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<?php
/**
* Copyright 2016 LINE Corporation
*
* LINE Corporation licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
namespace LINE\LINEBot\TemplateActionBuilder;
use LINE\LINEBot\Constant\ActionType;
use LINE\LINEBot\TemplateActionBuilder;
/**
* A builder class for postback action.
*
* @package LINE\LINEBot\TemplateActionBuilder
*/
class PostbackTemplateActionBuilder implements TemplateActionBuilder
{
/** @var string */
private $label;
/** @var string */
private $data;
/** @var string|null */
private $text;
/**
* PostbackAction constructor.
*
* @param string $label Label of action.
* @param string $data Data of postback.
* @param string|null $text The text which will be sent when action is executed (optional).
*/
public function __construct($label, $data, $text = null)
{
$this->label = $label;
$this->data = $data;
$this->text = $text;
}
/**
* Builds postback action structure.
*
* @return array Built postback action structure.
*/
public function buildTemplateAction()
{
$action = [
'type' => ActionType::POSTBACK,
'label' => $this->label,
'data' => $this->data,
];
if (isset($this->text)) {
// If text is set, append extend field.
$action['text'] = $this->text;
}
return $action;
}
}