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CDN library
There is a newer version: 1.14.6
/*
 * Copyright (c) 2021 dzikoysk
 *
 * 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 net.dzikoysk.cdn.module;

import net.dzikoysk.cdn.CdnUtils;
import net.dzikoysk.cdn.model.Element;
import net.dzikoysk.cdn.model.Entry;
import net.dzikoysk.cdn.model.Section;
import net.dzikoysk.cdn.model.Piece;
import org.jetbrains.annotations.Nullable;
import panda.std.Blank;
import panda.std.Result;
import panda.std.stream.PandaStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;

import static panda.std.Result.ok;

public final class Modules implements CdnModule {

    private final List modules = new ArrayList<>();

    public boolean isEmpty() {
        return modules.isEmpty();
    }

    public void addModule(CdnModule module) {
        modules.add(module);
    }

    @Override
    public String convertToCdn(String source) {
        return CdnUtils.process(modules, source, CdnModule::convertToCdn);
    }

    @Override
    public void renderDescription(StringBuilder output, String indentation, String description) {
        modules.forEach(module -> module.renderDescription(output, indentation, description));
    }

    @Override
    public void renderSectionOpening(StringBuilder output, String indentation, Section section) {
        modules.forEach(module -> module.renderSectionOpening(output, indentation, section));
    }

    @Override
    public void renderSectionEnding(StringBuilder output, String indentation, @Nullable Section parent, Section section) {
        modules.forEach(module -> module.renderSectionEnding(output, indentation, parent, section));
    }

    @Override
    public Element visitArrayValue(Element element) {
        return CdnUtils.process(modules, element, CdnModule::visitArrayValue);
    }

    @Override
    public Element resolveArrayValue(Element element) {
        return CdnUtils.process(modules, element, CdnModule::resolveArrayValue);
    }

    @Override
    public boolean resolveArray(Stack sections, Piece value) {
        return CdnUtils.process(modules, false, (module, previousValue) -> previousValue || module.resolveArray(sections, value));
    }

    @Override
    public Result renderEntry(StringBuilder output, String indentation, @Nullable Section parent, Entry element) {
        return PandaStream.of(modules)
                .map(module -> module.renderEntry(output, indentation, parent, element))
                .filter(Result::isOk)
                .head()
                .orElseGet(ok());
    }

    @Override
    public Result renderPiece(StringBuilder output, String indentation, @Nullable Section parent, Piece element) {
        return PandaStream.of(modules)
                .map(module -> module.renderPiece(output, indentation, parent, element))
                .filter(Result::isOk)
                .head()
                .orElseGet(ok());
    }

}