import { GET_SUPPLIER_BY_ID, SUPPLIER_GROUP_NAME } from '../../sql/entity.js';
import { GET_COMPANY_DEFAULT_TAX } from '../../sql/articlesupplier.js';
import request from '../request.js';

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

export function shapeArticleSupplier(row) {
  return {
    id: row.id,
    articleId: row.articleId,
    entityId: row.entityId,
    supplierName: row.supplierName ?? null,
    sku: row.sku ?? null,
    pu: row.pu,
    stock: row.stock ?? null,
    sort: row.sort,
    priceId: row.priceId ?? null,
    price:
      row.priceId != null && row.priceNet != null
        ? {
            net: row.priceNet,
            taxId: row.priceTaxId,
            ...(row.priceTaxRate != null ? { taxRate: row.priceTaxRate } : {}),
          }
        : null,
  };
}

export async function assertSupplier(pool, tx, companyId, supplierId) {
  if (supplierId == null || !Number.isFinite(supplierId)) {
    throw new Error('Supplier not found');
  }

  const result = await request(pool, tx)
    .input('id', supplierId)
    .input('companyId', companyId)
    .input('groupName', SUPPLIER_GROUP_NAME)
    .query(GET_SUPPLIER_BY_ID);

  if (!result.recordset[0]) {
    throw new Error('Supplier not found');
  }
  return supplierId;
}

export async function resolveCompanyDefaultTax(pool, tx, companyId) {
  const result = await request(pool, tx)
    .input('companyId', companyId)
    .query(GET_COMPANY_DEFAULT_TAX);
  return result.recordset[0]?.taxrate ?? null;
}