import { msg } from "@lingui/core/macro";
import { useLingui } from "@lingui/react/macro";
import * as React from "react";

import { ROLE_ENTRIES } from "./roleDefinitions.js";

const MSG_ROLE_UNKNOWN = msg`Unknown`;

export type RolesSelectRow = {
	value: number;
	label: string;
	description: string;
};

/**
 * Shared resolved role strings + descriptor rows for selects (after `i18n` is active).
 */
export function useRolesConfig(): {
	roleLabels: Record<string, string>;
	getRoleLabel: (level: number) => string;
	roles: readonly RolesSelectRow[];
} {
	const { t } = useLingui();

	const roles = React.useMemo(
		() =>
			ROLE_ENTRIES.map(({ value, label, description }) => ({
				value,
				label: t(label),
				description: t(description),
			})),
		[t],
	);

	const roleLabels = React.useMemo(
		() => Object.fromEntries(ROLE_ENTRIES.map((r) => [String(r.value), t(r.label)])),
		[t],
	);

	const getRoleLabel = React.useCallback(
		(level: number) => roleLabels[String(level)] ?? t(MSG_ROLE_UNKNOWN),
		[roleLabels, t],
	);

	return { roleLabels, getRoleLabel, roles };
}