/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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.google.android.vending.licensing;

import android.text.TextUtils;

import java.util.regex.Pattern;

/**
 * ResponseData from licensing server.
 */
public class ResponseData {

	public int responseCode;
	public int nonce;
	public String packageName;
	public String versionCode;
	public String userId;
	public long timestamp;
	/** Response-specific data. */
	public String extra;

	/**
     * Parses response string into ResponseData.
     *
     * @param responseData response data string
     * @throws IllegalArgumentException upon parsing error
     * @return ResponseData object
     */
	public static ResponseData parse(String responseData) {
		// Must parse out main response data and response-specific data.
		int index = responseData.indexOf(':');
		String mainData, extraData;
		if (-1 == index) {
			mainData = responseData;
			extraData = "";
		} else {
			mainData = responseData.substring(0, index);
			extraData = index >= responseData.length() ? "" : responseData.substring(index + 1);
		}

		String[] fields = TextUtils.split(mainData, Pattern.quote("|"));
		if (fields.length < 6) {
			throw new IllegalArgumentException("Wrong number of fields.");
		}

		ResponseData data = new ResponseData();
		data.extra = extraData;
		data.responseCode = Integer.parseInt(fields[0]);
		data.nonce = Integer.parseInt(fields[1]);
		data.packageName = fields[2];
		data.versionCode = fields[3];
		// Application-specific user identifier.
		data.userId = fields[4];
		data.timestamp = Long.parseLong(fields[5]);

		return data;
	}

	@Override
	public String toString() {
		return TextUtils.join("|", new Object[] {
										   responseCode, nonce, packageName, versionCode,
										   userId, timestamp });
	}
}
