module Suppliers
  class ProductsController < Suppliers::ApplicationController

    # GET /products
    # GET /products.json
    def index
      @products = current_supplier.products

      respond_to do |format|
        format.html # index.html.erb
        format.json { render json: @products }
      end
    end

    # GET /products/1
    # GET /products/1.json
    def show
      @product = Product.find_by_supplier_id_and_id!(current_supplier.id, params[:id])

      respond_to do |format|
        format.html # show.html.erb
        format.json { render json: @product }
      end
    end

    # GET /products/new
    # GET /products/new.json
    def new
      @product = Product.new
      @product.add_product_category ProductCategory.find_by_supplier_id_and_id!(current_supplier.id, params[:product_category_id]) if params[:product_category_id].present?

      respond_to do |format|
        format.html # new.html.erb
        format.json { render json: @product }
      end
    end

    # GET /products/1/edit
    def edit
      @product = Product.find(params[:id])
    end

    # POST /products
    # POST /products.json
    def create
      @product = Product.new(product_params)
      @product.supplier = current_supplier

      respond_to do |format|
        if @product.save
          format.html { redirect_to [:suppliers, :products], notice: t('action.create.successfull', model: Product.model_name.human) }
          format.json { render json: @product, status: :created, location: @product }
        else
          format.html { render action: "new" }
          format.json { render json: @product.errors, status: :unprocessable_entity }
        end
      end
    end

    # PUT /products/1
    # PUT /products/1.json
    def update
      @product = Product.find_by_supplier_id_and_id!(current_supplier.id, params[:id])

      respond_to do |format|
        if @product.update_attributes(product_params)
          format.html { redirect_to [:suppliers, :products], notice: t('action.update.successfull', model: Product.model_name.human) }
          format.json { head :no_content }
        else
          format.html { render action: "edit" }
          format.json { render json: @product.errors, status: :unprocessable_entity }
        end
      end
    end

    # DELETE /products/1
    # DELETE /products/1.json
    def destroy
      @product = Product.find_by_supplier_id_and_id!(current_supplier.id, params[:id])
      @product.destroy

      respond_to do |format|
        format.html { redirect_to suppliers_products_url, notice: t('action.destroy.successfull', model: Product.model_name.human) }
        format.json { head :no_content }
      end
    end

    def preview_products
      #TODO: time zone correction, since the hour and minute are of the supplier time zone, not the system time zone
      @time = Time.parse("#{params[:date]}T#{params[:hour]}:#{params[:minute]}:00") rescue Time.now
      product_categories = ProductCategory.for_supplier_in_time(current_supplier, @time)
      render json: {categories: product_categories.map(&:to_client_format).select(&:present?)}
    end

    private

    def product_params
      params.require(:product).permit(:name, :code, :price, product_category_ids: [])
    end
  end
end