From db32f4116ce9c780bc21bd28d6f1c57417100bc9 Mon Sep 17 00:00:00 2001
From: still-flow <46608177+still-flow@users.noreply.github.com>
Date: Mon, 23 Jan 2023 21:59:35 +0300
Subject: [PATCH] add rudimentary emote autocomplete

---
 .../twire/fragments/ChatFragment.java         | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/app/src/main/java/com/perflyst/twire/fragments/ChatFragment.java b/app/src/main/java/com/perflyst/twire/fragments/ChatFragment.java
index 1fc62d9e..5e071d9f 100644
--- a/app/src/main/java/com/perflyst/twire/fragments/ChatFragment.java
+++ b/app/src/main/java/com/perflyst/twire/fragments/ChatFragment.java
@@ -674,6 +674,7 @@ private void setupChatInput() {
         });
 
         final Pattern mentionPattern = Pattern.compile("@(\\w+)$");
+        final Pattern emotePattern = Pattern.compile(":(\\w+)$");
         mSendText.addTextChangedListener(new TextWatcher() {
             @Override
             public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
@@ -697,6 +698,29 @@ public void afterTextChanged(Editable editable) {
                 } else {
                     setMentionSuggestions(new ArrayList<>());
                 }
+                
+                
+                mInputMatcher = emotePattern.matcher(getSendText());
+
+                String emoteName = null;
+                while (mInputMatcher.find()) {
+                    emoteName = mInputMatcher.group(1);
+                }
+
+                if (emoteName != null && !emoteName.isEmpty() && customEmotes != null) {
+                    List<String> result = new ArrayList<>();
+
+                    for (Emote emote : customEmotes) {
+                        if (emote.getKeyword().toLowerCase().matches("\\w*" + emoteName.toLowerCase() + "\\w*") && !result.contains(emote.getKeyword())) {
+                            result.add(emote.getKeyword());
+                        }
+                    }
+
+                    Collections.sort(result);
+                    setMentionSuggestions(result);
+                } else {
+                    setMentionSuggestions(new ArrayList<>());
+                }
             }
         });