added some commands to log debug information about pretty pipes and clear invalid caches

src/main/java/de/ellpeck/prettypipes/misc/Events.java

@@ -2,12 +2,20 @@ package de.ellpeck.prettypipes.misc;
 
 import de.ellpeck.prettypipes.PrettyPipes;
 import de.ellpeck.prettypipes.network.PipeNetwork;
+import net.minecraft.commands.Commands;
+import net.minecraft.network.chat.TextComponent;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.level.Level;
 import net.minecraftforge.event.AttachCapabilitiesEvent;
+import net.minecraftforge.event.server.ServerStartingEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
 @Mod.EventBusSubscriber
 public final class Events {
 
@@ -15,4 +23,34 @@ public final class Events {
     public static void onWorldCaps(AttachCapabilitiesEvent<Level> event) {
         event.addCapability(new ResourceLocation(PrettyPipes.ID, "network"), new PipeNetwork(event.getObject()));
     }
+
+    @SubscribeEvent
+    public static void onServerStarting(ServerStartingEvent event) {
+        event.getServer().getCommands().getDispatcher().register(Commands.literal(PrettyPipes.ID).requires(s -> s.hasPermission(2))
+                .then(Commands.literal("dump").executes(c -> {
+                    var source = c.getSource();
+                    var file = Paths.get('_' + PrettyPipes.ID + "dump.txt");
+                    var dump = PipeNetwork.get(source.getLevel()).toString();
+                    try {
+                        Files.writeString(file, dump, StandardCharsets.UTF_8);
+                        source.sendSuccess(new TextComponent("Wrote network dump to file " + file.toAbsolutePath()), true);
+                    } catch (IOException e) {
+                        source.sendFailure(new TextComponent("Failed to write network dump to file " + file.toAbsolutePath()));
+                        return -1;
+                    }
+                    return 0;
+                }))
+                .then(Commands.literal("uncache").executes(c -> {
+                    var source = c.getSource();
+                    PipeNetwork.get(source.getLevel()).clearCaches();
+                    source.sendSuccess(new TextComponent("Cleared all pipe caches in the world"), true);
+                    return 0;
+                }))
+                .then(Commands.literal("unlock").executes(c -> {
+                    var source = c.getSource();
+                    PipeNetwork.get(source.getLevel()).unlock();
+                    source.sendSuccess(new TextComponent("Resolved all network locks in the world"), true);
+                    return 0;
+                })));
+    }
 }

src/main/java/de/ellpeck/prettypipes/network/NetworkLock.java

@@ -51,4 +51,9 @@ public class NetworkLock implements INBTSerializable<CompoundTag> {
     public int hashCode() {
         return Objects.hash(this.lockId);
     }
+
+    @Override
+    public String toString() {
+        return "NetworkLock{" + "location=" + this.location.pipePos + ", stack=" + this.stack + '}';
+    }
 }

src/main/java/de/ellpeck/prettypipes/network/PipeItem.java

@@ -317,6 +317,11 @@ public class PipeItem implements IPipeItem {
         }
     }
 
+    @Override
+    public String toString() {
+        return "PipeItem{" + "stack=" + this.stack + ", x=" + this.x + ", y=" + this.y + ", z=" + this.z + ", startInventory=" + this.startInventory + ", destInventory=" + this.destInventory + '}';
+    }
+
     protected int getModelCount() {
         var i = 1;
         if (this.stack.getCount() > 48) {

src/main/java/de/ellpeck/prettypipes/network/PipeNetwork.java

@@ -245,7 +245,8 @@ public class PipeNetwork implements ICapabilitySerializable<CompoundTag>, GraphL
         var tile = this.tileCache.get(pos);
         if (tile == null || tile.isRemoved()) {
             tile = Utility.getBlockEntity(PipeBlockEntity.class, this.world, pos);
-            this.tileCache.put(pos, tile);
+            if (tile != null)
+                this.tileCache.put(pos, tile);
         }
         return tile;
     }
@@ -387,6 +388,15 @@ public class PipeNetwork implements ICapabilitySerializable<CompoundTag>, GraphL
         return null;
     }
 
+    public void clearCaches() {
+        this.nodeToConnectedNodes.clear();
+        this.tileCache.clear();
+    }
+
+    public void unlock() {
+        this.networkLocks.clear();
+    }
+
     private List<NetworkEdge> createAllEdges(BlockPos pos, BlockState state, boolean ignoreCurrBlocked) {
         this.startProfile("create_all_edges");
         List<NetworkEdge> edges = new ArrayList<>();
@@ -506,6 +516,16 @@ public class PipeNetwork implements ICapabilitySerializable<CompoundTag>, GraphL
     public void vertexRemoved(GraphVertexChangeEvent<BlockPos> e) {
     }
 
+    @Override
+    public String toString() {
+        return "PipeNetwork{" +
+                "\ngraph=" + this.graph +
+                ",\nnodeToConnectedNodes=" + this.nodeToConnectedNodes +
+                ",\ntileCache=" + this.tileCache.keySet() +
+                ",\npipeItems=" + this.pipeItems +
+                ",\nnetworkLocks=" + this.networkLocks + '}';
+    }
+
     public void startProfile(String name) {
         this.world.getProfiler().push(() -> PrettyPipes.ID + ":pipe_network_" + name);
     }