feat: multiselect prompt disabled option

Author: orochaa

packages/prompts/src/index.ts

@@ -267,7 +267,10 @@ export interface SelectOptions<Value> {
 }
 
 export const select = <Value>(opts: SelectOptions<Value>) => {
-	const opt = (option: Option<Value>, state: 'inactive' | 'active' | 'selected' | 'cancelled') => {
+	const opt = (
+		option: Option<Value>,
+		state: 'inactive' | 'active' | 'selected' | 'cancelled'
+	) => {
 		const label = option.label ?? String(option.value);
 		switch (state) {
 			case 'selected':
@@ -414,14 +417,28 @@ export const multiselect = <Value>(opts: MultiSelectOptions<Value>) => {
 		required: opts.required ?? true,
 		cursorAt: opts.cursorAt,
 		validate(selected: Value[]) {
-			if (this.required && selected.length === 0)
+			if (this.required && selected.length === 0) {
 				return `Please select at least one option.\n${color.reset(
 					color.dim(
 						`Press ${color.gray(color.bgWhite(color.inverse(' space ')))} to select, ${color.gray(
 							color.bgWhite(color.inverse(' enter '))
 						)} to submit`
 					)
 				)}`;
+			}
+			const disabledOptions = opts.options
+				.map((option) => {
+					if (selected.includes(option.value) && option.disabled) {
+						return option.label ?? option.value;
+					}
+					return undefined;
+				})
+				.filter(Boolean);
+			if (disabledOptions.length) {
+				return `${disabledOptions.join(', ')} ${
+					disabledOptions.length > 1 ? 'options are' : 'option is'
+				} disabled.`;
+			}
 		},
 		render() {
 			const title = `${color.gray(S_BAR)}\n${symbol(this.state)}  ${opts.message}\n`;