feat(builder): add max min length in string option (#8214)

packages/builders/src/interactions/slashCommands/options/string.ts

@@ -1,11 +1,43 @@
+import { s } from '@sapphire/shapeshift';
 import { APIApplicationCommandStringOption, ApplicationCommandOptionType } from 'discord-api-types/v10';
 import { mix } from 'ts-mixer';
 import { ApplicationCommandOptionBase } from '../mixins/ApplicationCommandOptionBase';
 import { ApplicationCommandOptionWithChoicesAndAutocompleteMixin } from '../mixins/ApplicationCommandOptionWithChoicesAndAutocompleteMixin';
 
+const minLengthValidator = s.number.greaterThanOrEqual(0).lessThanOrEqual(6000);
+const maxLengthValidator = s.number.greaterThanOrEqual(1).lessThanOrEqual(6000);
+
 @mix(ApplicationCommandOptionWithChoicesAndAutocompleteMixin)
 export class SlashCommandStringOption extends ApplicationCommandOptionBase {
 	public readonly type = ApplicationCommandOptionType.String as const;
+	public readonly max_length?: number;
+	public readonly min_length?: number;
+
+	/**
+	 * Sets the maximum length of this string option.
+	 *
+	 * @param max - The maximum length this option can be
+	 */
+	public setMaxLength(max: number): this {
+		maxLengthValidator.parse(max);
+
+		Reflect.set(this, 'max_length', max);
+
+		return this;
+	}
+
+	/**
+	 * Sets the minimum length of this string option.
+	 *
+	 * @param min - The minimum length this option can be
+	 */
+	public setMinLength(min: number): this {
+		minLengthValidator.parse(min);
+
+		Reflect.set(this, 'min_length', min);
+
+		return this;
+	}
 
 	public toJSON(): APIApplicationCommandStringOption {
 		this.runRequiredValidations();