From 58a4e2ef149b00a5c7e70ac6264bbaec671cc9d9 Mon Sep 17 00:00:00 2001
From: Ruslan Shestopalyuk <rshest@meta.com>
Date: Sat, 27 Jul 2024 12:34:34 -0700
Subject: [PATCH] Convert DiffClampAnimatedNode to Kotlin (#45716)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/45716

# Changelog:
[Internal] -

As in the title.

Reviewed By: steelrooter

Differential Revision: D60283709

fbshipit-source-id: 110e9ee9deecd0c39575b94b0604ad3fa9a9b96e
---
 .../react/animated/DiffClampAnimatedNode.java | 66 -------------------
 .../react/animated/DiffClampAnimatedNode.kt   | 51 ++++++++++++++
 2 files changed, 51 insertions(+), 66 deletions(-)
 delete mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.java
 create mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.kt

diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.java
deleted file mode 100644
index 4ed74b8ccfa..00000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.java
+++ /dev/null
@@ -1,66 +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.infer.annotation.Nullsafe;
-import com.facebook.react.bridge.JSApplicationCausedNativeException;
-import com.facebook.react.bridge.ReadableMap;
-
-/*package*/ @Nullsafe(Nullsafe.Mode.LOCAL)
-class DiffClampAnimatedNode extends ValueAnimatedNode {
-  private final NativeAnimatedNodesManager mNativeAnimatedNodesManager;
-  private final int mInputNodeTag;
-  private final double mMin;
-  private final double mMax;
-
-  private double mLastValue;
-
-  public DiffClampAnimatedNode(
-      ReadableMap config, NativeAnimatedNodesManager nativeAnimatedNodesManager) {
-    mNativeAnimatedNodesManager = nativeAnimatedNodesManager;
-    mInputNodeTag = config.getInt("input");
-    mMin = config.getDouble("min");
-    mMax = config.getDouble("max");
-
-    mValue = mLastValue = 0;
-  }
-
-  @Override
-  public void update() {
-    double value = getInputNodeValue();
-
-    double diff = value - mLastValue;
-    mLastValue = value;
-    mValue = Math.min(Math.max(mValue + diff, mMin), mMax);
-  }
-
-  private double getInputNodeValue() {
-    AnimatedNode animatedNode = mNativeAnimatedNodesManager.getNodeById(mInputNodeTag);
-    if (animatedNode == null || !(animatedNode instanceof ValueAnimatedNode)) {
-      throw new JSApplicationCausedNativeException(
-          "Illegal node ID set as an input for Animated.DiffClamp node");
-    }
-
-    return ((ValueAnimatedNode) animatedNode).getValue();
-  }
-
-  public String prettyPrint() {
-    return "DiffClampAnimatedNode["
-        + mTag
-        + "]: InputNodeTag: "
-        + mInputNodeTag
-        + " min: "
-        + mMin
-        + " max: "
-        + mMax
-        + " lastValue: "
-        + mLastValue
-        + " super: "
-        + super.prettyPrint();
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.kt
new file mode 100644
index 00000000000..8a9501e47f0
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/DiffClampAnimatedNode.kt
@@ -0,0 +1,51 @@
+/*
+ * 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
+import kotlin.math.max
+import kotlin.math.min
+
+internal class DiffClampAnimatedNode(
+    config: ReadableMap,
+    private val nativeAnimatedNodesManager: NativeAnimatedNodesManager
+) : ValueAnimatedNode() {
+  private val inputNodeTag: Int
+  private val minValue: Double
+  private val maxValue: Double
+  private var lastValue: Double = 0.0
+
+  init {
+    inputNodeTag = config.getInt("input")
+    minValue = config.getDouble("min")
+    maxValue = config.getDouble("max")
+    mValue = lastValue
+  }
+
+  override fun update() {
+    val value = inputNodeValue
+    val diff = value - lastValue
+    lastValue = value
+    mValue = min(max(mValue + diff, minValue), maxValue)
+  }
+
+  private val inputNodeValue: Double
+    get() {
+      val animatedNode = nativeAnimatedNodesManager.getNodeById(inputNodeTag)
+      if (animatedNode == null || animatedNode !is ValueAnimatedNode) {
+        throw JSApplicationCausedNativeException(
+            "Illegal node ID set as an input for Animated.DiffClamp node")
+      }
+      return animatedNode.value
+    }
+
+  override fun prettyPrint(): String =
+      "DiffClampAnimatedNode[$mTag]: InputNodeTag: $inputNodeTag min: $minValue " +
+          "max: $maxValue lastValue: $lastValue super: ${super.prettyPrint()}"
+}