/**
* Simple in-memory cache for page title -> UID mappings.
* Pages are stable entities that rarely get deleted, making them safe to cache.
* This reduces redundant API queries when looking up the same page multiple times.
*/
class PageUidCache {
private cache = new Map<string, string>(); // title (lowercase) -> UID
/**
* Get a cached page UID by title.
* @param title - Page title (case-insensitive)
* @returns The cached UID or undefined if not cached
*/
get(title: string): string | undefined {
return this.cache.get(title.toLowerCase());
}
/**
* Cache a page title -> UID mapping.
* @param title - Page title (will be stored lowercase)
* @param uid - Page UID
*/
set(title: string, uid: string): void {
this.cache.set(title.toLowerCase(), uid);
}
/**
* Check if a page title is cached.
* @param title - Page title (case-insensitive)
*/
has(title: string): boolean {
return this.cache.has(title.toLowerCase());
}
/**
* Called when a page is created - immediately add to cache.
* @param title - Page title
* @param uid - Page UID
*/
onPageCreated(title: string, uid: string): void {
this.set(title, uid);
}
/**
* Clear the cache (useful for testing or session reset).
*/
clear(): void {
this.cache.clear();
}
/**
* Get the current cache size.
*/
get size(): number {
return this.cache.size;
}
}
// Singleton instance - shared across all operations
export const pageUidCache = new PageUidCache();
