1 files changed, 102 insertions, 0 deletions
diff --git a/packages/shared-react/hooks/search-history.ts b/packages/shared-react/hooks/search-history.ts
new file mode 100644
index 00000000..bc3c4e3d
--- /dev/null
+++ b/packages/shared-react/hooks/search-history.ts
@@ -0,0 +1,102 @@
+import { useCallback, useEffect, useMemo, useState } from "react";
+import { z } from "zod";
+
+const searchHistorySchema = z.array(z.string());
+
+const BOOKMARK_SEARCH_HISTORY_KEY = "karakeep_search_history";
+const MAX_STORED_ITEMS = 50;
+
+class SearchHistoryUtil {
+  constructor(
+    private storage: {
+      getItem(key: string): Promise<string | null> | string | null;
+      setItem(key: string, value: string): Promise<void> | void;
+      removeItem(key: string): Promise<void> | void;
+    },
+  ) {}
+
+  async getSearchHistory(): Promise<string[]> {
+    try {
+      const rawHistory = await this.storage.getItem(
+        BOOKMARK_SEARCH_HISTORY_KEY,
+      );
+      if (rawHistory) {
+        const parsed = JSON.parse(rawHistory) as unknown;
+        const result = searchHistorySchema.safeParse(parsed);
+        if (result.success) {
+          return result.data;
+        }
+      }
+      return [];
+    } catch (error) {
+      console.error("Failed to parse search history:", error);
+      return [];
+    }
+  }
+
+  async addSearchTermToHistory(term: string): Promise<void> {
+    if (!term || term.trim().length === 0) {
+      return;
+    }
+    try {
+      const currentHistory = await this.getSearchHistory();
+      const filteredHistory = currentHistory.filter(
+        (item) => item.toLowerCase() !== term.toLowerCase(),
+      );
+      const newHistory = [term, ...filteredHistory];
+      const finalHistory = newHistory.slice(0, MAX_STORED_ITEMS);
+      await this.storage.setItem(
+        BOOKMARK_SEARCH_HISTORY_KEY,
+        JSON.stringify(finalHistory),
+      );
+    } catch (error) {
+      console.error("Failed to save search history:", error);
+    }
+  }
+
+  async clearSearchHistory(): Promise<void> {
+    try {
+      await this.storage.removeItem(BOOKMARK_SEARCH_HISTORY_KEY);
+    } catch (error) {
+      console.error("Failed to clear search history:", error);
+    }
+  }
+}
+
+export function useSearchHistory(adapter: {
+  getItem(key: string): Promise<string | null> | string | null;
+  setItem(key: string, value: string): Promise<void> | void;
+  removeItem(key: string): Promise<void> | void;
+}) {
+  const [history, setHistory] = useState<string[]>([]);
+  const searchHistoryUtil = useMemo(() => new SearchHistoryUtil(adapter), []);
+
+  const loadHistory = useCallback(async () => {
+    const storedHistory = await searchHistoryUtil.getSearchHistory();
+    setHistory(storedHistory);
+  }, [searchHistoryUtil]);
+
+  useEffect(() => {
+    loadHistory();
+  }, [loadHistory]);
+
+  const addTerm = useCallback(
+    async (term: string) => {
+      await searchHistoryUtil.addSearchTermToHistory(term);
+      await loadHistory();
+    },
+    [searchHistoryUtil, loadHistory],
+  );
+
+  const clearHistory = useCallback(async () => {
+    await searchHistoryUtil.clearSearchHistory();
+    setHistory([]);
+  }, [searchHistoryUtil]);
+
+  return {
+    history,
+    addTerm,
+    clearHistory,
+    refreshHistory: loadHistory,
+  };
+}