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/*
    Copyright (c) 2012 Spotify AB
    Copyright (c) 2012 Other contributors as noted in the AUTHORS file

    This file is part of 0MQ.

    0MQ is free software; you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    0MQ is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see .
*/
package zmq;

import java.net.InetSocketAddress;
import java.net.Inet6Address;
import java.net.SocketAddress;

public class Address {

    public static interface IZAddress {
        String toString();
        void resolve(String name_, boolean ip4only_);
        SocketAddress address();
    };

    private final String protocol;
    private final String address;
    private final boolean ipv4only;

    private IZAddress resolved;

    public Address(final String protocol_, final String address_, final boolean ipv4only_) {
        protocol = protocol_;
        address = address_;
        ipv4only = ipv4only_;
        resolved = null;
    }

    public Address(SocketAddress sockaddr_) {
        InetSocketAddress sockaddr = (InetSocketAddress)sockaddr_;
        address = sockaddr.getAddress().getHostAddress() + ":" + sockaddr.getPort();
        protocol = "tcp";
        resolved = null;
        ipv4only = !(sockaddr.getAddress() instanceof Inet6Address);
    }

    @Override
    public String toString() {
        if (protocol.equals("tcp") && isResolved()) {
            return resolved.toString();
        }
        else if (protocol.equals("ipc") && isResolved()) {
            return resolved.toString();
        }
        else if (!protocol.isEmpty() && !address.isEmpty ()) {
            return protocol + "://" + address;
        } else {
            return "";
        }
    }

    public String protocol() {
        return protocol;
    }

    public String address() {
        return address;
    }

    public IZAddress resolved() {
        return resolved;
    }

    public boolean isResolved() {
        return resolved != null;
    }

    public boolean resolve() {
       if (protocol.equals("tcp")) {
            resolved = new TcpAddress();
            resolved.resolve(address, ipv4only);
            return true;
        }
        else if (protocol.equals("ipc")) {
            resolved = new IpcAddress();
            resolved.resolve(address, true);
            return true;
        }
        else {
            return false;
        }
    }
}