fix(review): fixes review word counting for international languages

Fixes #2110

Author: seferturan

projects/client/src/lib/sections/summary/components/comments/_internal/drawers/isReviewValid.spec.ts

@@ -70,4 +70,16 @@ describe('isReviewValid', () => {
   it('should return false for fewer than 5 emoji-free words with surrounding emojis', () => {
     expect(isReviewValid('😀🎉🔥 one two three four 🌟💯')).toBe(false);
   });
+
+  it('should count Japanese words correctly without spaces', () => {
+    expect(isReviewValid('このアニメは本当に素晴らしかった')).toBe(true);
+  });
+
+  it('should return false for too few Japanese characters', () => {
+    expect(isReviewValid('すごい')).toBe(false);
+  });
+
+  it('should count mixed Japanese and English words correctly', () => {
+    expect(isReviewValid('この映画は really amazing')).toBe(true);
+  });
 });

projects/client/src/lib/sections/summary/components/comments/_internal/drawers/isReviewValid.ts

@@ -1,9 +1,9 @@
-const WORD_COUNT_THRESHOLD = 5;
+const wordCountThreshold = 5;
+const segmenter = new Intl.Segmenter(undefined, { granularity: 'word' });
 
 export function isReviewValid(review: string): boolean {
-  const words = review
-    .split(/\s+/)
-    .filter((word) => /[\p{L}\p{N}]/u.test(word));
+  const words = [...segmenter.segment(review)]
+    .filter((segment) => segment.isWordLike);
 
-  return words.length >= WORD_COUNT_THRESHOLD;
+  return words.length >= wordCountThreshold;
 }