require 'pact_broker/pacts/repository'

module PactBroker
  module Pacts
    describe Repository do
      let(:td) { TestDataBuilder.new }

      describe "#find_for_verification" do

        def find_by_consumer_version_number(consumer_version_number)
          subject.find{ |pact| pact.consumer_version_number == consumer_version_number }
        end

        def find_by_consumer_name_and_consumer_version_number(consumer_name, consumer_version_number)
          subject.find{ |pact| pact.consumer_name == consumer_name && pact.consumer_version_number == consumer_version_number }
        end


        subject { Repository.new.find_for_verification("Bar", consumer_version_selectors) }

        context "when there are no selectors" do
          before do
            td.create_pact_with_hierarchy("Foo", "foo-latest-prod-version", "Bar")
              .create_consumer_version_tag("prod")
              .create_consumer_version("not-latest-dev-version", tag_names: ["dev"])
              .comment("next pact not selected")
              .create_pact
              .create_consumer_version("foo-latest-dev-version", tag_names: ["dev"])
              .create_pact
              .create_consumer("Baz")
              .create_consumer_version("baz-latest-dev-version", tag_names: ["dev"])
              .create_pact
          end

          let(:consumer_version_selectors) { [] }

          it "returns the latest pact for each consumer" do
            expect(subject.size).to eq 2
            expect(find_by_consumer_name_and_consumer_version_number("Foo", "foo-latest-dev-version")).to_not be nil
            expect(find_by_consumer_name_and_consumer_version_number("Baz", "baz-latest-dev-version")).to_not be nil
            expect(subject.all?(&:overall_latest?)).to be true
          end
        end

        context "when the latest consumer tag names are specified" do
          before do
            td.create_pact_with_hierarchy("Foo", "foo-latest-prod-version", "Bar")
              .create_consumer_version_tag("prod")
              .create_consumer_version("not-latest-dev-version", tag_names: ["dev"])
              .comment("next pact not selected")
              .create_pact
              .create_consumer_version("foo-latest-dev-version", tag_names: ["dev"])
              .create_pact
              .create_consumer("Baz")
              .create_consumer_version("baz-latest-dev-version", tag_names: ["dev"])
              .create_consumer_version_tag("prod")
              .create_pact
          end

          let(:pact_selector_1) { double('selector', tag: 'dev', latest: true) }
          let(:pact_selector_2) { double('selector', tag: 'prod', latest: true) }
          let(:consumer_version_selectors) do
            [pact_selector_1, pact_selector_2]
          end

          it "returns the latest pact with the specified tags for each consumer" do
            expect(find_by_consumer_version_number("foo-latest-prod-version").selectors).to eq [Selector.latest_for_tag('prod')]
            expect(find_by_consumer_version_number("foo-latest-dev-version").selectors).to eq [Selector.latest_for_tag('dev')]
            expect(find_by_consumer_version_number("baz-latest-dev-version").selectors.sort_by{ |s| s[:tag] }).to eq [{ tag: 'dev', latest: true }, { tag: 'prod', latest: true }]
            expect(subject.size).to eq 3
          end

          it "sets the latest_consumer_version_tag_names" do
            expect(find_by_consumer_version_number("foo-latest-prod-version").selectors.collect(&:tag)).to eq ['prod']
          end
        end

        context "when all versions with a given tag are requested" do
          before do
            td.create_pact_with_hierarchy("Foo2", "prod-version-1", "Bar2")
              .create_consumer_version_tag("prod")
              .create_consumer_version("not-prod-version", tag_names: %w[master])
              .create_pact
              .create_consumer_version("prod-version-2", tag_names: %w[prod])
              .create_pact
          end

          let(:consumer_version_selectors) { [pact_selector_1] }
          let(:pact_selector_1) { double('selector', tag: 'prod', latest: nil) }

          subject { Repository.new.find_for_verification("Bar2", consumer_version_selectors) }

          it "returns all the versions with the specified tag" do
            expect(subject.size).to be 2
            expect(find_by_consumer_version_number("prod-version-1").selectors.collect(&:tag)).to eq %w[prod]
            expect(find_by_consumer_version_number("prod-version-2").selectors.collect(&:tag)).to eq %w[prod]
          end

          it "dedupes them to ensure that each pact version is only verified once" do
            td.create_consumer_version("prod-version-3", tag_names: %w[prod])
              .republish_same_pact
            expect(subject.size).to be 2
            expect(subject.collect(&:consumer_version_number)).to eq %w[prod-version-1 prod-version-3]
          end
        end

        context "when a pact version has been selected by two different selectors" do
          before do
            td.create_pact_with_hierarchy("Foo", "1", "Bar")
              .create_consumer_version_tag("dev")
              .create_consumer_version_tag("prod")
          end

          let(:consumer_version_selectors) { [pact_selector_1, pact_selector_2] }
          let(:pact_selector_1) { double('selector1', tag: 'prod', latest: nil) }
          let(:pact_selector_2) { double('selector2', tag: 'dev', latest: true) }
          let(:consumer_version_selectors) { [pact_selector_1, pact_selector_2] }

          it "returns a single selected pact with multiple selectors" do
            expect(subject.size).to eq 1
            expect(subject.first.selectors.size).to eq 2
          end
        end

        context "when no selectors are specified" do
          before do
            td.create_pact_with_hierarchy("Foo", "foo-latest-prod-version", "Bar")
              .create_consumer_version_tag("prod")
              .create_consumer_version("not-latest-dev-version", tag_names: ["dev"])
              .comment("next pact not selected")
              .create_pact
              .create_consumer_version("foo-latest-dev-version", tag_names: ["dev"])
              .create_pact
              .create_consumer("Baz")
              .create_consumer_version("baz-latest-dev-version", tag_names: ["dev"])
              .create_pact
          end

          let(:consumer_version_selectors) { [] }

          it "returns the latest pact for each provider" do
            expect(find_by_consumer_version_number("foo-latest-dev-version")).to_not be nil
            expect(find_by_consumer_version_number("baz-latest-dev-version")).to_not be nil
            expect(subject.size).to eq 2
          end

          it "does not set the tag name" do
            expect(find_by_consumer_version_number("foo-latest-dev-version").selectors).to eq [{ latest: true }]
            expect(find_by_consumer_version_number("foo-latest-dev-version").overall_latest?).to be true
          end
        end
      end
    end
  end
end