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better networked model loading

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Yeicor
2024-02-17 18:14:27 +01:00
parent a0b8cfe2a8
commit f50efd3701
5 changed files with 89 additions and 85 deletions
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25
src/misc/network.ts
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@@ -1,6 +1,7 @@
export class NetworkUpdateEvent extends Event {
name: string;
url: string;
constructor(name: string, url: string) {
super("update");
this.name = name;
@@ -27,15 +28,11 @@ export class NetworkManager extends EventTarget {
// Get the last part of the URL as the "name" of the model
let name = url.split("/").pop();
name = name?.split(".")[0] || `unknown-${Math.random()}`;
let prevHash = this.knownObjectHashes[name];
// Use a head request to get the hash of the file
let response = await fetch(url, { method: "HEAD" });
let response = await fetch(url, {method: "HEAD"});
let hash = response.headers.get("etag");
// Only trigger an update if the hash has changed
if (hash !== prevHash) {
this.knownObjectHashes[name] = hash;
this.dispatchEvent(new NetworkUpdateEvent(name, url));
}
this.foundModel(name, hash, url);
}
}
@@ -44,13 +41,7 @@ export class NetworkManager extends EventTarget {
ws.onmessage = (event) => {
let data = JSON.parse(event.data);
console.debug("WebSocket message", data);
let name = data.name;
let prevHash = this.knownObjectHashes[name];
let hash = data.hash;
if (hash !== prevHash) {
this.knownObjectHashes[name] = hash;
this.dispatchEvent(new NetworkUpdateEvent(name, data.url));
}
this.foundModel(data.name, data.hash, data.url);
};
ws.onerror = (event) => {
console.error("WebSocket error", event);
@@ -60,4 +51,12 @@ export class NetworkManager extends EventTarget {
setTimeout(() => this.monitorWebSocket(url), 500);
}
}
private foundModel(name: string, hash: string, url: string) {
let prevHash = this.knownObjectHashes[name];
if (hash !== prevHash) {
this.knownObjectHashes[name] = hash;
this.dispatchEvent(new NetworkUpdateEvent(name, url));
}
}
}