/**
 * Legacy single-product stub.
 *
 * v0.6 — the host no longer owns a runtime product catalog. The
 * canonical catalog lives in template-manager (productsStore) and is
 * seeded once from src/constants/seedProducts.js.
 *
 * What's left in this file
 * ────────────────────────
 * The legacy single-product editor flow at `/` (apparel-designer's
 * App.jsx) calls `getActiveProduct()` and reads a small set of
 * shape-only fields off the result: `canvasSize`, `printZone`,
 * `productSvg`, `background`. We keep a minimal stub here so that
 * flow continues booting without re-architecting it for the v0.6
 * data shape.
 *
 * Migration intent
 * ────────────────
 * The legacy `/` flow is slated for retirement; the customer-facing
 * surface is `/customize?template=…` which reads the template's
 * embedded variant. When the legacy flow is removed, this file goes
 * with it.
 */

// Bare shirt shape with just enough fields for the legacy
// getActiveProduct() consumers in App.jsx + the editor's
// legacy single-product code paths.
const LEGACY_SHIRT_STUB = {
  id: 'shirt',
  label: 'T-Shirt',
  canvasSize: 300,
  printZone: { x: 90, y: 130, width: 220, height: 220 },
  productSvg: { component: 'shirt', width: 400, height: 470 },
  background: { mode: 'color', defaultColorId: 'white' },
  // No variants — v0.6 catalog lives in template-manager.
  variants: [],
};

/**
 * Return the active product for the legacy single-product editor.
 * Always returns the shirt stub in v0.6.
 */
export function getActiveProduct() {
  return LEGACY_SHIRT_STUB;
}

// ── Deprecated exports ────────────────────────────────────────
//
// These names are referenced in places that haven't been swept yet.
// They resolve to the legacy stub or to undefined so any straggling
// importer doesn't crash on module load. Will be removed in a
// follow-up cleanup pass.

/** @deprecated Use seedProducts.DEFAULT_PRODUCT_ID. */
export const DEFAULT_PRODUCT_TYPE_ID = 'shirt';

/** @deprecated Use seedProducts.DEFAULT_SIZE_ID. */
export const DEFAULT_VARIANT_ID = 'shirt-default';

/** @deprecated Use seedProducts. */
export const ACTIVE_PRODUCT_ID = 'shirt';

/** @deprecated Use seedProducts; map productId/sizeId via the products API. */
export const PRODUCT_TYPES = { shirt: LEGACY_SHIRT_STUB };

/** @deprecated Use the resolved variant from a template GET response. */
export function getVariant(_productTypeId, _variantId) {
  return null;
}