package com.gh.common.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import org.json.JSONException;
import org.json.JSONObject;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

import com.gh.common.constant.Config;

public class TokenUtils {

	// 获取用户token
	public static synchronized String getToken(Context context) {
		SharedPreferences sp = context.getSharedPreferences(Config.PREFERENCE,
				Context.MODE_PRIVATE);
		String token = sp.getString("token", null);
		if (token != null) {
			long expire = sp.getLong("token_expire", 0) * 1000 - 10 * 1000;
			long time = System.currentTimeMillis();
			// 判断token是否过期
			if (time < expire) {
				return token;
			}
		}

//		Map<String, String> params = DeviceUtils.getDeviceParams(context);
		Map<String, String> params = new HashMap<String, String>();
		String url = Config.HOST + "v1d45/token/visit";
		
		//判断是否已登录
		if (sp.getBoolean("isLogin", false)) {
			// 已登录，获取用户名和密码自动登录
			String username = sp.getString("username", null);
			String password = sp.getString("password", null);
			if (username == null || password == null) {
				url = Config.HOST + "v2/token/user?time=" + System.currentTimeMillis();
				params.put("username", username);
				try {
					String s = RSEUtils.encryptByPublic(password + username + System.currentTimeMillis() / 1000);
					Utils.log("加密 = " + s);
					params.put("password", s);
				} catch (Exception e) {
					e.printStackTrace();
				}
			} else {
				url = Config.HOST + "v2/token/mobile?time=" + System.currentTimeMillis();
				String mobile = sp.getString("mobile", null);
				params.put("mobile_number", mobile);
			}
		}

		try {
			JSONObject body = new JSONObject(params);
			HttpURLConnection connection = (HttpURLConnection) new URL(url)
					.openConnection();
			connection.setDoInput(true);
			connection.setDoOutput(true);
			connection.setConnectTimeout(5000);
			connection.setRequestMethod("POST");
			
			connection.addRequestProperty("Content-Type", "application/json; charset=utf-8");
			connection.addRequestProperty("Device", DeviceUtils.getDeviceHeader(context));

			connection.connect();

			OutputStreamWriter outputStream = new OutputStreamWriter(
					connection.getOutputStream(), "utf-8");
			outputStream.write(body.toString());
			outputStream.flush();
			outputStream.close();
			
			if (connection.getResponseCode() == 200) {
				BufferedReader reader = new BufferedReader(
						new InputStreamReader(connection.getInputStream()));
				StringBuilder builder = new StringBuilder();
				String line;
				while ((line = reader.readLine()) != null) {
					builder.append(line);
				}
				reader.close();
				try {
					JSONObject jsonObject = new JSONObject(builder.toString());
					Editor editor = sp.edit();
					editor.putString("token", jsonObject.getString("token"));
					editor.putLong("token_expire", jsonObject.getLong("expire"));
					editor.apply();
					return jsonObject.getString("token");
				} catch (JSONException e) {
					e.printStackTrace();
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return null;
	}

}