feat(utils): add select option helpers

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/utils/selectFieldOptions.ts

@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: 2026 LibreCode coop and LibreCode contributors
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+export interface EditableSelectOption {
+	id: string
+	value: string
+}
+
+export const createEditableSelectOptions = (
+	values: string[],
+	createId: () => string,
+): EditableSelectOption[] => values.map((value) => ({
+	id: createId(),
+	value,
+}))
+
+export const normalizeEditableSelectOptionValue = (value: string): string => value.trim().toLowerCase()
+
+export const parseEditableSelectOptionValues = (value: string): string[] => value
+	.split(/\r?\n/g)
+	.map((entry) => entry.trim())
+	.filter((entry) => entry.length > 0)
+
+export const extractEditableSelectOptionValues = (options: EditableSelectOption[]): string[] => options.map(({ value }) => value)
+
+export const moveEditableSelectOption = (
+	options: EditableSelectOption[],
+	index: number,
+	direction: -1 | 1,
+): EditableSelectOption[] => {
+	const targetIndex = index + direction
+	if (index < 0 || index >= options.length || targetIndex < 0 || targetIndex >= options.length) {
+		return options
+	}
+
+	const reordered = [...options]
+	const [selected] = reordered.splice(index, 1)
+	reordered.splice(targetIndex, 0, selected)
+	return reordered
+}