package com.anyun.exam.lib;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.os.RemoteException;
import android.text.TextUtils;


import com.anyun.basecommonlib.MyLog;

import java.util.LinkedList;

/**
 * MyApplication2
 * Created by lzw on 2019/9/19. 18:19:48
 * 邮箱：632393724@qq.com
 * All Rights Saved! Chongqing AnYun Tech co. LTD
 */
class SvrManager {
    private static final SvrManager ourInstance = new SvrManager();
    private static final String TAG = "SvrManager";
    private MyServiceConn conn;
    private Intent intent;
    private Context mContext;


    private IAYExamListener mCallback;
    //远程服务接口
    private IRemoteInterface remoteInterface;
    private int BIND_SUCC = 0;
    private int BIND_binderDied = -1;

    static SvrManager getInstance() {
        return ourInstance;
    }

    private SvrManager() {
    }
    /**
     * 检查远程服务是否可以使用
     * @return 可以用false，不可以用true
     */
    private boolean checkRemoteIsNull() {
        return remoteInterface==null?true:false;
    }
    /**
     * Binder断裂回调
     * 如果服务端进程由于某种异常原因停止
     */
    private IBinder.DeathRecipient mDeathRecipient = new IBinder.DeathRecipient() {
        @Override
        public void binderDied() {
            MyLog.e(TAG,"IBinder.DeathRecipient binderDied");
            if (mCallback != null){
                mCallback.bindStatus(BIND_binderDied);
            }
            if (remoteInterface == null){
                MyLog.e(TAG,"IBinder.DeathRecipient binderDied remoteInterface == null ,return");
                return;
            }
            remoteInterface.asBinder().unlinkToDeath(mDeathRecipient,0);
            remoteInterface = null;
            MyLog.i("检测到远程服务异常死亡，重新绑定");
            bindRemoteService(mContext);
        }
    };

    public void registerListener(IAYExamListener iayExamListener) {
        this.mCallback = iayExamListener;
    }

    public void add() {
        if (!checkRemoteIsNull()){
            try {
                remoteInterface.add();
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
    }

    public void sendCmd(int cmd,String s) {
        if (!checkRemoteIsNull()){
            try {
                remoteInterface.SendCmd(cmd,s);
                if(cmd == 0x8100){
                    MyLog.i(TAG,"CMD="+ String.format("0x%x",cmd) +" contentLength:"+(!TextUtils.isEmpty(s)?s.length():0));
                }else{

                    MyLog.i(TAG,"CMD="+ String.format("0x%x",cmd) +" content:"+(!TextUtils.isEmpty(s)?s:"null"));
                }
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }else{
            MyLog.i(TAG,"远程服务接口==null");
        }
    }

    class MyServiceConn implements ServiceConnection {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            remoteInterface = IRemoteInterface.Stub.asInterface(service);
            try {
                //设置死亡代理
                service.linkToDeath(mDeathRecipient,0);
                MyLog.i("绑定服务onServiceConnected");
                if(mCallback!=null){
                    mCallback.bindStatus(BIND_SUCC);
                }
                remoteInterface.registListener(RemoteCallback);
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
            MyLog.i("绑定服务失败onServiceDisconnected");
        }


    }
    public void bindRemoteService(Context mContext){
        this.mContext = mContext;
        intent = new Intent(mContext,RemoteService.class);
        conn = new MyServiceConn();
        mContext.bindService(intent,conn, Context.BIND_AUTO_CREATE);
    }

    public void unBindRemoteService(Context mContext){
        if (remoteInterface!=null && remoteInterface.asBinder().isBinderAlive()){
            try {
                MyLog.i("摧毁SDK，需要解绑远程回调");
                remoteInterface.unRegistListener(RemoteCallback);

            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
        MyLog.i("摧毁SDK，需要解绑远程服务");
        mContext.unbindService(conn);
        if (intent!=null){
            MyLog.i("摧毁SDK，需要停止远程服务");
            mContext.stopService(intent);
        }
    }

    /**
     * 远程服务回调通知客户端消息
     */
    IListenerInterface RemoteCallback = new IListenerInterface.Stub(){
        @Override
        public void onMessageArrived(int cmd, String json) throws RemoteException {

            if (mCallback != null){
                mCallback.callBackMsg(cmd, json);

            }
        }


    };

}