/**
 * domain-palette.ts — the fixed, MuseHub-curated viewer palette (musehub#117 DOM_09).
 *
 * A domain manifest selects one of these viewer types by name; it never ships
 * its own rendering code. Keeping the palette in one module means adding a
 * new entry here is the only place that needs to change — user-profile.ts's
 * domain pills and domain-detail.ts's live preview both read from here
 * instead of maintaining their own copies of this lookup (musehub#117 DOM_11).
 */

export type ViewerType = 'symbol_graph' | 'piano_roll' | 'generic';

export interface PaletteEntry {
  color: string;
  icon: string;
  label: string;
}

export const DOMAIN_VIEWER_PALETTE: Record<string, PaletteEntry> = {
  symbol_graph: { color: '#58a6ff', icon: '⬡', label: 'Code' },
  piano_roll:   { color: '#bc8cff', icon: '♪', label: 'MIDI' },
  generic:      { color: '#8b949e', icon: '◈', label: 'Generic' },
};

function entryFor(viewerType: string): PaletteEntry {
  return DOMAIN_VIEWER_PALETTE[viewerType] ?? DOMAIN_VIEWER_PALETTE.generic;
}

export function domainColor(viewerType: string): string {
  return entryFor(viewerType).color;
}

export function domainIcon(viewerType: string): string {
  return entryFor(viewerType).icon;
}

export function domainLabel(viewerType: string, name?: string): string {
  if (name && name !== 'Unknown') return name;
  return entryFor(viewerType).label;
}