#include <arpa/inet.h>
#include <curses.h>
#include <netdb.h>
#include <netinet/in.h>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <unistd.h>

#include <string>
#include <vector> //try to make the program work without this without doing anything awful but do it later

#include "client.h"
#include "disp.h"
#include "log.h"
#include "public.h"
#include "server.h"

using namespace std;

const int PORT_NUM = 8888;
string IP_ADDRESS = "127.0.0.1";
const int DEFAULT_CUR_X = 2; // the x position of the preferred default cursor
			     // position for message entry
const int DEFAULT_CUR_Y = 12; // the x position of the preferred default cursor
			      // position for message entry

chatmode_t mode = NO_MODE; // what mode is this program in. 0 = nothing. 1 = server. 2 = client

int serverSocketDescriptor; // a global variable for storing the server socket
			    // descriptor.
int clientSocketDescriptor;
vector<int> clientSocketDescriptors; // a global vector for storing client
				     // socket descriptors

// keep track of the session time using global variables
struct timeval start1, end1;

// also keep track of the amount of data sent as well
int bytesRead, bytesWritten = 0;

const int LOG_LENGTH = 10; // number of text log file lines to display
int linePos = 0;	   // counter for what current position to use in the file

string logFileName; // the name of the log file

pthread_t client_wait_thread;

struct waitClientArgs {
	sockaddr_in newSockAddr;
	socklen_t newSockAddrSize;
	int auxInt; // used in client mode because I didn't want to make another
		    // struct to keep track of
};

int
main(int argc, char *argv[])
{
	if (argc > 1 && (!strncmp(argv[1], "client", 6))) {
		logFileName = "client.txt";
		mode = CLIENT_MODE;
	} else {
		logFileName = "server.txt";
		mode = SERVER_MODE;
	}

	// putting this lower down to circumvent the terminal brick when the
	// socket was already in use results in all network functonality no
	// longer working.
	initscr();	      // creates stdscr. important step
	use_default_colors(); // this apparently tells it to use default
			      // terminal colors whenever there is no color
			      // attribute applied

	// printw("Starting server...");

	// you have to do this to make the scrolling still work correctly if
	// there was already content in the log file
	linePos = linesInFile(logFileName) - LOG_LENGTH + 1;

	char *userInput = new char[1024];
	bool exit = false;

	switch (mode) {
	case CLIENT_MODE:
		writeToFile(logFileName, "CLIENT MODE");
		setupClient();
		linePos++;
		break;
	case SERVER_MODE:
		writeToFile(logFileName, "SERVER MODE");
		setupServer(PORT_NUM);
		linePos++;
		break;
	default:
		goto leave;
		break;
	}

	while (!exit) {
		displayFile(logFileName, linePos, LOG_LENGTH);

		// scroll along the screen if and when required so that it stays
		// in sync
		if (linesInFile(logFileName) > LOG_LENGTH)
			linePos++;

		/* clear message box / reset cursor */
		move(12, 0);
		printw(">\t\t\t");
		move(12, 2);

		getstr(userInput);
		writeToFile(logFileName, userInput);

		if (!strncmp(userInput, "/quit", 5))
			exit = true;

		if (mode == 1)
			send(clientSocketDescriptor, (char *)userInput, strlen(userInput), 0);
		else
			send(clientSocketDescriptor, (char *)userInput, strlen(userInput), 0);
	}

leave:
	endwin();
	// closeServer();

	switch (mode) {
	case SERVER_MODE:
		closeServer();
		break;
	case CLIENT_MODE:
		closeServer();
		break;
	default:
		puts("Warn: program appears to have successfully finished without ever setting "
		     "mode.");
		return 1;
		break;
	}

	return 0;
}