package androidx.recyclerview.widget;

import android.os.Handler;
import android.os.Looper;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.recyclerview.widget.AsyncDifferConfig;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.RecyclerView;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.Executor;
public class AsyncListDiffer<T> {
    private static final Executor sMainThreadExecutor = new MainThreadExecutor();
    public final AsyncDifferConfig<T> mConfig;
    @Nullable
    private List<T> mList;
    private final List<ListListener<T>> mListeners;
    public Executor mMainThreadExecutor;
    public int mMaxScheduledGeneration;
    @NonNull
    private List<T> mReadOnlyList;
    private final ListUpdateCallback mUpdateCallback;

    /* renamed from: androidx.recyclerview.widget.AsyncListDiffer$1  reason: invalid class name */
    public class AnonymousClass1 implements Runnable {
        public final /* synthetic */ Runnable val$commitCallback;
        public final /* synthetic */ List val$newList;
        public final /* synthetic */ List val$oldList;
        public final /* synthetic */ int val$runGeneration;

        /* renamed from: androidx.recyclerview.widget.AsyncListDiffer$1$1  reason: invalid class name */
        public class AnonymousClass1 extends DiffUtil.Callback {
            public AnonymousClass1() {
            }

            @Override // androidx.recyclerview.widget.DiffUtil.Callback
            public boolean areContentsTheSame(int i, int i2) {
                Object obj = AnonymousClass1.this.val$oldList.get(i);
                Object obj2 = AnonymousClass1.this.val$newList.get(i2);
                if (obj != null && obj2 != null) {
                    return AsyncListDiffer.this.mConfig.getDiffCallback().areContentsTheSame(obj, obj2);
                }
                if (obj == null && obj2 == null) {
                    return true;
                }
                throw new AssertionError();
            }

            @Override // androidx.recyclerview.widget.DiffUtil.Callback
            public boolean areItemsTheSame(int i, int i2) {
                Object obj = AnonymousClass1.this.val$oldList.get(i);
                Object obj2 = AnonymousClass1.this.val$newList.get(i2);
                return (obj == null || obj2 == null) ? obj == null && obj2 == null : AsyncListDiffer.this.mConfig.getDiffCallback().areItemsTheSame(obj, obj2);
            }

            @Override // androidx.recyclerview.widget.DiffUtil.Callback
            @Nullable
            public Object getChangePayload(int i, int i2) {
                Object obj = AnonymousClass1.this.val$oldList.get(i);
                Object obj2 = AnonymousClass1.this.val$newList.get(i2);
                if (obj != null && obj2 != null) {
                    return AsyncListDiffer.this.mConfig.getDiffCallback().getChangePayload(obj, obj2);
                }
                throw new AssertionError();
            }

            @Override // androidx.recyclerview.widget.DiffUtil.Callback
            public int getNewListSize() {
                return AnonymousClass1.this.val$newList.size();
            }

            @Override // androidx.recyclerview.widget.DiffUtil.Callback
            public int getOldListSize() {
                return AnonymousClass1.this.val$oldList.size();
            }
        }

        /* renamed from: androidx.recyclerview.widget.AsyncListDiffer$1$2  reason: invalid class name */
        public class AnonymousClass2 implements Runnable {
            public final /* synthetic */ DiffUtil.DiffResult val$result;

            public AnonymousClass2(DiffUtil.DiffResult diffResult) {
                this.val$result = diffResult;
            }

            @Override // java.lang.Runnable
            public void run() {
                AnonymousClass1 r0 = AnonymousClass1.this;
                AsyncListDiffer asyncListDiffer = AsyncListDiffer.this;
                if (asyncListDiffer.mMaxScheduledGeneration == r0.val$runGeneration) {
                    asyncListDiffer.latchList(r0.val$newList, this.val$result, r0.val$commitCallback);
                }
            }
        }

        public AnonymousClass1(List list, List list2, int i, Runnable runnable) {
            this.val$oldList = list;
            this.val$newList = list2;
            this.val$runGeneration = i;
            this.val$commitCallback = runnable;
        }

        @Override // java.lang.Runnable
        public void run() {
            AsyncListDiffer.this.mMainThreadExecutor.execute(new AnonymousClass2(DiffUtil.calculateDiff(new AnonymousClass1())));
        }
    }

    public interface ListListener<T> {
        void onCurrentListChanged(@NonNull List<T> list, @NonNull List<T> list2);
    }

    public static class MainThreadExecutor implements Executor {
        public final Handler mHandler = new Handler(Looper.getMainLooper());

        @Override // java.util.concurrent.Executor
        public void execute(@NonNull Runnable runnable) {
            this.mHandler.post(runnable);
        }
    }

    public AsyncListDiffer(@NonNull ListUpdateCallback listUpdateCallback, @NonNull AsyncDifferConfig<T> asyncDifferConfig) {
        this.mListeners = new CopyOnWriteArrayList();
        this.mReadOnlyList = Collections.emptyList();
        this.mUpdateCallback = listUpdateCallback;
        this.mConfig = asyncDifferConfig;
        if (asyncDifferConfig.getMainThreadExecutor() != null) {
            this.mMainThreadExecutor = asyncDifferConfig.getMainThreadExecutor();
        } else {
            this.mMainThreadExecutor = sMainThreadExecutor;
        }
    }

    public AsyncListDiffer(@NonNull RecyclerView.Adapter adapter, @NonNull DiffUtil.ItemCallback<T> itemCallback) {
        this(new AdapterListUpdateCallback(adapter), new AsyncDifferConfig.Builder(itemCallback).build());
    }

    private void onCurrentListChanged(@NonNull List<T> list, @Nullable Runnable runnable) {
        for (ListListener<T> listListener : this.mListeners) {
            listListener.onCurrentListChanged(list, this.mReadOnlyList);
        }
        if (runnable != null) {
            runnable.run();
        }
    }

    public void addListListener(@NonNull ListListener<T> listListener) {
        this.mListeners.add(listListener);
    }

    @NonNull
    public List<T> getCurrentList() {
        return this.mReadOnlyList;
    }

    public void latchList(@NonNull List<T> list, @NonNull DiffUtil.DiffResult diffResult, @Nullable Runnable runnable) {
        List<T> list2 = this.mReadOnlyList;
        this.mList = list;
        this.mReadOnlyList = Collections.unmodifiableList(list);
        diffResult.dispatchUpdatesTo(this.mUpdateCallback);
        onCurrentListChanged(list2, runnable);
    }

    public void removeListListener(@NonNull ListListener<T> listListener) {
        this.mListeners.remove(listListener);
    }

    public void submitList(@Nullable List<T> list) {
        submitList(list, null);
    }

    public void submitList(@Nullable List<T> list, @Nullable Runnable runnable) {
        int i = this.mMaxScheduledGeneration + 1;
        this.mMaxScheduledGeneration = i;
        List<T> list2 = this.mList;
        if (list != list2) {
            List<T> list3 = this.mReadOnlyList;
            if (list == null) {
                int size = list2.size();
                this.mList = null;
                this.mReadOnlyList = Collections.emptyList();
                this.mUpdateCallback.onRemoved(0, size);
                onCurrentListChanged(list3, runnable);
            } else if (list2 == null) {
                this.mList = list;
                this.mReadOnlyList = Collections.unmodifiableList(list);
                this.mUpdateCallback.onInserted(0, list.size());
                onCurrentListChanged(list3, runnable);
            } else {
                this.mConfig.getBackgroundThreadExecutor().execute(new AnonymousClass1(list2, list, i, runnable));
            }
        } else if (runnable != null) {
            runnable.run();
        }
    }
}