import { GET_ARTICLE_BY_SKU_FULL } from '../../sql/article.js';

function parseJsonArray(raw) {
  if (!raw) return [];
  const arr = typeof raw === 'string' ? JSON.parse(raw) : raw;
  return Array.isArray(arr) ? arr : [];
}

export default function getBySku(pool) {
  return async (googleAuthId, sku) => {
    const t0 = performance.now();
    const result = await pool
      .request()
      .input('sku', sku)
      .input('googleAuthId', googleAuthId)
      .query(GET_ARTICLE_BY_SKU_FULL);
    console.log(`[getBySku] single query ${(performance.now() - t0).toFixed(1)}ms`);

    const row = result.recordset[0];
    if (!row) {
      throw new Error('Article not found');
    }
    if (!row.articleId || !row.categoryId) {
      throw new Error('Article not found');
    }
    if (!row.companyId || !row.rootCategoryId || !row.languageId) {
      throw new Error('Parent not found');
    }
    if (!row.companyuserId) {
      throw new Error('Not authorized');
    }

    const a = typeof row.articleJson === 'string' ? JSON.parse(row.articleJson) : row.articleJson;

    return {
      article: {
        id: a.id,
        sku: a.sku,
        name: a.name,
        slug: a.slug,
        unitamount: a.unitamount,
        weight: a.weight,
        unit: {
          si: a.unitSi,
          basesi: a.unitBasesi,
          basesifactor: a.unitBasesifactor,
          symbol: a.unitSymbol ?? null,
          name: a.unitName ?? null,
        },
        brand: a.brandName
          ? {
              name: a.brandName,
              thumbW: a.brandThumbW,
              thumbH: a.brandThumbH,
              thumbHash: a.brandThumbHash,
            }
          : null,
        categoryIds: parseJsonArray(a.categoryIdsJson).map((r) => r.category_id),
        photos: parseJsonArray(a.photosJson),
        eans: parseJsonArray(a.eansJson).map((r) => r.ean),
        prices: parseJsonArray(a.pricesJson),
        optionsCount: a.optionsCount,
        articleListCount: a.articleListCount,
        childCount: a.childCount,
        fatherArticleId: a.fatherArticleId,
        fatherSku: a.fatherSku,
      },
    };
  };
}