Implemented file sending during BINKP and EMSI sessions

app/Classes/File/Tic.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Classes\File;
+
+use App\Classes\FTN\Tic as FTNTic;
+use App\Models\{Address,File};
+
+class Tic extends Item
+{
+	/**
+	 * @throws \Exception
+	 */
+	public function __construct(Address $ao,File $fo,int $action)
+	{
+		$this->action |= $action;
+
+		$tic = new FTNTic;
+
+		switch ($action) {
+			case self::I_SEND:
+				$this->file = $tic->generate($ao,$fo);
+				$this->file_type = self::IS_TIC;
+				$this->file_name = sprintf('%s.tic',sprintf('%08x',$fo->id));
+				$this->file_size = strlen($this->file);
+				$this->file_mtime = $fo->created_at->timestamp;
+
+				break;
+
+			default:
+				throw new \Exception('Unknown action: '.$action);
+		}
+	}
+
+	public function read(int $start,int $length): string
+	{
+		return substr($this->file,$start,$length);
+	}
+}