From 6118fe5ad17b068237a43262d459664869affcc0 Mon Sep 17 00:00:00 2001
From: Daniil Gentili <daniil@daniil.it>
Date: Fri, 16 Aug 2024 14:08:16 +0200
Subject: [PATCH] Add automatic toMTProtoId method

---
 README.md             |  6 ++++++
 examples/1-type.php   |  6 ++++++
 src/DialogId.php      | 17 +++++++++++++++++
 test/DialogIdTest.php |  5 +++++
 4 files changed, 34 insertions(+)

diff --git a/README.md b/README.md
index 38bc3a0..03d4e7a 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,12 @@ expect(DialogId::isChat(-101374607) === true);
 expect(DialogId::isSupergroupOrChannel(-1001234567890) === true);
 expect(DialogId::isSecretChat(-1999898625393) === true);
 
+// Converts a bot API dialog ID => MTProto ID automatically depending on type
+expect(DialogId::toMTProtoId(-1001234567890) === 1234567890);
+expect(DialogId::toMTProtoId(-123456789) === 123456789);
+expect(DialogId::toMTProtoId(123456789) === 123456789);
+expect(DialogId::toMTProtoId(-1999876543211) === 123456789);
+
 echo "OK!".PHP_EOL;
 ```
 
diff --git a/examples/1-type.php b/examples/1-type.php
index 21f344c..ae3add1 100644
--- a/examples/1-type.php
+++ b/examples/1-type.php
@@ -56,4 +56,10 @@ expect(DialogId::isChat(-101374607) === true);
 expect(DialogId::isSupergroupOrChannel(-1001234567890) === true);
 expect(DialogId::isSecretChat(-1999898625393) === true);
 
+// Converts a bot API dialog ID => MTProto ID automatically depending on type
+expect(DialogId::toMTProtoId(-1001234567890) === 1234567890);
+expect(DialogId::toMTProtoId(-123456789) === 123456789);
+expect(DialogId::toMTProtoId(123456789) === 123456789);
+expect(DialogId::toMTProtoId(-1999876543211) === 123456789);
+
 echo "OK!".PHP_EOL;
diff --git a/src/DialogId.php b/src/DialogId.php
index 48514d1..e8d1690 100644
--- a/src/DialogId.php
+++ b/src/DialogId.php
@@ -231,4 +231,21 @@ enum DialogId
         }
         return $id;
     }
+
+    /**
+     * Convert bot API ID to MTProto ID (automatically detecting the correct type).
+     *
+     * @psalm-pure
+     *
+     * @param int $id Bot API dialog ID
+     */
+    public static function toMTProtoId(int $id): int
+    {
+        return match (self::getType($id)) {
+            self::USER => self::toUserId($id),
+            self::CHAT => self::toChatId($id),
+            self::CHANNEL_OR_SUPERGROUP => self::toSupergroupOrChannelId($id),
+            self::SECRET_CHAT => self::toSecretChatId($id)
+        };
+    }
 }
diff --git a/test/DialogIdTest.php b/test/DialogIdTest.php
index 443bb17..f9071e7 100644
--- a/test/DialogIdTest.php
+++ b/test/DialogIdTest.php
@@ -30,6 +30,11 @@ final class DialogIdTest extends TestCase
         $this->assertSame(1234567890, DialogId::toSupergroupOrChannelId(-1001234567890));
         $this->assertSame(101374607, DialogId::toSecretChatId(-1999898625393));
 
+        $this->assertSame(101374607, DialogId::toMTProtoId(101374607));
+        $this->assertSame(101374607, DialogId::toMTProtoId(-101374607));
+        $this->assertSame(1234567890, DialogId::toMTProtoId(-1001234567890));
+        $this->assertSame(101374607, DialogId::toMTProtoId(-1999898625393));
+
         $this->assertSame(101374607, DialogId::fromUserId(101374607));
         $this->assertSame(-101374607, DialogId::fromChatId(101374607));
         $this->assertSame(-1001234567890, DialogId::fromSupergroupOrChannelId(1234567890));