From 03667020ae95ba855e21cc12a501962095899449 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Fri, 3 Nov 2017 13:45:37 +0300
Subject: api: better telegram messages

---
 .../java/com/juick/api/TelegramBotManager.java     | 11 +++++-
 .../com/juick/api/controllers/TelegramWebhook.java | 43 +++++++++++++---------
 2 files changed, 35 insertions(+), 19 deletions(-)

diff --git a/juick-api/src/main/java/com/juick/api/TelegramBotManager.java b/juick-api/src/main/java/com/juick/api/TelegramBotManager.java
index bdf8bc83..73b8c3a8 100644
--- a/juick-api/src/main/java/com/juick/api/TelegramBotManager.java
+++ b/juick-api/src/main/java/com/juick/api/TelegramBotManager.java
@@ -106,8 +106,15 @@ public class TelegramBotManager implements ApplicationListener<MessageEvent> {
         }
     }
 
-    public void telegramNotify(Long c, String msg) {
-        SendMessage telegramMessage = new SendMessage(c, msg);
+    public void telegramNotify(Long chatId, String msg) {
+        telegramNotify(chatId, msg, 0);
+    }
+
+    public void telegramNotify(Long chatId, String msg, Integer replyTo) {
+        SendMessage telegramMessage = new SendMessage(chatId, msg);
+        if (replyTo > 0) {
+            telegramMessage.replyToMessageId(replyTo);
+        }
         telegramMessage.parseMode(ParseMode.Markdown).disableWebPagePreview(true);
         bot.execute(telegramMessage, new Callback<SendMessage, SendResponse>() {
             @Override
diff --git a/juick-api/src/main/java/com/juick/api/controllers/TelegramWebhook.java b/juick-api/src/main/java/com/juick/api/controllers/TelegramWebhook.java
index 137e1a59..94cb81cc 100644
--- a/juick-api/src/main/java/com/juick/api/controllers/TelegramWebhook.java
+++ b/juick-api/src/main/java/com/juick/api/controllers/TelegramWebhook.java
@@ -52,6 +52,7 @@ import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.List;
+import java.util.Optional;
 
 /**
  * Created by vt on 24/11/2016.
@@ -128,28 +129,36 @@ public class TelegramWebhook {
                     } else {
                         Message replyMessage = message.replyToMessage();
                         if (replyMessage != null) {
-                            String finalText = text;
-                            String finalAttachment = attachment;
-                            Message finalMessage = message;
-                            Arrays.stream(replyMessage.entities())
+                            Optional<MessageEntity> juickLink = Arrays.stream(replyMessage.entities())
                                     .filter(this::isJuickLink)
-                                    .findFirst().ifPresent(e -> {
-                                if (StringUtils.isNotEmpty(e.url())) {
-                                    UriComponents uriComponents = UriComponentsBuilder.fromUriString(e.url()).build();
-                                    int mid = Integer.valueOf(uriComponents.getPath().substring(1));
-                                    String prefix = String.format("#%d ", mid);
-                                    int rid = 0;
-                                    if (StringUtils.isNotEmpty(uriComponents.getFragment())) {
-                                        rid = Integer.valueOf(uriComponents.getFragment());
-                                        prefix = String.format("#%d/%d ", mid, rid);
+                                    .findFirst();
+                            if (juickLink.isPresent()) {
+                                if (StringUtils.isNotEmpty(juickLink.get().url())) {
+                                    UriComponents uriComponents = UriComponentsBuilder.fromUriString(
+                                            juickLink.get().url()).build();
+                                    String path = uriComponents.getPath();
+                                    if (StringUtils.isNotEmpty(path) && path.length() > 1) {
+                                        int mid = Integer.valueOf(path.substring(1));
+                                        String prefix = String.format("#%d ", mid);
+                                        if (StringUtils.isNotEmpty(uriComponents.getFragment())) {
+                                            int rid = Integer.valueOf(uriComponents.getFragment());
+                                            prefix = String.format("#%d/%d ", mid, rid);
+                                        }
+                                        apiServer.processMessage(user_from, prefix + text, attachment);
+                                        telegramBotManager.telegramNotify(message.from().id().longValue(), "Reply sent");
+                                    } else {
+                                        logger.warn("invalid path: {}", path);
                                     }
-                                    apiServer.processMessage(user_from, prefix + finalText, finalAttachment);
-                                    telegramBotManager.telegramNotify(finalMessage.from().id().longValue(), "reply sent");
+                                } else {
+                                    logger.warn("invalid entity: {}", juickLink);
                                 }
-                            });
+                            } else {
+                                telegramBotManager.telegramNotify(message.from().id().longValue(),
+                                        "Can not reply to this message", message.messageId());
+                            }
                         } else {
                             apiServer.processMessage(user_from, text, attachment);
-                            telegramBotManager.telegramNotify(message.from().id().longValue(), "message sent");
+                            telegramBotManager.telegramNotify(message.from().id().longValue(), "Message sent");
                         }
                     }
                 }
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