/*!
 * Copyright (c) Microsoft. All rights reserved.
 * Licensed under the MIT license. See LICENSE file in the project.
 */
import type { IDropdownOption } from '@fluentui/react'

export function getEnumDropdownOptions<E = Record<string, string>>(
	enumeration: E,
	labels?: Record<string, string>,
): IDropdownOption[] {
	const options = Object.entries(enumeration as Record<string, string>).map(
		(entry) => {
			const [name, key] = entry
			const text = labels?.[key] || formatEnumName(name)
			return {
				key,
				text,
			}
		},
	)
	return options
}

/**
 * Formats a TitleCase enum name into a friendly-readable string
 * E.g. "TitleCase" => "Title case"
 * @param name
 * @returns
 */
function formatEnumName(name: string): string {
	const parts = name.replace(/([A-Z])/g, ' $1').trim().split(/\s/)
	const first = parts[0]
	const rest = parts.slice(1).map((p) => p.toLocaleLowerCase())
	return [first, ...rest].join(' ')
}