package org.spacehq.mc.protocol.test;

import org.spacehq.mc.auth.data.GameProfile;
import org.spacehq.mc.auth.exception.request.RequestException;
import org.spacehq.mc.protocol.MinecraftProtocol;
import org.spacehq.mc.protocol.MinecraftConstants;
import org.spacehq.mc.protocol.data.SubProtocol;
import org.spacehq.mc.protocol.ServerLoginHandler;
import org.spacehq.mc.protocol.data.game.entity.player.GameMode;
import org.spacehq.mc.protocol.data.game.setting.Difficulty;
import org.spacehq.mc.protocol.data.game.world.WorldType;
import org.spacehq.mc.protocol.data.message.ChatColor;
import org.spacehq.mc.protocol.data.message.ChatFormat;
import org.spacehq.mc.protocol.data.message.Message;
import org.spacehq.mc.protocol.data.message.MessageStyle;
import org.spacehq.mc.protocol.data.message.TextMessage;
import org.spacehq.mc.protocol.data.message.TranslationMessage;
import org.spacehq.mc.protocol.data.status.PlayerInfo;
import org.spacehq.mc.protocol.data.status.ServerStatusInfo;
import org.spacehq.mc.protocol.data.status.VersionInfo;
import org.spacehq.mc.protocol.data.status.handler.ServerInfoBuilder;
import org.spacehq.mc.protocol.data.status.handler.ServerInfoHandler;
import org.spacehq.mc.protocol.data.status.handler.ServerPingTimeHandler;
import org.spacehq.mc.protocol.packet.ingame.client.ClientChatPacket;
import org.spacehq.mc.protocol.packet.ingame.server.ServerChatPacket;
import org.spacehq.mc.protocol.packet.ingame.server.ServerJoinGamePacket;
import org.spacehq.packetlib.Client;
import org.spacehq.packetlib.Server;
import org.spacehq.packetlib.Session;
import org.spacehq.packetlib.event.server.ServerAdapter;
import org.spacehq.packetlib.event.server.SessionAddedEvent;
import org.spacehq.packetlib.event.server.SessionRemovedEvent;
import org.spacehq.packetlib.event.session.DisconnectedEvent;
import org.spacehq.packetlib.event.session.PacketReceivedEvent;
import org.spacehq.packetlib.event.session.SessionAdapter;
import org.spacehq.packetlib.tcp.TcpSessionFactory;

import java.net.Proxy;
import java.util.Arrays;

public class MinecraftProtocolTest {
    private static final boolean SPAWN_SERVER = true;
    private static final boolean VERIFY_USERS = false;
    private static final String HOST = "127.0.0.1";
    private static final int PORT = 25565;
    private static final Proxy PROXY = Proxy.NO_PROXY;
    private static final Proxy AUTH_PROXY = Proxy.NO_PROXY;
    private static final String USERNAME = "Username";
    private static final String PASSWORD = "Password";

    public static void main(String[] args) {
        if(SPAWN_SERVER) {
            Server server = new Server(HOST, PORT, MinecraftProtocol.class, new TcpSessionFactory(PROXY));
            server.setGlobalFlag(MinecraftConstants.AUTH_PROXY_KEY, AUTH_PROXY);
            server.setGlobalFlag(MinecraftConstants.VERIFY_USERS_KEY, VERIFY_USERS);
            server.setGlobalFlag(MinecraftConstants.SERVER_INFO_BUILDER_KEY, new ServerInfoBuilder() {
                @Override
                public ServerStatusInfo buildInfo(Session session) {
                    return new ServerStatusInfo(new VersionInfo(MinecraftConstants.GAME_VERSION, MinecraftConstants.PROTOCOL_VERSION), new PlayerInfo(100, 0, new GameProfile[0]), new TextMessage("Hello world!"), null);
                }
            });

            server.setGlobalFlag(MinecraftConstants.SERVER_LOGIN_HANDLER_KEY, new ServerLoginHandler() {
                @Override
                public void loggedIn(Session session) {
                    session.send(new ServerJoinGamePacket(0, false, GameMode.SURVIVAL, 0, Difficulty.PEACEFUL, 10, WorldType.DEFAULT, false));
                }
            });

            server.setGlobalFlag(MinecraftConstants.SERVER_COMPRESSION_THRESHOLD, 100);
            server.addListener(new ServerAdapter() {
                @Override
                public void sessionAdded(SessionAddedEvent event) {
                    event.getSession().addListener(new SessionAdapter() {
                        @Override
                        public void packetReceived(PacketReceivedEvent event) {
                            if(event.getPacket() instanceof ClientChatPacket) {
                                ClientChatPacket packet = event.getPacket();
                                GameProfile profile = event.getSession().getFlag(MinecraftConstants.PROFILE_KEY);
                                System.out.println(profile.getName() + ": " + packet.getMessage());
                                Message msg = new TextMessage("Hello, ").setStyle(new MessageStyle().setColor(ChatColor.GREEN));
                                Message name = new TextMessage(profile.getName()).setStyle(new MessageStyle().setColor(ChatColor.AQUA).addFormat(ChatFormat.UNDERLINED));
                                Message end = new TextMessage("!");
                                msg.addExtra(name);
                                msg.addExtra(end);
                                event.getSession().send(new ServerChatPacket(msg));
                            }
                        }
                    });
                }

                @Override
                public void sessionRemoved(SessionRemovedEvent event) {
                    MinecraftProtocol protocol = (MinecraftProtocol) event.getSession().getPacketProtocol();
                    if(protocol.getSubProtocol() == SubProtocol.GAME) {
                        System.out.println("Closing server.");
                        event.getServer().close();
                    }
                }
            });

            server.bind();
        }

        status();
        login();
    }

    private static void status() {
        MinecraftProtocol protocol = new MinecraftProtocol(SubProtocol.STATUS);
        Client client = new Client(HOST, PORT, protocol, new TcpSessionFactory(PROXY));
        client.getSession().setFlag(MinecraftConstants.AUTH_PROXY_KEY, AUTH_PROXY);
        client.getSession().setFlag(MinecraftConstants.SERVER_INFO_HANDLER_KEY, new ServerInfoHandler() {
            @Override
            public void handle(Session session, ServerStatusInfo info) {
                System.out.println("Version: " + info.getVersionInfo().getVersionName() + ", " + info.getVersionInfo().getProtocolVersion());
                System.out.println("Player Count: " + info.getPlayerInfo().getOnlinePlayers() + " / " + info.getPlayerInfo().getMaxPlayers());
                System.out.println("Players: " + Arrays.toString(info.getPlayerInfo().getPlayers()));
                System.out.println("Description: " + info.getDescription().getFullText());
                System.out.println("Icon: " + info.getIcon());
            }
        });

        client.getSession().setFlag(MinecraftConstants.SERVER_PING_TIME_HANDLER_KEY, new ServerPingTimeHandler() {
            @Override
            public void handle(Session session, long pingTime) {
                System.out.println("Server ping took " + pingTime + "ms");
            }
        });

        client.getSession().connect();
        while(client.getSession().isConnected()) {
            try {
                Thread.sleep(5);
            } catch(InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    private static void login() {
        MinecraftProtocol protocol = null;
        if(VERIFY_USERS) {
            try {
                protocol = new MinecraftProtocol(USERNAME, PASSWORD, false);
                System.out.println("Successfully authenticated user.");
            } catch(RequestException e) {
                e.printStackTrace();
                return;
            }
        } else {
            protocol = new MinecraftProtocol(USERNAME);
        }

        Client client = new Client(HOST, PORT, protocol, new TcpSessionFactory(PROXY));
        client.getSession().setFlag(MinecraftConstants.AUTH_PROXY_KEY, AUTH_PROXY);
        client.getSession().addListener(new SessionAdapter() {
            @Override
            public void packetReceived(PacketReceivedEvent event) {
                if(event.getPacket() instanceof ServerJoinGamePacket) {
                    event.getSession().send(new ClientChatPacket("Hello, this is a test of MCProtocolLib."));
                } else if(event.getPacket() instanceof ServerChatPacket) {
                    Message message = event.<ServerChatPacket>getPacket().getMessage();
                    System.out.println("Received Message: " + message.getFullText());
                    if(message instanceof TranslationMessage) {
                        System.out.println("Received Translation Components: " + Arrays.toString(((TranslationMessage) message).getTranslationParams()));
                    }

                    event.getSession().disconnect("Finished");
                }
            }

            @Override
            public void disconnected(DisconnectedEvent event) {
                System.out.println("Disconnected: " + Message.fromString(event.getReason()).getFullText());
                if(event.getCause() != null) {
                    event.getCause().printStackTrace();
                }
            }
        });

        client.getSession().connect();
    }
}