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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\MessageBuilder;
use LINE\LINEBot\Constant\MessageType;
use LINE\LINEBot\MessageBuilder;
/**
* A builder class for text message.
*
* @package LINE\LINEBot\MessageBuilder
*/
class TextMessageBuilder implements MessageBuilder
{
/** @var string[] */
private $texts;
/** @var array */
private $message = [];
/**
* TextMessageBuilder constructor.
*
* Exact signature of this constructor is <code>new TextMessageBuilder(string $text, string[] $extraTexts)</code>.
*
* Means, this constructor can also receive multiple messages like so;
*
* <code>
* $textBuilder = new TextMessageBuilder('text', 'extra text1', 'extra text2', ...);
* </code>
*
* @param string $text
* @param string[]|null $extraTexts
*/
public function __construct($text, $extraTexts = null)
{
$extra = [];
if (!is_null($extraTexts)) {
$args = func_get_args();
$extra = array_slice($args, 1);
}
$this->texts = array_merge([$text], $extra);
}
/**
* Builds text message structure.
*
* @return array
*/
public function buildMessage()
{
if (!empty($this->message)) {
return $this->message;
}
foreach ($this->texts as $text) {
$this->message[] = [
'type' => MessageType::TEXT,
'text' => $text,
];
}
return $this->message;
}
}