/*
 *  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
 *
 *    https://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 grails.doc.asciidoc

import groovy.transform.InheritConstructors

import org.asciidoctor.Asciidoctor
import org.asciidoctor.Attributes
import org.asciidoctor.Options
import org.asciidoctor.SafeMode
import org.radeox.api.engine.context.RenderContext

import grails.doc.DocEngine

import static org.asciidoctor.Asciidoctor.Factory.create

/**
 * A DocEngine implementation that uses Asciidoctor to render pages
 *
 * @author Graeme Rocher
 * @since 3.2.0
 */
@InheritConstructors
class AsciiDocEngine extends DocEngine {

    Asciidoctor asciidoctor = create()
    Map attributes = [
        'imagesdir': '../img',
        'source-highlighter': 'coderay',
        'icons': 'font'
    ]
    @Override
    String render(String content, RenderContext context) {
        Attributes attrs = Attributes.builder().build()
        attrs.setAttributes(attributes)

        def optionsBuilder = Options.builder()
            .standalone(false)
            .attributes(attrs)

        if (attributes.containsKey('safe')) {
            optionsBuilder.safe(SafeMode.valueOf(attributes.get('safe').toString()))
        }
        asciidoctor.convert(content, optionsBuilder.build())
    }
}
