import { IdentifierSqlTokenType, sql } from 'slonik';

type Table = { table: string; fields: Record<string, string> };
type FieldIdentifiers<Key extends string | number | symbol> = {
  [key in Key]: IdentifierSqlTokenType;
};

export const convertToIdentifiers = <T extends Table>(
  { table, fields }: T,
  withPrefix = false
) => ({
  table: sql.identifier([table]),
  fields: Object.entries<string>(fields).reduce(
    (previous, [key, value]) => ({
      ...previous,
      [key]: sql.identifier(withPrefix ? [table, value] : [value]),
    }),
    // eslint-disable-next-line @typescript-eslint/prefer-reduce-type-parameter
    {} as FieldIdentifiers<keyof T['fields']>
  ),
});