From 5b5adf2e2ee0a1303c71e9161328baeaa07e2ed3 Mon Sep 17 00:00:00 2001
From: Taksh <takshkothari09@gmail.com>
Date: Sat, 1 Aug 2026 14:08:13 +0300
Subject: [PATCH] feat: add PeopleNameFilter for people-sheet search

Pure case-insensitive display-name match so mesh, geohash, bridge, and
group lists can share one query without duplicating trim/empty rules.
---
 bitchat/Utils/PeopleNameFilter.swift | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 bitchat/Utils/PeopleNameFilter.swift

diff --git a/bitchat/Utils/PeopleNameFilter.swift b/bitchat/Utils/PeopleNameFilter.swift
new file mode 100644
index 00000000..3e3fafdd
--- /dev/null
+++ b/bitchat/Utils/PeopleNameFilter.swift
@@ -0,0 +1,19 @@
+//
+//  PeopleNameFilter.swift
+//  bitchat
+//
+//  This is free and unencumbered software released into the public domain.
+//  For more information, see <https://unlicense.org>
+//
+
+import Foundation
+
+/// Case-insensitive nickname / display-name match for the people sheet search field.
+enum PeopleNameFilter {
+    /// Empty / whitespace-only queries match everything (no filter active).
+    static func matches(_ displayName: String, query: String) -> Bool {
+        let trimmed = query.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmed.isEmpty else { return true }
+        return displayName.localizedCaseInsensitiveContains(trimmed)
+    }
+}