From 8689aa48bb5fac6b96144c08d49b15359ef141a1 Mon Sep 17 00:00:00 2001
From: Blake Friedman <blakef@meta.com>
Date: Mon, 5 Aug 2024 05:21:36 -0700
Subject: [PATCH] =?UTF-8?q?AdditionalAnimatedNode=20=E2=86=92=20Kotlin?=
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Summary: Changelog: [Android][Changed] AdditionalAnimatedNode.java → Kotlin

Reviewed By: rshest

Differential Revision: D60523059

fbshipit-source-id: de4e60854a03b5a6f061882c03cf191998888015
---
 .../react/animated/AdditionAnimatedNode.java  | 56 -------------------
 .../react/animated/AdditionAnimatedNode.kt    | 52 +++++++++++++++++
 2 files changed, 52 insertions(+), 56 deletions(-)
 delete mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.java
 create mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.kt

diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.java
deleted file mode 100644
index a0eba369227..00000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.java
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react.animated;
-
-import com.facebook.react.bridge.JSApplicationCausedNativeException;
-import com.facebook.react.bridge.ReadableArray;
-import com.facebook.react.bridge.ReadableMap;
-
-/**
- * Animated node that plays a role of value aggregator. It takes two or more value nodes as an input
- * and outputs a sum of values outputted by those nodes.
- */
-/*package*/ class AdditionAnimatedNode extends ValueAnimatedNode {
-
-  private final NativeAnimatedNodesManager mNativeAnimatedNodesManager;
-  private final int[] mInputNodes;
-
-  public AdditionAnimatedNode(
-      ReadableMap config, NativeAnimatedNodesManager nativeAnimatedNodesManager) {
-    mNativeAnimatedNodesManager = nativeAnimatedNodesManager;
-    ReadableArray inputNodes = config.getArray("input");
-    mInputNodes = new int[inputNodes.size()];
-    for (int i = 0; i < mInputNodes.length; i++) {
-      mInputNodes[i] = inputNodes.getInt(i);
-    }
-  }
-
-  @Override
-  public void update() {
-    nodeValue = 0;
-    for (int i = 0; i < mInputNodes.length; i++) {
-      AnimatedNode animatedNode = mNativeAnimatedNodesManager.getNodeById(mInputNodes[i]);
-      if (animatedNode != null && animatedNode instanceof ValueAnimatedNode) {
-        nodeValue += ((ValueAnimatedNode) animatedNode).getValue();
-      } else {
-        throw new JSApplicationCausedNativeException(
-            "Illegal node ID set as an input for Animated.Add node");
-      }
-    }
-  }
-
-  @Override
-  public String prettyPrint() {
-    return "AdditionAnimatedNode["
-        + tag
-        + "]: input nodes: "
-        + (mInputNodes != null ? mInputNodes.toString() : "null")
-        + " - super: "
-        + super.prettyPrint();
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.kt
new file mode 100644
index 00000000000..fd93cee90ff
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/AdditionAnimatedNode.kt
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.animated
+
+import com.facebook.react.bridge.JSApplicationCausedNativeException
+import com.facebook.react.bridge.ReadableMap
+
+/**
+ * Animated node that plays a role of value aggregator. It takes two or more value nodes as an input
+ * and outputs a sum of values outputted by those nodes.
+ */
+internal class AdditionAnimatedNode(
+    config: ReadableMap,
+    private val nativeAnimatedNodesManager: NativeAnimatedNodesManager
+) : ValueAnimatedNode() {
+
+  private val inputNodes: IntArray
+
+  init {
+    val input = config.getArray("input")
+    inputNodes =
+        if (input == null) {
+          IntArray(0)
+        } else {
+          IntArray(input.size()) { i -> input.getInt(i) }
+        }
+  }
+
+  override fun update() {
+    nodeValue = 0.0
+    nodeValue +=
+        inputNodes.fold(
+            0.0,
+            { acc, id ->
+              val animatedNode = nativeAnimatedNodesManager.getNodeById(id)
+              if (animatedNode is ValueAnimatedNode) {
+                acc + animatedNode.getValue()
+              } else {
+                throw JSApplicationCausedNativeException(
+                    "Illegal node ID set as an input for Animated.Add node")
+              }
+            })
+  }
+
+  override fun prettyPrint(): String =
+      "AdditionAnimatedNode[${tag}]: input nodes: ${inputNodes.joinToString()} - super: ${super.prettyPrint()}"
+}