From a47b2be177caa6bbafa919a31a79c758dff6d646 Mon Sep 17 00:00:00 2001
From: Honey <me_honeyy@proton.me>
Date: Sun, 17 May 2026 21:03:42 +0200
Subject: [PATCH] feat: romaji search for Japanese songs via wanakana
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When search input is pure ASCII (romaji), converts it to hiragana in
parallel using wanakana and merges both result sets. Deduplicates by ID
so no double entries. Helps find artists/songs tagged with hiragana in
sort fields (e.g. 'inabakumori' → 'いなばくもり').

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/views.js | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/src/views.js b/src/views.js
index 03056c8..295edaf 100644
--- a/src/views.js
+++ b/src/views.js
@@ -692,6 +692,24 @@ export async function loadRandom() {
   } catch(e) { el.innerHTML = `<p style="color:var(--danger)">${e.message}</p>`; }
 }
 
+// ─── ROMAJI → HIRAGANA (lazy-loaded) ───
+let _wanakana = null;
+async function _romajiToHiragana(q) {
+  // Only attempt conversion if query is pure ASCII (likely romaji)
+  if (!/^[a-z\s'-]+$/i.test(q.trim())) return null;
+  try {
+    if (!_wanakana) _wanakana = await import('https://cdn.jsdelivr.net/npm/wanakana@5/esm/wanakana.js');
+    const h = _wanakana.toHiragana(q.trim(), { passRomaji: false });
+    // If conversion produced actual hiragana (not just the same ASCII), use it
+    return /[぀-ゟ]/.test(h) ? h : null;
+  } catch { return null; }
+}
+
+function _mergeUniq(a, b) {
+  const seen = new Set(a.map(x => x.id));
+  return [...a, ...(b || []).filter(x => !seen.has(x.id))];
+}
+
 // ─── LOCAL SEARCH ───
 export function onLocalSearch(val) {
   clearTimeout(S.searchTimer);
@@ -704,10 +722,17 @@ export async function doLocalSearch(q) {
   const el = document.getElementById('search-results');
   el.innerHTML = '<div class="spinner"></div>';
   try {
-    const r = await api('search3', `&query=${encodeURIComponent(q)}&songCount=30&albumCount=10&artistCount=6`);
-    const res = r.searchResult3 || {};
+    const hiragana = await _romajiToHiragana(q);
+    const [r, r2] = await Promise.all([
+      api('search3', `&query=${encodeURIComponent(q)}&songCount=30&albumCount=10&artistCount=6`),
+      hiragana ? api('search3', `&query=${encodeURIComponent(hiragana)}&songCount=20&albumCount=6&artistCount=4`) : Promise.resolve(null),
+    ]);
+    const res  = r.searchResult3  || {};
+    const res2 = r2?.searchResult3 || {};
     el.innerHTML = '';
-    const artists = res.artist||[], albums = res.album||[], songs = res.song||[];
+    const artists = _mergeUniq(res.artist||[], res2.artist);
+    const albums  = _mergeUniq(res.album ||[], res2.album);
+    const songs   = _mergeUniq(res.song  ||[], res2.song);
     if(!artists.length && !albums.length && !songs.length) {
       el.innerHTML = '<div class="empty-state"><div class="icon">🔍</div><p>Keine Ergebnisse</p></div>'; return;
     }