const db = require("../db/db");

const productsJson = require("./products.json")

class ProductController {
  async findAll(req, res) {


    const _products = await db.getProducts();
    const mapedProducts = await _products[0].map(function (item) {
      return {
        id: item.id,
        name: item.name,
        description: item.description,
        type: item.type,
        price: item.price,
        specialPrice: item.specialPrice,
        isNew: item.isNew,
        slug: item.slug,
        category: item.category,
        postalCode: item.postalCode,
        dateExpired: item.dateExpired,
        images: [item.image],
        featured: item.featured,
      }
    })

    //Gerar produtos fake
    /*  const fakeProducts = generateFlowers(50)
     console.log(fakeProducts); */
    const params = req.query;
    let productsFilter = mapedProducts
    console.log(params);

    if (Number(params.featured)) {
      productsFilter = productsFilter.filter(item => item.featured === Number(params.featured))
    }
    if (params.category) {
      productsFilter = productsFilter.filter(item => item.category === Number(params.category))
    }
    if (params.postalCode) {
      productsFilter = productsFilter.filter(item => item.postalCode === params.postalCode)
    }
    if (params.minPrice && !params.maxPrice) {
      productsFilter = productsFilter.filter(item => {
        const price = Number(item.price.replace(/€/g, ''))
        if (price >= Number(params.minPrice)) {
          return item
        }
      })
    }
    if (params.maxPrice && !params.minPrice) {
      productsFilter = productsFilter.filter(item => {
        const price = Number(item.price.replace(/€/g, ''))
        if (price <= Number(params.maxPrice)) {
          return item
        }
      })
    }
    if (params.maxPrice && params.minPrice) {
      productsFilter = productsFilter.filter(item => {
        const price = Number(item.price.replace(/€/g, ''))
        if (price >= Number(params.minPrice) && price <= Number(params.maxPrice)) {
          console.log(price);
          return item
        }
      })
    }
    if (params.dateExpired) {
      const [day, month, year] = params.dateExpired.split("/");
      const dateSearch = new Date(year, month - 1, day);
      productsFilter = productsFilter.filter(item => {
        const [day, month, year] = item.dateExpired.split("/");
        const dateProduct = new Date(year, month - 1, day);
        if (dateProduct >= dateSearch) {
          return item
        }
      })
    }

    if (Number(params.bigPrice)) {
      productsFilter.sort((a, b) => {
        const itemA = Number(a.price.replace(/€/g, ''))
        const itemB = Number(b.price.replace(/€/g, ''))
        return itemB - itemA;
      })
    }

    if (Number(params.lowPrice)) {
      productsFilter.sort((a, b) => {
        const itemA = Number(a.price.replace(/€/g, ''))
        const itemB = Number(b.price.replace(/€/g, ''))
        return itemA - itemB;
      })
    }

    if (params.isNew) {
      productsFilter = productsFilter.filter(item => item.isNew === true)
    }

    let productsFilterPages = []
    const totalItens = params?.itens ? Number(params.itens) : 200
    const page = params.page ? Number(params.page) : 1
    const startIndex = (totalItens * page) - totalItens
    const lastIndex = (totalItens * page)
    const products = productsFilter.slice(startIndex, lastIndex)
    productsFilterPages.push({
      page: page,
      productsPerPage: products.length,
      products: products
    })

    return res.status(200).send({
      data: productsFilterPages
    })
  }

  findBySlug(req, res) {
    const slug = req.params.slug
    const products = productsJson
    const filterSlug = products.filter(item => item.slug === slug)

    return res.status(200).send({
      data: filterSlug
    })
  }
}

module.exports = new ProductController();