Simplified scroll to bottom logic

lightrag_webui/src/lib/utils.ts

@@ -19,6 +19,39 @@ export function errorMessage(error: any) {
   return error instanceof Error ? error.message : `${error}`
 }
 
+/**
+ * Creates a throttled function that limits how often the original function can be called
+ * @param fn The function to throttle
+ * @param delay The delay in milliseconds
+ * @returns A throttled version of the function
+ */
+export function throttle<T extends (...args: any[]) => any>(fn: T, delay: number): (...args: Parameters<T>) => void {
+  let lastCall = 0
+  let timeoutId: ReturnType<typeof setTimeout> | null = null
+
+  return function(this: any, ...args: Parameters<T>) {
+    const now = Date.now()
+    const remaining = delay - (now - lastCall)
+
+    if (remaining <= 0) {
+      // If enough time has passed, execute the function immediately
+      if (timeoutId) {
+        clearTimeout(timeoutId)
+        timeoutId = null
+      }
+      lastCall = now
+      fn.apply(this, args)
+    } else if (!timeoutId) {
+      // If not enough time has passed, set a timeout to execute after the remaining time
+      timeoutId = setTimeout(() => {
+        lastCall = Date.now()
+        timeoutId = null
+        fn.apply(this, args)
+      }, remaining)
+    }
+  }
+}
+
 type WithSelectors<S> = S extends { getState: () => infer T }
   ? S & { use: { [K in keyof T]: () => T[K] } }
   : never