is defined, we show all fields. We then exclude any
# on the exclusion list. This is so you can say e.g. "Everything except 
# attachments" without listing almost all the fields.
my @fieldlist = (Bugzilla::Bug->fields, 'group', 'long_desc', 
                 'attachment', 'attachmentdata', 'token');
my %displayfields;

if ($cgi->param("field")) {
    @fieldlist = $cgi->param("field");
}

unless (Bugzilla->user->in_group(Bugzilla->params->{"timetrackinggroup"})) {
    @fieldlist = grep($_ !~ /(^deadline|_time)$/, @fieldlist);
}

foreach (@fieldlist) {
    $displayfields{$_} = 1;
}

foreach ($cgi->param("excludefield")) {
    $displayfields{$_} = undef;    
}

$vars->{'displayfields'} = \%displayfields;

print $cgi->header($format->{'ctype'});

$template->process("$format->{'template'}", $vars)
  || ThrowTemplateError($template->error());