/*
 * Copyright 2022 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.kogito.process.impl;

import java.util.Collection;
import java.util.HashSet;
import java.util.NoSuchElementException;

import org.kie.kogito.internal.process.runtime.KogitoWorkItemHandler;
import org.kie.kogito.process.WorkItemHandlerConfig;

public class MultiWorkItemHandlerConfig implements WorkItemHandlerConfig {

    private final Iterable<WorkItemHandlerConfig> workItemHandlerConfigs;

    public MultiWorkItemHandlerConfig(Iterable<WorkItemHandlerConfig> workItemHandlerConfigs) {
        this.workItemHandlerConfigs = workItemHandlerConfigs;
    }

    @Override
    public KogitoWorkItemHandler forName(String name) {
        RuntimeException trackException = null;
        for (WorkItemHandlerConfig workItemHandlerConfig : workItemHandlerConfigs) {
            try {
                return workItemHandlerConfig.forName(name);
            } catch (RuntimeException ex) {
                trackException = ex;
            }
        }
        throw trackException != null ? trackException : new NoSuchElementException("Cannot find work item for name " + name);
    }

    @Override
    public Collection<String> names() {
        Collection<String> names = new HashSet<>();
        workItemHandlerConfigs.forEach(w -> names.addAll(w.names()));
        return names;
    }
}
