Rename API and generalize router API

assets/js/router.js

@@ -1,25 +1,12 @@
 import { router, navigate } from "https://unpkg.com/million@1.8.9-0/dist/router.mjs"
 
-export const init = (loader) => {
+export const attachSPARouting = (draw) => {
   // SPA navigation for access later
   window.navigate = navigate
   // We only mutate document.title and content within .singlePage element
   router(".singlePage")
   // We need on initial load, then subsequent redirs
-  window.addEventListener("million:navigate", () => callback(loader))
-  window.addEventListener("DOMContentLoaded", () => callback(loader))
-}
-
-export const callback = (loader) => {
   // requestAnimationFrame() delays graph draw until SPA routing is finished
-  const draw = () => {
-    const container = document.getElementById("graph-container")
-    // retry if the graph is not ready
-    if (!container) return requestAnimationFrame(draw)
-    // clear the graph in case there is anything within it
-    container.textContent = ""
-
-    loader()
-  }
-  requestAnimationFrame(draw)
+  window.addEventListener("million:navigate", () => requestAnimationFrame(draw))
+  window.addEventListener("DOMContentLoaded", () => requestAnimationFrame(draw))
 }