/*
# ==================================================================================
# Copyright (c) 2020 HCL Technologies Limited.
#
# 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.
# ==================================================================================
*/

#include "xapp_config.hpp"

string& XappSettings::operator[](const SettingName& theName){
    return theSettings[theName];
}

void XappSettings::loadCmdlineSettings(int argc, char **argv){

	   // Parse command line options to over ride
	  static struct option long_options[] =
	    {
	    		{"xappname", required_argument, 0, 'n'},
				{"xappid", required_argument, 0, 'x'},
				{"port", required_argument, 0, 'p'},
				{"threads", required_argument,    0, 't'},
				{"ves-interval", required_argument, 0, 'i'},
				{"gNodeB", required_argument, 0, 'g'}

	    };


	   while(1) {

		int option_index = 0;
		char c = getopt_long(argc, argv, "n:p:t:s:g:a:v:u:i:c:x:", long_options, &option_index);

	        if(c == -1){
		    break;
	         }

		switch(c)
		  {

		  case 'n':
		    theSettings[XAPP_NAME].assign(optarg);
		    break;

		  case 'p':
		    theSettings[BOUNCER_PORT].assign(optarg);
		    break;

		  case 't':
			theSettings[THREADS].assign(optarg);
		    mdclog_write(MDCLOG_INFO, "Number of threads set to %s from command line e\n", theSettings[THREADS].c_str());
		    break;


		  case 'x':
		    theSettings[XAPP_ID].assign(optarg);
		    mdclog_write(MDCLOG_INFO, "XAPP ID set to  %s from command line ", theSettings[XAPP_ID].c_str());
		    break;

		  case 'h':
		    usage(argv[0]);
		    exit(0);

		  default:
		    usage(argv[0]);
		    exit(1);
		  }
	   };

}

void XappSettings::loadDefaultSettings(){


		 if(theSettings[XAPP_NAME].empty()){
		  theSettings[XAPP_NAME] = DEFAULT_XAPP_NAME;
		  }

	  	  if(theSettings[XAPP_ID].empty()){
	  		  theSettings[XAPP_ID] = DEFAULT_XAPP_NAME; //for now xapp_id is same as xapp_name since single xapp instance.
	  	  }
	  	  if(theSettings[LOG_LEVEL].empty()){
	  		  theSettings[LOG_LEVEL] = DEFAULT_LOG_LEVEL;
	  	  }
	  	  if(theSettings[BOUNCER_PORT].empty()){
	  		  theSettings[BOUNCER_PORT] = DEFAULT_PORT;
	  	  }
	  	  if(theSettings[MSG_MAX_BUFFER].empty()){
	  		  theSettings[MSG_MAX_BUFFER] = DEFAULT_MSG_MAX_BUFFER;
	  	  }

	  	 if(theSettings[THREADS].empty()){
	  		  		  theSettings[THREADS] = DEFAULT_THREADS;
	  		  	  }


}

void XappSettings::loadEnvVarSettings(){

	  if (const char *env_xname = std::getenv("XAPP_NAME")){
		  theSettings[XAPP_NAME].assign(env_xname);
		  mdclog_write(MDCLOG_INFO,"Xapp Name set to %s from environment variable", theSettings[XAPP_NAME].c_str());
	  }
	  if (const char *env_xid = std::getenv("XAPP_NAME")){
		   theSettings[XAPP_ID].assign(env_xid);
		   mdclog_write(MDCLOG_INFO,"Xapp ID set to %s from environment variable", theSettings[XAPP_ID].c_str());
	  }

	  if (const char *env_ports = std::getenv("BOUNCER_PORT")){
		  theSettings[BOUNCER_PORT].assign(env_ports);
	 	  mdclog_write(MDCLOG_INFO,"Ports set to %s from environment variable", theSettings[BOUNCER_PORT].c_str());
	  }
	  if (const char *env_ports = std::getenv("MSG_MAX_BUFFER")){
	 		  theSettings[MSG_MAX_BUFFER].assign(env_ports);
	 	 	  mdclog_write(MDCLOG_INFO,"Ports set to %s from environment variable", theSettings[MSG_MAX_BUFFER].c_str());
	 	  }

}

void XappSettings::usage(char *command){
	std::cout <<"Usage : " << command << " " << std::endl;
	std::cout <<" --name[-n] xapp_instance_name "<< std::endl;
    std::cout <<" --port[-p] port to listen on e.g tcp:4561  "<< std::endl;
    std::cout << "--threads[-t] number of listener threads "<< std::endl ;

}