#include "ip_address.hpp"

#include "net.hpp"

namespace llarp
{
  IpAddress::IpAddress(std::string_view str)
  {
    setAddress(str);
  }

  IpAddress::IpAddress(const IpAddress& other)
      : m_empty(other.m_empty), m_ipAddress(other.m_ipAddress), m_port(other.m_port)
  {}

  IpAddress::IpAddress(std::string_view str, std::optional<uint16_t> port)
  {
    setAddress(str, port);
  }

  IpAddress::IpAddress(const SockAddr& addr)
  {
    m_ipAddress = addr.ToString();
    uint16_t port = addr.getPort();
    if (port > 0)
      m_port = port;

    m_empty = addr.isEmpty();
  }

  IpAddress&
  IpAddress::operator=(IpAddress&& other)
  {
    m_ipAddress = std::move(other.m_ipAddress);
    m_port = std::move(other.m_port);
    m_empty = other.m_empty;
    other.m_empty = false;
    return *this;
  }

  IpAddress&
  IpAddress::operator=(const sockaddr& other)
  {
    SockAddr addr(other);

    m_ipAddress = addr.ToString();
    uint16_t port = addr.getPort();
    if (port > 0)
      m_port = port;

    m_empty = addr.isEmpty();

    return *this;
  }
  IpAddress&
  IpAddress::operator=(const IpAddress& other)
  {
    m_empty = other.m_empty;
    m_ipAddress = other.m_ipAddress;
    m_port = other.m_port;
    return *this;
  }

  std::optional<uint16_t>
  IpAddress::getPort() const
  {
    return m_port;
  }

  void
  IpAddress::setPort(std::optional<uint16_t> port)
  {
    m_port = port;
  }

  void
  IpAddress::setAddress(std::string_view str)
  {
    SockAddr addr;
    addr.fromString(str);

    m_ipAddress = std::string(str);
    uint16_t port = addr.getPort();
    if (port > 0)
      m_port = port;

    m_empty = addr.isEmpty();
  }

  void
  IpAddress::setAddress(std::string_view str, std::optional<uint16_t> port)
  {
    SockAddr addr;
    addr.fromString(str);

    m_ipAddress = std::string(str);
    m_port = port;

    m_empty = addr.isEmpty();
  }

  bool
  IpAddress::isIPv4()
  {
    throw std::runtime_error("FIXME - IpAddress::isIPv4()");
  }

  bool
  IpAddress::isEmpty() const
  {
    return m_empty;
  }

  SockAddr
  IpAddress::createSockAddr() const
  {
    SockAddr addr(m_ipAddress);
    if (m_port)
      addr.setPort(*m_port);

    return addr;
  }

  bool
  IpAddress::isBogon() const
  {
    SockAddr addr(m_ipAddress);
    const auto* addr6 = static_cast<const sockaddr_in6*>(addr);
    const uint8_t* raw = addr6->sin6_addr.s6_addr;
    return IPRange::V4MappedRange().Contains(ipaddr_ipv4_bits(raw[12], raw[13], raw[14], raw[15]));
  }

  std::string
  IpAddress::ToString() const
  {
    return m_ipAddress;  // TODO: port
  }

  bool
  IpAddress::hasPort() const
  {
    return m_port.has_value();
  }

  std::string
  IpAddress::toHost() const
  {
    const auto pos = m_ipAddress.find(":");
    if (pos != std::string::npos)
    {
      return m_ipAddress.substr(0, pos);
    }
    return m_ipAddress;
  }

  huint32_t
  IpAddress::toIP() const
  {
    huint32_t ip;
    ip.FromString(toHost());
    return ip;
  }

  huint128_t
  IpAddress::toIP6() const
  {
    huint128_t ip;
    ip.FromString(m_ipAddress);
    return ip;
  }

  bool
  IpAddress::operator<(const IpAddress& other) const
  {
    return createSockAddr() < other.createSockAddr();
  }

  bool
  IpAddress::operator==(const IpAddress& other) const
  {
    return createSockAddr() == other.createSockAddr();
  }
}  // namespace llarp