#ifndef NETWORK_IPADDRESS_H_
#define NETWORK_IPADDRESS_H_

#include <string>
#include <iosfwd>
#include <vector>
#include <cstdint>

namespace td {
namespace network {

/* IPv4 address */
class IPAddress {
private:
	std::uint32_t m_Address;
	bool m_Valid;

public:
	/* Create an invalid address */
	IPAddress() noexcept;

	/* Initialize by string IP */
	IPAddress(const std::string& str);

	/* Initialize by string IP */
	IPAddress(const std::wstring& str);

	/* Initialize by octets */
	IPAddress(std::uint8_t octet1, std::uint8_t octet2, std::uint8_t octet3, std::uint8_t octet4) noexcept;

	/* Get the specific octet. 1-4 */
	std::uint8_t GetOctet(std::uint8_t num) const;

	/* Set the specific octet. 1-4 */
	void SetOctet(std::uint8_t num, std::uint8_t value);

	/* Make sure the IP is valid. It will be invalid if the host wasn't found. */
	bool IsValid() const noexcept { return m_Valid; }

	std::string ToString() const;

	static IPAddress LocalAddress();

	bool operator==(const IPAddress& right);
	bool operator!=(const IPAddress& right);
	bool operator==(bool b);
};

typedef std::vector<IPAddress> IPAddresses;

std::ostream& operator<<(std::ostream& os, const IPAddress& addr);
std::wostream& operator<<(std::wostream& os, const IPAddress& addr);

} // ns network
} // ns td

#endif