import { FrameId } from '../types';

// LITE (free) vs PRO. Two apks come out of this one tree: the PRO apk
// (src/provariant.ts, rewritten by tools/set-variant.mjs) is born owned, while
// the LITE apk is the free build and buys the tier through Google Play. The
// tier itself is runtime state, so it lives in src/utils/proUnlock.ts and every
// caller takes it from there (useProUnlock) or by prop.

// The gate is on the FILE, not on the preview: a LITE user composes with any
// look and compares it before/after — only the render/export of a PRO look is
// held back, and every LITE export carries the mark below.
//
// What LITE owns outright: the eight film sims, the bundled recipes, its own
// recipes up to LITE_RECIPE_LIMIT, its own watermark text (in one face), the
// plain frames, one favorite and every parameter except the HDF effect.
// What needs PRO: the three printed frames, the GPS stamp, the HDF effect,
// the platform's other fonts, the next recipe past the limit, and the second
// favorite.

// Frames on the LITE side: the plain export only. The three printed looks are
// PRO (the artwork/card geometry is the paid half of the FRAME tab).
export const PRO_FRAMES: FrameId[] = ['classic-white', 'polaroid', 'wallframe'];

// LITE may store its own recipes, up to this many: creating and editing them is
// free, deleting one is PRO — so a LITE list only ever grows to this size.
export const LITE_RECIPE_LIMIT = 3;

// FAVORITED is a LITE feature, but only one deep: the first star is free, the
// second needs PRO. Un-starring is always free, so the list can always come
// back under the limit.
export const LITE_FAVORITE_LIMIT = 1;

// Burned into every LITE export, bottom-right of the photo/frame area. Fractions
// of the stamp canvas, same space the custom mark uses. The user's own mark is
// free on top of it.
export const LITE_MARK = {
  text: 'RECIPESCAM',
  x: 0.55,
  y: 0.94,
  color: '#ffffff',
  size: 0.8,
};

export interface Look {
  frame: FrameId;
  gpsWm: boolean;
  hdf: number;
}

// The first PRO feature a look is using, or null when it is LITE-clean. One
// string, so the caller can name it back to the user in the alert.
export function proLookInUse(look: Look): string | null {
  if (PRO_FRAMES.includes(look.frame)) return 'A PRO frame';
  if (look.gpsWm) return 'The GPS watermark';
  // A LITE build can no longer reach the HDF row (paramDefs marks it PRO and
  // the panel greys the chip out), but a session or recipe stored before the
  // gate existed still carries a value: it is caught here, at the render.
  if (look.hdf > 0) return 'The HDF effect';
  return null;
}