feat: new chain

app/Telegram/Handlers/TransferCommand.php

@@ -18,37 +18,55 @@ class TransferCommand
 
         if ($parts === []) {
             $bot->sendMessage(
-                "Usage: /transfer <fromAddress> [TRX|USDT] [amount]\n"
-                ."Omit amount to transfer all. Default asset: USDT.\n"
-                .'To = TRANSFER_TO_ADDRESS (env).'
+                "Usage: /transfer <fromAddress> [TRX|USDT|ETH|BTC] [amount]\n"
+                ."Omit amount to transfer all. Chain is inferred from address.\n"
+                ."Defaults: Tron→USDT, ETH→ETH, BTC→BTC.\n"
+                .'To = per-chain TRANSFER_TO_ADDRESS* (env).'
             );
 
             return;
         }
 
         $from = $parts[0];
-        $asset = 'USDT';
+        $chain = $this->detectChain($from);
+        if ($chain === null) {
+            $bot->sendMessage('Unrecognized address. Supported: Tron (T…), ETH (0x…), BTC (1…/3…/bc1…).');
+
+            return;
+        }
+
+        $asset = $this->defaultAsset($chain);
         $amount = null;
+        $allowed = $this->assetsForChain($chain);
 
         if (count($parts) === 2) {
             $second = strtoupper($parts[1]);
-            if (in_array($second, ['TRX', 'USDT'], true)) {
+            if (in_array($second, $allowed, true)) {
                 $asset = $second;
-            } elseif ($this->isAmount($parts[1])) {
+            } elseif ($this->isAmount($parts[1], match ($chain) {
+                'eth' => 18,
+                'btc' => 8,
+                default => 6,
+            })) {
                 $amount = $parts[1];
             } else {
-                $bot->sendMessage('Second arg must be TRX, USDT, or an amount.');
+                $bot->sendMessage('Second arg must be '.implode('|', $allowed).', or an amount.');
 
                 return;
             }
         } elseif (count($parts) >= 3) {
             $asset = strtoupper($parts[1]);
-            if (! in_array($asset, ['TRX', 'USDT'], true)) {
-                $bot->sendMessage('Asset must be TRX or USDT.');
+            if (! in_array($asset, $allowed, true)) {
+                $bot->sendMessage('Asset must be '.implode(' or ', $allowed).' for '.$chain.'.');
 
                 return;
             }
-            if (! $this->isAmount($parts[2])) {
+            $decimals = match ($asset) {
+                'ETH' => 18,
+                'BTC' => 8,
+                default => 6,
+            };
+            if (! $this->isAmount($parts[2], $decimals)) {
                 $bot->sendMessage('Invalid amount.');
 
                 return;
@@ -57,9 +75,9 @@ class TransferCommand
         }
 
         $label = $amount === null ? "ALL {$asset}" : "{$amount} {$asset}";
-        $bot->sendMessage("⏳ Transferring {$label} from {$from} …");
+        $bot->sendMessage("⏳ Transferring {$label} from {$from} ({$chain}) …");
 
-        $result = $this->transfers->handle('tron', $from, $amount, $asset);
+        $result = $this->transfers->handle($chain, $from, $amount, $asset, $this->operatorLabel($bot));
         if (! ($result['ok'] ?? false)) {
             $bot->sendMessage('❌ '.($result['error'] ?? 'Transfer failed'));
 
@@ -68,6 +86,7 @@ class TransferCommand
 
         $bot->sendMessage(implode("\n", [
             '✅ Transfer submitted',
+            'Chain: '.$chain,
             'From: '.$result['from'],
             'To: '.$result['to'],
             'Amount: '.$result['amount'].' '.$result['asset'],
@@ -75,8 +94,61 @@ class TransferCommand
         ]));
     }
 
-    private function isAmount(string $value): bool
+    private function detectChain(string $address): ?string
     {
-        return (bool) preg_match('/^\d+(\.\d{1,6})?$/', $value);
+        $address = trim($address);
+        if (preg_match('/^T[1-9A-HJ-NP-Za-km-z]{33}$/', $address)) {
+            return 'tron';
+        }
+        if (preg_match('/^0x[0-9a-fA-F]{40}$/', $address)) {
+            return 'eth';
+        }
+        if (preg_match('/^(bc1|tb1)[a-z0-9]{8,87}$/i', $address)) {
+            return 'btc';
+        }
+        if (preg_match('/^[13][1-9A-HJ-NP-Za-km-z]{24,33}$/', $address)) {
+            return 'btc';
+        }
+
+        return null;
+    }
+
+    private function defaultAsset(string $chain): string
+    {
+        return match ($chain) {
+            'eth' => 'ETH',
+            'btc' => 'BTC',
+            default => 'USDT',
+        };
+    }
+
+    /** @return list<string> */
+    private function assetsForChain(string $chain): array
+    {
+        return match ($chain) {
+            'eth' => ['ETH', 'USDT'],
+            'btc' => ['BTC'],
+            default => ['TRX', 'USDT'],
+        };
+    }
+
+    private function isAmount(string $value, int $decimals = 6): bool
+    {
+        return (bool) preg_match('/^\d+(\.\d{1,'.$decimals.'})?$/', $value);
+    }
+
+    private function operatorLabel(Nutgram $bot): string
+    {
+        $user = $bot->user();
+        $id = $user?->id ?? $bot->userId();
+        $username = $user?->username;
+
+        if ($username) {
+            return "telegram:{$id}@{$username}";
+        }
+
+        $name = trim((string) ($user?->first_name ?? ''));
+
+        return $name !== '' ? "telegram:{$id}({$name})" : "telegram:{$id}";
     }
 }