Code/net/minecraft/client/gui/screens/social/SocialInteractionsPlayerList.java

package net.minecraft.client.gui.screens.social;

import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.mojang.authlib.GameProfile;
import it.unimi.dsi.fastutil.objects.ObjectLinkedOpenHashSet;
import java.util.Collection;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import javax.annotation.Nullable;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiGraphics;
import net.minecraft.client.gui.components.ContainerObjectSelectionList;
import net.minecraft.client.multiplayer.ClientPacketListener;
import net.minecraft.client.multiplayer.PlayerInfo;
import net.minecraft.client.multiplayer.chat.ChatLog;
import net.minecraft.client.multiplayer.chat.LoggedChatMessage;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

@OnlyIn(Dist.CLIENT)
public class SocialInteractionsPlayerList extends ContainerObjectSelectionList<PlayerEntry> {
    private final SocialInteractionsScreen socialInteractionsScreen;
    private final List<PlayerEntry> players = Lists.newArrayList();
    @Nullable
    private String filter;

    public SocialInteractionsPlayerList(SocialInteractionsScreen p_100697_, Minecraft p_100698_, int p_100699_, int p_100700_, int p_100701_, int p_100702_) {
        super(p_100698_, p_100699_, p_100700_, p_100701_, p_100702_);
        this.socialInteractionsScreen = p_100697_;
    }

    @Override
    protected void renderListBackground(GuiGraphics p_329536_) {
    }

    @Override
    protected void renderListSeparators(GuiGraphics p_334427_) {
    }

    @Override
    protected void enableScissor(GuiGraphics p_281892_) {
        p_281892_.enableScissor(this.getX(), this.getY() + 4, this.getRight(), this.getBottom());
    }

    public void updatePlayerList(Collection<UUID> p_240798_, double p_240792_, boolean p_240829_) {
        Map<UUID, PlayerEntry> map = new HashMap<>();
        this.addOnlinePlayers(p_240798_, map);
        this.updatePlayersFromChatLog(map, p_240829_);
        this.updateFiltersAndScroll(map.values(), p_240792_);
    }

    private void addOnlinePlayers(Collection<UUID> p_240813_, Map<UUID, PlayerEntry> p_240796_) {
        ClientPacketListener clientpacketlistener = this.minecraft.player.connection;

        for (UUID uuid : p_240813_) {
            PlayerInfo playerinfo = clientpacketlistener.getPlayerInfo(uuid);
            if (playerinfo != null) {
                boolean flag = playerinfo.hasVerifiableChat();
                p_240796_.put(uuid, new PlayerEntry(this.minecraft, this.socialInteractionsScreen, uuid, playerinfo.getProfile().getName(), playerinfo::getSkin, flag));
            }
        }
    }

    private void updatePlayersFromChatLog(Map<UUID, PlayerEntry> p_240780_, boolean p_240827_) {
        for (GameProfile gameprofile : collectProfilesFromChatLog(this.minecraft.getReportingContext().chatLog())) {
            PlayerEntry playerentry;
            if (p_240827_) {
                playerentry = p_240780_.computeIfAbsent(
                    gameprofile.getId(),
                    p_296219_ -> {
                        PlayerEntry playerentry1 = new PlayerEntry(
                            this.minecraft, this.socialInteractionsScreen, gameprofile.getId(), gameprofile.getName(), this.minecraft.getSkinManager().lookupInsecure(gameprofile), true
                        );
                        playerentry1.setRemoved(true);
                        return playerentry1;
                    }
                );
            } else {
                playerentry = p_240780_.get(gameprofile.getId());
                if (playerentry == null) {
                    continue;
                }
            }

            playerentry.setHasRecentMessages(true);
        }
    }

    private static Collection<GameProfile> collectProfilesFromChatLog(ChatLog p_250748_) {
        Set<GameProfile> set = new ObjectLinkedOpenHashSet<>();

        for (int i = p_250748_.end(); i >= p_250748_.start(); i--) {
            if (p_250748_.lookup(i) instanceof LoggedChatMessage.Player loggedchatmessage$player && loggedchatmessage$player.message().hasSignature()) {
                set.add(loggedchatmessage$player.profile());
            }
        }

        return set;
    }

    private void sortPlayerEntries() {
        this.players.sort(Comparator.<PlayerEntry, Integer>comparing(p_240745_ -> {
            if (this.minecraft.isLocalPlayer(p_240745_.getPlayerId())) {
                return 0;
            } else if (this.minecraft.getReportingContext().hasDraftReportFor(p_240745_.getPlayerId())) {
                return 1;
            } else if (p_240745_.getPlayerId().version() == 2) {
                return 4;
            } else {
                return p_240745_.hasRecentMessages() ? 2 : 3;
            }
        }).thenComparing(p_240744_ -> {
            if (!p_240744_.getPlayerName().isBlank()) {
                int i = p_240744_.getPlayerName().codePointAt(0);
                if (i == 95 || i >= 97 && i <= 122 || i >= 65 && i <= 90 || i >= 48 && i <= 57) {
                    return 0;
                }
            }

            return 1;
        }).thenComparing(PlayerEntry::getPlayerName, String::compareToIgnoreCase));
    }

    private void updateFiltersAndScroll(Collection<PlayerEntry> p_240809_, double p_240830_) {
        this.players.clear();
        this.players.addAll(p_240809_);
        this.sortPlayerEntries();
        this.updateFilteredPlayers();
        this.replaceEntries(this.players);
        this.setScrollAmount(p_240830_);
    }

    private void updateFilteredPlayers() {
        if (this.filter != null) {
            this.players.removeIf(p_100710_ -> !p_100710_.getPlayerName().toLowerCase(Locale.ROOT).contains(this.filter));
            this.replaceEntries(this.players);
        }
    }

    public void setFilter(String p_100718_) {
        this.filter = p_100718_;
    }

    public boolean isEmpty() {
        return this.players.isEmpty();
    }

    public void addPlayer(PlayerInfo p_100715_, SocialInteractionsScreen.Page p_100716_) {
        UUID uuid = p_100715_.getProfile().getId();

        for (PlayerEntry playerentry : this.players) {
            if (playerentry.getPlayerId().equals(uuid)) {
                playerentry.setRemoved(false);
                return;
            }
        }

        if ((p_100716_ == SocialInteractionsScreen.Page.ALL || this.minecraft.getPlayerSocialManager().shouldHideMessageFrom(uuid))
            && (Strings.isNullOrEmpty(this.filter) || p_100715_.getProfile().getName().toLowerCase(Locale.ROOT).contains(this.filter))) {
            boolean flag = p_100715_.hasVerifiableChat();
            PlayerEntry playerentry1 = new PlayerEntry(
                this.minecraft, this.socialInteractionsScreen, p_100715_.getProfile().getId(), p_100715_.getProfile().getName(), p_100715_::getSkin, flag
            );
            this.addEntry(playerentry1);
            this.players.add(playerentry1);
        }
    }

    public void removePlayer(UUID p_100723_) {
        for (PlayerEntry playerentry : this.players) {
            if (playerentry.getPlayerId().equals(p_100723_)) {
                playerentry.setRemoved(true);
                return;
            }
        }
    }
}