/*
 * Name and Test Record Generator
 * 
 * Description:
 *     Implements simple name generation with string concatenation and other
 *     things... Procedural generation ftw.
 *     
 *     This file has been modified to work along with Lab I for CS102.
 *     Used as an example to pseudo randomly generate names and test scores
 *     for the students to test their code with.
 *
 * Author:
 *     Clara Van Nguyen
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

const unsigned int MAX_TEST_COUNT = 12;
const unsigned int SYLL_COUNT     = 64;

const char* syllable[] = { "ab" , "al", "ar", "az", "be",
                           "ca" , "cr", "cw", "da", "de",
                           "ed" , "fr", "ge", "go", "gr",
                           "ha" , "ij", "ja", "ka", "ke",
                           "la" , "le", "li", "ma", "me",
                           "mi" , "mo", "mu", "n" , "nn",
                           "oa" , "oe", "oo", "o" , "on",
                           "pa" , "pe", "pi", "po", "q" ,
                           "ra" , "re", "ri", "sa", "se",
                           "shi", "so", "su", "ss", "ta",
                           "te" , "ti", "to", "tu", "tt",
                           "u"  , "v" , "wa", "we", "wo",
                           "xx" , "y" , "z" , "zz"       };

char* gen_name() {
	//Generates names with random number generator
	//Calls malloc()! Be sure to free when done with string!
	char* random_name = (char *) malloc(sizeof(char) * 32);
	memset(random_name, 0, 32);
	unsigned int i = 0;
	for (; i < (rand() % 4) + 2; i++) {
		strcat(random_name, syllable[rand() % SYLL_COUNT]);
	}

	//Ensure the first letter is capital
	random_name[0] += 'A' - 'a';
	return random_name;
}

main(int argc, char** argv) {
	//Parse arguments
	if (argc == 1) {
		fprintf(stderr, "Usage: namegen num\n");
		return 0;
	}
	srand(time(NULL));
	unsigned int i = 0,
	             r = atoi(argv[1]),
				 a, n;
	
	//Generate names and scores
	for (; i < r; i++) {
		char* firstname = gen_name(),
		    * lastname  = gen_name();
		printf("%s %s", firstname, lastname);
		n = rand() % MAX_TEST_COUNT;
		for (a = 0; a < n; a++) {
			//Ensure the score is a decimal number between 0 and 100.
			printf(" %g", (double)(rand() % 100) + ((rand() % 100) * .01));
		}
		printf("\n");

		//Free memory
		free(firstname);
		free(lastname);
	}

	//Have a nice day.
	return;
}