noot

ts/src/discord/botevent/command_parser.spec.ts

@@ -63,6 +63,52 @@ const TEST_COMMANDS = [
       },
     ],
   },
+  {
+    name: 'admin',
+    description: 'Admin commands',
+    type: ApplicationCommandTypes.ChatInput,
+    options: [
+      {
+        name: 'user',
+        description: 'User management',
+        type: ApplicationCommandOptionTypes.SubCommandGroup,
+        options: [
+          {
+            name: 'ban',
+            description: 'Ban a user',
+            type: ApplicationCommandOptionTypes.SubCommand,
+            options: [
+              {
+                name: 'user',
+                description: 'User to ban',
+                type: ApplicationCommandOptionTypes.User,
+                required: true,
+              },
+              {
+                name: 'reason',
+                description: 'Ban reason',
+                type: ApplicationCommandOptionTypes.String,
+                required: false,
+              },
+            ],
+          },
+          {
+            name: 'kick',
+            description: 'Kick a user',
+            type: ApplicationCommandOptionTypes.SubCommand,
+            options: [
+              {
+                name: 'user',
+                description: 'User to kick',
+                type: ApplicationCommandOptionTypes.User,
+                required: true,
+              },
+            ],
+          },
+        ],
+      },
+    ],
+  },
 ] as const satisfies CreateApplicationCommand[]
 
 describe('createCommandHandler', () => {
@@ -77,6 +123,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler,
     })
@@ -95,6 +147,7 @@ describe('createCommandHandler', () => {
   it('should handle a simple command with optional arguments', async () => {
     const simpleHandler = vi.fn()
     const notFoundHandler = vi.fn()
+    let a:  ExtractCommands<typeof TEST_COMMANDS>
 
     const handler = createCommandHandler<typeof TEST_COMMANDS>({
       handler: {
@@ -103,6 +156,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler,
     })
@@ -132,6 +191,12 @@ describe('createCommandHandler', () => {
           list: listHandler,
           create: createHandler,
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler,
     })
@@ -167,6 +232,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler,
     })
@@ -191,6 +262,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler,
     })
@@ -221,6 +298,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler,
     })
@@ -232,6 +315,55 @@ describe('createCommandHandler', () => {
     expect(notFoundHandler).toHaveBeenCalledTimes(2)
   })
 
+  it('should handle subcommand groups recursively', async () => {
+    const banHandler = vi.fn()
+    const kickHandler = vi.fn()
+    const notFoundHandler = vi.fn()
+
+    const handler = createCommandHandler<typeof TEST_COMMANDS>({
+      handler: {
+        simple: vi.fn(),
+        complex: {
+          list: vi.fn(),
+          create: vi.fn(),
+        },
+        admin: {
+          user: {
+            ban: banHandler,
+            kick: kickHandler,
+          },
+        },
+      },
+      notFoundHandler,
+    })
+
+    const interactionData: InteractionData = {
+      name: 'admin',
+      options: [
+        {
+          name: 'user',
+          type: ApplicationCommandOptionTypes.SubCommandGroup,
+          options: [
+            {
+              name: 'ban',
+              type: ApplicationCommandOptionTypes.SubCommand,
+              options: [
+                { name: 'user', type: ApplicationCommandOptionTypes.User, value: '123456789' },
+                { name: 'reason', type: ApplicationCommandOptionTypes.String, value: 'Spam' },
+              ],
+            },
+          ],
+        },
+      ],
+    }
+
+    await handler(interactionData)
+
+    expect(banHandler).toHaveBeenCalledWith({ user: '123456789', reason: 'Spam' })
+    expect(kickHandler).not.toHaveBeenCalled()
+    expect(notFoundHandler).not.toHaveBeenCalled()
+  })
+
   it('should handle commands without options', async () => {
     const simpleHandler = vi.fn()
 
@@ -242,6 +374,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler: vi.fn(),
     })
@@ -266,6 +404,12 @@ describe('createCommandHandler', () => {
           list: vi.fn(),
           create: vi.fn(),
         },
+        admin: {
+          user: {
+            ban: vi.fn(),
+            kick: vi.fn(),
+          },
+        },
       },
       notFoundHandler: vi.fn(),
     })
@@ -313,6 +457,22 @@ describe('ExtractCommands type utility', () => {
           expect(enabled).toBeDefined()
         },
       },
+      admin: {
+        user: {
+          ban: async (args) => {
+            // TypeScript should know that args has user as required string and reason as optional string
+            const user: string = args.user
+            const reason: string | undefined = args.reason
+            expect(user).toBeDefined()
+            expect(reason).toBeDefined()
+          },
+          kick: async (args) => {
+            // TypeScript should know that args has user as required string
+            const user: string = args.user
+            expect(user).toBeDefined()
+          },
+        },
+      },
     }
 
     // This is just to satisfy TypeScript - the real test is that the above compiles
@@ -347,6 +507,23 @@ describe('ExtractCommands type utility', () => {
             expect(isEnabled).toBeDefined()
           },
         },
+        admin: {
+          user: {
+            ban: async (args) => {
+              // This would error if args.user wasn't a string
+              const userId = args.user.toLowerCase()
+              // This would error if args.reason wasn't string | undefined
+              const reasonLength = args.reason?.length || 0
+              expect(userId).toBeDefined()
+              expect(reasonLength).toBeDefined()
+            },
+            kick: async (args) => {
+              // This would error if args.user wasn't a string
+              const userId = args.user.toLowerCase()
+              expect(userId).toBeDefined()
+            },
+          },
+        },
       },
     })
 

ts/src/discord/botevent/command_parser.ts

@@ -1,4 +1,4 @@
-import { ApplicationCommandOptionTypes, type CreateApplicationCommand, type DiscordInteractionDataOption } from '@discordeno/types'
+import { ApplicationCommandOptionTypes, DiscordApplicationCommandOption, type CreateApplicationCommand, type DiscordInteractionDataOption } from '@discordeno/types'
 import type { InteractionData } from '..'
 import type { SLASH_COMMANDS } from './slash_commands'
 
@@ -16,10 +16,10 @@ type OptionTypeMap = {
 }
 
 // Helper type to get option by name
-type GetOption<Options, Name> = Options extends readonly any[] ? (Options[number] extends infer O ? (O extends { name: Name } ? O : never) : never) : never
+type GetOption<Options, Name> = Options extends readonly DiscordApplicationCommandOption[] ? (Options[number] extends infer O ? (O extends { name: Name } ? O : never) : never) : never
 
 // Extract the argument types from command options
-export type ExtractArgs<Options extends readonly any[]> = {
+export type ExtractArgs<Options extends readonly DiscordApplicationCommandOption[]> = {
   [K in Options[number]['name']]: GetOption<Options, K> extends { type: infer T; required?: infer R }
     ? T extends keyof OptionTypeMap
       ? R extends true
@@ -30,55 +30,73 @@ export type ExtractArgs<Options extends readonly any[]> = {
 }
 
 // Handler function type that accepts typed arguments
-type HandlerFunction<Args = {}> = (args: Args) => Promise<void> | void
+type HandlerFunction<Args = Record<string, never>> = (args: Args) => Promise<void> | void
 
-// Get subcommand by name
-type GetSubcommand<Options, Name> = Options extends readonly any[]
+
+
+// Get subcommand or subcommand group by name
+type GetSubcommandOrGroup<Options, Name> = Options extends readonly DiscordApplicationCommandOption[]
   ? Options[number] extends infer O
-    ? O extends { name: Name; type: ApplicationCommandOptionTypes.SubCommand }
+    ? O extends { name: Name; type: ApplicationCommandOptionTypes.SubCommand | ApplicationCommandOptionTypes.SubCommandGroup }
       ? O
       : never
     : never
   : never
 
-// Check if all options are subcommands
-type HasOnlySubcommands<Options extends readonly any[]> = Options[number] extends { type: ApplicationCommandOptionTypes.SubCommand } ? true : false
+// Check if all options are subcommands or subcommand groups
+type HasOnlySubcommands<Options extends readonly DiscordApplicationCommandOption[]> = Options[number] extends { type: ApplicationCommandOptionTypes.SubCommand | ApplicationCommandOptionTypes.SubCommandGroup } ? true : false
 
-// Extract subcommand names from options
-type SubcommandNames<Options extends readonly any[]> = Options[number] extends { name: infer N; type: ApplicationCommandOptionTypes.SubCommand }
+// Extract subcommand or subcommand group names from options
+type SubcommandNames<Options extends readonly DiscordApplicationCommandOption[]> = Options[number] extends { name: infer N; type: ApplicationCommandOptionTypes.SubCommand | ApplicationCommandOptionTypes.SubCommandGroup }
   ? N extends string
     ? N
     : never
   : never
 
-// Type to extract subcommand handlers
-export type SubcommandHandlers<Options extends readonly any[]> = {
-  [K in SubcommandNames<Options>]: GetSubcommand<Options, K> extends { options?: infer SubOpts }
-    ? SubOpts extends readonly any[]
+// Type to extract subcommand handlers (recursive for groups)
+export type SubcommandHandlers<Options extends readonly DiscordApplicationCommandOption[]> = {
+  [K in SubcommandNames<Options>]: GetSubcommandOrGroup<Options, K> extends { type: infer T; options?: infer SubOpts }
+    ? T extends ApplicationCommandOptionTypes.SubCommandGroup
+      ? SubOpts extends readonly DiscordApplicationCommandOption[]
+        ? SubcommandHandlers<SubOpts>
+        : never
+      : T extends ApplicationCommandOptionTypes.SubCommand
+      ? SubOpts extends readonly DiscordApplicationCommandOption[]
         ? HandlerFunction<ExtractArgs<SubOpts>>
-      : HandlerFunction<{}>
-    : HandlerFunction<{}>
+        : HandlerFunction<Record<string, never>>
+      : never
+    : never
 }
 
 // Get command by name from array
 type GetCommand<Commands extends readonly any[], Name> = Commands[number] extends infer C ? (C extends { name: Name } ? C : never) : never
 
 // Main type to extract command handlers from slash commands
-export type ExtractCommands<T extends readonly any[]> = {
+export type ExtractCommands<T extends readonly CreateApplicationCommand[]> = {
   [Name in T[number]['name']]: GetCommand<T, Name> extends { options?: infer Options }
-    ? Options extends readonly any[]
+    ? Options extends readonly DiscordApplicationCommandOption[]
       ? HasOnlySubcommands<Options> extends true
         ? SubcommandHandlers<Options>
         : HandlerFunction<ExtractArgs<Options>>
-      : HandlerFunction<{}>
-    : HandlerFunction<{}>
+      : HandlerFunction<Record<string, never>>
+    : HandlerFunction<Record<string, never>>
+}
+
+// Type representing the possible output of ExtractCommands
+export type CommandHandler = HandlerFunction<any> | CommandHandlerMap
+export type CommandHandlerMap = {
+  [key: string]: CommandHandler
 }
 
 // The actual command handler type based on SLASH_COMMANDS
 export type CommandHandlers = ExtractCommands<typeof SLASH_COMMANDS>
 
-// Helper function to parse option values from interaction data
-function parseOptions(options?: DiscordInteractionDataOption[]): Record<string, any> {
+// Helper function to parse option values from interaction data. there is sort of a hack here
+// so the actual type we need to parse comes from the parsing of DiscordApplicationCommandOption
+// but this is parsing from the DiscordInteractionDataOption type, which is just the generic data response.
+// technically, at runtime, with the SLASH_COMMANDS object, it's possible to validate this struct, and produce a better type than any
+// but that is... a lot of work, so we are just going to do this for now and leave validation for another day.
+function parseOptions<T extends DiscordInteractionDataOption[]>(options?: T): any {
   if (!options) return {}
 
   const args: Record<string, any> = {}
@@ -87,43 +105,27 @@ function parseOptions(options?: DiscordInteractionDataOption[]): Record<string,
     if (option.type === ApplicationCommandOptionTypes.SubCommand || option.type === ApplicationCommandOptionTypes.SubCommandGroup) {
       continue
     }
-
     args[option.name] = option.value
   }
 
   return args
 }
 
-// Helper function to create command handlers with type safety
-export function createCommandHandler<T extends readonly CreateApplicationCommand[]>({
-  handler,
-  notFoundHandler,
-}: {
-  handler: ExtractCommands<T>
-  notFoundHandler: HandlerFunction<{}>
-}) {
-  return async (data: InteractionData): Promise<void> => {
-    if (!data || !data.name) {
-      await notFoundHandler({})
+// Unified recursive handler for commands, subcommands, and subcommand groups
+async function handleCommands(
+  handler: CommandHandler,
+  options: DiscordInteractionDataOption[] | undefined,
+  notFoundHandler: HandlerFunction<{path?: string}>
+): Promise<void> {
+  // If handler is a function, execute it with parsed options
+  if (typeof handler === 'function') {
+    const args = parseOptions(options)
+    await handler(args)
     return
   }
 
-    const commandName = data.name as keyof typeof handler
-    const commandHandler = handler[commandName]
-
-    if (!commandHandler) {
-      await notFoundHandler({})
-      return
-    }
-
-    // Check if it's a direct command or has subcommands
-    if (typeof commandHandler === 'function') {
-      // Parse arguments from top-level options
-      const args = parseOptions(data.options)
-      await commandHandler(args)
-    } else {
-      // Handle subcommands
-      const subcommand = data.options?.find(
+  // Handler is a map of subcommands/groups
+  const subcommand = options?.find(
     (opt) => opt.type === ApplicationCommandOptionTypes.SubCommand || opt.type === ApplicationCommandOptionTypes.SubCommandGroup
   )
 
@@ -132,15 +134,37 @@ export function createCommandHandler<T extends readonly CreateApplicationCommand
     return
   }
 
-      const subHandler = commandHandler[subcommand.name as keyof typeof commandHandler]
-      if (!subHandler || typeof subHandler !== 'function') {
+  const subHandler = handler[subcommand.name]
+  if (!subHandler) {
     await notFoundHandler({})
     return
   }
 
-      // Parse arguments from subcommand options
-      const args = parseOptions(subcommand.options)
-      await (subHandler as HandlerFunction<any>)(args)
-    }
+  // Recursively handle the subcommand/group
+  await handleCommands(subHandler, subcommand.options, notFoundHandler)
+}
+
+// Helper function to create command handlers with type safety
+export function createCommandHandler<T extends readonly CreateApplicationCommand[]>({
+  handler,
+  notFoundHandler,
+}: {
+  commands: T,
+  handler: ExtractCommands<T>
+  notFoundHandler: HandlerFunction<{path?: string}>
+}) {
+  return async (data: InteractionData): Promise<void> => {
+    if (!data || !data.name) {
+      await notFoundHandler({})
+      return
+    }
+    const commandName = data.name as keyof typeof handler
+    const commandHandler = handler[commandName]
+    if (!commandHandler) {
+      await notFoundHandler({})
+      return
+    }
+    // Use unified handler for all command types
+    await handleCommands(commandHandler, data.options, notFoundHandler)
   }
 }

ts/src/workflows/discord.ts

@@ -2,8 +2,8 @@ import { InteractionTypes } from '@discordeno/types'
 import { proxyActivities, startChild, workflowInfo } from '@temporalio/workflow'
 import type * as activities from '#/activities'
 import type { InteractionCreatePayload } from '#/discord'
-import { createCommandHandler } from '#/discord/botevent/command_parser'
-import type { SLASH_COMMANDS } from '#/discord/botevent/slash_commands'
+import { CommandHandlers, createCommandHandler } from '#/discord/botevent/command_parser'
+import { SLASH_COMMANDS } from '#/discord/botevent/slash_commands'
 import { handleCommandGuildInfo, handleCommandGuildLeaderboard, handleCommandGuildOnline } from './guild_messages'
 import { handleCommandPlayerLookup } from './player_messages'
 
@@ -29,7 +29,8 @@ const workflowHandleApplicationCommand = async (payload: InteractionCreatePayloa
     await notFoundHandler(`Invalid command data`)
     return
   }
-  const commandHandler = createCommandHandler<typeof SLASH_COMMANDS>({
+  const commandHandler = createCommandHandler({
+    commands: SLASH_COMMANDS,
     notFoundHandler: async () => {
       await notFoundHandler(`command not found`)
     },