/*
 * Copyright 2017 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.jbpm.designer.taskforms;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;

import javax.enterprise.context.Dependent;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;

import org.eclipse.bpmn2.Definitions;
import org.kie.workbench.common.forms.bpmn.BPMNFormBuilderService;

@Dependent
public class BPMNFormBuilderManager {

    private List<BPMNFormBuilderService<Definitions>> formBuilders = new ArrayList<>();

    @Inject
    public BPMNFormBuilderManager(Instance<BPMNFormBuilderService<Definitions>> installedFormBuilders) {
        installedFormBuilders.iterator().forEachRemaining(formBuilder -> {
            formBuilders.add(formBuilder);
        });
    }

    public List<BPMNFormBuilderService<Definitions>> getFormBuilders() {
        return Collections.unmodifiableList(formBuilders);
    }

    public BPMNFormBuilderService<Definitions> getBuilderByFormType(String extension) {
        Optional<BPMNFormBuilderService<Definitions>> optional = formBuilders.stream().filter(builderService -> builderService.getFormExtension().equals(extension)).findFirst();
        if (optional.isPresent()) {
            return optional.get();
        }
        return null;
    }
}
