/*
 * MIT License
 *
 * Copyright (c) 2016 xiongziliang <771730766@qq.com>
 *
 * This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <map>
#include <signal.h>
#include <iostream>
#include "Common/config.h"
#include "Rtsp/UDPServer.h"
#include "Rtsp/RtspSession.h"
#include "Rtmp/RtmpSession.h"
#include "Http/HttpSession.h"
#include "Shell/ShellSession.h"
#include "Util/MD5.h"

#ifdef ENABLE_OPENSSL
#include "Util/SSLBox.h"
#include "Http/HttpsSession.h"
#endif//ENABLE_OPENSSL

#include "Util/File.h"
#include "Util/logger.h"
#include "Util/onceToken.h"
#include "Network/TcpServer.h"
#include "Poller/EventPoller.h"
#include "Thread/WorkThreadPool.h"
#include "Device/PlayerProxy.h"

using namespace std;
using namespace ZL::DEV;
using namespace ZL::Util;
using namespace ZL::Http;
using namespace ZL::Rtsp;
using namespace ZL::Rtmp;
using namespace ZL::Shell;
using namespace ZL::Thread;
using namespace ZL::Network;


#define REALM "realm_zlmedaikit"

static onceToken s_token([](){
	NoticeCenter::Instance().addListener(nullptr,Config::Broadcast::kBroadcastOnGetRtspRealm,[](BroadcastOnGetRtspRealmArgs){
		if(string("1") == stream ){
			// live/1需要认证
			EventPoller::Instance().async([invoker](){
				//该流需要认证，并且设置realm
				invoker(REALM);
			});
		}else{
			//我们异步执行invoker。
			//有时我们要查询redis或数据库来判断该流是否需要认证，通过invoker的方式可以做到完全异步
			EventPoller::Instance().async([invoker](){
				//该流我们不需要认证
				invoker("");
			});
		}
	});

	NoticeCenter::Instance().addListener(nullptr,Config::Broadcast::kBroadcastOnRtspAuth,[](BroadcastOnRtspAuthArgs){
		InfoL << "用户：" << user_name <<  (must_no_encrypt ?  " Base64" : " MD5" )<< " 方式登录";
		string user = user_name;
		//假设我们异步读取数据库
		EventPoller::Instance().async([must_no_encrypt,invoker,user](){
			if(user == "test0"){
				//假设数据库保存的是明文
				invoker(false,"pwd0");
				return;
			}

			if(user == "test1"){
				//假设数据库保存的是密文
				auto encrypted_pwd = MD5(user + ":" + REALM + ":" + "pwd1").hexdigest();
				invoker(true,encrypted_pwd);
				return;
			}
			if(user == "test2" && must_no_encrypt){
				//假设登录的是test2,并且以base64方式登录，此时我们提供加密密码，那么会导致认证失败
				//可以通过这个方式屏蔽base64这种不安全的加密方式
				invoker(true,"pwd2");
				return;
			}

			//其他用户密码跟用户名一致
			invoker(false,user);
		});
	});
}, nullptr);

int main(int argc,char *argv[]){
	//设置退出信号处理函数
	signal(SIGINT, [](int){EventPoller::Instance().shutdown();});
	//设置日志
	Logger::Instance().add(std::make_shared<ConsoleChannel>("stdout", LTrace));
    Logger::Instance().setWriter(std::make_shared<AsyncLogWriter>());
	//加载配置文件，如果配置文件不存在就创建一个
	Config::loadIniConfig();
	//这里是拉流地址，支持rtmp/rtsp协议，负载必须是H264+AAC
	//如果是其他不识别的音视频将会被忽略(譬如说h264+adpcm转发后会去除音频)
	auto urlList = {"rtmp://live.hkstv.hk.lxdns.com/live/hks",
					"rtmp://live.hkstv.hk.lxdns.com/live/hks"
					//rtsp链接支持输入用户名密码
					/*"rtsp://admin:jzan123456@192.168.0.122/"*/};
	 map<string , PlayerProxy::Ptr> proxyMap;
	 int i=0;
	 for(auto &url : urlList){
		 //PlayerProxy构造函数前两个参数分别为应用名（app）,流id（streamId）
		 //比如说应用为live，流id为0，那么直播地址为:
		 //http://127.0.0.1/live/0/hls.m3u8
		 //rtsp://127.0.0.1/live/0
		 //rtmp://127.0.0.1/live/0
		 //录像地址为(当然vlc不支持这么多级的rtmp url，可以用test_player测试rtmp点播):
		 //http://127.0.0.1/record/live/0/2017-04-11/11-09-38.mp4
		 //rtsp://127.0.0.1/record/live/0/2017-04-11/11-09-38.mp4
		 //rtmp://127.0.0.1/record/live/0/2017-04-11/11-09-38.mp4
		 PlayerProxy::Ptr player(new PlayerProxy(DEFAULT_VHOST,"live",to_string(i).data()));
		 //指定RTP over TCP(播放rtsp时有效)
		 (*player)[RtspPlayer::kRtpType] = PlayerBase::RTP_TCP;
		 //开始播放，如果播放失败或者播放中止，将会自动重试若干次，重试次数在配置文件中配置，默认一直重试
		 player->play(url);
		 //需要保存PlayerProxy，否则作用域结束就会销毁该对象
		 proxyMap.emplace(to_string(i),player);
		 ++i;
	 }

#ifdef ENABLE_OPENSSL
	//请把证书"test_server.pem"放置在本程序可执行程序同目录下
	try{
		//加载证书，证书包含公钥和私钥
		SSL_Initor::Instance().loadServerPem((exePath() + ".pem").data());
	}catch(...){
		FatalL << "请把证书:" << (exeName() + ".pem") << "放置在本程序可执行程序同目录下:" << exeDir() << endl;
		proxyMap.clear();
		return 0;
	}
#endif //ENABLE_OPENSSL

	//简单的telnet服务器，可用于服务器调试，但是不能使用23端口，否则telnet上了莫名其妙的现象
	//测试方法:telnet 127.0.0.1 8023
	//输入用户名和密码登录(user:test,pwd:123456)，输入help命令查看帮助
	TcpServer<ShellSession>::Ptr shellSrv(new TcpServer<ShellSession>());
	ShellSession::addUser("test", "123456");
	shellSrv->start(mINI::Instance()[Config::Shell::kPort]);
	//开启rtsp/rtmp/http服务器
	TcpServer<RtspSession>::Ptr rtspSrv(new TcpServer<RtspSession>());
	TcpServer<RtmpSession>::Ptr rtmpSrv(new TcpServer<RtmpSession>());
	TcpServer<HttpSession>::Ptr httpSrv(new TcpServer<HttpSession>());
	rtspSrv->start(mINI::Instance()[Config::Rtsp::kPort]);//默认554
	rtmpSrv->start(mINI::Instance()[Config::Rtmp::kPort]);//默认1935
	httpSrv->start(mINI::Instance()[Config::Http::kPort]);//默认80

#ifdef ENABLE_OPENSSL
    //如果支持ssl，还可以开启https服务器
	TcpServer<HttpsSession>::Ptr httpsSrv(new TcpServer<HttpsSession>());
	httpsSrv->start(mINI::Instance()[Config::Http::kSSLPort]);//默认443
#endif //ENABLE_OPENSSL

	EventPoller::Instance().runLoop();
	//销毁拉流客户端
	proxyMap.clear();
	//销毁服务器
	shellSrv.reset();
	rtspSrv.reset();
	rtmpSrv.reset();
	httpSrv.reset();

#ifdef ENABLE_OPENSSL
	httpsSrv.reset();
#endif //ENABLE_OPENSSL

	//rtsp服务器用到udp端口分配器了
	UDPServer::Destory();
	//TcpServer用到了WorkThreadPool
	WorkThreadPool::Destory();
    AsyncTaskThread::Destory();
	EventPoller::Destory();
	Logger::Destory();
	return 0;
}