fabric-resource-loader-v0-3.3.1+d4d4122a6f.jar

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    package net.fabricmc.fabric.impl.resource.loader;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import net.fabricmc.fabric.api.resource.ModResourcePack;
import net.fabricmc.fabric.impl.base.toposort.NodeSorting;
import net.fabricmc.fabric.impl.base.toposort.SortableNode;

public class ModResourcePackSorter {
   private final Object lock = new Object();
   private ModResourcePack[] packs = new ModResourcePack[0];
   private final Map<String, LoadPhaseData> phases = new LinkedHashMap();
   private final List<LoadPhaseData> sortedPhases = new ArrayList();

   ModResourcePackSorter() {
   }

   public List<ModResourcePack> getPacks() {
      return Collections.unmodifiableList(Arrays.asList(this.packs));
   }

   public void addPack(ModResourcePack pack) {
      Objects.requireNonNull(pack, "Can't register a null pack");
      String modId = pack.method_14409();
      Objects.requireNonNull(modId, "Can't register a pack without a mod id");
      synchronized(this.lock) {
         this.getOrCreatePhase(modId, true).addPack(pack);
         this.rebuildPackList(this.packs.length + 1);
      }
   }

   private LoadPhaseData getOrCreatePhase(String id, boolean sortIfCreate) {
      LoadPhaseData phase = (LoadPhaseData)this.phases.get(id);
      if (phase == null) {
         phase = new LoadPhaseData(id);
         this.phases.put(id, phase);
         this.sortedPhases.add(phase);
         if (sortIfCreate) {
            NodeSorting.sort(this.sortedPhases, "mod resource packs", Comparator.comparing((data) -> data.modId));
         }
      }

      return phase;
   }

   private void rebuildPackList(int newLength) {
      if (this.sortedPhases.size() == 1) {
         this.packs = ((LoadPhaseData)this.sortedPhases.getFirst()).packs;
      } else {
         ModResourcePack[] newHandlers = new ModResourcePack[newLength];
         int newHandlersIndex = 0;

         for(LoadPhaseData existingPhase : this.sortedPhases) {
            int length = existingPhase.packs.length;
            System.arraycopy(existingPhase.packs, 0, newHandlers, newHandlersIndex, length);
            newHandlersIndex += length;
         }

         this.packs = newHandlers;
      }

   }

   public void addLoadOrdering(String firstPhase, String secondPhase, ModResourcePackUtil.Order order) {
      Objects.requireNonNull(firstPhase, "Tried to add an ordering for a null phase.");
      Objects.requireNonNull(secondPhase, "Tried to add an ordering for a null phase.");
      if (firstPhase.equals(secondPhase)) {
         throw new IllegalArgumentException("Tried to add a phase that depends on itself.");
      } else {
         synchronized(this.lock) {
            LoadPhaseData first = this.getOrCreatePhase(firstPhase, false);
            LoadPhaseData second = this.getOrCreatePhase(secondPhase, false);
            switch (order) {
               case BEFORE -> ModResourcePackSorter.LoadPhaseData.link(first, second);
               case AFTER -> ModResourcePackSorter.LoadPhaseData.link(second, first);
            }

            NodeSorting.sort(this.sortedPhases, "event phases", Comparator.comparing((data) -> data.modId));
            this.rebuildPackList(this.packs.length);
         }
      }
   }

   public static class LoadPhaseData extends SortableNode<LoadPhaseData> {
      final String modId;
      ModResourcePack[] packs;

      LoadPhaseData(String modId) {
         this.modId = modId;
         this.packs = new ModResourcePack[0];
      }

      void addPack(ModResourcePack pack) {
         int oldLength = this.packs.length;
         this.packs = (ModResourcePack[])Arrays.copyOf(this.packs, oldLength + 1);
         this.packs[oldLength] = pack;
      }

      protected String getDescription() {
         return this.modId;
      }
   }
}
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