// 
// Decompiled by Procyon v0.6.0
// 

package com.hypixel.hytale.builtin.hytalegenerator.newsystem;

import com.hypixel.hytale.server.core.universe.world.storage.ChunkStore;
import it.unimi.dsi.fastutil.longs.LongIterator;
import java.util.concurrent.CompletableFuture;
import com.hypixel.hytale.builtin.hytalegenerator.LoggerUtil;
import it.unimi.dsi.fastutil.longs.LongArraySet;
import com.hypixel.hytale.math.util.ChunkUtil;
import com.hypixel.hytale.builtin.hytalegenerator.bounds.Bounds3i;
import it.unimi.dsi.fastutil.longs.LongSet;
import com.hypixel.hytale.server.core.command.system.CommandSender;
import javax.annotation.Nonnull;
import com.hypixel.hytale.server.core.universe.world.World;

public class NViewport
{
    @Nonnull
    private final World world;
    @Nonnull
    private final CommandSender sender;
    @Nonnull
    private final LongSet affectedChunkIndices;
    
    public NViewport(@Nonnull final Bounds3i viewportBounds_voxelGrid, @Nonnull final World world, @Nonnull final CommandSender sender) {
        this.world = world;
        this.sender = sender;
        final int minCX = ChunkUtil.chunkCoordinate(viewportBounds_voxelGrid.min.x);
        final int minCZ = ChunkUtil.chunkCoordinate(viewportBounds_voxelGrid.min.z);
        final int maxCX = ChunkUtil.chunkCoordinate(viewportBounds_voxelGrid.max.x);
        final int maxCZ = ChunkUtil.chunkCoordinate(viewportBounds_voxelGrid.max.z);
        this.affectedChunkIndices = new LongArraySet();
        for (int x = minCX; x <= maxCX; ++x) {
            for (int z = minCZ; z <= maxCZ; ++z) {
                final long chunkIndex = ChunkUtil.indexChunk(x, z);
                this.affectedChunkIndices.add(chunkIndex);
            }
        }
    }
    
    public void refresh() {
        LoggerUtil.getLogger().info("Refreshing viewport...");
        final CompletableFuture<?>[] futures = new CompletableFuture[this.affectedChunkIndices.size()];
        int i = 0;
        for (final long chunkIndex : this.affectedChunkIndices) {
            final ChunkStore chunkStore = this.world.getChunkStore();
            final CompletableFuture<?> future = chunkStore.getChunkReferenceAsync(chunkIndex, 9);
            futures[i++] = future;
        }
        CompletableFuture.allOf(futures).handle((r, e) -> {
            if (e == null) {
                return r;
            }
            else {
                LoggerUtil.logException("viewport refresh", e);
                return null;
            }
        }).thenRun(() -> LoggerUtil.getLogger().info("Viewport refresh complete."));
    }
}