#include <Windows.h>
#include <string>
#include <iostream>
#include <cctype>

bool ToClipboard(const std::string &s)
{
	OpenClipboard(0);
	EmptyClipboard();
	HGLOBAL hg = GlobalAlloc(GMEM_MOVEABLE, s.size());
	if (!hg) {
		CloseClipboard();
		return false;
	}
	memcpy(GlobalLock(hg), s.c_str(), s.size());
	GlobalUnlock(hg);
	SetClipboardData(CF_TEXT, hg);
	CloseClipboard();
	GlobalFree(hg);
	return true;
}

std::string ToSpace(const std::string &s)
{
	unsigned int spaces = 0;
	unsigned int req_size = 0;
	
	//count spaces
	for (auto c : s) {
		if (c == ' ') { spaces++; }
	}

	unsigned int chars = s.size() - spaces;
	req_size = (chars * 2) + (spaces * 2) + 1;

	char *string = new char[req_size];
	
	size_t string_index = 0;
	for (size_t i{ 0 }; i < s.size(); i++) {
		if (s[i] != ' ') {
			string[string_index] = s[i];
			string[string_index] = toupper(string[string_index]);
			string[string_index + 1] = ' ';
			string_index = string_index + 2;
		}
		else {
			string[string_index] = s[i];
			string[string_index + 1] = ' ';
			string_index = string_index + 2;
		}
	}
	string[req_size - 1] = '\0';

	std::string return_string = std::string(string);
	delete[] string;

	return return_string;
}

int main()
{
	bool correct_input = false;
	std::string in = "";
	while(!correct_input) {
		in = "";
		std::string valid = "";
		std::cout << "S P A C E   Y O U R   T E X T" << std::endl;
		std::getline(std::cin, in);
		std::cout << "S P A C E : " + in + " ? (y/n)" << std::endl;
		std::cin >> valid;
		if (valid.front() == 'y' || valid.front() == 'Y') { correct_input = true; }
	}

	std::string spaced_string = ToSpace(in);

	if (ToClipboard(spaced_string)) {
		return 0;
	}
	return -1;
}