/* 
    File: simpleclient.C

    Author: R. Bettati
            Department of Computer Science
            Texas A&M University
    Date  : 2013/01/31

    Simple client main program for MP3 in CSCE 313
*/

/*--------------------------------------------------------------------------*/
/* DEFINES */
/*--------------------------------------------------------------------------*/

    /* -- (none) -- */

/*--------------------------------------------------------------------------*/
/* INCLUDES */
/*--------------------------------------------------------------------------*/

#include <cassert>
#include <cstring>
#include <iostream>
#include <sys/types.h>
#include <sys/stat.h>

#include <errno.h>
#include <unistd.h>

#include "reqchannel.h"
#include "semaphore.h"

using namespace std;

/*--------------------------------------------------------------------------*/
/* DATA STRUCTURES */ 
/*--------------------------------------------------------------------------*/

    /* -- (none) -- */

/*--------------------------------------------------------------------------*/
/* CONSTANTS */
/*--------------------------------------------------------------------------*/

    /* -- (none) -- */

/*--------------------------------------------------------------------------*/
/* FORWARDS */
/*--------------------------------------------------------------------------*/

    /* -- (none) -- */

/*--------------------------------------------------------------------------*/
/* MAIN FUNCTION */
/*--------------------------------------------------------------------------*/

int main(int argc, char * argv[]) {
          
    unsigned int n = 20, b = 100, w = 5;
    int option = -1;

    while ((option = getopt(argc, argv, "n:b:w:")) != -1){
        switch (option){
            case 'n' :
                n = atoi(optarg);
                break;
            case 'b' :
                b = atoi(optarg);
                break;
             case 'w' :
                w = atoi(optarg);
                break;
        }
    }
    
    cout << n << b << w << endl;     
                
    Semaphore sema(5); 
    cout << "CLIENT STARTED:" << endl;
  
    pid_t pid = fork();
    
    if(pid == 0){
    cout << "Establishing control channel... " << flush;
    RequestChannel chan("control", RequestChannel::CLIENT_SIDE);
    cout << "done." << endl;
    
    /* -- Start sending a sequence of requests */

    string reply1 = chan.send_request("hello");
    cout << "Reply to request 'hello' is '" << reply1 << "'" << endl;

    string reply2 = chan.send_request("data Joe Smith");
    cout << "Reply to request 'data Joe Smith' is '" << reply2 << "'" << endl;

    string reply3 = chan.send_request("data Jane Smith");
    cout << "Reply to request 'data Jane Smith' is '" << reply3 << "'" << endl;

    string reply5 = chan.send_request("newthread");
    cout << "Reply to request 'newthread' is " << reply5 << "'" << endl;
    RequestChannel chan2(reply5, RequestChannel::CLIENT_SIDE);

    string reply6 = chan2.send_request("data John Doe");
    cout << "Reply to request 'data John Doe' is '" << reply6 << "'" << endl;

    string reply7 = chan2.send_request("quit");
    cout << "Reply to request 'quit' is '" << reply7 << "'" << endl;

    string reply4 = chan.send_request("quit");
    cout << "Reply to request 'quit' is '" << reply4 << "'" << endl;
    }else{
        execve("dataserver", argv, argv);
    }
    
    usleep(1000000);
}

/*
void* Worker_Thread();

void* Req_Thread();

void* 
*/