#pragma once
#ifndef URL_ENCODER_H
#define URL_ENCODER_H

#include <string>
#include <sstream>
#include <iomanip>

const char kUnreservedChar[] = {
	//0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, // 2
	  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 3
	  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 4
	  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, // 5
	  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 6
	  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, // 7
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // A
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // B
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // C
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // D
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // E
	  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0  // F
};

class UrlEncoder {
public:
	static inline void Encode(const std::string& in, std::string* out, bool uppercase = false) {
		std::stringstream ss;

		for (std::string::const_iterator it = in.begin(); it != in.end(); ++it) {
			if (kUnreservedChar[*it]) {
				ss << *it;
			}
			else {
				ss << '%' << std::setfill('0') << std::hex;
				if (uppercase) ss << std::uppercase;
				ss << (int)*it;
			}
		}

		out->assign(ss.str());
	}

	static inline std::string Encode(const std::string& in, bool uppercase = false) {
		std::string out;
		Encode(in, &out, uppercase);
		return out;
	}


private:
};

#endif // URL_ENCODER_H