# frozen_string_literal: true

require 'rails_helper'

module ThirdParty
  class Extension < Spree::Base
    # nasty hack so we don't have to create a table to back this fake model
    self.table_name = 'spree_products'
  end
end

RSpec.describe Spree::Product, type: :model do
  context 'product instance' do
    let(:product) { create(:product) }
    let(:variant) { create(:variant, product: product) }

    context '#duplicate' do
      before do
        allow(product).to receive_messages taxons: [create(:taxon)]
      end

      it 'duplicates product' do
        clone = product.duplicate
        expect(clone.name).to eq('COPY OF ' + product.name)
        expect(clone.master.sku).to eq('COPY OF ' + product.master.sku)
        expect(clone.taxons).to eq(product.taxons)
        expect(clone.images.size).to eq(product.images.size)
      end

      it 'calls #duplicate_extra' do
        expect_any_instance_of(Spree::Product).to receive(:duplicate_extra) do |product, old_product|
          product.name = old_product.name.reverse
        end

        clone = product.duplicate
        expect(clone.name).to eq(product.name.reverse)
      end
    end

    describe "#save" do
      before { product.update_columns(updated_at: 1.day.ago) }
      subject { product.save! }

      shared_examples "a change occurred" do
        it "should change updated_at" do
          expect { subject }.to change{ product.updated_at }
        end

        it "should touch taxons" do
          taxon = create(:taxon, product_ids: [product.id])
          taxon.update_columns(updated_at: 1.day.ago)
          product.taxons.reload
          expect { subject }.to change{ taxon.reload.updated_at }
        end
      end

      shared_examples "no change occurred" do
        it "should not change updated_at" do
          expect { subject }.not_to change{ product.updated_at }
        end

        it "should not touch taxons" do
          taxon = create(:taxon, products: [product])
          taxon.update_columns(updated_at: 1.day.ago)
          product.taxons.reload
          expect { subject }.not_to change{ taxon.reload.updated_at }
        end
      end

      context "when nothing has changed" do
        it_behaves_like "no change occurred"
      end

      context "when the product itself was changed" do
        before do
          product.name = "Perri-air"
        end

        it_behaves_like "a change occurred"
      end

      context "when master variant changed" do
        before do
          product.master.sku = "Something changed"
        end

        it_behaves_like "a change occurred"

        it "saves the master" do
          product.save!
          expect(product.reload.master.sku).to eq "Something changed"
        end
      end

      context "when master default price changed" do
        before do
          master = product.master
          master.default_price.price = 11
          master.save!
          product.update_columns(updated_at: 1.day.ago)
          product.master.default_price.price = 12
        end

        it_behaves_like "a change occurred"

        it "saves the default_price" do
          product.save!
          expect(product.reload.master.default_price.price).to eq 12
        end
      end
    end

    context "product has no variants" do
      context "#discard" do
        it "should set deleted_at value" do
          product.discard
          expect(product.deleted_at).not_to be_nil
          expect(product.master.reload.deleted_at).not_to be_nil
        end
      end
    end

    context "product has variants" do
      before do
        create(:variant, product: product)
      end

      context "#discard" do
        it "should set deleted_at value" do
          product.discard
          expect(product.deleted_at).not_to be_nil
          expect(product.variants_including_master).to all(be_discarded)
        end
      end
    end

    context "#price" do
      # Regression test for https://github.com/spree/spree/issues/1173
      it 'strips non-price characters' do
        product.price = "$10"
        expect(product.price).to eq(10.0)
      end
    end

    context "#display_price" do
      before { product.price = 10.55 }

      it "shows the amount" do
        expect(product.display_price.to_s).to eq("$10.55")
      end

      context "with currency set to JPY" do
        before do
          product.master.default_price.currency = 'JPY'
          product.master.default_price.save!
          Spree::Config[:currency] = 'JPY'
        end

        it "displays the currency in yen" do
          expect(product.display_price.to_s).to eq("¥11")
        end
      end
    end

    context "#available?" do
      it "should be available if date is in the past" do
        product.available_on = 1.day.ago
        expect(product).to be_available
      end

      it "should not be available if date is nil or in the future" do
        product.available_on = nil
        expect(product).not_to be_available

        product.available_on = 1.day.from_now
        expect(product).not_to be_available
      end

      it "should not be available if soft-destroyed" do
        product.discard
        expect(product).not_to be_available
      end
    end

    context "variants_and_option_values" do
      let!(:high) { create(:variant, product: product) }
      let!(:low) { create(:variant, product: product) }

      before { high.option_values.destroy_all }

      it "returns only variants with option values" do
        Spree::Deprecation.silence do
          expect(product.variants_and_option_values).to eq([low])
        end
      end
    end

    context "variants_and_option_values_for" do
      let!(:high) { create(:variant, product: product) }
      let!(:low) { create(:variant, product: product) }

      context "when one product does not have option values" do
        before { high.option_values.destroy_all }

        it "returns only variants with option values" do
          expect(product.variants_and_option_values_for).to eq([low])
        end
      end

      context "when asking with different pricing options" do
        let(:pricing_options) { Spree::Config.pricing_options_class.new(currency: "EUR") }

        before do
          low.prices.create(amount: 99.00, currency: "EUR")
        end

        it "returns only variants which have matching prices" do
          expect(product.variants_and_option_values_for).to contain_exactly(low, high)
          expect(product.variants_and_option_values_for(pricing_options)).to contain_exactly(low)
        end
      end

      context 'when a variant has a fallback price' do
        before do
          low.prices.create(country_iso: nil)
        end

        it "returns that variant once" do
          expect(product.variants_and_option_values_for.length).to eq(2)
        end
      end
    end

    describe "#variant_option_values_by_option_type" do
      let(:size) { create(:option_type, name: 'size') }
      let(:length) { create(:option_type, name: 'length') }
      let(:product) { create(:product, option_types: [size, length]) }
      let(:size_small) { create(:option_value, name: 'small', option_type: size, position: 3) }
      let(:size_medium) { create(:option_value, name: 'medium', option_type: size, position: 1) }
      let(:size_large) { create(:option_value, name: 'large', option_type: size, position: 2) }
      let!(:variant) { create(:variant, product: product, option_values: [size_small, size_medium]) }

      subject { product.variant_option_values_by_option_type }

      it "returns the option values associated with the product's variants grouped by option type" do
        expect(subject).to eq({ size => [size_medium, size_small] })
      end
    end

    describe "#find_variant_property_rule" do
      let(:option_value) { create(:option_value) }

      subject { product.find_variant_property_rule([option_value.id]) }

      context "a matching rule exists" do
        let!(:rule) do
          create(:variant_property_rule, product: product, option_value: option_value)
        end

        it "returns the rule" do
          expect(subject).to eq rule
        end
      end

      context "a matching rule doesn't exist" do
        it "returns nil" do
          expect(subject).to be_nil
        end
      end
    end

    describe 'Variants sorting' do
      let(:master){ product.master }

      let!(:second) { create(:variant, product: product) }
      let!(:third)  { create(:variant, product: product) }
      let!(:first)  { create(:variant, product: product) }

      before do
        first.update_columns(position: 2)
        second.update_columns(position: 3)
        third.update_columns(position: 4)
      end

      context 'without master variant' do
        it 'sorts variants by position' do
          expect(product.variants).to eq([first, second, third])
        end
      end

      context 'with master variant' do
        it 'sorts variants by position' do
          expect(product.variants_including_master).to eq([master, first, second, third])
        end
      end
    end

    context "has stock movements" do
      let(:product) { create(:product) }
      let(:variant) { product.master }
      let(:stock_item) { variant.stock_items.first }

      it "doesnt raise ReadOnlyRecord error" do
        Spree::StockMovement.create!(stock_item: stock_item, quantity: 1)
        product.discard
      end
    end

    # Regression test for https://github.com/spree/spree/issues/3737
    context "has stock items" do
      let(:product) { create(:product) }
      it "can retrieve stock items" do
        expect(product.master.stock_items.first).not_to be_nil
        expect(product.stock_items.first).not_to be_nil
      end
    end

    context "slugs" do
      it "normalizes slug on update validation" do
        product.slug = "hey//joe"
        product.valid?
        expect(product.slug).not_to match "/"
      end

      it "renames slug on destroy" do
        old_slug = product.slug
        product.discard
        expect(old_slug).to_not eq product.slug
      end

      it "validates slug uniqueness" do
        existing_product = product
        new_product = create(:product)
        new_product.slug = existing_product.slug

        expect(new_product.valid?).to eq false
      end

      it "falls back to 'name-sku' for slug if regular name-based slug already in use" do
        product1 = build(:product)
        product1.name = "test"
        product1.sku = "123"
        product1.save!

        product2 = build(:product)
        product2.name = "test"
        product2.sku = "456"
        product2.save!

        expect(product2.slug).to eq 'test-456'
      end
    end

    describe "#discard" do
      let(:product) { create(:product, slug: 'my-awesome-product') }

      it "destroys related associations" do
        create(:variant, product: product)
        product.option_types = [create(:option_type)]
        product.master.images = [create(:image)]
        product.taxons = [create(:taxon)]
        product.properties = [create(:property)]

        product.discard

        product.reload
        expect(product.option_types).to be_empty
        expect(product.images).to be_empty
        expect(product.taxons).to be_empty
        expect(product.properties).to be_empty
      end

      it "removes from product promotion rules" do
        promotion = create(:promotion)
        rule = promotion.rules.create!(type: 'Spree::Promotion::Rules::Product', products: [product])

        product.discard

        rule.reload
        expect(rule.products).to be_empty
      end

      it "replaces the slug" do
        product.discard

        expect(product.slug).to match /\A\d+_my-awesome-product\z/

        # Ensure a new product can be created with the slug
        new_product = create(:product, slug: 'my-awesome-product')
        expect(new_product.slug).to eq('my-awesome-product')
      end
    end

    context "associations" do
      describe "product_option_types" do
        context "with no existing option types" do
          before { product.update_columns(updated_at: 1.day.ago) }

          it "touches the product instance when an option type is added" do
            expect {
              product.product_option_types.create(option_type: create(:option_type, name: 'new-option-type'))
            }.to change { product.reload.updated_at }
          end
        end

        context "with an existing option type" do
          before do
            product.product_option_types.create(option_type: create(:option_type, name: 'new-option-type'))
            product.update_columns(updated_at: 1.day.ago)
          end

          it "touches product instance when an option type is removed" do
            expect {
              product.product_option_types = []
            }.to change { product.reload.updated_at }
          end
        end
      end
    end

    context "#really_destroy!" do
      it "destroy the product" do
        product.really_destroy!
        expect(product).not_to be_persisted
      end
    end
  end

  context "properties" do
    let(:product) { create(:product) }

    it "should properly assign properties" do
      product.set_property('the_prop', 'value1')
      expect(product.property('the_prop')).to eq('value1')

      product.set_property('the_prop', 'value2')
      expect(product.property('the_prop')).to eq('value2')
    end

    it "should not create duplicate properties when set_property is called" do
      expect {
        product.set_property('the_prop', 'value2')
        product.save
        product.reload
      }.not_to change(product.properties, :length)

      expect {
        product.set_property('the_prop_new', 'value')
        product.save
        product.reload
        expect(product.property('the_prop_new')).to eq('value')
      }.to change { product.properties.length }.by(1)
    end

    # Regression test for https://github.com/spree/spree/issues/2455
    it "should not overwrite properties' presentation names" do
      Spree::Property.where(name: 'foo').first_or_create!(presentation: "Foo's Presentation Name")
      product.set_property('foo', 'value1')
      product.set_property('bar', 'value2')
      expect(Spree::Property.where(name: 'foo').first.presentation).to eq("Foo's Presentation Name")
      expect(Spree::Property.where(name: 'bar').first.presentation).to eq("bar")
    end

    # Regression test for https://github.com/spree/spree/issues/4416
    context "#possible_promotions" do
      let!(:promotion) do
        create(:promotion, advertise: true, starts_at: 1.day.ago)
      end
      let!(:rule) do
        Spree::Promotion::Rules::Product.create(
          promotion: promotion,
          products: [product]
        )
      end

      it "lists the promotion as a possible promotion" do
        expect(product.possible_promotions).to include(promotion)
      end
    end
  end

  context "#images" do
    let(:product) { create(:product) }
    let(:image) { File.open(File.expand_path('../../fixtures/thinking-cat.jpg', __dir__)) }
    let(:params) { { viewable_id: product.master.id, viewable_type: 'Spree::Variant', attachment: image, alt: "position 2", position: 2 } }

    before do
      Spree::Image.create(params)
      Spree::Image.create(params.merge({ alt: "position 1", position: 1 }))
      Spree::Image.create(params.merge({ viewable_type: 'ThirdParty::Extension', alt: "position 1", position: 2 }))
    end

    it "only looks for variant images" do
      expect(product.images.size).to eq(2)
    end

    it "should be sorted by position" do
      expect(product.images.pluck(:alt)).to eq(["position 1", "position 2"])
    end
  end

  # Regression tests for https://github.com/spree/spree/issues/2352
  context "classifications and taxons" do
    it "is joined through classifications" do
      reflection = Spree::Product.reflect_on_association(:taxons)
      expect(reflection.options[:through]).to eq(:classifications)
    end

    it "will delete all classifications" do
      reflection = Spree::Product.reflect_on_association(:classifications)
      expect(reflection.options[:dependent]).to eq(:delete_all)
    end
  end

  context '#total_on_hand' do
    it 'should be infinite if track_inventory_levels is false' do
      Spree::Config[:track_inventory_levels] = false
      expect(build(:product, variants_including_master: [build(:master_variant)]).total_on_hand).to eql(Float::INFINITY)
    end

    it 'should be infinite if variant is on demand' do
      Spree::Config[:track_inventory_levels] = true
      expect(build(:product, variants_including_master: [build(:on_demand_master_variant)]).total_on_hand).to eql(Float::INFINITY)
    end

    it 'should return sum of stock items count_on_hand' do
      product = create(:product)
      product.stock_items.first.set_count_on_hand 5
      product.variants_including_master.reload # force load association
      expect(product.total_on_hand).to eql(5)
    end

    it 'should return sum of stock items count_on_hand when variants_including_master is not loaded' do
      product = create(:product)
      product.stock_items.first.set_count_on_hand 5
      expect(product.reload.total_on_hand).to eql(5)
    end
  end

  # Regression spec for https://github.com/spree/spree/issues/5588
  context '#validate_master when duplicate SKUs entered' do
    let!(:first_product) { create(:product, sku: 'a-sku') }
    let(:second_product) { build(:product, sku: 'a-sku') }

    subject { second_product }
    it { is_expected.to be_invalid }
  end

  describe '.new' do
    let(:product) { Spree::Product.new(attributes) }

    shared_examples "new product with master" do
      it "initializes master correctly" do
        expect(product.master.is_master).to be true
        expect(product.master.product).to be product
      end
    end

    context 'no attributes' do
      let(:attributes) { {} }
      it_behaves_like "new product with master"
    end

    context 'initializing with variant attributes' do
      let(:attributes) { { sku: 'FOO' } }

      it_behaves_like "new product with master"

      it "initializes the variant with the correct attributes" do
        expect(product.master.sku).to eq 'FOO'
        expect(product.sku).to eq 'FOO'
      end
    end
  end
end