// This file is part of midnightntwrk/example-counter.
// Copyright (C) Midnight Foundation
// SPDX-License-Identifier: Apache-2.0
// 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.

pragma language_version >= 0.20;

import CompactStandardLibrary;

// public state
export ledger round: Counter;

// transition function changing public state
export circuit increment(): [] {
  round.increment(1);
}

circuit ownedCheck(): Boolean { return true; }

export circuit signedIncrement(msg: Vector<1, Field>, sig: JubjubSchnorrSignature, pk: JubjubPoint): [] {
  assert(pk != default<JubjubPoint>, "nonidentity signer");
  assert(ownedCheck(), "owned public validation");
  round.increment(1);
}