feat(discord-bot): add fdp command

apps/discord-bot/src/commands/fdp.ts

@@ -0,0 +1,48 @@
+import { AttachmentBuilder } from "discord.js";
+import sharp from "sharp";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+import { noMention } from "~/discord";
+import type { Command } from "./index";
+
+const POOP_PATH = join(dirname(fileURLToPath(import.meta.url)), "../../assets/poop.png");
+
+export const fdpCommand: Command = {
+    help: "Essaie et tu verras",
+    handler: async (message) => {
+        const avatarUrl = message.author.displayAvatarURL({ size: 512, extension: "png" });
+
+        const avatarBuffer = Buffer.from(await (await fetch(avatarUrl)).arrayBuffer());
+
+        const { width: avatarWidth, height: avatarHeight } = await sharp(avatarBuffer).metadata();
+        if (!avatarWidth || !avatarHeight) return;
+
+        const poopWidth = Math.floor(avatarWidth / 2);
+        const poopBuffer = await sharp(POOP_PATH).resize({ width: poopWidth }).toBuffer();
+        const { height: poopHeight } = await sharp(poopBuffer).metadata();
+        if (!poopHeight) return;
+
+        const overlap = Math.floor(poopHeight / 4);
+        const poopLeft = Math.floor((avatarWidth - poopWidth) / 2);
+
+        const result = await sharp({
+            create: {
+                width: avatarWidth,
+                height: avatarHeight + poopHeight - overlap,
+                channels: 4,
+                background: { r: 0, g: 0, b: 0, alpha: 0 },
+            },
+        })
+            .composite([
+                { input: avatarBuffer, top: poopHeight - overlap, left: 0 },
+                { input: poopBuffer, top: 0, left: poopLeft },
+            ])
+            .webp()
+            .toBuffer();
+
+        await message.reply({
+            ...noMention,
+            files: [new AttachmentBuilder(result, { name: "fdp.webp" })],
+        });
+    },
+};

apps/discord-bot/src/commands/index.ts

@@ -1,4 +1,5 @@
 import type { Message, OmitPartialGroupDMChannel } from "discord.js";
+import { fdpCommand } from "./fdp";
 import { pingCommand } from "./ping";
 import { trackCommand } from "./tracking";
 import { iconeCommand } from "./icone";
@@ -18,6 +19,7 @@ export type Command = {
 };
 
 export const commands: Record<string, Command> = {
+    fdp:      fdpCommand,
     ping:     pingCommand,
     track:    trackCommand,
     icone:    iconeCommand,