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/*
 * Copyright (c) 2017 Bixbit - Krzysztof Benedyczak All rights reserved.
 * See LICENCE.txt file for licensing information.
 */

package pl.edu.icm.unity.oauth.client.profile;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import net.minidev.json.JSONArray;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONValue;
import pl.edu.icm.unity.oauth.client.AttributeFetchResult;

/**
 * Utils for profile fetchers
 * 
 * @author P.Piernik
 *
 */
public class ProfileFetcherUtils
{

	public static AttributeFetchResult fetchFromJsonObject(JSONObject jsonObject)
	{
		return new AttributeFetchResult(convertToAttributes(jsonObject),
				convertToRawAttributes(jsonObject));
	}

	public static Map> convertToAttributes(JSONObject profile)
	{
		Map> ret = new HashMap<>();
		

		for (Entry entry : profile.entrySet())
		{
			if (entry.getValue() == null)
				continue;
			Object value = JSONValue.parse(entry.getValue().toString());
			if (value==null)
				continue;
			
			if (value instanceof JSONObject)
			{
				ret.put(entry.getKey(), Arrays.asList(value.toString()));

			} else if (value instanceof JSONArray)
			{
				ArrayList vList = new ArrayList<>();
				for (Object v : (JSONArray) value)
				{
					vList.add(v.toString());
				}

				ret.put(entry.getKey(), vList);
			} else
			{
				ret.put(entry.getKey(), Arrays.asList(value.toString()));
			}

		}
		return ret;
	}
	
	static JSONObject convertToRawAttributes(JSONObject toConvert)
	{
		JSONObject res = new JSONObject(toConvert);
		resolveNestedJsonType(res);
		return res;
	}

	private static void resolveNestedJsonType(JSONObject jsonObject)
	{
		for (Entry entry : jsonObject.entrySet())
		{
			if (entry.getValue() == null)
				continue;
			Object value = JSONValue.parse(entry.getValue().toString());
			if (value instanceof JSONObject)
			{
				JSONObject jobject = (JSONObject) value;
				entry.setValue(jobject);
				resolveNestedJsonType(jobject);
			} else if (value instanceof JSONArray)
			{
				JSONArray jarray = (JSONArray) value;
				entry.setValue(jarray);
				resolveNestedJsonType(jarray);
			}
		}
	}

	private static void resolveNestedJsonType(JSONArray array)
	{
		
		ArrayList