#include <stdio.h>
#include <stdlib.h>
#include "mastermind.h"


// TODO: Create the comment header for this function
unsigned int extract_digit(unsigned int pattern, unsigned int digit)
{
	// you may NOT use any math methods - use basic mathematical operations,
	// conditionals, and/or loops for problems this small and regular.
	// TODO: Implement this function
	// TODO: Write printf that states it is not yet implemented
	return 0;
}

// TODO: Create the comment header for this function
unsigned int num_of_color(unsigned int pattern, unsigned int color)
{
	// TODO: Implement this function
	// TODO: Write printf that states it is not yet implemented
	return 0;
}

// TODO: Create the comment header for this function
unsigned int count_exact_matches(unsigned int guess, unsigned int solution)
{
	// TODO: Implement this function
	// TODO: Write printf that states it is not yet implemented
	return 0;
}

// TODO: Create the comment header for this function
unsigned int count_color_matches(unsigned int guess, unsigned int solution)
{
	// TODO: Implement this function
	// TODO: Write printf that states it is not yet implemented
	return 0;
}

// TODO: Create the comment header for this function
unsigned int get_guess_feedback(unsigned int guess, unsigned int solution)
{
	// TODO: Implement this function
	// TODO: Write printf that states it is not yet implemented
	return 0;
}


// TODO: Write a test function for each mstermind function

/* test_mastermind
 * This is the test function that has 3+ good test cases for this function in your
 * mastermind program. This verifies that the bits are working so that if you find a 
 * bug you can more easily localize it.
 * inputs:
 *   none. Tests are hard coded.
 * outputs:
 *   none. Test results are printed out.
 */
void test_mastermind()
{

	// TODO: Write 3+ good test cases for each function you implement for mastermind
}

/* print_mastermind_instructions
 * This prints out user instructions to play mastermind.
 * inputs:
 *   none
 * outputs:
 *   none. Insructions are printed to screen.
 */
void print_mastermind_instructions()
{
	printf("Welcome to mastermind. I am thinking of a 4-number\n");
	printf("sequence. All four numbers are between 1 and 6.\n");
	printf("You have 12 guesses to guess it correctly.\n");
	printf("Each time you guess, I'll tell two things.\n");
	printf("1. How many numbers are correct and in the correct position.\n");
	printf("2. How many other numbers are correct but in the wrong position.\n");
	printf("Let's get started!!!\n");
}

/* get_new_code
 * Generates a 4-digit number, with each digit a number from 1 to 6, inclusive.
 * inputs:
 *   none
 * outputs:
 *   unsigned int - 4-digit number with each digit from 1 to 6
 */
unsigned int get_new_code()
{
	int i;
	int result = 0;
	for (i = 0; i < 4; i++)
	{
		result = result * 10;
		result = result + ((rand() % 6) + 1);
	}
	return result;
}


/* play_mastermind
 * This is the game loop to play mastermind. All print statements are provided so that you 
 * have consistent messages for grading purposes. An example of how to do error checking is 
 * provided so you can model that.
 * inputs:
 *  none. Users play interactively
 * outputs:
 *  none. Everything is printed.
 */
void play_mastermind()
{

	unsigned int guess_num = 0;
	unsigned int solution = 0;
	unsigned int guess = 0;
	unsigned int feedback = 0;

	print_mastermind_instructions();
	solution = get_new_code();
	// print this out so that we can tell whether yours matches ours. Don't remote
	printf("solution: %u\n",solution);

	// TODO: Limit number of guesses to 12 guesses

	// TODO: Print out the guess number each time
	printf("Guess %d - ",guess_num);
	printf("Input your 4-digit guess: ");
	scanf("%u",&guess);

	// TODO: Call your functions to find out how close the guess was


	// report the feedback
	printf("Feedback: %u correct placement, correct color,\n",
		feedback / 10);
	printf("%u incorrect placement, correct color\n",
		feedback % 10);
	// note: If it's an invalid guess, go back and ask the guess immediately. Go back
	// to Guess %d - . Don't print out the Congratuations or Not quite below.
	printf("%u is an invalid guess. Make sure your guess is a 4-digit number, each digit between 1-6.\n",
                guess);
	


	// TODO: Detect whether guess was entirely correct:
	// if correct, print out congrats and return from this function.
	printf("Congratulations! Your guess of %u was correct!\n",
		guess);

	// TODO: if incorrect, print out number of guesses left
	// if incorrect
	printf("Not quite - you still have %u guesses left!\n",
		guess_num);


	// only print this out if they ran out of guesses didn't win.
	printf("Sorry, you did not guess it! The solution was %u\n",solution);
}