/**
 * Font families per theme. See PLAN.md §4.7.
 * UI chrome is locked to System Sans across all themes so typography changes
 * only affect the writing editor surface.
 */

export interface FontSet {
  /** UI chrome font (locked to System Sans). */
  ui: string;
  /** Body / prose font. */
  body: string;
  /** Monospace for code / terminal theme. */
  mono: string;
}

export const SYSTEM_UI_FONT =
  "-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif";

export const FONTS: Record<string, FontSet> = {
  ink: {
    ui: SYSTEM_UI_FONT,
    body: "Georgia, 'Times New Roman', serif",
    mono: "'SFMono-Regular', ui-monospace, 'Cascadia Code', Consolas, monospace",
  },
  parchment: {
    ui: SYSTEM_UI_FONT,
    body: "Georgia, 'Times New Roman', serif",
    mono: "'SFMono-Regular', ui-monospace, Consolas, monospace",
  },
  nocturne: {
    ui: SYSTEM_UI_FONT,
    body: "Georgia, 'Times New Roman', serif",
    mono: "'SFMono-Regular', ui-monospace, 'Cascadia Code', Consolas, monospace",
  },
  terminal: {
    ui: SYSTEM_UI_FONT,
    body: "'SFMono-Regular', ui-monospace, Consolas, monospace",
    mono: "'SFMono-Regular', ui-monospace, Consolas, monospace",
  },
};