From a6cd501a78cdc515168d30586306d9497e2694cf Mon Sep 17 00:00:00 2001
From: Eve <92513238+1320209572@users.noreply.github.com>
Date: Tue, 8 Sep 2026 11:51:07 +0800
Subject: [PATCH] fix(elasticsearch): support fuzzy index completion

---
 .../lib/elasticsearch/elasticsearchCompletion.ts   | 14 +++++++++++++-
 packages/app-tests/elasticsearchCompletion.test.ts | 12 ++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/apps/desktop/src/lib/elasticsearch/elasticsearchCompletion.ts b/apps/desktop/src/lib/elasticsearch/elasticsearchCompletion.ts
index 3d3d2161bb..3ecfec07df 100644
--- a/apps/desktop/src/lib/elasticsearch/elasticsearchCompletion.ts
+++ b/apps/desktop/src/lib/elasticsearch/elasticsearchCompletion.ts
@@ -242,7 +242,7 @@ function pathItems(context: ElasticsearchCompletionContext, indices: string[]):
 
 function indexItems(prefix: string, indices: string[]): ElasticsearchCompletionItem[] {
   return indices
-    .filter((index) => matchesFuzzyPrefix(index, prefix))
+    .filter((index) => matchesIndexFuzzyPrefix(index, prefix))
     .slice(0, 100)
     .map((index) => ({
       label: index,
@@ -373,6 +373,18 @@ function matchesPrefix(value: string, prefix: string): boolean {
   return value.toLowerCase().startsWith(prefix.toLowerCase());
 }
 
+function matchesIndexFuzzyPrefix(value: string, prefix: string): boolean {
+  const normalizedValue = value.toLowerCase();
+  const normalizedPrefix = prefix.toLowerCase();
+  let from = 0;
+  for (const char of normalizedPrefix) {
+    const position = normalizedValue.indexOf(char, from);
+    if (position < 0) return false;
+    from = position + char.length;
+  }
+  return true;
+}
+
 function matchesFuzzyPrefix(value: string, prefix: string): boolean {
   const normalizedValue = value.toLowerCase();
   const normalizedPrefix = prefix.toLowerCase();
diff --git a/packages/app-tests/elasticsearchCompletion.test.ts b/packages/app-tests/elasticsearchCompletion.test.ts
index 1455090472..abeb822efb 100644
--- a/packages/app-tests/elasticsearchCompletion.test.ts
+++ b/packages/app-tests/elasticsearchCompletion.test.ts
@@ -60,6 +60,18 @@ test("suggests Elasticsearch indices by prefix", () => {
   );
 });
 
+test("suggests Elasticsearch indices by case-insensitive ordered cross-segment match", () => {
+  const text = "GET /MiM";
+  const items = buildElasticsearchCompletionItems(text, text.length, {
+    indices: ["my_index_misc_20260907", "my_index_logs_20260907"],
+  });
+
+  assert.deepEqual(
+    items.filter((item) => item.detail === "index").map((item) => item.label),
+    ["my_index_misc_20260907"],
+  );
+});
+
 test("index completion preserves endpoint suffix after cursor", () => {
   const text = "GET /ord/_search";
   const cursor = "GET /ord".length;