Initial Commit

app/components/ui/chart/utils.ts

@@ -0,0 +1,44 @@
+import type { ChartConfig } from '.'
+import { isClient } from '@vueuse/core'
+import { useId } from 'reka-ui'
+import { h, render } from 'vue'
+
+// Simple cache using a Map to store serialized object keys
+const cache = new Map<string, string>()
+
+// Convert object to a consistent string key
+function serializeKey(key: Record<string, any>): string {
+  return JSON.stringify(key, Object.keys(key).sort())
+}
+
+interface Constructor<P = any> {
+  __isFragment?: never
+  __isTeleport?: never
+  __isSuspense?: never
+  new (...args: any[]): {
+    $props: P
+  }
+}
+
+export function componentToString<P>(config: ChartConfig, component: Constructor<P>, props?: P) {
+  if (!isClient)
+    return
+
+  // This function will be called once during mount lifecycle
+  const id = useId()
+
+  // https://unovis.dev/docs/auxiliary/Crosshair#component-props
+  return (_data: any, x: number | Date) => {
+    const data = 'data' in _data ? _data.data : _data
+    const serializedKey = `${id}-${serializeKey(data)}`
+    const cachedContent = cache.get(serializedKey)
+    if (cachedContent)
+      return cachedContent
+
+    const vnode = h<unknown>(component, { ...props, payload: data, config, x })
+    const div = document.createElement('div')
+    render(vnode, div)
+    cache.set(serializedKey, div.innerHTML)
+    return div.innerHTML
+  }
+}