// Copyright 2026 Tether Operations Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * Global counter tracking the worklet's loaded wallet. Bumped by
 * `WorkletLifecycleService.reset()` whenever it changes (delete, lock,
 * switch). Consumers snapshot `getEpoch()` at fetch kickoff and compare it
 * again after the fetch resolves, to detect whether the result is stale.
 */
let epoch = 0

/** Current worklet epoch. */
export function getEpoch(): number {
  return epoch
}

/** Bump the worklet epoch. Call only from WorkletLifecycleService.reset(). */
export function bumpEpoch(): void {
  epoch += 1
}