feat: [alpha] slash command

Author: mouse484

src/core/events/SlashCommandHandler.ts

@@ -0,0 +1,13 @@
+import { event } from 'ecstar';
+import { Events } from 'discord.js';
+import { slashCommandContext } from 'ecstar/context/slashCommand';
+
+export default event(() => ({
+  name: Events.InteractionCreate,
+  run({ client }, [interaction]) {
+    if (!interaction.isChatInputCommand()) return;
+    const command = client.commands.get(interaction.commandName);
+    const ctx = slashCommandContext(client, interaction);
+    if (command?.run && ctx) command.run(ctx);
+  },
+}));

src/lib/context/index.ts

@@ -6,7 +6,7 @@ import { commandContext } from 'ecstar/context/command';
 import { eventContext } from 'ecstar/context/event';
 import { argumentContext } from 'ecstar/context/argument';
 
-type ContextType = keyof Structures | 'unknown';
+type ContextType = keyof Structures | string | 'unknown';
 
 export interface ContextBase {
   name: string;

src/lib/context/slashCommand.ts

@@ -0,0 +1,23 @@
+import { Interaction, Message, Snowflake, TextChannel } from 'discord.js';
+import { Client } from 'ecstar';
+import { ContextBase } from 'ecstar/context';
+
+export interface SlashCommandContext extends ContextBase {
+  type: 'slashCommand';
+  send(content: string): void;
+}
+
+export const slashCommandContext = (
+  client: Client,
+  interaction: Interaction
+): SlashCommandContext | undefined => {
+  if (!interaction.isChatInputCommand()) return;
+  return {
+    name: interaction.commandName,
+    type: 'slashCommand',
+    client,
+    send(content) {
+      interaction.reply(content);
+    },
+  };
+};

src/lib/structures/command.ts

@@ -1,12 +1,13 @@
 import { CommandContext } from 'ecstar/context/command';
 import { PermissionResolvable } from 'discord.js';
+import { SlashCommandContext } from 'ecstar/context/slashCommand';
 
 export type commandOptions = {
   name: string;
   aliases?: string[];
   guildOnly?: boolean;
   permissions?: { bot?: PermissionResolvable[]; user?: PermissionResolvable[] };
-  run?(context: CommandContext): void;
+  run?(context: CommandContext | SlashCommandContext): void;
   /** @deprecated Replaced by run */
   render?(context: CommandContext): void;
 };