/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * Licensed under the Apache License Version 2.0 with LLVM Exceptions
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *   https://llvm.org/LICENSE.txt
 *
 * 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.
 */
#include <unifex/repeat_effect_until.hpp>

#include <unifex/scheduler_concepts.hpp>
#include <unifex/sync_wait.hpp>
#include <unifex/timed_single_thread_context.hpp>
#include <unifex/just.hpp>
#include <unifex/then.hpp>
#include <unifex/sequence.hpp>
#include <unifex/stop_when.hpp>
#include <unifex/just_from.hpp>

#include <chrono>
#include <iostream>

#include <gtest/gtest.h>

using namespace unifex;
using namespace std::chrono;
using namespace std::chrono_literals;

TEST(RepeatEffect, Smoke) {
  timed_single_thread_context context;

  auto scheduler = context.get_scheduler();

  std::atomic<int> count{0};

  sync_wait(
    stop_when(
      repeat_effect(
        sequence(
          schedule_after(scheduler, 50ms), 
          just_from([&]{ ++count; }))),
      schedule_after(scheduler, 500ms)));

  EXPECT_GT(count.load(), 1);
}

TEST(RepeatEffect, Pipeable) {
  timed_single_thread_context context;

  auto scheduler = context.get_scheduler();

  std::atomic<int> count{0};

  sequence(
    schedule_after(scheduler, 50ms), 
    just_from([&]{ ++count; }))
    | repeat_effect()
    | stop_when(schedule_after(scheduler, 500ms))
    | sync_wait();

  EXPECT_GT(count.load(), 1);
}