fix: suggestions causing excessive updates

src/pages/home/report/ReportActionCompose/ComposerWithSuggestions/ComposerWithSuggestions.tsx

@@ -812,7 +812,6 @@ function ComposerWithSuggestions(
                 policyID={policyID}
                 // Input
                 value={value}
-                setValue={setValue}
                 selection={selection}
                 setSelection={setSelection}
                 resetKeyboardInput={resetKeyboardInput}

src/pages/home/report/ReportActionCompose/SuggestionEmoji.tsx

@@ -60,6 +60,8 @@ function SuggestionEmoji(
     ref: ForwardedRef<SuggestionsRef>,
 ) {
     const [suggestionValues, setSuggestionValues] = useState(defaultSuggestionsValues);
+    const suggestionValuesRef = useRef(suggestionValues);
+    suggestionValuesRef.current = suggestionValues;
 
     const isEmojiSuggestionsMenuVisible = suggestionValues.suggestedEmojis.length > 0 && suggestionValues.shouldShowSuggestionMenu;
 
@@ -149,15 +151,15 @@ function SuggestionEmoji(
      * Calculates and cares about the content of an Emoji Suggester
      */
     const calculateEmojiSuggestion = useCallback(
-        (selectionStart?: number, selectionEnd?: number) => {
-            if (selectionStart !== selectionEnd || !selectionEnd || shouldBlockCalc.current || !value || (selectionStart === 0 && selectionEnd === 0)) {
+        (newValue: string, selectionStart?: number, selectionEnd?: number) => {
+            if (selectionStart !== selectionEnd || !selectionEnd || shouldBlockCalc.current || !newValue || (selectionStart === 0 && selectionEnd === 0)) {
                 shouldBlockCalc.current = false;
                 resetSuggestions();
                 return;
             }
-            const leftString = value.substring(0, selectionEnd);
+            const leftString = newValue.substring(0, selectionEnd);
             const colonIndex = leftString.lastIndexOf(':');
-            const isCurrentlyShowingEmojiSuggestion = isEmojiCode(value, selectionEnd);
+            const isCurrentlyShowingEmojiSuggestion = isEmojiCode(newValue, selectionEnd);
 
             const nextState: SuggestionsValue = {
                 suggestedEmojis: [],
@@ -171,19 +173,25 @@ function SuggestionEmoji(
                 nextState.shouldShowSuggestionMenu = !isEmptyObject(newSuggestedEmojis);
             }
 
+            // Early return if there is no update
+            const currentState = suggestionValuesRef.current;
+            if (nextState.suggestedEmojis.length === 0 && currentState.suggestedEmojis.length === 0) {
+                return;
+            }
+
             setSuggestionValues((prevState) => ({...prevState, ...nextState}));
             setHighlightedEmojiIndex(0);
         },
-        [value, preferredLocale, setHighlightedEmojiIndex, resetSuggestions],
+        [preferredLocale, setHighlightedEmojiIndex, resetSuggestions],
     );
 
     useEffect(() => {
         if (!isComposerFocused) {
             return;
         }
 
-        calculateEmojiSuggestion(selection.start, selection.end);
-    }, [selection, calculateEmojiSuggestion, isComposerFocused]);
+        calculateEmojiSuggestion(value, selection.start, selection.end);
+    }, [value, selection, calculateEmojiSuggestion, isComposerFocused]);
 
     const setShouldBlockSuggestionCalc = useCallback(
         (shouldBlockSuggestionCalc: boolean) => {

src/pages/home/report/ReportActionCompose/SuggestionMention.tsx

@@ -88,6 +88,8 @@ function SuggestionMention(
     const personalDetails = usePersonalDetails() ?? CONST.EMPTY_OBJECT;
     const {translate, formatPhoneNumber} = useLocalize();
     const [suggestionValues, setSuggestionValues] = useState(defaultSuggestionsValues);
+    const suggestionValuesRef = useRef(suggestionValues);
+    suggestionValuesRef.current = suggestionValues;
 
     const [reports] = useOnyx(ONYXKEYS.COLLECTION.REPORT);
 
@@ -344,15 +346,15 @@ function SuggestionMention(
     );
 
     const calculateMentionSuggestion = useCallback(
-        (selectionStart?: number, selectionEnd?: number) => {
+        (newValue: string, selectionStart?: number, selectionEnd?: number) => {
             if (selectionEnd !== selectionStart || !selectionEnd || shouldBlockCalc.current || selectionEnd < 1 || !isComposerFocused) {
                 shouldBlockCalc.current = false;
                 resetSuggestions();
                 return;
             }
 
-            const afterLastBreakLineIndex = value.lastIndexOf('\n', selectionEnd - 1) + 1;
-            const leftString = value.substring(afterLastBreakLineIndex, selectionEnd);
+            const afterLastBreakLineIndex = newValue.lastIndexOf('\n', selectionEnd - 1) + 1;
+            const leftString = newValue.substring(afterLastBreakLineIndex, selectionEnd);
             const words = leftString.split(CONST.REGEX.SPACE_OR_EMOJI);
             const lastWord: string = words.at(-1) ?? '';
             const secondToLastWord = words[words.length - 3];
@@ -401,18 +403,24 @@ function SuggestionMention(
                 nextState.shouldShowSuggestionMenu = true;
             }
 
+            // Early return if there is no update
+            const currentState = suggestionValuesRef.current;
+            if (currentState.suggestedMentions.length === 0 && nextState.suggestedMentions?.length === 0) {
+                return;
+            }
+
             setSuggestionValues((prevState) => ({
                 ...prevState,
                 ...nextState,
             }));
             setHighlightedMentionIndex(0);
         },
-        [isComposerFocused, value, isGroupPolicyReport, setHighlightedMentionIndex, resetSuggestions, getUserMentionOptions, weightedPersonalDetails, getRoomMentionOptions, reports],
+        [isComposerFocused, isGroupPolicyReport, setHighlightedMentionIndex, resetSuggestions, getUserMentionOptions, weightedPersonalDetails, getRoomMentionOptions, reports],
     );
 
     useEffect(() => {
-        calculateMentionSuggestion(selection.start, selection.end);
-    }, [selection, calculateMentionSuggestion]);
+        calculateMentionSuggestion(value, selection.start, selection.end);
+    }, [value, selection, calculateMentionSuggestion]);
 
     useEffect(() => {
         debouncedSearchInServer();

src/pages/home/report/ReportActionCompose/Suggestions.tsx

@@ -14,9 +14,6 @@ type SuggestionProps = {
     /** The current input value */
     value: string;
 
-    /** Callback to update the current input value */
-    setValue: (newValue: string) => void;
-
     /** The current selection value */
     selection: TextSelection;
 
@@ -56,7 +53,6 @@ type SuggestionProps = {
 function Suggestions(
     {
         value,
-        setValue,
         selection,
         setSelection,
         updateComment,
@@ -153,7 +149,6 @@ function Suggestions(
 
     const baseProps = {
         value,
-        setValue,
         setSelection,
         selection,
         updateComment,

src/pages/home/report/ReportActionItemMessageEdit.tsx

@@ -534,7 +534,6 @@ function ReportActionItemMessageEdit(
                         measureParentContainerAndReportCursor={measureParentContainerAndReportCursor}
                         isGroupPolicyReport={false}
                         value={draft}
-                        setValue={setDraft}
                         selection={selection}
                         setSelection={setSelection}
                     />