commit c79fb7de78c6d561d841098d82b64e1865a547bf
Author: Michael Zhang <mail@mzhang.io>
Date:   Thu Jun 27 19:03:02 2024 -0500

    start

diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+node_modules
\ No newline at end of file
diff --git a/biome.json b/biome.json
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+++ b/biome.json
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+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "organizeImports": {
+    "enabled": true
+  },
+  "formatter": {
+    "enabled": true,
+    "indentWidth": 2,
+    "indentStyle": "space"
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true
+    }
+  }
+}
diff --git a/bun.lockb b/bun.lockb
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diff --git a/index.html b/index.html
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+++ b/index.html
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+<script type="module" src="./src/index.tsx"></script>
+<div id="root"></div>
\ No newline at end of file
diff --git a/package.json b/package.json
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+++ b/package.json
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+{
+  "dependencies": {
+    "d3": "^7.9.0",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1"
+  },
+  "devDependencies": {
+    "@biomejs/biome": "^1.8.3",
+    "@types/d3": "^7.4.3",
+    "@types/react": "^18.3.3",
+    "@types/react-dom": "^18.3.0",
+    "@vitejs/plugin-react-swc": "^3.7.0",
+    "sass": "^1.77.6",
+    "vite": "^5.3.2"
+  }
+}
diff --git a/src/App.module.scss b/src/App.module.scss
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+++ b/src/App.module.scss
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+.container {
+    width: 100%;
+    height: 100%;
+    padding: 0;
+    margin: 0;
+}
+
+circle {
+    fill: cadetblue;
+}
+
+line {
+    stroke: #ccc;
+}
+
+text {
+    text-anchor: middle;
+    font-family: "Helvetica Neue", Helvetica, sans-serif;
+    fill: #666;
+    font-size: 16px;
+}
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diff --git a/src/App.tsx b/src/App.tsx
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+++ b/src/App.tsx
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+import * as d3 from "d3";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import styles from "./App.module.scss";
+import { createPortal } from "react-dom";
+
+interface NodeInfo extends d3.SimulationNodeDatum {
+  name: string;
+}
+
+const nodes: NodeInfo[] = [
+  { name: "A" },
+  { name: "B" },
+  { name: "C" },
+  { name: "D" },
+  { name: "E" },
+  { name: "F" },
+  { name: "G" },
+  { name: "H" },
+];
+
+const links = [
+  { source: 0, target: 1 },
+  { source: 0, target: 2 },
+  { source: 0, target: 3 },
+  { source: 1, target: 6 },
+  { source: 3, target: 4 },
+  { source: 3, target: 7 },
+  { source: 4, target: 5 },
+  { source: 4, target: 7 },
+];
+
+export default function App() {
+  const svgRef = useRef();
+  const simulationRef = useRef();
+
+  // Resize listener
+  const [rect, setRect] = useState<DOMRectReadOnly | null>(null);
+  useEffect(() => {
+    new ResizeObserver((entries) => {
+      for (const entry of entries) {
+        setRect(entry.contentRect);
+      }
+    }).observe(document.body);
+  }, []);
+
+  const [simulationNodes, setSimulationNodes] = useState(() => nodes);
+  const ticked = useCallback((simulation: d3.Simulation<NodeInfo, any>) => {
+    const nodes = simulation.nodes();
+    // setSimulationNodes(nodes);
+    // d3.select("svg .links")
+    //   .selectAll("line")
+    //   .data(links)
+    //   .join("line")
+    //   .attr("x1", (d) => d.source.x)
+    //   .attr("x2", (d) => d.target.x)
+    //   .attr("y1", (d) => d.source.y)
+    //   .attr("y2", (d) => d.target.y);
+
+    d3.select("svg .nodes")
+      .selectAll("rect")
+      .data(nodes)
+      .join("rect")
+      //   .append("foreignObject")
+      .text((d) => d.name)
+      .attr("x", (d) => d.x)
+      .attr("y", (d) => d.y)
+      .attr("dy", (d) => 5);
+  }, []);
+
+  useEffect(() => {
+    if (!rect) return;
+
+    const simulation = d3
+      .forceSimulation<NodeInfo>(nodes)
+      .force("charge", d3.forceManyBody())
+      .force("link", d3.forceLink(links))
+      .force("center", d3.forceCenter(rect.width / 2, rect.height / 2));
+
+    simulation.on("tick", () => ticked(simulation));
+
+    simulationRef.current = simulation;
+  }, [ticked, rect]);
+
+  return (
+    <div className={styles.container}>
+      {rect && (
+        <svg ref={svgRef} width={rect.width} height={rect.height}>
+          <title>Hello</title>
+          <g className="links" />
+          <g className="nodes">
+            {simulationNodes.map((node, idx) => {
+              console.log("node", node);
+              return (
+                <text
+                  key={idx}
+                  x={(node.x ?? 0).toString()}
+                  y={(node.y ?? 0).toString()}
+                >
+                  {node.name}
+                </text>
+              );
+            })}
+          </g>
+        </svg>
+      )}
+    </div>
+  );
+}
+
+function ForeignObjectWrapper({ id }) {
+  const el = useMemo(() => {
+    return document.getElementById(id);
+  }, [id]);
+  return createPortal(<Counter />, el);
+}
+
+function Counter() {
+  const [counter, setCounter] = useState(0);
+
+  //increase counter
+  const increase = () => {
+    setCounter((count) => count + 1);
+  };
+
+  //decrease counter
+  const decrease = () => {
+    setCounter((count) => count - 1);
+  };
+
+  //reset counter
+  const reset = () => {
+    setCounter(0);
+  };
+
+  return (
+    <div className="btn__container">
+      <button className="control__btn" onClick={increase}>
+        +
+      </button>
+      <button className="control__btn" onClick={decrease}>
+        -
+      </button>
+      <button className="reset" onClick={reset}>
+        Reset
+      </button>
+    </div>
+  );
+}
diff --git a/src/global.scss b/src/global.scss
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+++ b/src/global.scss
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+html,
+body,
+#root {
+    width: 100%;
+    height: 100%;
+    padding: 0;
+    margin: 0;
+}
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diff --git a/src/index.tsx b/src/index.tsx
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+++ b/src/index.tsx
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+import App from "./App";
+import { createRoot } from "react-dom/client";
+import "./global.scss";
+
+createRoot(document.getElementById("root")).render(<App />);
diff --git a/tsconfig.json b/tsconfig.json
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+++ b/tsconfig.json
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+{
+	"compilerOptions": {
+		"jsx": "react-jsx"
+	}
+}
diff --git a/vite.config.ts b/vite.config.ts
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+++ b/vite.config.ts
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+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react-swc";
+
+defineConfig({
+  plugins: [react()],
+});