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/*
 * Copyright 2022 dmfs GmbH
 *
 *
 * 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.
 *
 */

package org.saynotobugs.confidence.rxjava3.rxexpectation.internal;

import org.saynotobugs.confidence.Assessment;
import org.saynotobugs.confidence.Description;
import org.saynotobugs.confidence.Quality;
import org.saynotobugs.confidence.assessment.FailPrepended;
import org.saynotobugs.confidence.description.NumberDescription;
import org.saynotobugs.confidence.description.Spaced;
import org.saynotobugs.confidence.description.Text;
import org.saynotobugs.confidence.rxjava3.RxTestAdapter;

import java.util.Collection;


public final class Emits implements Quality>
{

    private final int mEmissionCount;
    private final Quality> mEmissionQualities;


    public Emits(int emissionCount, Quality> emissionQualities)
    {
        mEmissionCount = emissionCount;
        mEmissionQualities = emissionQualities;
    }


    @Override
    public Assessment assessmentOf(RxTestAdapter candidate)
    {
        candidate.awaitNext(mEmissionCount);
        Collection values = candidate.newValues(mEmissionCount);
        Assessment result = mEmissionQualities.assessmentOf(values);
        if (result.isSuccess())
        {
            candidate.ack(values.size());
        }
        return new FailPrepended(
            new Spaced(
                new Text("emitted"),
                new NumberDescription(values.size()),
                new Text("items")),
            result);
    }


    @Override
    public Description description()
    {
        return new Spaced(
            new Text("emits"),
            new NumberDescription(mEmissionCount),
            new Text("items"),
            mEmissionQualities.description());
    }
}