require 'spec_helper'

module Spree
  describe Api::VariantsController, :type => :controller do
    render_views

    let!(:product) { create(:product) }
    let!(:variant) do
      variant = product.master
      variant.option_values << create(:option_value)
      variant
    end

    let!(:base_attributes) { Api::ApiHelpers.variant_attributes }
    let!(:show_attributes) { base_attributes.dup.push(:in_stock, :display_price) }
    let!(:new_attributes) { base_attributes }

    before do
      stub_authentication!
    end

    it "can see a paginated list of variants" do
      api_get :index
      first_variant = json_response["variants"].first
      expect(first_variant).to have_attributes(show_attributes)
      expect(first_variant["stock_items"]).to be_present
      expect(json_response["count"]).to eq(1)
      expect(json_response["current_page"]).to eq(1)
      expect(json_response["pages"]).to eq(1)
    end

    it 'can control the page size through a parameter' do
      create(:variant)
      api_get :index, :per_page => 1
      expect(json_response['count']).to eq(1)
      expect(json_response['current_page']).to eq(1)
      expect(json_response['pages']).to eq(3)
    end

    it 'can query the results through a paramter' do
      expected_result = create(:variant, :sku => 'FOOBAR')
      api_get :index, :q => { :sku_cont => 'FOO' }
      expect(json_response['count']).to eq(1)
      expect(json_response['variants'].first['sku']).to eq expected_result.sku
    end

    it "variants returned contain option values data" do
      api_get :index
      option_values = json_response["variants"].last["option_values"]
      expect(option_values.first).to have_attributes([:name,
                                                 :presentation,
                                                 :option_type_name,
                                                 :option_type_id])
    end

    it "variants returned contain images data" do
      variant.images.create!(:attachment => image("thinking-cat.jpg"))

      api_get :index

      expect(json_response["variants"].last).to have_attributes([:images])
      expect(json_response['variants'].first['images'].first).to have_attributes([:attachment_file_name,
                                                                               :attachment_width,
                                                                               :attachment_height,
                                                                               :attachment_content_type,
                                                                               :mini_url,
                                                                               :small_url,
                                                                               :product_url,
                                                                               :large_url])

    end

    # Regression test for #2141
    context "a deleted variant" do
      before do
        variant.update_column(:deleted_at, Time.now)
      end

      it "is not returned in the results" do
        api_get :index
        expect(json_response["variants"].count).to eq(0)
      end

      it "is not returned even when show_deleted is passed" do
        api_get :index, :show_deleted => true
        expect(json_response["variants"].count).to eq(0)
      end
    end

    context "pagination" do
      it "can select the next page of variants" do
        second_variant = create(:variant)
        api_get :index, :page => 2, :per_page => 1
        expect(json_response["variants"].first).to have_attributes(show_attributes)
        expect(json_response["total_count"]).to eq(3)
        expect(json_response["current_page"]).to eq(2)
        expect(json_response["pages"]).to eq(3)
      end
    end

    it "can see a single variant" do
      api_get :show, :id => variant.to_param
      expect(json_response).to have_attributes(show_attributes)
      expect(json_response["stock_items"]).to be_present
      option_values = json_response["option_values"]
      expect(option_values.first).to have_attributes([:name,
                                                 :presentation,
                                                 :option_type_name,
                                                 :option_type_id])
    end

    it "can see a single variant with images" do
      variant.images.create!(:attachment => image("thinking-cat.jpg"))

      api_get :show, :id => variant.to_param

      expect(json_response).to have_attributes(show_attributes + [:images])
      option_values = json_response["option_values"]
      expect(option_values.first).to have_attributes([:name,
                                                 :presentation,
                                                 :option_type_name,
                                                 :option_type_id])
    end

    it "can learn how to create a new variant" do
      api_get :new
      expect(json_response["attributes"]).to eq(new_attributes.map(&:to_s))
      expect(json_response["required_attributes"]).to be_empty
    end

    it "cannot create a new variant if not an admin" do
      api_post :create, :variant => { :sku => "12345" }
      assert_unauthorized!
    end

    it "cannot update a variant" do
      api_put :update, :id => variant.to_param, :variant => { :sku => "12345" }
      assert_not_found!
    end

    it "cannot delete a variant" do
      api_delete :destroy, :id => variant.to_param
      assert_not_found!
      expect { variant.reload }.not_to raise_error
    end

    context "as an admin" do
      sign_in_as_admin!
      let(:resource_scoping) { { :product_id => variant.product.to_param } }

      # Test for #2141
      context "deleted variants" do
        before do
          variant.update_column(:deleted_at, Time.now)
        end

        it "are visible by admin" do
          api_get :index, :show_deleted => 1
          expect(json_response["variants"].count).to eq(1)
        end
      end

      it "can create a new variant" do
        api_post :create, :variant => { :sku => "12345" }
        expect(json_response).to have_attributes(new_attributes)
        expect(response.status).to eq(201)
        expect(json_response["sku"]).to eq("12345")

        expect(variant.product.variants.count).to eq(1)
      end

      it "can update a variant" do
        api_put :update, :id => variant.to_param, :variant => { :sku => "12345" }
        expect(response.status).to eq(200)
      end

      it "can delete a variant" do
        api_delete :destroy, :id => variant.to_param
        expect(response.status).to eq(204)
        expect { Spree::Variant.find(variant.id) }.to raise_error(ActiveRecord::RecordNotFound)
      end
    end
  end
end