hide unavailable commands and add subcommands (fix #47)

src/commands/misc/help.ts

@@ -1,5 +1,11 @@
 import { SlashCommandBuilder } from "@discordjs/builders";
-import { ChatInputCommandInteraction, Client, Colors, EmbedBuilder } from "discord.js";
+import {
+  ApplicationCommandOptionType,
+  ChatInputCommandInteraction,
+  Client,
+  Colors,
+  EmbedBuilder,
+} from "discord.js";
 import "../../modules/string";
 import { getLocale, getLocalizations } from "../../utils/locales";
 import { getFilename } from "../../utils/misc";
@@ -47,16 +53,31 @@ export default {
       }[] = [];
 
       // Load all the command per categories
-      // TODO: Check if the command exist in the context (guild)
-      // TODO: List subcommands too
-      // https://git.mylloon.fr/ConfrerieDuKassoulait/Botanique/issues/47
       client.commands.categories.forEach((commands_name, category) => {
-        const commands = commands_name.reduce((data, command_name) => {
-          return data + `\`/${command_name}\`, `;
-        }, "");
+        // Check if the command exist in the context (guild)
+        commands_name = commands_name.filter((command) => {
+          const scope = client.commands.list.get(command)?.scope();
+          return scope!.length === 0 || scope?.find((v) => v === interaction.guildId) !== undefined;
+        });
+
+        // Add subcommands
+        const all_commands: string[] = [];
+        commands_name.forEach((command) => {
+          const json = client.commands.list.get(command)?.data.toJSON();
+          all_commands.push(command);
+
+          json?.options
+            ?.filter((option) => option.type === ApplicationCommandOptionType.Subcommand)
+            .forEach((subcommand) => all_commands.push(command + " " + subcommand.name));
+        });
+
+        const commands = all_commands.reduce(
+          (data, command_name) => data + `\`/${command_name}\`, `,
+          "",
+        );
 
         fields.push({
-          name: category.capitalize() + ` (${commands_name.length})`,
+          name: category.capitalize() + ` (${all_commands.length})`,
           value: commands.slice(0, -2),
         });
       });

src/modules/client.ts

@@ -75,6 +75,8 @@ declare module "discord.js" {
         string,
         /** Command itself */
         {
+          /** Guilds where the command is active */
+          scope: () => string[];
           /** Data about the command */
           data: SlashCommandBuilder;
           /** How the command interact */