clrghouz/app/Classes/FTN/Packet/FTS1.php

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<?php
namespace App\Classes\FTN\Packet;
use Illuminate\Support\Arr;
use App\Classes\FTN\Packet;
use App\Models\Setup;
/**
* FTS-0001 http://ftsc.org/docs/fts-0001.016
*
* Commonly known as Type 2 packets
* Supports 3D addresses
*/
final class FTS1 extends Packet
{
protected const HEADER = [
'onode' => [0x00,'v',2], // Orig Node
'dnode' => [0x02,'v',2], // Dest Node
'y' => [0x04,'v',2], // Year
'm' => [0x06,'v',2], // Month
'd' => [0x08,'v',2], // Day
'H' => [0x0a,'v',2], // Hour
'M' => [0x0c,'v',2], // Minute
'S' => [0x0e,'v',2], // Second
'baud' => [0x10,'v',2], // Baud
'type' => [0x12,'v',2], // Packet Version (should be 2)
'onet' => [0x14,'v',2], // Orig Net
'dnet' => [0x16,'v',2], // Dest Net
'prodcode' => [0x18,'C',1], // Product Code
'serial' => [0x19,'C',1], // Serial Number
'password' => [0x1a,'a8',8], // Packet Password
'ozone' => [0x22,'v',2], // Orig Zone
'dzone' => [0x24,'v',2], // Dest Zone
'reserved' => [0x26,'a20',20], // Reserved
];
public const TYPE = '2';
/**
* Create our message packet header
*/
protected function header(): string
{
try {
return pack(collect(self::HEADER)->pluck(1)->join(''),
$this->ff, // Orig Node
$this->tf, // Dest Node
Arr::get($this->header,'y'), // Year
Arr::get($this->header,'m'), // Month
Arr::get($this->header,'d'), // Day
Arr::get($this->header,'H'), // Hour
Arr::get($this->header,'M'), // Minute
Arr::get($this->header,'S'), // Second
0, // Baud
2, // Packet Version (should be 2)
$this->fn, // Orig Net
$this->tn, // Dest Net
(Setup::PRODUCT_ID & 0xff), // Product Code Lo
Setup::PRODUCT_VERSION_MAJ, // Product Version Major
$this->password, // Packet Password
$this->fz, // Orig Zone
$this->tz, // Dest Zone
'', // Reserved
);
} catch (\Exception $e) {
return $e->getMessage();
}
}
/**
* Determine if this is a fsc-0045 packet
*
* @param string $header
* @return bool
* @throws \Exception
*/
public static function is_type(string $header): bool
{
$head = unpack(self::unpackheader(self::HEADER),$header);
return (
(Arr::get($head,'type') === 2)
&& (strlen(rtrim(Arr::get($head,'reserved'),"\x00")) === 0)
);
}
}