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Android binary resources read/write library
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/*
 *  Copyright (C) 2022 github.com/REAndroid
 *
 *  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 com.reandroid.arsc.chunk;

import com.reandroid.arsc.array.LibraryInfoArray;
import com.reandroid.arsc.header.LibraryHeader;
import com.reandroid.arsc.value.LibraryInfo;

import java.util.Iterator;

public class LibraryBlock extends Chunk implements Iterable {
    private final LibraryInfoArray mLibraryInfoArray;
    public LibraryBlock() {
        super(new LibraryHeader(),1);
        LibraryHeader header = getHeaderBlock();
        this.mLibraryInfoArray = new LibraryInfoArray(header.getCountItem());

        addChild(mLibraryInfoArray);
    }

    public boolean containsLibraryInfo(String packageName){
        if(isEmpty()){
            return false;
        }
        return getLibraryInfoArray().containsLibraryInfo(packageName);
    }
    public LibraryInfoArray getLibraryInfoArray(){
        return mLibraryInfoArray;
    }
    public void addLibraryInfo(LibraryBlock libraryBlock){
        if(libraryBlock==null){
            return;
        }
        for(LibraryInfo info:libraryBlock.getLibraryInfoArray().listItems()){
            addLibraryInfo(info);
        }
    }
    public void addLibraryInfo(LibraryInfo info){
        if(info == null){
            return;
        }
        getLibraryInfoArray().add(info);
        getHeaderBlock().getCountItem().set(mLibraryInfoArray.size());
    }
    public LibraryInfo newLibraryInfo() {
        return mLibraryInfoArray.createNext();
    }
    public int size() {
        return mLibraryInfoArray.size();
    }
    @Override
    public Iterator iterator() {
        return getLibraryInfoArray().iterator(true);
    }
    @Override
    public boolean isNull(){
        return isEmpty();
    }
    public boolean isEmpty(){
        return !iterator().hasNext();
    }
    public void setLibraryCount(int count){
        getHeaderBlock().getCountItem().set(count);
        mLibraryInfoArray.setSize(count);
    }
    @Override
    protected void onChunkRefreshed() {
        getHeaderBlock().getCountItem().set(mLibraryInfoArray.size());
    }

    public void merge(LibraryBlock libraryBlock){
        if(libraryBlock == null || libraryBlock == this){
            return;
        }
        getLibraryInfoArray().merge(libraryBlock.getLibraryInfoArray());
    }
}