Fix chat send button behavior

Rosetta/DesignSystem/Components/LottieView.swift

@@ -45,6 +45,15 @@ struct LottieView: UIViewRepresentable, Equatable {
         lhs.isPlaying == rhs.isPlaying
     }
 
+    func makeCoordinator() -> Coordinator {
+        Coordinator()
+    }
+
+    final class Coordinator {
+        var didPlayOnce = false
+        var lastAnimationName = ""
+    }
+
     func makeUIView(context: Context) -> LottieAnimationView {
         let animationView: LottieAnimationView
         if let cached = LottieAnimationCache.shared.animation(named: animationName) {
@@ -57,21 +66,45 @@ struct LottieView: UIViewRepresentable, Equatable {
         animationView.animationSpeed = animationSpeed
         animationView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
         animationView.setContentCompressionResistancePriority(.defaultLow, for: .vertical)
-        if isPlaying {
-            animationView.play()
-        }
+        context.coordinator.lastAnimationName = animationName
+        playIfNeeded(animationView, coordinator: context.coordinator)
         return animationView
     }
 
     func updateUIView(_ uiView: LottieAnimationView, context: Context) {
-        if isPlaying {
-            if !uiView.isAnimationPlaying {
-                uiView.play()
+        if context.coordinator.lastAnimationName != animationName {
+            if let cached = LottieAnimationCache.shared.animation(named: animationName) {
+                uiView.animation = cached
+            } else {
+                uiView.animation = LottieAnimation.named(animationName)
             }
-        } else {
+            context.coordinator.lastAnimationName = animationName
+            context.coordinator.didPlayOnce = false
+        }
+
+        uiView.loopMode = loopMode
+        uiView.animationSpeed = animationSpeed
+
+        if !isPlaying {
+            context.coordinator.didPlayOnce = false
             if uiView.isAnimationPlaying {
                 uiView.stop()
             }
+            return
+        }
+
+        playIfNeeded(uiView, coordinator: context.coordinator)
+    }
+
+    private func playIfNeeded(_ view: LottieAnimationView, coordinator: Coordinator) {
+        if loopMode == .playOnce {
+            guard !coordinator.didPlayOnce else { return }
+            coordinator.didPlayOnce = true
+            view.play()
+            return
+        }
+        if !view.isAnimationPlaying {
+            view.play()
         }
     }
 }