package com.unity3d.player;

import android.app.Activity;
import android.util.Log;
import android.widget.Toast;

import com.google.gson.Gson;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Map;

public class UnityHttpUtils {

	private final static String PARAMETER_SEPARATOR = "&";
	private final static String NAME_VALUE_SEPARATOR = "=";

	/**
	 * Http GET 请求
	 * 
	 * @param urlStr
	 * @param params
	 * @return
	 */
	public static String httpGet(Activity activity,String urlStr, Map<String, String> params) {

		String result = null;
		URL url = null;
		HttpURLConnection connection = null;
		InputStreamReader in = null;
		try {

			String paramsEncoded = "";
			if (params != null) {
				paramsEncoded = urlParamsFormat(params, "UTF-8");
			}

			String fullUrl = urlStr + "?" + paramsEncoded;

			Log.d("UnityHttp", "the fullAuthUrl is " + fullUrl);

			url = new URL(fullUrl);
			connection = (HttpURLConnection) url.openConnection();
			connection.setReadTimeout(120000);
			connection.setConnectTimeout(60000);
			Log.d("UnityHttp", "open connection success");
			
			if(connection.getResponseCode() == HttpURLConnection.HTTP_OK){
				in = new InputStreamReader(connection.getInputStream(), "UTF-8");
				BufferedReader bufferedReader = new BufferedReader(in);
				StringBuffer strBuffer = new StringBuffer();
				String line = null;
				while ((line = bufferedReader.readLine()) != null) {
					strBuffer.append(line);
				}
				result = strBuffer.toString();
				bufferedReader.close();
			}else{
				Toast.makeText(activity
						,
						"Net connect failed! error code:"
								+ connection.getResponseCode() + "error msg:"
								+ connection.getResponseMessage(),
						Toast.LENGTH_LONG).show();
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (connection != null) {
				connection.disconnect();
			}
			if (in != null) {
				try {
					in.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}

		}
		return result;
	}

	/**
	 * Http POST 请求
	 * 
	 * @param urlStr
	 * @param params
	 * @return
	 */
	public static String httpPost(Activity activity, String urlStr, Map<String, String> params) {

		String result = null;
		URL url = null;
		HttpURLConnection connection = null;
		InputStreamReader in = null;
		try {

			String paramsEncoded = "";
			if (params != null) {
				paramsEncoded = urlParamsFormat(params, "UTF-8");
			}
			Log.d("UnityHttp", "the post url is " + urlStr + "\n paramsEncoded:"
					+ paramsEncoded);
			url = new URL(urlStr);
			connection = (HttpURLConnection) url.openConnection();
			connection.setDoInput(true);
			connection.setDoOutput(true);
			connection.setRequestMethod("POST");
			connection.setRequestProperty("Content-Type",
					"application/x-www-form-urlencoded");
			connection.setRequestProperty("Charset", "utf-8");
			connection.setReadTimeout(120000);
			connection.setConnectTimeout(60000);
			
			DataOutputStream dop = new DataOutputStream(
					connection.getOutputStream());
			dop.writeBytes(paramsEncoded);
			dop.flush();
			dop.close();
			
			if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {

				in = new InputStreamReader(connection.getInputStream(), "UTF-8");
				BufferedReader bufferedReader = new BufferedReader(in);
				StringBuffer strBuffer = new StringBuffer();
				String line = null;
				while ((line = bufferedReader.readLine()) != null) {
					strBuffer.append(line);
				}
				result = strBuffer.toString();

				Log.d("UnityHttp", "result:" + result);
				bufferedReader.close();
			} else {
				final int responseCode = connection.getResponseCode();
				final String responseMessage = connection.getResponseMessage();
                new Thread() {
                    @Override
                    public void run() {
                        Toast.makeText(
                                activity,
                                "Net connect failed! error code:"
                                        + responseCode + "error msg:"
                                        + responseMessage,
                                Toast.LENGTH_LONG).show();
                    }
                }.start();

			}

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (connection != null) {
				connection.disconnect();
			}
			if (in != null) {
				try {
					in.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}

		}
		return result;
	}

	/**
	 * Returns a String that is suitable for use as an
	 * application/x-www-form-urlencoded list of parameters in an HTTP PUT or
	 * HTTP POST.
	 * 
	 * @param params map<String, String>参数
	 * @param charset 编码类型 UTF-8
	 * @return String
	 * @throws UnsupportedEncodingException 不支持的编码类型
	 */
	private static String urlParamsFormat(Map<String, String> params,
                                          String charset) throws UnsupportedEncodingException {
		final StringBuilder sb = new StringBuilder();
		for (Map.Entry<String, String> entry : params.entrySet()) {
			final String encodedName = URLEncoder.encode(entry.getKey(), charset);
			final String encodedValue = URLEncoder.encode(entry.getValue(),
					charset);
			if (sb.length() > 0) {
				sb.append(PARAMETER_SEPARATOR);
			}
			sb.append(encodedName).append(NAME_VALUE_SEPARATOR)
					.append(encodedValue);

		}
		return sb.toString();
	}

}