feat(bots/discord): framework changes and new features

- Migrated to a new command framework which looks better and works better
- Fixed commands not being bundled correctly
- Added message (prefix) commands with argument validation
- Added a new CommandErrorType, for invalid arguments
- `/eval` is now a bit safer
- Corrected colors for the coinflip embed
- `/stop` now works even when the bot is not connected to the API

bots/discord/src/commands/admin/eval.ts

@@ -0,0 +1,34 @@
+import { inspect } from 'util'
+import { runInNewContext } from 'vm'
+import { ApplicationCommandOptionType } from 'discord.js'
+
+import { AdminCommand } from '$/classes/Command'
+import { createSuccessEmbed } from '$/utils/discord/embeds'
+
+export default new AdminCommand({
+    name: 'eval',
+    description: 'Make the bot less sentient by evaluating code',
+    options: {
+        code: {
+            description: 'The code to evaluate',
+            type: ApplicationCommandOptionType.String,
+            required: true,
+        },
+        ['show-hidden']: {
+            description: 'Show hidden properties',
+            type: ApplicationCommandOptionType.Boolean,
+            required: false,
+        },
+    },
+    async execute(context, trigger, { code, 'show-hidden': showHidden }) {
+        await trigger.reply({
+            ephemeral: true,
+            embeds: [
+                createSuccessEmbed('Evaluate', `\`\`\`js\n${code}\`\`\``).addFields({
+                    name: 'Result',
+                    value: `\`\`\`js\n${inspect(runInNewContext(code, { client: trigger.client, context, trigger }), { depth: 1, showHidden, getters: true, numericSeparator: true, showProxy: true })}\`\`\``,
+                }),
+            ],
+        })
+    },
+})

bots/discord/src/commands/admin/exception-test.ts

@@ -0,0 +1,21 @@
+import { ApplicationCommandOptionType } from 'discord.js'
+
+import { AdminCommand } from '$/classes/Command'
+import CommandError, { CommandErrorType } from '$/classes/CommandError'
+
+export default new AdminCommand({
+    name: 'exception-test',
+    description: 'Makes the bot intentionally hate you by throwing an exception',
+    options: {
+        type: {
+            description: 'The type of exception to throw',
+            type: ApplicationCommandOptionType.String,
+            required: true,
+            choices: Object.keys(CommandErrorType).map(k => ({ name: k, value: k })),
+        },
+    },
+    async execute(_, __, { type }) {
+        if (type === 'Process') throw new Error('Intentional process exception')
+        throw new CommandError(CommandErrorType[type as keyof typeof CommandErrorType], 'Intentional bot design') // ;)
+    },
+})

bots/discord/src/commands/admin/slash-commands.ts

@@ -0,0 +1,93 @@
+import { ApplicationCommandOptionType, Routes } from 'discord.js'
+
+import { AdminCommand } from '$/classes/Command'
+import CommandError, { CommandErrorType } from '$/classes/CommandError'
+
+import { createSuccessEmbed } from '$/utils/discord/embeds'
+
+const SubcommandOptions = {
+    where: {
+        description: 'Where to register the commands',
+        type: ApplicationCommandOptionType.String,
+        choices: [
+            { name: 'globally', value: 'global' },
+            { name: 'this server', value: 'server' },
+        ],
+        required: true,
+    },
+} as const
+
+export default new AdminCommand({
+    name: 'slash-commands',
+    description: 'Register or delete slash commands',
+    options: {
+        register: {
+            description: 'Register slash commands',
+            type: ApplicationCommandOptionType.Subcommand,
+            options: SubcommandOptions,
+        },
+        delete: {
+            description: 'Delete slash commands',
+            type: ApplicationCommandOptionType.Subcommand,
+            options: SubcommandOptions,
+        },
+    },
+    allowMessageCommand: true,
+    async execute(context, trigger, { delete: deleteOption, register }) {
+        const action = register ? 'register' : 'delete'
+        const { where } = (deleteOption ?? register)!
+
+        if (!trigger.inGuild())
+            throw new CommandError(CommandErrorType.Generic, 'This command can only be used in a server.')
+
+        const { global: globalCommands, guild: guildCommands } = Object.groupBy(
+            Object.values(context.discord.commands),
+            cmd => (cmd.global ? 'global' : 'guild'),
+        )
+
+        const {
+            client,
+            client: { rest },
+        } = trigger
+
+        let response: string | undefined
+
+        switch (action) {
+            case 'register':
+                if (where === 'global') {
+                    response = 'Registered global slash commands'
+
+                    await rest.put(Routes.applicationCommands(client.application.id), {
+                        body: globalCommands?.map(c => c.json),
+                    })
+                } else {
+                    response = 'Registered slash commands on this server'
+
+                    await rest.put(Routes.applicationGuildCommands(client.application.id, trigger.guildId), {
+                        body: guildCommands?.map(c => c.json),
+                    })
+                }
+
+                break
+
+            case 'delete':
+                if (where === 'global') {
+                    response = 'Deleted global slash commands'
+
+                    await rest.put(Routes.applicationCommands(client.application.id), {
+                        body: [],
+                    })
+                } else {
+                    response = 'Deleted slash commands on this server'
+
+                    await rest.put(Routes.applicationGuildCommands(client.application.id, trigger.guildId), {
+                        body: [],
+                    })
+                }
+
+                break
+        }
+
+        await trigger.reply({ embeds: [createSuccessEmbed(response!)] })
+    },
+})

bots/discord/src/commands/admin/stop.ts

@@ -0,0 +1,24 @@
+import { AdminCommand } from '$/classes/Command'
+
+export default new AdminCommand({
+    name: 'stop',
+    description: "You don't want to run this unless the bot starts to go insane, and like, you really need to stop it.",
+    async execute({ api, logger, executor }, trigger) {
+        api.intentionallyDisconnecting = true
+
+        logger.fatal('Stopping bot...')
+        trigger.reply({
+            content: 'Stopping... (I will go offline once done)',
+            ephemeral: true,
+        })
+
+        if (!api.client.disconnected) api.client.disconnect()
+        logger.warn('Disconnected from API')
+
+        trigger.client.destroy()
+        logger.warn('Disconnected from Discord API')
+
+        logger.info(`Bot stopped, requested by ${executor.id}`)
+        process.exit(0)
+    },
+})