#!/usr/bin/env perl
# -*- 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>
#                 Bradley Baetz <bbaetz@student.usyd.edu.au>
#                 Frédéric Buclin <LpSolit@gmail.com>

use 5.10.1;
use strict;
use warnings;
use lib qw(. lib local/lib/perl5);

use Bugzilla;
use Bugzilla::Constants;
use Bugzilla::Util;
use Bugzilla::Error;
use Bugzilla::Product;

my $user     = Bugzilla->login();
my $cgi      = Bugzilla->cgi;
my $template = Bugzilla->template;
my $vars     = {};

print $cgi->header();

# This script does nothing but displaying mostly static data.
Bugzilla->switch_to_shadow_db;

my $product_name   = trim($cgi->param('product')   || '');
my $component_mark = trim($cgi->param('component') || '');

my $product = new Bugzilla::Product({'name' => $product_name});

unless ($product && $user->can_access_product($product->name)) {

  # Products which the user is allowed to see.
  my @products = @{$user->get_accessible_products};

  if (scalar(@products) == 0) {
    ThrowUserError("no_products");
  }

  # If there is only one product available but the user entered
  # another product name, we display a list with this single
  # product only, to not confuse the user with components of a
  # product they didn't request.
  elsif (scalar(@products) > 1 || $product_name) {
    $vars->{'classifications'} = [{object => undef, products => \@products}];
    $vars->{'target'} = "describecomponents.cgi";

    # If an invalid product name is given, or the user is not
    # allowed to access that product, a message is displayed
    # with a list of the products the user can choose from.
    if ($product_name) {
      $vars->{'message'} = "product_invalid";

      # Do not use $product->name here, else you could use
      # this way to determine whether the product exists or not.
      $vars->{'product'} = $product_name;
    }

    $template->process("global/choose-product.html.tmpl", $vars)
      || ThrowTemplateError($template->error());
    exit;
  }

  # If there is only one product available and the user didn't specify
  # any product name, we show this product.
  $product = $products[0];
}

######################################################################
# End Data/Security Validation
######################################################################

$vars->{'product'}        = $product;
$vars->{'component_mark'} = $component_mark;

$template->process("reports/components.html.tmpl", $vars)
  || ThrowTemplateError($template->error());
