/// <reference path="../pb_data/types.d.ts" />
// M22 — Add logo file field to settings collection.
//
// Currently the shop logo is stored as a base64 data-URL inside the `data`
// JSON blob. This migration adds a proper `logo` file field so logos are
// stored as PB file records instead, eliminating bloated localStorage and
// PB round-trips.
//
// The frontend continues to cache a base64 version in localStorage for
// backward compatibility with PDF generation (jsPDF addImage expects
// data URLs or Image objects). The PB file field is the canonical store.
//
// Migration is a no-op if the field already exists (idempotent).

migrate(
  (app) => {
    const col = app.findCollectionByNameOrId('settings');
    if (!col) {
      console.log('[M22] settings collection not found — skipping');
      return;
    }
    if (col.fields.find(f => f.name === 'logo')) {
      console.log('[M22] logo field already exists — skipping');
      return;
    }
    col.fields.add(new FileField({
      name: 'logo',
      required: false,
      maxSize: 5242880,
      allowedMimeTypes: ['image/png', 'image/jpeg', 'image/webp', 'image/svg+xml'],
    }));
    app.save(col);
    console.log('[M22] added logo file field to settings collection');
  },
  (app) => {
    const col = app.findCollectionByNameOrId('settings');
    if (!col) return;
    const field = col.fields.find(f => f.name === 'logo');
    if (field) {
      col.fields.remove(field);
      app.save(col);
      console.log('[M22] removed logo file field from settings collection');
    }
  }
);