Renamed mod to Cowlection

Bumped version to 1.8.9-0.7.0

7 files changed, 655 insertions, 0 deletions

diff --git a/src/main/java/eu/olli/cowlection/command/MooCommand.java b/src/main/java/eu/olli/cowlection/command/MooCommand.java
new file mode 100644
index 0000000..1798568
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/MooCommand.java
@@ -0,0 +1,517 @@
+package eu.olli.cowlection.command;
+
+import com.mojang.realmsclient.util.Pair;
+import eu.olli.cowlection.Cowlection;
+import eu.olli.cowlection.command.exception.ApiContactException;
+import eu.olli.cowlection.command.exception.InvalidPlayerNameException;
+import eu.olli.cowlection.command.exception.MooCommandException;
+import eu.olli.cowlection.config.MooConfig;
+import eu.olli.cowlection.config.MooGuiConfig;
+import eu.olli.cowlection.data.DataHelper;
+import eu.olli.cowlection.data.Friend;
+import eu.olli.cowlection.data.HySkyBlockStats;
+import eu.olli.cowlection.data.HyStalkingData;
+import eu.olli.cowlection.search.GuiSearch;
+import eu.olli.cowlection.util.*;
+import net.minecraft.client.Minecraft;
+import net.minecraft.command.*;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.item.EntityArmorStand;
+import net.minecraft.event.ClickEvent;
+import net.minecraft.event.HoverEvent;
+import net.minecraft.item.ItemSkull;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.*;
+import net.minecraftforge.common.util.Constants;
+import org.apache.commons.codec.binary.Base64;
+import org.apache.commons.lang3.StringUtils;
+
+import java.awt.*;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+
+public class MooCommand extends CommandBase {
+    private final Cowlection main;
+
+    public MooCommand(Cowlection main) {
+        this.main = main;
+    }
+
+    @Override
+    public void processCommand(ICommandSender sender, String[] args) throws CommandException {
+        if (args.length == 0) {
+            sendCommandUsage(sender);
+            return;
+        }
+        // sub commands: friends & other players
+        if (args[0].equalsIgnoreCase("stalk")) {
+            if (args.length != 2) {
+                throw new WrongUsageException("/" + getCommandName() + " stalk <playerName>");
+            } else if (!Utils.isValidMcName(args[1])) {
+                throw new InvalidPlayerNameException(args[1]);
+            } else {
+                handleStalking(args[1]);
+            }
+        } else if (args[0].equalsIgnoreCase("stalksb") || args[0].equalsIgnoreCase("stalkskyblock") || args[0].equalsIgnoreCase("skyblockstalk")) {
+            if (args.length != 2) {
+                throw new WrongUsageException("/" + getCommandName() + " stalkskyblock <playerName>");
+            } else if (!Utils.isValidMcName(args[1])) {
+                throw new InvalidPlayerNameException(args[1]);
+            } else {
+                handleStalkingSkyBlock(args[1]);
+            }
+        } else if (args[0].equalsIgnoreCase("analyzeIsland")) {
+            Map<String, String> minions = DataHelper.getMinions();
+
+            Map<String, Integer> detectedMinions = new HashMap<>();
+            Map<Integer, Integer> detectedMinionsWithSkin = new HashMap<>();
+            int detectedMinionCount = 0;
+            int minionsWithSkinCount = 0;
+            entityLoop:
+            for (Entity entity : sender.getEntityWorld().loadedEntityList) {
+                if (entity instanceof EntityArmorStand) {
+                    EntityArmorStand minion = (EntityArmorStand) entity;
+
+                    if (minion.isInvisible() || !minion.isSmall() || minion.getHeldItem() == null) {
+                        // not a minion: invisible, or not small armor stand, or no item in hand (= minion in a minion chair)
+                        continue;
+                    }
+                    for (int slot = 0; slot < 4; slot++) {
+                        if (minion.getCurrentArmor(slot) == null) {
+                            // not a minion: missing equipment
+                            continue entityLoop;
+                        }
+                    }
+                    ItemStack skullItem = minion.getCurrentArmor(3); // head slot
+                    if (skullItem.getItem() instanceof ItemSkull && skullItem.getMetadata() == 3 && skullItem.hasTagCompound()) {
+                        // is a player head!
+                        if (skullItem.getTagCompound().hasKey("SkullOwner", Constants.NBT.TAG_COMPOUND)) {
+                            NBTTagCompound skullOwner = skullItem.getTagCompound().getCompoundTag("SkullOwner");
+                            String skullDataBase64 = skullOwner.getCompoundTag("Properties").getTagList("textures", Constants.NBT.TAG_COMPOUND).getCompoundTagAt(0).getString("Value");
+                            String skullData = new String(Base64.decodeBase64(skullDataBase64));
+                            String minionSkinId = StringUtils.substringBetween(skullData, "http://textures.minecraft.net/texture/", "\"");
+                            String detectedMinion = minions.get(minionSkinId);
+                            if (detectedMinion != null) {
+                                // minion head matches one know minion tier
+                                detectedMinions.put(detectedMinion, detectedMinions.getOrDefault(detectedMinion, 0) + 1);
+                                detectedMinionCount++;
+                            } else {
+                                int minionTier = ImageUtils.getTierFromTexture(minionSkinId);
+                                if (minionTier > 0) {
+                                    detectedMinionsWithSkin.put(minionTier, detectedMinionsWithSkin.getOrDefault(minionTier, 0) + 1);
+                                    minionsWithSkinCount++;
+                                } else {
+                                    // looked like a minion but has no matching tier badge
+                                    main.getLogger().info("[/moo analyzeIsland] Found an armor stand that could be a minion but it is missing a tier badge: " + minionSkinId + "\t\t\t" + minion.serializeNBT());
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            StringBuilder analysisResults = new StringBuilder("Found ").append(EnumChatFormatting.GOLD).append(detectedMinionCount).append(EnumChatFormatting.YELLOW).append(" minions");
+            if (minionsWithSkinCount > 0) {
+                analysisResults.append(" + ").append(EnumChatFormatting.GOLD).append(minionsWithSkinCount).append(EnumChatFormatting.YELLOW).append(" unknown minions with skins");
+            }
+            analysisResults.append(" on this island");
+            detectedMinions.entrySet().stream()
+                    .sorted(Map.Entry.comparingByKey()) // sort alphabetically by minion name and tier
+                    .forEach(minion -> {
+                        String minionWithTier = minion.getKey();
+                        int lastSpace = minionWithTier.lastIndexOf(' ');
+
+                        String tierRoman = minionWithTier.substring(lastSpace + 1);
+
+                        int tierArabic = Utils.convertRomanToArabic(tierRoman);
+                        EnumChatFormatting tierColor = Utils.getMinionTierColor(tierArabic);
+
+                        minionWithTier = minionWithTier.substring(0, lastSpace) + " " + tierColor + (MooConfig.useRomanNumerals() ? tierRoman : tierArabic);
+                        analysisResults.append("\n  ").append(EnumChatFormatting.GOLD).append(minion.getValue()).append(minion.getValue() > 1 ? "✕ " : "⨉ ")
+                                .append(EnumChatFormatting.YELLOW).append(minionWithTier);
+                    });
+            detectedMinionsWithSkin.entrySet().stream()
+                    .sorted(Map.Entry.comparingByKey()) // sort by tier
+                    .forEach(minionWithSkin -> {
+                        EnumChatFormatting tierColor = Utils.getMinionTierColor(minionWithSkin.getKey());
+                        String minionTier = MooConfig.useRomanNumerals() ? Utils.convertArabicToRoman(minionWithSkin.getKey()) : String.valueOf(minionWithSkin.getKey());
+                        analysisResults.append("\n  ").append(EnumChatFormatting.GOLD).append(minionWithSkin.getValue()).append(minionWithSkin.getValue() > 1 ? "✕ " : "⨉ ")
+                                .append(EnumChatFormatting.RED).append("Unknown minion ").append(EnumChatFormatting.YELLOW).append("(new or with minion skin) ").append(tierColor).append(minionTier);
+                    });
+            main.getChatHelper().sendMessage(EnumChatFormatting.YELLOW, analysisResults.toString());
+        } else if (args.length == 2 && args[0].equalsIgnoreCase("add")) {
+            handleBestFriendAdd(args[1]);
+        } else if (args.length == 2 && args[0].equalsIgnoreCase("remove")) {
+            handleBestFriendRemove(args[1]);
+        } else if (args[0].equalsIgnoreCase("list")) {
+            handleListBestFriends();
+        } else if (args[0].equalsIgnoreCase("nameChangeCheck")) {
+            main.getChatHelper().sendMessage(EnumChatFormatting.GOLD, "Looking for best friends that have changed their name... This will take a few seconds...");
+            main.getFriendsHandler().updateBestFriends(true);
+        }
+        // sub-commands: miscellaneous
+        else if (args[0].equalsIgnoreCase("config") || args[0].equalsIgnoreCase("toggle")) {
+            new TickDelay(() -> Minecraft.getMinecraft().displayGuiScreen(new MooGuiConfig(null)), 1); // delay by 1 tick, because the chat closing would close the new gui instantly as well.
+        } else if (args[0].equalsIgnoreCase("search")) {
+            new TickDelay(() -> Minecraft.getMinecraft().displayGuiScreen(new GuiSearch(main.getConfigDirectory())), 1); // delay by 1 tick, because the chat closing would close the new gui instantly as well.
+        } else if (args[0].equalsIgnoreCase("guiscale")) {
+            int currentGuiScale = (Minecraft.getMinecraft()).gameSettings.guiScale;
+            if (args.length == 1) {
+                main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "\u279C Current GUI scale: " + EnumChatFormatting.DARK_GREEN + currentGuiScale);
+            } else {
+                int scale = Math.min(10, MathHelper.parseIntWithDefault(args[1], 6));
+                Minecraft.getMinecraft().gameSettings.guiScale = scale;
+                main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "\u2714 New GUI scale: " + EnumChatFormatting.DARK_GREEN + scale + EnumChatFormatting.GREEN + " (previous: " + EnumChatFormatting.DARK_GREEN + currentGuiScale + EnumChatFormatting.GREEN + ")");
+            }
+        } else if (args[0].equalsIgnoreCase("shrug")) {
+            main.getChatHelper().sendShrug(buildString(args, 1));
+        } else if (args[0].equalsIgnoreCase("apikey")) {
+            handleApiKey(args);
+        }
+        // sub-commands: update mod
+        else if (args[0].equalsIgnoreCase("update")) {
+            boolean updateCheckStarted = main.getVersionChecker().runUpdateCheck(true);
+
+            if (updateCheckStarted) {
+                main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "\u279C Checking for a newer mod version...");
+                // VersionChecker#handleVersionStatus will run with a 5 seconds delay
+            } else {
+                long nextUpdate = main.getVersionChecker().getNextCheck();
+                String waitingTime = String.format("%02d:%02d",
+                        TimeUnit.MILLISECONDS.toMinutes(nextUpdate),
+                        TimeUnit.MILLISECONDS.toSeconds(nextUpdate) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(nextUpdate)));
+                throw new MooCommandException("\u26A0 Update checker is on cooldown. Please wait " + EnumChatFormatting.GOLD + EnumChatFormatting.BOLD + waitingTime + EnumChatFormatting.RESET + EnumChatFormatting.RED + " more minutes before checking again.");
+            }
+        } else if (args[0].equalsIgnoreCase("updateHelp")) {
+            main.getChatHelper().sendMessage(new ChatComponentText("\u279C Update instructions:").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(true))
+                    .appendSibling(new ChatComponentText("\n\u278A" + EnumChatFormatting.YELLOW + " download latest mod version").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(false)
+                            .setChatClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, main.getVersionChecker().getDownloadUrl()))
+                            .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Download the latest version of " + Cowlection.MODNAME + "\n\u279C Click to download latest mod file")))))
+                    .appendSibling(new ChatComponentText("\n\u278B" + EnumChatFormatting.YELLOW + " exit Minecraft").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(false)
+                            .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.GOLD + "\u278B" + EnumChatFormatting.YELLOW + " Without closing Minecraft first,\n" + EnumChatFormatting.YELLOW + "you can't delete the old .jar file!")))))
+                    .appendSibling(new ChatComponentText("\n\u278C" + EnumChatFormatting.YELLOW + " copy " + EnumChatFormatting.GOLD + Cowlection.MODNAME.replace(" ", "") + "-" + main.getVersionChecker().getNewVersion() + ".jar" + EnumChatFormatting.YELLOW + " into mods directory").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(false)
+                            .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/moo directory"))
+                            .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Open mods directory with command " + EnumChatFormatting.GOLD + "/moo directory\n\u279C Click to open mods directory")))))
+                    .appendSibling(new ChatComponentText("\n\u278D" + EnumChatFormatting.YELLOW + " delete old mod file " + EnumChatFormatting.GOLD + Cowlection.MODNAME.replace(" ", "") + "-" + Cowlection.VERSION + ".jar ").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(false)))
+                    .appendSibling(new ChatComponentText("\n\u278E" + EnumChatFormatting.YELLOW + " start Minecraft again").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(false))));
+        } else if (args[0].equalsIgnoreCase("version")) {
+            main.getVersionChecker().handleVersionStatus(true);
+        } else if (args[0].equalsIgnoreCase("directory") || args[0].equalsIgnoreCase("folder")) {
+            try {
+                Desktop.getDesktop().open(main.getModsDirectory());
+            } catch (IOException e) {
+                e.printStackTrace();
+                throw new MooCommandException("\u2716 An error occurred trying to open the mod's directory. I guess you have to open it manually \u00af\\_(\u30c4)_/\u00af");
+            }
+        } else if (args[0].equalsIgnoreCase("help")) {
+            sendCommandUsage(sender);
+        }
+        // "catch-all" remaining sub-commands
+        else {
+            main.getChatHelper().sendMessage(EnumChatFormatting.RED, "Command " + EnumChatFormatting.DARK_RED + "/" + getCommandName() + " " + args[0] + EnumChatFormatting.RED + " doesn't exist. Use " + EnumChatFormatting.DARK_RED + "/" + getCommandName() + " help " + EnumChatFormatting.RED + "to show command usage.");
+        }
+    }
+
+    private void handleApiKey(String[] args) throws CommandException {
+        if (args.length == 1) {
+            String firstSentence;
+            EnumChatFormatting color;
+            EnumChatFormatting colorSecondary;
+            if (Utils.isValidUuid(MooConfig.moo)) {
+                firstSentence = "You already set your Hypixel API key.";
+                color = EnumChatFormatting.GREEN;
+                colorSecondary = EnumChatFormatting.DARK_GREEN;
+            } else {
+                firstSentence = "You haven't set your Hypixel API key yet.";
+                color = EnumChatFormatting.RED;
+                colorSecondary = EnumChatFormatting.DARK_RED;
+            }
+            main.getChatHelper().sendMessage(color, firstSentence + " Use " + colorSecondary + "/api new" + color + " to request a new API key from Hypixel or use " + colorSecondary + "/" + this.getCommandName() + " apikey <key>" + color + " to manually set your existing API key.");
+        } else {
+            String key = args[1];
+            if (Utils.isValidUuid(key)) {
+                MooConfig.moo = key;
+                main.getConfig().syncFromFields();
+                main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "Updated API key!");
+            } else {
+                throw new SyntaxErrorException("That doesn't look like a valid API key...");
+            }
+        }
+    }
+
+    private void handleStalking(String playerName) throws CommandException {
+        if (!Utils.isValidUuid(MooConfig.moo)) {
+            throw new MooCommandException("You haven't set your Hypixel API key yet. Use " + EnumChatFormatting.DARK_RED + "/api new" + EnumChatFormatting.RED + " to request a new API key from Hypixel or use " + EnumChatFormatting.DARK_RED + "/" + this.getCommandName() + " apikey <key>" + EnumChatFormatting.RED + " to manually set your existing API key.");
+        }
+        main.getChatHelper().sendMessage(EnumChatFormatting.GRAY, "Stalking " + EnumChatFormatting.WHITE + playerName + EnumChatFormatting.GRAY + ". This may take a few seconds.");
+        boolean isBestFriend = main.getFriendsHandler().isBestFriend(playerName, true);
+        if (isBestFriend) {
+            Friend stalkedPlayer = main.getFriendsHandler().getBestFriend(playerName);
+            // we have the uuid already, so stalk the player
+            stalkPlayer(stalkedPlayer);
+        } else {
+            // fetch player uuid
+            ApiUtils.fetchFriendData(playerName, stalkedPlayer -> {
+                if (stalkedPlayer == null) {
+                    throw new ApiContactException("Mojang", "couldn't stalk " + EnumChatFormatting.DARK_RED + playerName);
+                } else if (stalkedPlayer.equals(Friend.FRIEND_NOT_FOUND)) {
+                    throw new PlayerNotFoundException("There is no player with the name " + EnumChatFormatting.DARK_RED + playerName + EnumChatFormatting.RED + ".");
+                } else {
+                    // ... then stalk the player
+                    stalkPlayer(stalkedPlayer);
+                }
+            });
+        }
+    }
+
+    private void stalkPlayer(Friend stalkedPlayer) {
+        ApiUtils.fetchPlayerStatus(stalkedPlayer, hyStalking -> {
+            if (hyStalking != null && hyStalking.isSuccess()) {
+                HyStalkingData.HySession session = hyStalking.getSession();
+                if (session.isOnline()) {
+                    main.getChatHelper().sendMessage(EnumChatFormatting.YELLOW, EnumChatFormatting.GOLD + stalkedPlayer.getName() + EnumChatFormatting.YELLOW + " is currently playing " + EnumChatFormatting.GOLD + session.getGameType() + EnumChatFormatting.YELLOW
+                            + (session.getMode() != null ? ": " + EnumChatFormatting.GOLD + session.getMode() : "")
+                            + (session.getMap() != null ? EnumChatFormatting.YELLOW + " (Map: " + EnumChatFormatting.GOLD + session.getMap() + EnumChatFormatting.YELLOW + ")" : ""));
+                } else {
+                    ApiUtils.fetchPlayerOfflineStatus(stalkedPlayer, slothStalking -> {
+                        if (slothStalking == null) {
+                            throw new ApiContactException("Slothpixel", "couldn't stalk " + EnumChatFormatting.DARK_RED + stalkedPlayer.getName() + EnumChatFormatting.RED + " but they appear to be offline currently.");
+                        } else if (slothStalking.hasNeverJoinedHypixel()) {
+                            main.getChatHelper().sendMessage(EnumChatFormatting.YELLOW, EnumChatFormatting.GOLD + stalkedPlayer.getName() + EnumChatFormatting.YELLOW + " has " + EnumChatFormatting.GOLD + "never " + EnumChatFormatting.YELLOW + "been on Hypixel (or might be nicked).");
+                        } else if (slothStalking.isHidingOnlineStatus()) {
+                            main.getChatHelper().sendMessage(new ChatComponentText(slothStalking.getPlayerNameFormatted()).appendSibling(new ChatComponentText(" is hiding their online status from the Hypixel API. You can see their online status with ").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.YELLOW)))
+                                    .appendSibling(new ChatComponentText("/profile " + slothStalking.getPlayerName()).setChatStyle(new ChatStyle()
+                                            .setColor(EnumChatFormatting.GOLD)
+                                            .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/profile " + slothStalking.getPlayerName()))
+                                            .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Run " + EnumChatFormatting.GOLD + "/profile " + slothStalking.getPlayerName())))))
+                                    .appendSibling(new ChatComponentText(" while you're in a lobby (tooltip of the player head on the top left).").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.YELLOW))));
+                        } else if (slothStalking.hasNeverLoggedOut()) {
+                            Pair<String, String> lastOnline = Utils.getDurationAsWords(slothStalking.getLastLogin());
+
+                            main.getChatHelper().sendMessage(EnumChatFormatting.YELLOW, slothStalking.getPlayerNameFormatted() + EnumChatFormatting.YELLOW + " was last online " + EnumChatFormatting.GOLD + lastOnline.first() + EnumChatFormatting.YELLOW + " ago"
+                                    + (lastOnline.second() != null ? " (" + EnumChatFormatting.GOLD + lastOnline.second() + EnumChatFormatting.YELLOW + ")" : "") + ".");
+                        } else {
+                            Pair<String, String> lastOnline = Utils.getDurationAsWords(slothStalking.getLastLogout());
+
+                            main.getChatHelper().sendMessage(EnumChatFormatting.YELLOW, slothStalking.getPlayerNameFormatted() + EnumChatFormatting.YELLOW + " is " + EnumChatFormatting.GOLD + "offline" + EnumChatFormatting.YELLOW + " for " + EnumChatFormatting.GOLD + lastOnline.first() + EnumChatFormatting.YELLOW
+                                    + ((lastOnline.second() != null || slothStalking.getLastGame() != null) ? (" ("
+                                    + (lastOnline.second() != null ? EnumChatFormatting.GOLD + lastOnline.second() + EnumChatFormatting.YELLOW : "") // = last online date
+                                    + (lastOnline.second() != null && slothStalking.getLastGame() != null ? "; " : "") // = delimiter
+                                    + (slothStalking.getLastGame() != null ? "last played gamemode: " + EnumChatFormatting.GOLD + slothStalking.getLastGame() + EnumChatFormatting.YELLOW : "") // = last gamemode
+                                    + ")") : "") + ".");
+                        }
+                    });
+                }
+            } else {
+                String cause = (hyStalking != null) ? hyStalking.getCause() : null;
+                throw new ApiContactException("Hypixel", "couldn't stalk " + EnumChatFormatting.DARK_RED + stalkedPlayer.getName() + EnumChatFormatting.RED + (cause != null ? " (Reason: " + EnumChatFormatting.DARK_RED + cause + EnumChatFormatting.RED + ")" : "") + ".");
+            }
+        });
+    }
+
+    private void handleStalkingSkyBlock(String playerName) throws CommandException {
+        if (!Utils.isValidUuid(MooConfig.moo)) {
+            throw new MooCommandException("You haven't set your Hypixel API key yet. Use " + EnumChatFormatting.DARK_RED + "/api new" + EnumChatFormatting.RED + " to request a new API key from Hypixel or use " + EnumChatFormatting.DARK_RED + "/" + this.getCommandName() + " apikey <key>" + EnumChatFormatting.RED + " to manually set your existing API key.");
+        }
+        main.getChatHelper().sendMessage(EnumChatFormatting.GRAY, "Stalking " + EnumChatFormatting.WHITE + playerName + EnumChatFormatting.GRAY + "'s SkyBlock stats. This may take a few seconds.");
+        boolean isBestFriend = main.getFriendsHandler().isBestFriend(playerName, true);
+        if (isBestFriend) {
+            Friend stalkedPlayer = main.getFriendsHandler().getBestFriend(playerName);
+            // we have the uuid already, so stalk the player
+            stalkSkyBlockStats(stalkedPlayer);
+        } else {
+            // fetch player uuid
+            ApiUtils.fetchFriendData(playerName, stalkedPlayer -> {
+                if (stalkedPlayer == null) {
+                    throw new ApiContactException("Mojang", "couldn't stalk " + EnumChatFormatting.DARK_RED + playerName);
+                } else if (stalkedPlayer.equals(Friend.FRIEND_NOT_FOUND)) {
+                    throw new PlayerNotFoundException("There is no player with the name " + EnumChatFormatting.DARK_RED + playerName + EnumChatFormatting.RED + ".");
+                } else {
+                    // ... then stalk the player
+                    stalkSkyBlockStats(stalkedPlayer);
+                }
+            });
+        }
+    }
+
+    private void stalkSkyBlockStats(Friend stalkedPlayer) {
+        ApiUtils.fetchSkyBlockStats(stalkedPlayer, hySBStalking -> {
+            if (hySBStalking != null && hySBStalking.isSuccess()) {
+                HySkyBlockStats.Profile activeProfile = hySBStalking.getActiveProfile(stalkedPlayer.getUuid());
+
+                if (activeProfile == null) {
+                    throw new MooCommandException("Looks like " + EnumChatFormatting.DARK_RED + stalkedPlayer.getName() + EnumChatFormatting.RED + " hasn't played SkyBlock yet.");
+                }
+
+                String highestSkill = null;
+                int highestLevel = -1;
+
+                MooChatComponent skillLevels = new MooChatComponent("Skill levels:").gold();
+                HySkyBlockStats.Profile.Member member = activeProfile.getMember(stalkedPlayer.getUuid());
+                for (Map.Entry<HySkyBlockStats.SkillLevel, Double> entry : member.getSkills().entrySet()) {
+                    String skill = Utils.fancyCase(entry.getKey().name());
+                    int level = entry.getKey().getLevel(entry.getValue());
+                    if (level > 0) {
+                        String skillLevel = MooConfig.useRomanNumerals() ? Utils.convertArabicToRoman(level) : String.valueOf(level);
+                        skillLevels.appendFreshSibling(new MooChatComponent.KeyValueTooltipComponent(skill, skillLevel));
+                    }
+
+                    if (level > highestLevel) {
+                        highestSkill = skill;
+                        highestLevel = level;
+                    }
+                }
+
+                // output inspired by /profiles hover
+                String coinsBankAndPurse = (activeProfile.getCoinBank() >= 0) ? Utils.formatNumberWithAbbreviations(activeProfile.getCoinBank() + member.getCoinPurse()) : "API access disabled";
+                Pair<String, String> fancyFirstJoined = member.getFancyFirstJoined();
+
+                MooChatComponent wealthHover = new MooChatComponent("Accessible coins:").gold()
+                        .appendFreshSibling(new MooChatComponent.KeyValueTooltipComponent("Purse", Utils.formatNumberWithAbbreviations(member.getCoinPurse())))
+                        .appendFreshSibling(new MooChatComponent.KeyValueTooltipComponent("Bank", (activeProfile.getCoinBank() != -1) ? Utils.formatNumberWithAbbreviations(activeProfile.getCoinBank()) : "API access disabled"));
+                if (activeProfile.coopCount() > 0) {
+                    wealthHover.appendFreshSibling(new ChatComponentText(" "));
+                    wealthHover.appendFreshSibling(new MooChatComponent.KeyValueTooltipComponent("Co-op members", String.valueOf(activeProfile.coopCount())));
+                    wealthHover.appendFreshSibling(new MooChatComponent.KeyValueTooltipComponent("Co-ops' purses sum", Utils.formatNumberWithAbbreviations(activeProfile.getCoopCoinPurses(stalkedPlayer.getUuid()))));
+                }
+
+                MooChatComponent sbStats = new MooChatComponent("SkyBlock stats of " + stalkedPlayer.getName() + " (" + activeProfile.getCuteName() + ")").gold().bold().setUrl("https://sky.lea.moe/stats/" + stalkedPlayer.getName() + "/" + activeProfile.getCuteName(), "Click to view SkyBlock stats on sky.lea.moe")
+                        .appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Coins", coinsBankAndPurse).setHover(wealthHover));
+                if (highestSkill != null) {
+                    if (highestLevel == 0) {
+                        sbStats.appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Highest Skill", "All skills level 0"));
+                    } else {
+                        String highestSkillLevel = MooConfig.useRomanNumerals() ? Utils.convertArabicToRoman(highestLevel) : String.valueOf(highestLevel);
+                        sbStats.appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Highest Skill", highestSkill + " " + highestSkillLevel).setHover(skillLevels));
+                    }
+                } else {
+                    sbStats.appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Highest Skill", "API access disabled"));
+                }
+
+                Pair<Integer, Integer> uniqueMinionsData = activeProfile.getUniqueMinions();
+                String uniqueMinions = String.valueOf(uniqueMinionsData.first());
+                if (uniqueMinionsData.second() > activeProfile.coopCount()) {
+                    // all players have their unique minions api access disabled
+                    uniqueMinions = "API access disabled";
+                } else if (uniqueMinionsData.second() > 0) {
+                    // at least one player has their unique minions api access disabled
+                    uniqueMinions += " or more (" + uniqueMinionsData.second() + "/" + (activeProfile.coopCount() + 1) + " have their API access disabled)";
+                }
+
+                sbStats.appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Unique Minions", uniqueMinions));
+                sbStats.appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Fairy Souls", (member.getFairySoulsCollected() >= 0) ? String.valueOf(member.getFairySoulsCollected()) : "API access disabled"));
+                sbStats.appendFreshSibling(new MooChatComponent.KeyValueChatComponent("Profile age", fancyFirstJoined.first()).setHover(new MooChatComponent.KeyValueTooltipComponent("Join date", fancyFirstJoined.second())));
+
+                main.getChatHelper().sendMessage(sbStats);
+            } else {
+                String cause = (hySBStalking != null) ? hySBStalking.getCause() : null;
+                throw new ApiContactException("Hypixel", "couldn't stalk " + EnumChatFormatting.DARK_RED + stalkedPlayer.getName() + EnumChatFormatting.RED + (cause != null ? " (Reason: " + EnumChatFormatting.DARK_RED + cause + EnumChatFormatting.RED + ")" : "") + ".");
+            }
+        });
+    }
+
+    private void handleBestFriendAdd(String username) throws CommandException {
+        if (!Utils.isValidMcName(username)) {
+            throw new InvalidPlayerNameException(username);
+        }
+
+        // TODO Add check if 'best friend' is on normal friend list
+        if (main.getFriendsHandler().isBestFriend(username, true)) {
+            throw new MooCommandException(EnumChatFormatting.DARK_RED + username + EnumChatFormatting.RED + " is a best friend already.");
+        } else {
+            main.getChatHelper().sendMessage(EnumChatFormatting.GOLD, "Fetching " + EnumChatFormatting.YELLOW + username + EnumChatFormatting.GOLD + "'s unique user id. This may take a few seconds...");
+            // add friend async
+            main.getFriendsHandler().addBestFriend(username);
+        }
+    }
+
+    private void handleBestFriendRemove(String username) throws CommandException {
+        if (!Utils.isValidMcName(username)) {
+            throw new InvalidPlayerNameException(username);
+        }
+
+        boolean removed = main.getFriendsHandler().removeBestFriend(username);
+        if (removed) {
+            main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "Removed " + EnumChatFormatting.DARK_GREEN + username + EnumChatFormatting.GREEN + " from best friends list.");
+        } else {
+            throw new MooCommandException(EnumChatFormatting.DARK_RED + username + EnumChatFormatting.RED + " isn't a best friend.");
+        }
+    }
+
+    private void handleListBestFriends() {
+        Set<String> bestFriends = main.getFriendsHandler().getBestFriends();
+
+        // TODO show fancy gui with list of best friends; maybe with buttons to delete them
+        main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "\u279C Best friends: " + EnumChatFormatting.DARK_GREEN + String.join(EnumChatFormatting.GREEN + ", " + EnumChatFormatting.DARK_GREEN, bestFriends));
+    }
+
+    @Override
+    public String getCommandName() {
+        return "moo";
+    }
+
+    @Override
+    public String getCommandUsage(ICommandSender sender) {
+        return "/" + getCommandName() + " help";
+    }
+
+    private void sendCommandUsage(ICommandSender sender) {
+        IChatComponent usage = new MooChatComponent("\u279C " + Cowlection.MODNAME + " commands:").gold().bold()
+                .appendSibling(createCmdHelpSection(1, "Friends & other players"))
+                .appendSibling(createCmdHelpEntry("stalk", "Get info of player's status"))
+                .appendSibling(createCmdHelpEntry("stalkskyblock", "Get info of player's SkyBlock stats"))
+                .appendSibling(createCmdHelpEntry("analyzeIsland", "Analyze a SkyBlock private island"))
+                .appendSibling(createCmdHelpEntry("add", "Add best friends"))
+                .appendSibling(createCmdHelpEntry("remove", "Remove best friends"))
+                .appendSibling(createCmdHelpEntry("list", "View list of best friends"))
+                .appendSibling(createCmdHelpEntry("nameChangeCheck", "Force a scan for changed names of best friends"))
+                .appendSibling(createCmdHelpEntry("toggle", "Toggle join/leave notifications"))
+                .appendSibling(createCmdHelpSection(2, "Miscellaneous"))
+                .appendSibling(createCmdHelpEntry("config", "Open mod's configuration"))
+                .appendSibling(createCmdHelpEntry("search", "Open Minecraft log search"))
+                .appendSibling(createCmdHelpEntry("guiScale", "Change GUI scale"))
+                .appendSibling(createCmdHelpEntry("shrug", "\u00AF\\_(\u30C4)_/\u00AF")) // ¯\_(ツ)_/¯
+                .appendSibling(createCmdHelpSection(3, "Update mod"))
+                .appendSibling(createCmdHelpEntry("update", "Check for new mod updates"))
+                .appendSibling(createCmdHelpEntry("updateHelp", "Show mod update instructions"))
+                .appendSibling(createCmdHelpEntry("version", "View results of last mod update check"))
+                .appendSibling(createCmdHelpEntry("directory", "Open Minecraft's mods directory"));
+        sender.addChatMessage(usage);
+    }
+
+    private IChatComponent createCmdHelpSection(int nr, String title) {
+        String prefix = Character.toString((char) (0x2789 + nr));
+        return new ChatComponentText("\n").appendSibling(new ChatComponentText(prefix + " " + title).setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GOLD).setBold(true)));
+    }
+
+    private IChatComponent createCmdHelpEntry(String cmd, String usage) {
+        String command = "/" + this.getCommandName() + " " + cmd;
+
+        return new MooChatComponent("\n").reset().appendSibling(new MooChatComponent.KeyValueChatComponent(command, usage, " \u27A1 ").setSuggestCommand(command));
+    }
+
+    @Override
+    public int getRequiredPermissionLevel() {
+        return 0;
+    }
+
+    @Override
+    public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
+        if (args.length == 1) {
+            return getListOfStringsMatchingLastWord(args,
+                    /* friends & other players */ "stalk", "stalkskyblock", "skyblockstalk", "analyzeIsland", "add", "remove", "list", "nameChangeCheck", "toggle",
+                    /* miscellaneous */ "config", "search", "guiscale", "shrug", "apikey",
+                    /* update mod */ "update", "updateHelp", "version", "directory",
+                    /* help */ "help");
+        } else if (args.length == 2 && args[0].equalsIgnoreCase("remove")) {
+            return getListOfStringsMatchingLastWord(args, main.getFriendsHandler().getBestFriends());
+        } else if (args.length == 2 && args[0].toLowerCase().contains("stalk")) { // stalk & stalkskyblock
+            return getListOfStringsMatchingLastWord(args, main.getPlayerCache().getAllNamesSorted());
+        }
+        return null;
+    }
+}
diff --git a/src/main/java/eu/olli/cowlection/command/ShrugCommand.java b/src/main/java/eu/olli/cowlection/command/ShrugCommand.java
new file mode 100644
index 0000000..3d48fac
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/ShrugCommand.java
@@ -0,0 +1,34 @@
+package eu.olli.cowlection.command;
+
+import eu.olli.cowlection.Cowlection;
+import net.minecraft.command.CommandBase;
+import net.minecraft.command.CommandException;
+import net.minecraft.command.ICommandSender;
+
+public class ShrugCommand extends CommandBase {
+    private final Cowlection main;
+
+    public ShrugCommand(Cowlection main) {
+        this.main = main;
+    }
+
+    @Override
+    public String getCommandName() {
+        return "shrug";
+    }
+
+    @Override
+    public String getCommandUsage(ICommandSender sender) {
+        return "/shrug [message]";
+    }
+
+    @Override
+    public void processCommand(ICommandSender sender, String[] args) throws CommandException {
+        main.getChatHelper().sendShrug(args);
+    }
+
+    @Override
+    public int getRequiredPermissionLevel() {
+        return 0;
+    }
+}
diff --git a/src/main/java/eu/olli/cowlection/command/TabCompletableCommand.java b/src/main/java/eu/olli/cowlection/command/TabCompletableCommand.java
new file mode 100644
index 0000000..87b799e
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/TabCompletableCommand.java
@@ -0,0 +1,53 @@
+package eu.olli.cowlection.command;
+
+import eu.olli.cowlection.Cowlection;
+import net.minecraft.client.Minecraft;
+import net.minecraft.command.CommandBase;
+import net.minecraft.command.CommandException;
+import net.minecraft.command.ICommandSender;
+import net.minecraft.util.BlockPos;
+
+import java.util.List;
+
+/**
+ * This is not a real command. Its sole purpose is to add tab completion for usernames to server-side commands that do not provide tab completion for usernames by default.
+ */
+public class TabCompletableCommand extends CommandBase {
+    private final Cowlection main;
+    private final String cmdName;
+
+    public TabCompletableCommand(Cowlection main, String cmdName) {
+        this.main = main;
+        this.cmdName = cmdName;
+    }
+
+    @Override
+    public String getCommandName() {
+        return cmdName;
+    }
+
+    @Override
+    public String getCommandUsage(ICommandSender sender) {
+        return null;
+    }
+
+    @Override
+    public void processCommand(ICommandSender sender, String[] args) throws CommandException {
+        // send client-command to server
+        Minecraft.getMinecraft().thePlayer.sendChatMessage("/" + getCommandName() + " " + CommandBase.buildString(args, 0));
+    }
+
+    @Override
+    public int getRequiredPermissionLevel() {
+        return 0;
+    }
+
+    @Override
+    public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
+        if (args.length == 1 || args.length == 2) {
+            // suggest recently 'seen' usernames as tab-completion options.
+            return getListOfStringsMatchingLastWord(args, main.getPlayerCache().getAllNamesSorted());
+        }
+        return null;
+    }
+}
diff --git a/src/main/java/eu/olli/cowlection/command/exception/ApiContactException.java b/src/main/java/eu/olli/cowlection/command/exception/ApiContactException.java
new file mode 100644
index 0000000..804fa1d
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/exception/ApiContactException.java
@@ -0,0 +1,7 @@
+package eu.olli.cowlection.command.exception;
+
+public class ApiContactException extends MooCommandException {
+    public ApiContactException(String api, String failedAction) {
+        super("Sorry, couldn't contact the " + api + " API and thus " + failedAction);
+    }
+}
diff --git a/src/main/java/eu/olli/cowlection/command/exception/InvalidPlayerNameException.java b/src/main/java/eu/olli/cowlection/command/exception/InvalidPlayerNameException.java
new file mode 100644
index 0000000..3c0c06e
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/exception/InvalidPlayerNameException.java
@@ -0,0 +1,10 @@
+package eu.olli.cowlection.command.exception;
+
+import net.minecraft.command.SyntaxErrorException;
+import net.minecraft.util.EnumChatFormatting;
+
+public class InvalidPlayerNameException extends SyntaxErrorException {
+    public InvalidPlayerNameException(String playerName) {
+        super(EnumChatFormatting.DARK_RED + playerName + EnumChatFormatting.RED + "? This... doesn't look like a valid username.");
+    }
+}
diff --git a/src/main/java/eu/olli/cowlection/command/exception/MooCommandException.java b/src/main/java/eu/olli/cowlection/command/exception/MooCommandException.java
new file mode 100644
index 0000000..0cc55e0
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/exception/MooCommandException.java
@@ -0,0 +1,9 @@
+package eu.olli.cowlection.command.exception;
+
+import net.minecraft.command.CommandException;
+
+public class MooCommandException extends CommandException {
+    public MooCommandException(String msg) {
+        super("cowlection.commands.generic.exception", msg);
+    }
+}
diff --git a/src/main/java/eu/olli/cowlection/command/exception/ThrowingConsumer.java b/src/main/java/eu/olli/cowlection/command/exception/ThrowingConsumer.java
new file mode 100644
index 0000000..a1ed241
--- /dev/null
+++ b/src/main/java/eu/olli/cowlection/command/exception/ThrowingConsumer.java
@@ -0,0 +1,25 @@
+package eu.olli.cowlection.command.exception;
+
+import eu.olli.cowlection.Cowlection;
+import net.minecraft.command.CommandException;
+import net.minecraft.util.ChatComponentTranslation;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.IChatComponent;
+
+import java.util.function.Consumer;
+
+@FunctionalInterface
+public interface ThrowingConsumer<T> extends Consumer<T> {
+    @Override
+    default void accept(T t) {
+        try {
+            acceptThrows(t);
+        } catch (CommandException e) {
+            IChatComponent errorMsg = new ChatComponentTranslation(e.getMessage(), e.getErrorObjects());
+            errorMsg.getChatStyle().setColor(EnumChatFormatting.RED);
+            Cowlection.getInstance().getChatHelper().sendMessage(errorMsg);
+        }
+    }
+
+    void acceptThrows(T t) throws CommandException;
+}