feat: Introduce multi-platform architecture for Electron and Web clients with shared UI components, Convex backend for messaging, and integrated search functionality.

packages/shared/src/utils/searchUtils.js

@@ -0,0 +1,47 @@
+const FILTER_RE = /\b(from|has|mentions|before|after|in|pinned):(\S+)/gi;
+
+export function parseFilters(rawQuery) {
+  const filters = {};
+  let textQuery = rawQuery;
+
+  let match;
+  while ((match = FILTER_RE.exec(rawQuery)) !== null) {
+    const key = match[1].toLowerCase();
+    const val = match[2];
+    switch (key) {
+      case 'from': filters.senderName = val; break;
+      case 'has':
+        if (val === 'link') filters.hasLink = true;
+        else if (val === 'file' || val === 'attachment') filters.hasFile = true;
+        else if (val === 'image') filters.hasImage = true;
+        else if (val === 'video') filters.hasVideo = true;
+        else if (val === 'mention') filters.hasMention = true;
+        break;
+      case 'mentions': filters.hasMention = true; filters.mentionName = val; break;
+      case 'before': filters.before = val; break;
+      case 'after': filters.after = val; break;
+      case 'in': filters.channelName = val; break;
+      case 'pinned': filters.pinned = val === 'true' || val === 'yes'; break;
+    }
+    textQuery = textQuery.replace(match[0], '');
+  }
+  FILTER_RE.lastIndex = 0;
+
+  return { textQuery: textQuery.trim(), filters };
+}
+
+/**
+ * Detects if the user is mid-typing a filter token.
+ * e.g. "hello from:par" → { prefix: 'from', partial: 'par' }
+ * e.g. "from:" → { prefix: 'from', partial: '' }
+ * Returns null if no active prefix is detected at the end of text.
+ */
+export function detectActivePrefix(text) {
+  if (!text) return null;
+  // Match a filter prefix at the end of the string, possibly with a partial value
+  const m = text.match(/\b(from|in|has|mentions):(\S*)$/i);
+  if (m) {
+    return { prefix: m[1].toLowerCase(), partial: m[2].toLowerCase() };
+  }
+  return null;
+}