silly lil thing

src/handlers/dynamicIcon.handler.ts

@@ -1,13 +1,62 @@
 import { Handler } from '..';
-import { createCanvas, loadImage } from 'canvas';
+import { PNGStream, createCanvas, loadImage } from 'canvas';
+
+async function stream2buffer(stream: PNGStream): Promise<Buffer> {
+    return new Promise<Buffer>((resolve, reject) => {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        const _buf = Array<any>();
+
+        stream.on('data', (chunk) => _buf.push(chunk));
+        stream.on('end', () => resolve(Buffer.concat(_buf)));
+        stream.on('error', (err) => reject(`error converting stream - ${err}`));
+    });
+}
 
 export const dynamicIconHandler: Handler = (client) => {
-    client.on('messageCreate', (message) => {
-        if (message.content == 'icons') {
+    const startTime = 1712518661_000;
+    const endTime = 1712595600_000;
+    const totalTime = endTime - startTime;
+    let timeout: NodeJS.Timeout | undefined = undefined;
+    if (Date.now() > endTime) return;
+    client.on('messageCreate', async (message) => {
+        if (
+            message.content != 'start numismatics icon thingy please' &&
+            message.member?.permissions.has('Administrator')
+        ) {
+            message.reply('nuh uh');
+            return;
+        }
+        if (timeout) {
+            message.reply('it already started silly');
+            return;
         }
+        const updateIcon = async () => {
+            const currentTime = Date.now() - startTime;
+            const currentProgress = currentTime / totalTime;
+            console.log(currentProgress);
+            message.guild?.setIcon(
+                await stream2buffer(await generateIcon(currentProgress / 2))
+            );
+        };
+        updateIcon();
+        timeout = setInterval(updateIcon, 1800_000);
     });
 };
 
-function generateIcon(coverage: number) {
+async function generateIcon(progress: number) {
     const canvas = createCanvas(256, 256);
+    const ctx = canvas.getContext('2d');
+    ctx.drawImage(
+        await loadImage(__dirname + '/../assets/railways_icon.png'),
+        0,
+        0
+    );
+    const x = progress * canvas.width * 2 - canvas.width;
+    const y = -(Math.sin(progress * Math.PI) * 256 - 256);
+    ctx.drawImage(
+        await loadImage(__dirname + '/../assets/numismatics_icon.png'),
+        x,
+        y
+    );
+    return canvas.createPNGStream({});
 }

src/index.ts

@@ -15,6 +15,7 @@ import { buttonHandler } from './handlers/button.handler';
 import textCommandHandler from './handlers/textCommand.handler';
 import { modalHandler } from './handlers/modal.handler';
 import { ChannelType } from 'discord-api-types/v10';
+import { dynamicIconHandler } from './handlers/dynamicIcon.handler';
 // import { spamHandler } from './handlers/spam.handler';
 
 export const client = new Client({
@@ -118,6 +119,7 @@ const handlers: Handler[] = [
     logHandler,
     buttonHandler,
     modalHandler,
+    dynamicIconHandler,
     // spamHandler,
 ];