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import { IS_BROWSER } from "$fresh/runtime.ts";import { createElement as h } from "preact";import { useEffect, useRef } from "preact/compat";import * as Plot from "../../deps/@observablehq/plot.ts";
export * from "../../deps/@observablehq/plot.ts";
export function usePlot<T = Plot.Data>(options: Plot.PlotOptions) {  if (!IS_BROWSER) return;
  const containerRef = useRef();
  useEffect(() => {    const plot = Plot.plot(options);    // .replaceWith() to replace the server-side rendered plot with    // the client-side (hydrated) plot entirely (avoids flickering)    containerRef.current.replaceWith(plot);  }, []);
  return containerRef;}
/** * Isomorphic Plot component for rendering charts on the server and * hydrating them on the client for client-side interactivity. * * @example import * as Plot from "netzo/components/blocks/plot/plot.tsx"; * export default () => <Plot.Figure options={options} />; * * @param {Plot.PlotOptions} options - the plot options * @returns {JSX.Element} the plot figure */export function Figure({ options }: { options: Plot.PlotOptions }) {  // // server-side render: uses a virtual Document implementation to generate HTML  // if (!IS_BROWSER) return <PlotSSR options={options} />;
  // // client-side render: uses a real DOM container and the usePlot() hook for mounting  // const containerRef = usePlot(options);  // return <figure ref={containerRef} />;
  // client-side render: uses a real DOM container and the usePlot() hook for mounting  const containerRef = usePlot(options);  return (    <figure ref={containerRef}>      <PlotSSR options={options} />    </figure>  );}
function PlotSSR({ options }: { options: Plot.PlotOptions }) {  return Plot.plot({ ...options, document: new Document() }).toHyperScript();}
// (virtual) Document implementation for SSR:
class Document {  constructor() {    this.documentElement = new Element(this, "html");  }  createElementNS(namespace, tagName) {    return new Element(this, tagName);  }  createElement(tagName) {    return new Element(this, tagName);  }  createTextNode(value) {    return new TextNode(this, value);  }  querySelector() {    return null;  }  querySelectorAll() {    return [];  }}
class Style {  static empty = new Style();  setProperty() {}  removeProperty() {}}
class Element {  constructor(ownerDocument, tagName) {    this.ownerDocument = ownerDocument;    this.tagName = tagName;    this.attributes = {};    this.children = [];    this.parentNode = null;  }  setAttribute(name, value) {    this.attributes[name] = String(value);  }  setAttributeNS(namespace, name, value) {    this.setAttribute(name, value);  }  getAttribute(name) {    return this.attributes[name];  }  getAttributeNS(name) {    return this.getAttribute(name);  }  hasAttribute(name) {    return name in this.attributes;  }  hasAttributeNS(name) {    return this.hasAttribute(name);  }  removeAttribute(name) {    delete this.attributes[name];  }  removeAttributeNS(namespace, name) {    this.removeAttribute(name);  }  addEventListener() {    // ignored; interaction needs real DOM  }  removeEventListener() {    // ignored; interaction needs real DOM  }  dispatchEvent() {    // ignored; interaction needs real DOM  }  append(...children) {    for (const child of children) {      this.appendChild(        child?.ownerDocument ? child : this.ownerDocument.createTextNode(child),      );    }  }  appendChild(child) {    this.children.push(child);    child.parentNode = this;    return child;  }  insertBefore(child, after) {    if (after == null) {      this.children.push(child);    } else {      const i = this.children.indexOf(after);      if (i < 0) throw new Error("insertBefore reference node not found");      this.children.splice(i, 0, child);    }    child.parentNode = this;    return child;  }  querySelector() {    return null;  }  querySelectorAll() {    return [];  }  set textContent(value) {    this.children = [this.ownerDocument.createTextNode(value)];  }  set style(value) {    this.attributes.style = value;  }  get style() {    return Style.empty;  }  toHyperScript() {    return h(      this.tagName,      this.attributes,      this.children.map((c) => c.toHyperScript()),    );  }}
class TextNode {  constructor(ownerDocument, nodeValue) {    this.ownerDocument = ownerDocument;    this.nodeValue = String(nodeValue);  }  toHyperScript() {    return this.nodeValue;  }}