/**
* prepare parts of message
* @throws Exception
*/
protected function _prepareParts()
{
//
$headerSize = self::HEADER_SIZE;
$max = Helper::getLimit('normal');
if ($this->_isUnicode) {
// max length sms to unicode
$max = Helper::getLimit('unicode');
// can't compress message
$this->getPdu()->getDcs()->setTextCompressed(FALSE)->setTextAlphabet(DCS::ALPHABET_UCS2);
// type alphabet is UCS2
}
// if message is compressed
if ($this->getPdu()->getDcs()->getTextCompressed()) {
$max = Helper::getLimit('compress');
$headerSize++;
}
$parts = $this->_splitMessage($max, $headerSize);
$header = count($parts) > 1;
$uniqid = rand(0, 65535);
// message will be splited, need headers
if ($header) {
$this->getPdu()->getType()->setUdhi(1);
}
foreach ($parts as $index => $text) {
$params = $header ? array('SEGMENTS' => count($parts), 'CURRENT' => $index + 1, 'POINTER' => $uniqid) : NULL;
$part = NULL;
$size = 0;
switch ($this->getPdu()->getDcs()->getTextAlphabet()) {
case DCS::ALPHABET_DEFAULT:
PDU::debug("Helper::encode7bit()");
list($size, $part) = Helper::encode7bit($text);
break;
case DCS::ALPHABET_8BIT:
PDU::debug("Helper::encode8BitMessage()");
list($size, $part) = Helper::encode8Bit($text);
break;
case DCS::ALPHABET_UCS2:
PDU::debug("Helper::encode16BitMessage()");
list($size, $part) = Helper::encode16Bit($text);
break;
default:
throw new Exception("Unknown alphabet");
}
if ($header) {
$size += $headerSize;
}
$this->_parts[] = new Data\Part($this, $part, $size, $params);
}
}
