feat(higherorders.ts): a new function that acts as a command options builder

src/handler/utilities/higherOrders.ts

@@ -1,4 +1,5 @@
-import type { Message } from 'discord.js';
+import type { Application, ApplicationCommandOptionData, Message } from 'discord.js';
+import type { OptionData } from './options';
 
 type MsgFnArgs = [msgOrInter: Message, prefix?: string];
 type MsgFn = (...args: MsgFnArgs) => boolean;
@@ -8,10 +9,18 @@ type MsgFn = (...args: MsgFnArgs) => boolean;
  * @param {MsgFn} fn any function that has argument `MsgFnArgs` returning boolean 
  * @returns {(message: Message, prefix: string) => boolean}
  */
-export function AllTrue(...fns : MsgFn[]) :
- (message: Message, prefix: string) => boolean {
+export function AllTrue(...fns: MsgFn[]):
+    (message: Message, prefix: string) => boolean {
     return (message: Message, prefix: string) => {
         return fns.every(g => g(message, prefix));
     };
 }
 
+/**
+ * A HoF that acts as a ligtweight slash command options builder, enabling user with intellisense
+ * @param { T extends keyof OptionData } type type of option
+ * @returns { (optionData: Omit<OptionData[T], 'type'>) => ApplicationCommandOptionData | Omit<OptionData[T], 'type'> } creates options
+ */
+export function Option<T extends keyof OptionData>(type: T) {
+    return (optionData: Omit<OptionData[T], 'type'>) => { return { type, ...optionData }; };
+}

src/handler/utilities/options.ts

@@ -0,0 +1,26 @@
+import type {
+    ApplicationCommandAutocompleteOption,
+    ApplicationCommandChannelOptionData,
+    ApplicationCommandChoicesOption,
+    ApplicationCommandNonOptionsData,
+    ApplicationCommandNumericOptionData,
+    ApplicationCommandSubCommandData,
+    ApplicationCommandSubGroupData
+} from 'discord.js';
+
+type BaseOption = { name : string, description : string, required : false };
+
+export interface OptionData {
+    SUB_COMMAND: ApplicationCommandSubCommandData
+    SUB_COMMAND_GROUP: ApplicationCommandSubGroupData
+    NONE: ApplicationCommandNonOptionsData
+    CHANNEL: ApplicationCommandChannelOptionData
+    CHOICE: ApplicationCommandChoicesOption
+    AUTO: ApplicationCommandAutocompleteOption
+    NUMBER: ApplicationCommandNumericOptionData
+    INTEGER: ApplicationCommandNumericOptionData
+    USER : { type: "USER" } & BaseOption
+    MENTIONABLE: { type : "MENTIONABLE" } & BaseOption
+    ROLE : { type: "ROLE" } & BaseOption
+    BOOLEAN : { type: "BOOLEAN" } & BaseOption
+}