feat: add duotone command

Author: Snazzah

src/commands/gen/filter/duotone.ts

@@ -0,0 +1,83 @@
+import { ApplicationCommandOption, CommandContext, CommandOptionType, SlashCreator } from 'slash-create';
+import { GenerationCommand } from '../../../imgsrv/abstracts';
+import { BlurplePayload } from '../../../imgsrv/payload';
+import { find } from '../../../media';
+
+const filterOptions: ApplicationCommandOption[] = [
+  {
+    name: 'media',
+    type: CommandOptionType.STRING,
+    description: 'Can be a URL or an emoji. Use the "avatar" option to get an avatar.'
+  },
+  {
+    name: 'avatar',
+    type: CommandOptionType.USER,
+    description: 'Use the avatar of the given user, defaults to the last posted image.'
+  },
+  {
+    name: 'gif',
+    type: CommandOptionType.BOOLEAN,
+    description: 'Whether to export a GIF in this filter.'
+  }
+];
+
+export default class Duotone extends GenerationCommand {
+  constructor(creator: SlashCreator) {
+    super(creator, {
+      name: 'duotone',
+      description: 'Use a duotone filter on an image.',
+      options: [
+        {
+          name: 'blurple',
+          type: CommandOptionType.SUB_COMMAND,
+          description: 'Blurpify things!',
+          options: [
+            ...filterOptions,
+            {
+              name: 'new_color',
+              type: CommandOptionType.BOOLEAN,
+              description: 'Whether to use the new blurple color in the filter.'
+            }
+          ]
+        },
+        {
+          name: 'fireengine',
+          type: CommandOptionType.SUB_COMMAND,
+          description: 'Mixing the fire.',
+          options: filterOptions
+        },
+        {
+          name: 'honeyglow',
+          type: CommandOptionType.SUB_COMMAND,
+          description: 'Sweet honey.',
+          options: filterOptions
+        },
+        {
+          name: 'mtndew',
+          type: CommandOptionType.SUB_COMMAND,
+          description: 'Do the dew.',
+          options: filterOptions
+        }
+      ],
+      throttling: {
+        usages: 1,
+        duration: 10
+      }
+    });
+  }
+
+  async run(ctx: CommandContext) {
+    const endpoint = ctx.subcommands[0];
+
+    const user = ctx.users.first() || ctx.user;
+    const media = ctx.options.media as string;
+
+    const result = await find(user, media, ctx, ctx.users.size === 1);
+    const payload: BlurplePayload = { image: result.url };
+
+    // Define special options
+    if (ctx.options.blurple?.new_color) payload.new_color = true;
+
+    return this.generate(ctx, payload, endpoint);
+  }
+}