/// <reference path="../pb_data/types.d.ts" />
//
// M19 — Add customerId to appointments collection.

migrate(
  function (db) {
    var col = null;
    try { col = db.findCollectionByNameOrId('appointments'); } catch (e) {}
    if (!col) {
      console.warn('[M19] appointments collection not found — skipping');
      return;
    }

    for (var i = 0; i < col.fields.length; i++) {
      if (col.fields[i].name === 'customerId') {
        console.log('[M19] customerId already exists — skipping');
        return;
      }
    }

    col.fields.push(new TextField({ name: 'customerId', required: false }));
    db.save(col);
    console.log('[M19] added customerId to appointments');
  },
  function (db) {
    var col = null;
    try { col = db.findCollectionByNameOrId('appointments'); } catch (e) {}
    if (!col) return;
    for (var i = 0; i < col.fields.length; i++) {
      if (col.fields[i].name === 'customerId') {
        col.fields.splice(i, 1);
        db.save(col);
        console.log('[M19] removed customerId from appointments');
        return;
      }
    }
  }
);