From 651ed41f2c6c80abcfb20131a5181a3739cd5709 Mon Sep 17 00:00:00 2001
From: aNNiMON <annimon119@gmail.com>
Date: Fri, 27 Oct 2023 22:31:45 +0300
Subject: [PATCH] Fix /del command

---
 src/main/java/com/annimon/similarimagesbot/BotHandler.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/annimon/similarimagesbot/BotHandler.java b/src/main/java/com/annimon/similarimagesbot/BotHandler.java
index 248bf6f..65c34d8 100644
--- a/src/main/java/com/annimon/similarimagesbot/BotHandler.java
+++ b/src/main/java/com/annimon/similarimagesbot/BotHandler.java
@@ -32,7 +32,7 @@ import com.pengrad.telegrambot.response.SendResponse;
 public class BotHandler extends BaseBotHandler {
 
     private static final int RADIX = 36;
-    private final Pattern delPattern = Pattern.compile("/del([^_]+)_(\\d+)");
+    private final Pattern delPattern = Pattern.compile("/del([^_]+)_([^-]+)");
     private final Pattern comparePattern = Pattern.compile("/cmp([^-]+)_([^-]+)_(.*)");
 
     private final ImageIndexer indexer;
@@ -48,6 +48,7 @@ public class BotHandler extends BaseBotHandler {
     }
 
     protected void handleUpdates(List<Update> updates) {
+        if (updates.isEmpty()) return;
         final var removedPosts = processAdminCommands(updates);
         processUpdates(updates, removedPosts);
     }
@@ -115,6 +116,7 @@ public class BotHandler extends BaseBotHandler {
 
     private void processUpdates(List<Update> updates, Set<Post> ignoredPosts) {
         final List<Message> channelPosts = getChannelPostsWithPhotos(updates);
+        if (channelPosts.isEmpty()) return;
         final var similarImagesInfos = new ArrayList<SimilarImagesInfo>();
         for (var post : channelPosts) {
             final var originalPost = new Post(post.chat().id(), post.messageId());