import {
  CREATE as MSSQL_CREATE,
  GET_NEXT_SORT as MSSQL_GET_NEXT_SORT,
} from '../../providers/mssql/queries/entityaddress.js';
import {
  CREATE as SQLITE_CREATE,
  GET_NEXT_SORT as SQLITE_GET_NEXT_SORT,
} from '../../providers/sqlite3/queries/entityaddress.js';
import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';
import resolveEntityAccess from '../entity/resolveEntityAccess.js';
import makeRunner from '../runner.js';

function shape(row) {
  return {
    id: row.id,
    entityId: row.entityId,
    firstName: row.firstName ?? null,
    name: row.name ?? null,
    street: row.street ?? null,
    streetNumber: row.streetNumber ?? null,
    zip: row.zip ?? null,
    city: row.city ?? null,
    county: row.county ?? null,
    addressType: row.addressType,
    sort: row.sort,
  };
}

function optionalString(value) {
  if (value == null || value === '') return null;
  const s = String(value).trim();
  return s || null;
}

export default function create(provider) {
  const access = resolveSelectedCompanyAccess(provider);
  const entityAccess = resolveEntityAccess(provider);
  const isSqlite = provider?.dialect === 'sqlite3';
  const getSortSql = isSqlite ? SQLITE_GET_NEXT_SORT : MSSQL_GET_NEXT_SORT;
  const createSql = isSqlite ? SQLITE_CREATE : MSSQL_CREATE;

  /**
   * Creates a new address for an entity.
   *
   * @param {number} googleAuthId - The id of the Google auth user.
   * @param {number} entityId - The id of the entity.
   * @param {object} input - The address input.
   * @param {string} input.addressType - The address type (e.g. `'billing'`).
   * @param {string} [input.firstName] - The first name.
   * @param {string} [input.name] - The name.
   * @param {string} [input.street] - The street.
   * @param {string} [input.streetNumber] - The street number.
   * @param {string} [input.zip] - The zip code.
   * @param {string} [input.city] - The city.
   * @param {string} [input.county] - The county.
   * @param {number} [input.sort] - Optional sort order.
   * @param {object} [tx] - Optional transaction to run within.
   * @returns {Promise<{id: number, entityId: number, firstName: string|null, name: string|null, street: string|null, streetNumber: string|null, zip: string|null, city: string|null, county: string|null, addressType: string, sort: number}>} The created address.
   * @throws {Error} If the address type is missing.
   *
   * @example
   * const address = await store.entityaddress.create(42, 5, { addressType: 'billing', street: 'Main St', city: 'Berlin' });
   * // => { id, entityId, firstName, name, street, streetNumber, zip, city, county, addressType, sort }
   */
  return async (googleAuthId, entityId, input = {}, tx) => {
    const addressType = input.addressType?.trim?.()
      ? input.addressType.trim()
      : null;
    if (!addressType) {
      throw new Error('Address type required');
    }

    const runner = makeRunner(provider, tx);
    const { companyId } = await access(googleAuthId, tx);
    await entityAccess(companyId, entityId, tx);

    let sort = input.sort;
    if (sort === undefined || sort === null) {
      const next = await runner.query(getSortSql, { entityId });
      sort = next.rows[0].sort;
    } else if (!Number.isFinite(sort)) {
      throw new Error('Invalid sort');
    }

    const result = await runner.query(createSql, {
      entityId,
      firstName: optionalString(input.firstName),
      name: optionalString(input.name),
      street: optionalString(input.street),
      streetNumber: optionalString(input.streetNumber),
      zip: optionalString(input.zip),
      city: optionalString(input.city),
      county: optionalString(input.county),
      addressType,
      sort,
    });

    const row = result.rows[0] ?? {
      id: result.insertId,
      entityId,
      firstName: optionalString(input.firstName),
      name: optionalString(input.name),
      street: optionalString(input.street),
      streetNumber: optionalString(input.streetNumber),
      zip: optionalString(input.zip),
      city: optionalString(input.city),
      county: optionalString(input.county),
      addressType,
      sort,
    };

    return shape(row);
  };
}