/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.isis.core.metamodel.facets.properties.propertylayout;

import java.util.List;
import java.util.Map;

import org.apache.isis.applib.annotation.PromptStyle;
import org.apache.isis.applib.annotation.PropertyLayout;
import org.apache.isis.config.IsisConfiguration;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facets.object.promptStyle.PromptStyleConfiguration;
import org.apache.isis.core.metamodel.facets.object.promptStyle.PromptStyleFacet;
import org.apache.isis.core.metamodel.facets.object.promptStyle.PromptStyleFacetAbstract;
import org.apache.isis.core.metamodel.facets.object.promptStyle.PromptStyleFacetAsConfigured;

public class PromptStyleFacetForPropertyLayoutAnnotation extends PromptStyleFacetAbstract {

    private final PromptStyle promptStyle;

    public PromptStyleFacetForPropertyLayoutAnnotation(final PromptStyle promptStyle, final FacetHolder holder) {
        super( holder );
        this.promptStyle = promptStyle;
    }

    public static PromptStyleFacet create(
            final List<PropertyLayout> propertyLayouts,
            final IsisConfiguration configuration,
            final FacetHolder holder) {

        return propertyLayouts.stream()
                .map(PropertyLayout::promptStyle)
                .filter(promptStyle -> promptStyle != PromptStyle.NOT_SPECIFIED)
                .findFirst()
                .map(promptStyle -> {

                    switch (promptStyle) {
                    case DIALOG:
                    case DIALOG_MODAL:
                    case DIALOG_SIDEBAR:
                    case INLINE:
                        return new PromptStyleFacetForPropertyLayoutAnnotation(promptStyle, holder);
                    case INLINE_AS_IF_EDIT:
                        return new PromptStyleFacetForPropertyLayoutAnnotation(PromptStyle.INLINE, holder);

                    case AS_CONFIGURED:

                        // do not replace
                        if (holder.containsDoOpFacet(PromptStyleFacet.class)) {
                            return null;
                        }

                        promptStyle = PromptStyleConfiguration.parse(configuration);
                        return new PromptStyleFacetAsConfigured(promptStyle, holder);
                    default:
                    }
                    throw new IllegalStateException("promptStyle '" + promptStyle + "' not recognised");
                })
                .orElseGet(() -> {

                    // do not replace
                    if (holder.containsDoOpFacet(PromptStyleFacet.class)) {
                        return null;
                    }

                    PromptStyle promptStyle = PromptStyleConfiguration.parse(configuration);
                    return new PromptStyleFacetAsConfigured(promptStyle, holder);
                });
    }

    @Override
    public PromptStyle value() {
        return promptStyle;
    }

    @Override public void appendAttributesTo(final Map<String, Object> attributeMap) {
        super.appendAttributesTo(attributeMap);
        attributeMap.put("promptStyle", promptStyle);
    }

}
