Coin: A very early implementation of Toncoin fetching

It actually works! But there is a several problems:
1. Notification displays 0 coins instead of real number. Maybe @celestora will fix it idk
2. There is no real configuration of server, currency (rn there is TONs per 1 coin), regex or precise (aka count cents)

There is a lot of work, like integrating interactive interface with TON address and QR code, etcetera...

And btw only CLI is available right now. openvkcli fetch-ton command should be putted into cron, just to regularly check for new transactions :D

Related to #474

CLI/FetchToncoinTransactions.php

@@ -0,0 +1,112 @@
+<?php declare(strict_types=1);
+namespace openvk\CLI;
+use Chandler\Database\DatabaseConnection;
+use openvk\Web\Models\Repositories\Users;
+use openvk\Web\Models\Entities\Notifications\CoinsTransferNotification;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Nette\Utils\ImageException;
+
+define("NANOTON", 1000000000); 
+
+class FetchToncoinTransactions extends Command
+{
+    private $images;
+
+    protected static $defaultName = "fetch-ton";
+
+    function __construct()
+    {
+        $this->transactions = DatabaseConnection::i()->getContext()->table("cryptotransactions");
+
+        parent::__construct();
+    }
+
+    protected function configure(): void
+    {
+        $this->setDescription("Fetches TON transactions to top up the users' balance")
+             ->setHelp("This command checks for new transactions on TON Wallet and then top up the balance of specified users");
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $header  = $output->section();
+        $counter = $output->section();
+
+        $header->writeln([
+            "TONCOIN Fetcher",
+            "=====================",
+            "",
+        ]);
+
+        if(!OPENVK_ROOT_CONF["openvk"]["preferences"]["ton"]["enabled"])
+        {
+            $header->writeln([
+                "Sorry, but you handn't enabled the TON support in your config file yet.",
+                "",
+            ]);
+            return Command::FAILURE;
+        }
+
+        $testnet_subdomain = OPENVK_ROOT_CONF["openvk"]["preferences"]["ton"]["testnet"] ? "testnet." : "";
+        $url = "https://" . $testnet_subdomain . "toncenter.com/api/v2/getTransactions?";
+
+        $opts = [
+            "http" => [
+                "method" => "GET",
+                "header" => "Accept: application/json"
+            ]
+        ];
+
+        $selection = $this->transactions->select('hash, lt')->order("id DESC")->limit(1)->fetch();
+        $tr_hash = $selection->hash ?? NULL;
+        $tr_lt = $selection->lt ?? NULL;
+
+        $data = http_build_query([
+            "address" => OPENVK_ROOT_CONF["openvk"]["preferences"]["ton"]["address"],
+            "limit" => 100,
+            "hash" => $tr_hash,
+            "to_lt" => $tr_lt
+        ]);
+
+        $response = file_get_contents($url . $data, false, stream_context_create($opts));
+        $response = json_decode($response, true);
+
+        $header->writeln(["Gonna up the balance of users"]);
+        foreach($response["result"] as $transfer)
+        {
+            $output_array;
+            preg_match('/ovk=([0-9]+)/', $transfer["in_msg"]["message"], $output_array);
+            $userid = ctype_digit($output_array[1]) ? intval($output_array[1]) : null;
+            if($userid === null)
+            {
+                $header->writeln(["Well, that's a donation. Thanks! XD"]);
+            }
+            else
+            {
+                $user = (new Users)->get($userid);
+                if(!$user) 
+                {
+                    $header->writeln(["Well, that's a donation. Thanks! XD"]);
+                } else {
+                    $value = ($transfer["in_msg"]["value"] / NANOTON) / OPENVK_ROOT_CONF["openvk"]["preferences"]["ton"]["rate"];
+                    $user->setCoins($user->getCoins() + $value);
+                    $user->save();
+                    (new CoinsTransferNotification($user, (new Users)->get(OPENVK_ROOT_CONF["openvk"]["preferences"]["support"]["adminAccount"]), 0, "Via TON cryptocurrency"))->emit();
+                    $header->writeln([$value . " coins are added to " . $user->getId() . " user id"]);
+                    $this->transactions->insert([
+                        "id" => null,
+                        "hash" => $transfer["transaction_id"]["hash"],
+                        "lt" => $transfer["transaction_id"]["lt"]
+                    ]);
+                }
+            }
+        }
+
+        $counter->overwrite("Processing finished :3");
+
+        return Command::SUCCESS;
+    }
+}

openvkctl

@@ -9,5 +9,6 @@ $bootstrap->ignite(true);
 
 $application = new Application();
 $application->add(new CLI\RebuildImagesCommand);
+$application->add(new CLI\FetchToncoinTransactions);
 
 $application->run();