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/**
* Copyright 2014 Red Hat, Inc.
*
* This software is licensed to you under the GNU General Public
* License as published by the Free Software Foundation; either version
* 2 of the License (GPLv2) or (at your option) any later version.
* There is NO WARRANTY for this software, express or implied,
* including the implied warranties of MERCHANTABILITY,
* NON-INFRINGEMENT, or FITNESS FOR A PARTICULAR PURPOSE. You should
* have received a copy of GPLv2 along with this software; if not, see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*/

/**
* @ngdoc object
* @name Bastion.content-views.controller:PackageFilterController
*
* @requires $scope
* @requires gettext
* @requires Rule
*
* @description
*/
angular.module('Bastion.content-views').controller('PackageFilterController',
['$scope', 'gettext', 'Rule', function ($scope, gettext, Rule) {

$scope.rule = {
type: 'all',
editMode: false,
working: false
};

$scope.filter.$promise.then(function (filter) {
addType(filter.rules);
});

$scope.addRule = function (rule, filter) {
if ($scope.valid(rule)) {
Rule.save({filterId: filter.id}, rule, addSuccess, failure);
}
};

$scope.updateRule = function (rule, filter) {
var params = {filterId: filter.id, ruleId: rule.id},
success, failure;

// Need access to the original rule
success = function () {
rule.editMode = false;
rule.working = false;
$scope.successMessages = [gettext('Package successfully updated.')];
};

failure = function () {
rule.working = false;
};

Rule.update(params, rule, success, failure);
};

$scope.valid = function (rule) {
var valid = rule.name ? true : false;

if (rule.type === 'equal') {
valid = valid && rule.version;
} else if (rule.type === 'less') {
valid = valid && rule['max_version'];
} else if (rule.type === 'greater') {
valid = valid && rule['min_version'];
} else if (rule.type === 'range') {
valid = valid && rule['min_version'] && rule['max_version'];
}

return valid;
};

$scope.clearValues = function (rule) {
rule.version = undefined;
rule['min_version'] = undefined;
rule['max_version'] = undefined;
};

$scope.removeRules = function (filter) {
angular.forEach(filter.rules, function (rule) {
if (rule.selected) {
removeRule(rule);
}
});
};

function removeRule(rule) {
var success,
rulesCopy = angular.copy($scope.filter.rules),
ruleId = rule.id;

success = function () {
angular.forEach(rulesCopy, function (rule, index) {
if (rule.id === ruleId) {
$scope.filter.rules.splice(index, 1);
}
});
};

Rule.delete({filterId: rule['content_view_filter_id'], ruleId: ruleId}, success, failure);
}

function addSuccess(rule) {
$scope.rule = {
type: 'all'
};
$scope.rule.editMode = false;
$scope.rule.working = false;
addType([rule]);
$scope.filter.rules.push(rule);

$scope.successMessages = [gettext('Package successfully added.')];
}

function failure(response) {
$scope.errorMessages = [response.data.displayMessage];
}

function addType(rules) {
angular.forEach(rules, function (rule) {
rule.type = type(rule);
});
}

function type(rule) {
var typeId;

if (rule.version) {
typeId = 'equal';
} else if (rule['min_version'] && !rule['max_version']) {
typeId = 'greater';
} else if (!rule.min && rule['max_version']) {
typeId = 'less';
} else if (rule.min && rule['max_version']) {
typeId = 'range';
} else {
typeId = 'all';
}

return typeId;
}

}]
);
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