import { IncrementalCache } from '@opennextjs/aws/types/overrides';

/**
 * Cimplify incremental-cache override for Workers for Platforms storefronts.
 *
 * Replaces opennext's stale-while-revalidate model with an evict-on-invalidate
 * model that fits Cimplify's event-driven domain:
 *
 *   - `get`: standard R2 fetch. Returns the cached value or null.
 *   - `set`: reserves a tag→cache_key index update in the shared
 *     `CIMPLIFY_PATH_INDEX` Durable Object, writes the value to R2, then
 *     confirms that no eviction crossed the write. A tagged value is never
 *     cached unless its eviction index is durable and its reservation remains
 *     current.
 *   - `delete`: standard R2 delete (called by opennext on explicit invalidate;
 *     also called by us from the Rust EvictionDispatcher path on tag events).
 *
 * The Rust EvictionDispatcher signals the tag-cache worker on bus events. That
 * worker fences new writes, reads the index, deletes matching R2 entries, and
 * purges the dispatch worker's per-script HTML cache tag. A write whose
 * reservation was crossed by that fence deletes its just-written R2 object.
 * There is no SWR "background refresh" path: opennext's queue and `isStale`
 * checks are no-ops, and an R2 miss makes the next request synchronously
 * re-render.
 *
 * Why this exists: WfP user workers cannot have `WORKER_SELF_REFERENCE`,
 * which is the binding every built-in opennext queue requires. Rather than
 * recreate SWR via self-fetch tricks, we drop SWR for our domain — Cimplify
 * always knows when data changes (every catalog mutation flows through the
 * bus), so timer-based refresh adds no value.
 */

declare const evictIncrementalCache: IncrementalCache;

export { evictIncrementalCache };