books/models/regionalModels/in/Address.ts

import { FormulaMap, ListsMap } from 'frappe/model/types';
import { Address as BaseAddress } from 'models/baseModels/Address/Address';
import { stateCodeMap } from 'regional/in';
import { titleCase } from 'utils';

export class Address extends BaseAddress {
  formulas: FormulaMap = {
    addressDisplay: async () => {
      return [
        this.addressLine1,
        this.addressLine2,
        this.city,
        this.state,
        this.country,
        this.postalCode,
      ]
        .filter(Boolean)
        .join(', ');
    },

    pos: async () => {
      const stateList = Object.keys(stateCodeMap).map(titleCase).sort();
      const state = this.state as string;
      if (stateList.includes(state)) {
        return state;
      }
      return '';
    },
  };

  static lists: ListsMap = {
    ...BaseAddress.lists,
    pos: () => {
      return Object.keys(stateCodeMap).map(titleCase).sort();
    },
  };
}