StateStorage.java

/*
 * Copyright 2014 Roque Pinel
 *
 * 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 cc.pinel.mangue.storage;

import java.io.IOException;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

import com.amazon.kindle.kindlet.KindletContext;

public class StateStorage extends AbstractStorage {
	public StateStorage(KindletContext context) {
		super(context, "state.json");
	}

	public String getChapter(String mangaId) {
		String chapterNumber = null;

		JSONArray jsonMangas = null;

		try {
			jsonMangas = (JSONArray) readJSON().get("mangas");
		} catch (Exception e) {
			// ignored
		}
		if (jsonMangas == null)
			jsonMangas = new JSONArray();

		JSONObject jsonManga = findManga(jsonMangas, mangaId);
		if (jsonManga != null)
			chapterNumber = jsonManga.get("chapterNumber").toString();

		return chapterNumber;
	}

	public void setChapter(String mangaId, String chapterNumber) throws IOException {
		JSONObject json = null;

		try {
			json = readJSON();
		} catch (Exception e) {
			// ignored
		}
		if (json == null)
			json = new JSONObject();

		JSONArray jsonMangas = (JSONArray) json.get("mangas");
		if (jsonMangas == null) {
			jsonMangas = new JSONArray();
			json.put("mangas", jsonMangas);
		}

		JSONObject jsonManga = findManga(jsonMangas, mangaId);
		if (jsonManga == null) {
			jsonManga = new JSONObject();
			jsonManga.put("id", mangaId);
			jsonMangas.add(jsonManga);
		}
		jsonManga.put("chapterNumber", chapterNumber);

		writeJSON(json);
	}
}