#include "message.h"
#include "user.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int num_of_lines(char* filename);
char* file_to_string(char* filename);


int main() {

	int num_users = num_of_lines("user_file.txt"); 
	
	/* Structure of user file - <username> <password> on every line */
	
	char* file_str = file_to_string("user_file.txt");

	char* token = malloc(sizeof(char) * 30);
	User users[num_users];

	token = strtok(file_str," \r\n");

	for (int i=0;i<num_users;i++) {
		users[i].username = token;
		token = strtok(NULL," \r\n");
		users[i].password = token;		
		token = strtok(NULL," \r\n");
	}

	Message message = new_message("Hello, this is a text message",users[0],users[1]);

	printf("Message was: %s\nSentfrom: %s\nSent to: %s\nSent at: %s\n",message.text,message.sender.username,message.recipient.username,asctime(&message.timeinfo));
}





char* file_to_string(char* filename) {
	FILE* fp = fopen(filename,"r");

	fseek(fp,0,SEEK_END);
	long file_size = ftell(fp);
	rewind(fp);

	char* buffer = calloc(sizeof(char),file_size+1);

	fread(buffer,1,file_size,fp);

	fclose(fp);

	return buffer;
	
}





/* Finds the number of lines in a file (Which MUST end in a new-line, if the last
   line is to be counted) */

int num_of_lines(char* filename) {

	int num_lines = 0;
	FILE* fp = fopen(filename,"r");
	
	if (fp == NULL) {
		return -1;
	}


	for (int c = getc(fp); c != EOF; c = getc(fp)) {
		if (c == '\n') {
			num_lines++;
		}
	}

	fclose(fp);

	return num_lines;

}