post.cc

/*Domenic Bianchi*/
/*CIS 2750 Assignment 2*/
/*February 19, 2017*/
/*This program gets user input to create a new post*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <time.h>
#include "stream.h"
#include "addauthor.h"

class postEntry {

	void readInput(char input[], int option) {

		/*Get input for stream name*/
		if (option == 1) {

			printf("stream: ");
			fgets(input, 256, stdin);
			input[strlen(input)-1] = '\0';
		}
		/*Get input for post text*/
		else {

			char input2[512];
			clearArray(input2, 512);

			printf("Enter text: ");

			while (fgets(input2, 79, stdin) != NULL) {

				/*If there is a new line character at the end of the string, that means fgets has read in all of the input*/
				if (input2[strlen(input2)-1] == '\n') {

					strcat(input, input2);
					clearArray(input2, 512);
					printf("- ");
				}
				else {

					strcat(input, input2);
					strcat(input, "\n");
				}
			}
			printf("ctrl-d\n");
		}
	}

	userPost * formatEntry(char name[], char stream[], char text[], char dateAndTime[]) {

		userPost * current;

		/*Malloc memory for the Post node*/
		current = malloc(sizeof(userPost));

		/*If the malloc fails, do not create the node*/
		if (current == NULL)  {

			free(current);
			return NULL;
		}

		current->username = name;
		current->streamname = stream;
		current->date = dateAndTime;
		current->text = text;

		return current;
	}

	void getTimeAndDate(char string[]) {

		time_t currentTime;
		struct tm * timeStruct;

		/*Get the current data and time from the machine this program is being run on*/
		currentTime = time(NULL);
		timeStruct = localtime(&currentTime);

		/*Format the time string in order to be parsed correctly in the python script*/
		strftime(string, 256, "%b. %d, %Y %H:%M\n", timeStruct);		
	}

	void submitPost(userPost * post) {

		/*updateStream is a library function*/
		updateStream(post);
		free(post);
	}
};

int main(int argc, char * argv[]) {

	if (argc == 1) {

		printf("%s\n", "Username not included.");
		return 1;
	}

	class postEntry post;

	userPost * fullPost;

	char streamName[256];
	char username[256];
	char text[512];
	char dateAndTime[256];
	int i = 0;
	clearArray(streamName, 256);
	clearArray(text, 512);
	clearArray(dateAndTime, 256);
	clearArray(username, 256);

	/*Prompt for user input*/
	post.readInput(streamName, 1);
	post.readInput(text, 2);

	/*Get the time and date*/
	post.getTimeAndDate(dateAndTime);

	/*Loop through all arguments after the first one*/
	for (i = 1; argv[i] != NULL; i++) {

		/*Add argument to username string*/
		strcat(username, argv[i]);

		/*Multiple username arguments mean the username is multiple words so seperarte the arguments/words by a space*/
		if (argv[i+1] != NULL) {

			strcat(username, " ");
		}
	}

	/*Format all the inputed information into a struct that can be sent to the stream library*/
	fullPost = post.formatEntry(username, streamName, text, dateAndTime);

	/*Send struct to stream library*/
	post.submitPost(fullPost);

	return 0;
}