#include <iostream>
#include <stdlib.h>
#include <time.h>
#include <vector>

const int dictionarySize = 5;
const char* dictionary[dictionarySize] = {
	"programming",
	"encouragement",
	"possibility",
	"graphics",
	"activities"
};

bool HasCharacter(const char newGuess, const std::vector<char>& guesses)
{
	for (auto const& value : guesses)
	{
		if (value == newGuess) {
			return true;
		}
	}

	return false;
}

int GetRandomWord(const char* levels[], int start, int end)
{
	srand((unsigned int)time(NULL));
	int randomPick = rand() % end + start;

	std::cout << "[DEBUG]: Random pick is " << randomPick << std::endl;

	return randomPick;
}

int SizeOfWord(const char* word)
{
	int size = 0;

	while (*word != '\0')
	{
		++size;
		++word;
	}

	return size;
}

bool CheckIfGuessIsCorrect(const char needle, const char* haystack)
{
	while (*haystack != '\0')
	{
		if (*haystack == needle)
		{
			return true;
		}
		++haystack;
	}

	return false;
}

int DisplayHiddenLetters(const char* word, const std::vector<char>& guesses)
{
	std::cout << std::endl;
	std::cout << "==============================================================" << std::endl;

	int countHidden = 0;
	while (*word != '\0')
	{
		if (HasCharacter(*word, guesses))
		{
			std::cout << " " << *word << " ";
		}
		else
		{
			std::cout << " _ ";
			++countHidden;
		}
		++word;
	}
	std::cout << std::endl;

	std::cout << "==============================================================" << std::endl;
	std::cout << std::endl;

	return countHidden;
}

int main()
{
	const char* currentWord = dictionary[GetRandomWord(dictionary, 0, 5)];
	std::cout << "[DEBUG]: The word is " << currentWord << std::endl;

	const int maxGuesses = SizeOfWord(currentWord) + 3;

	bool isRunning = true;
	int countGuesses = 0;
	std::vector<char> guessedLetters;

	while (isRunning)
	{
		char guess;

		std::cout << "[YOU] Your guess is: ";
		std::cin >> guess;
		std::cin.get();
		std::cout << std::endl;

		++countGuesses;
		bool isGuessCorrect = CheckIfGuessIsCorrect(guess, currentWord);

		if (isGuessCorrect)
		{
			guessedLetters.push_back(guess);
			std::cout << "CORRECT GUESS!" << std::endl;
		}
		else
		{
			std::cout << "NO LUCK! TRY AGAIN!" << std::endl;
		}

		int hiddenLetters = DisplayHiddenLetters(currentWord, guessedLetters);

		if (countGuesses <= maxGuesses && hiddenLetters == 0)
		{
			isRunning = false;

			std::cout << std::endl;
			std::cout << "[WON] Congrats, you are a true word doctor!" << std::endl;
			std::cout << std::endl;
		}

		else if (countGuesses == maxGuesses && hiddenLetters > 0) {
			isRunning = false;

			std::cout << std::endl;
			std::cout << "[LOST] You ran out of guesses, better luck next time!" << std::endl;
			std::cout << std::endl;
		}
	}

	std::cin.get();
}