# frozen_string_literal: true

module Api
  # ProductsController
  class ProductsController < MasterController
    def show
      render json: not_found_error_message, status: :not_found and return if product.nil?

      render json: serialized_object.serializable_hash, status: :ok
    end

    def index
      @products = Product.all

      render json: serialized_collection.serializable_hash, status: :ok
    end

    def create
      @product = Product.new(object_params)

      if @product.save
        render json: serialized_object.serializable_hash, status: :ok
      else
        render json: { error_messages: @product.errors.full_messages }, status: :unprocessable_entity
      end
    end

    def update
      @product = Product.find_by(public_id: params[:id])

      if @product.update(object_params)
        render json: serialized_object.serializable_hash, status: :ok
      else
        render json: { error_messages: @product.errors.full_messages }, status: :unprocessable_entity
      end
    end

    def destroy
      @product = Product.find_by(public_id: params[:id])

      render json: not_found_error_message, status: :not_found and return if @product.nil?

      @product.destroy
      render status: :see_other
    end

    private

    def product
      @product ||= Product.joins(:company)
                          .select('products.*', 'companies.name as company_name', 
                                  'companies.short_name as company_short_name')
                          .find_by(public_id: params[:id])
    end

    def serialized_object
      Serializers::ProductSerializer.new(product)
    end

    def serialized_collection
      Serializers::ProductSerializer.new(
        @products.joins(:company)
                 .select('products.*', 'companies.name as company_name', 'companies.short_name as company_short_name')
                 .includes(picture_attachment: :blob).page(params[:page])
      )
    end

    def permitted_params
      params.permit(:name, :unitary_price, :bulk_price, :picture, :available_quantity, :categories, :company_id)
    end

    def object_params
      categories = permitted_params[:categories].split(',')
      permitted_params.merge(categories:, public_id: SecureRandom.hex(12))
    end

    def not_found_error_message
      { error_message: 'No existe el producto' }
    end
  end
end