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package com.thatgravyboat.skyblockhud.api;

import static com.thatgravyboat.skyblockhud.ComponentHandler.SCOREBOARD_CHARACTERS;

import com.thatgravyboat.skyblockhud.Utils;
import com.thatgravyboat.skyblockhud.api.events.SidebarLineUpdateEvent;
import com.thatgravyboat.skyblockhud.api.events.SidebarPostEvent;
import com.thatgravyboat.skyblockhud.api.events.SidebarPreGetEvent;
import java.util.*;
import java.util.stream.Collectors;
import net.minecraft.client.Minecraft;
import net.minecraft.scoreboard.Score;
import net.minecraft.scoreboard.ScoreObjective;
import net.minecraft.scoreboard.ScorePlayerTeam;
import net.minecraft.scoreboard.Scoreboard;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent;

public class LeaderboardGetter {

    private static Map<Integer, String> cachedScores = new HashMap<>();
    private static List<String> cachedScoresList = new ArrayList<>();

    private static int ticks = 0;

    @SubscribeEvent
    public void onClientUpdate(TickEvent.ClientTickEvent event) {
        if (event.phase.equals(TickEvent.Phase.START)) return;
        ticks++;
        if (ticks % 5 != 0) return;

        Minecraft mc = Minecraft.getMinecraft();
        if (mc.theWorld != null) {
            Scoreboard scoreboard = mc.theWorld.getScoreboard();
            ScoreObjective sidebarObjective = scoreboard.getObjectiveInDisplaySlot(1);

            if (
                sidebarObjective != null &&
                !MinecraftForge.EVENT_BUS.post(new SidebarPreGetEvent(scoreboard, sidebarObjective))
            ) {
                Collection<Score> scoreList = sidebarObjective.getScoreboard().getSortedScores(sidebarObjective);
                Map<Integer, String> scores = scoreList
                    .stream()
                    .collect(Collectors.toMap(Score::getScorePoints, this::getLine));

                if (!cachedScores.equals(scores)) {
                    scores.forEach(
                        (score, name) -> {
                            if (cachedScores.get(score) == null || !cachedScores.get(score).equals(name)) {
                                MinecraftForge.EVENT_BUS.post(
                                    new SidebarLineUpdateEvent(
                                        name,
                                        SCOREBOARD_CHARACTERS.matcher(name).replaceAll("").trim(),
                                        score,
                                        scores.size(),
                                        scoreboard,
                                        sidebarObjective
                                    )
                                );
                            }
                        }
                    );
                    cachedScores = scores;
                    cachedScoresList =
                        scores
                            .values()
                            .stream()
                            .map(name -> SCOREBOARD_CHARACTERS.matcher(name).replaceAll("").trim())
                            .collect(Collectors.toList());
                }
                MinecraftForge.EVENT_BUS.post(new SidebarPostEvent(scoreboard, sidebarObjective, cachedScoresList));
            }
        }
    }

    public String getLine(Score score) {
        ScorePlayerTeam scorePlayerTeam = score.getScoreScoreboard().getPlayersTeam(score.getPlayerName());
        return Utils.removeColor(ScorePlayerTeam.formatPlayerName(scorePlayerTeam, score.getPlayerName()));
    }
}