import { Injectable, NotFoundException } from '@nestjs/common';
import { DataSource } from 'typeorm';

@Injectable()
export class InventoryFamilyCatalogService {
  constructor(private readonly dataSource: DataSource) {}

  async findings(familyId: string) {
    const [family] = await this.dataSource.query(`
      SELECT id,code,name,level,information_labels AS "informationLabels"
      FROM inventory_families
      WHERE id=$1::uuid AND is_active=true
    `, [familyId]) as Array<{
      id: string;
      code: string;
      name: string;
      level: string;
      informationLabels: string[];
    }>;
    if (!family) {
      throw new NotFoundException({
        code: 'INVENTORY_FAMILY_NOT_FOUND',
        message: 'La familia técnica no existe',
      });
    }
    const items = await this.dataSource.query(`
      SELECT item.id,item.code,item.source_number AS "sourceNumber",item.title,
        item.legal_basis AS "legalBasis",item.glossary,item.suggested_severity AS "suggestedSeverity",
        category.id AS "categoryId",category.code AS "categoryCode",category.name AS "categoryName"
      FROM finding_catalog_item_inventory_families mapping
      JOIN finding_catalog_items item ON item.id=mapping.catalog_item_id
      JOIN finding_categories category ON category.id=item.category_id
      WHERE mapping.inventory_family_id=$1::uuid
        AND item.is_active=true AND category.is_active=true
      ORDER BY category.sort_order,item.source_number,item.title
    `, [familyId]);
    return { family, items, count: items.length };
  }
}