/**
 *@NApiVersion 2.x
 *@NScriptType UserEventScript
 */

import { EntryPoints } from 'N/types';
import * as search from 'N/search';
import * as record from 'N/record';

export function afterSubmit(context: EntryPoints.UserEvent.afterSubmitContext) {
  getChildCustomers(context.newRecord.id).forEach(id => {
    updateChildCustomer(id, context.newRecord);
  });

  return true;
}

function getChildCustomers(parentId) {
  const childCustomers = [];

  search
    .create({
      type: search.Type.CUSTOMER,
      filters: [
        ['parentcustomer.internalid', search.Operator.ANYOF, parentId],
        'AND',
        ['custentity_mos_inherit_custom_pricing', <http://search.Operator.IS|search.Operator.IS>, 'T'],
      ],
    })
    .run()
    .each(result => {
      childCustomers.push(result.id);
      return true;
    });

  return childCustomers;
}

function updateChildCustomer(childRecordId, parentRecord: record.Record) {
  const childRecord = record.load({ type: record.Type.CUSTOMER, id: childRecordId, isDynamic: true });

  const sublistId = 'itempricing';

  let lineCount = childRecord.getLineCount({ sublistId });
  for (let line = 0; line < lineCount; line++) {
    childRecord.removeLine({sublistId, line: 0});  
  }
  
  lineCount = parentRecord.getLineCount({ sublistId });
  for (let line = 0; line < lineCount; line++) {
    const item = parentRecord.getSublistValue({ sublistId, fieldId: 'item', line });
    const level = parentRecord.getSublistValue({ sublistId, fieldId: 'level', line });
    const currency = parentRecord.getSublistValue({ sublistId, fieldId: 'currency', line });
    const price = parentRecord.getSublistValue({ sublistId, fieldId: 'price', line });

    childRecord.selectNewLine({ sublistId });
    childRecord.setCurrentSublistValue({ sublistId, fieldId: 'item', value: item });
    childRecord.setCurrentSublistValue({ sublistId, fieldId: 'level', value: level });
    childRecord.setCurrentSublistValue({ sublistId, fieldId: 'currency', value: currency });
    childRecord.setCurrentSublistValue({ sublistId, fieldId: 'price', value: price });
    childRecord.commitLine({ sublistId });
  }

  childRecord.save();
}