/**
 * Who may press the buttons that spend the site's Recomaze credits: the
 * roles holding the "AI with credits" capability (administrators and
 * editors unless the role manager says otherwise). Shared by the plugin
 * page and the editors, so both say the same thing to everyone else.
 */
export const AI_CAPABILITY = 'recomaze_seo_ai';

/** Why an AI button is greyed out. */
export const NO_AI_ACCESS =
  "AI actions spend the site's Recomaze credits, and your role may not start them. Ask an administrator for AI access.";

/**
 * Whether the SEO capabilities of a user let them run AI actions.
 *
 * @param {string[] | undefined} caps - The user's SEO capabilities; unknown means a page from before the capability.
 * @returns {boolean}
 */
export const canUseAi = (caps: string[] | undefined): boolean =>
  caps === undefined || caps.includes(AI_CAPABILITY);