architecture besides db setup, say+roll

commands/index.ts

@@ -0,0 +1,78 @@
+import { EmbedBuilder } from "discord.js";
+import type { ChatInputCommandInteraction } from "discord.js";
+
+import { BotError } from "./error";
+
+import say from "./say";
+import roll from "./roll";
+
+
+export interface CommandData {
+  name: string;
+  description: string;
+  ephemeral: boolean;
+  admin_only: boolean;
+  run: (interaction: ChatInputCommandInteraction) => Promise<any>;
+  //
+};
+
+const commands: CommandData[] = [say, roll];
+
+//todo: look from config. also, have a config
+function is_admin(interaction: ChatInputCommandInteraction): boolean {
+  //
+  //placeholder
+  return true;
+}
+
+export default async function run(interaction: ChatInputCommandInteraction) {
+  const name = interaction.commandName;
+
+  //help command is "auto-generated"
+  if (name === "help") {
+    //max of 25 fields per embed, so if too many commands, this section needs a rewrite
+    let embeds = [];
+    let help_embed = new EmbedBuilder();
+    help_embed.setTitle("Help");
+    for (const c of commands.filter((c) => !c.admin_only)) {
+      help_embed.addFields([{
+        name: `/${c.name}`,
+        value: c.description,
+      }]);
+    }
+    embeds.push(help_embed);
+    if (is_admin(interaction)) {
+      let admin_help_embed = new EmbedBuilder();
+      admin_help_embed.setTitle("Help (admin only)");
+      for (const c of commands.filter((c) => c.admin_only)) {
+        admin_help_embed.addFields([{
+          name: `/${c.name}`,
+          value: c.description,
+        }]);
+      }
+      embeds.push(admin_help_embed);
+    }
+    return await interaction.reply({ embeds, ephemeral: true });
+  }
+
+  const found = commands.find((c) => c.name === name);
+  try {
+    //admin stuff should be ideally handled by register.ts, but this is a fallback
+    if (found.admin_only && !is_admin(interaction)) throw new BotError("Admin permission needed to run that command");
+    await found.run(interaction);
+  } catch (e) {
+    if (e instanceof BotError) {
+      //send error message to that channel
+      if (interaction.deferred) {
+        return await interaction.editReply(String(e));
+      } else {
+        return await interaction.reply({ content: String(e), ephemeral: found.ephemeral });
+      }
+    } else {
+      //an actual error
+      //console.log(e);
+      throw e; //crash it
+    }
+  }
+}
+