require "spec_helper"

describe "acts_as_tagger" do
  describe "Tagger Method Generation" do
    before(:each) do
      @tagger = User.new
    end

    it "should add #is_tagger? query method to the class-side" do
      expect(User).to respond_to(:is_tagger?)
    end

    it "should return true from the class-side #is_tagger?" do
      expect(User.is_tagger?).to be_truthy
    end

    it "should return false from the base #is_tagger?" do
      expect(ActiveRecord::Base.is_tagger?).to be_falsy
    end

    it "should add #is_tagger? query method to the singleton" do
      expect(@tagger).to respond_to(:is_tagger?)
    end

    it "should add #tag method on the instance-side" do
      expect(@tagger).to respond_to(:tag)
    end

    it "should generate an association for #owned_taggings and #owned_tags" do
      expect(@tagger).to respond_to(:owned_taggings, :owned_tags)
    end
  end

  describe "#tag" do
    context "when called with a non-existent tag context" do
      before(:each) do
        @tagger = User.new
        @taggable = TaggableModel.new(name: "Richard Prior")
      end

      it "should by default not throw an exception " do
        expect(@taggable.tag_list_on(:foo)).to be_empty
        expect(-> {
          @tagger.tag(@taggable, with: "this, and, that", on: :foo)
        }).to_not raise_error
      end

      it "should by default create the tag context on-the-fly" do
        expect(@taggable.tag_list_on(:here_ond_now)).to be_empty
        @tagger.tag(@taggable, with: "that", on: :here_ond_now)
        expect(@taggable.tag_list_on(:here_ond_now)).to_not include("that")
        expect(@taggable.all_tags_list_on(:here_ond_now)).to include("that")
      end

      it "should show all the tag list when both public and owned tags exist" do
        @taggable.tag_list = "ruby, python"
        @tagger.tag(@taggable, with: "java, lisp", on: :tags)
        expect(@taggable.all_tags_on(:tags).map(&:name).sort).to eq(%w[ruby python java lisp].sort)
      end

      it "should not add owned tags to the common list" do
        @taggable.tag_list = "ruby, python"
        @tagger.tag(@taggable, with: "java, lisp", on: :tags)
        expect(@taggable.tag_list).to eq(%w[ruby python])
        @tagger.tag(@taggable, with: "", on: :tags)
        expect(@taggable.tag_list).to eq(%w[ruby python])
      end

      it "should throw an exception when the default is over-ridden" do
        expect(@taggable.tag_list_on(:foo_boo)).to be_empty
        expect(-> {
          @tagger.tag(@taggable, with: "this, and, that", on: :foo_boo, force: false)
        }).to raise_error(RuntimeError)
      end

      it "should not create the tag context on-the-fly when the default is over-ridden" do
        expect(@taggable.tag_list_on(:foo_boo)).to be_empty
        begin
          @tagger.tag(@taggable, with: "this, and, that", on: :foo_boo, force: false)
        rescue
          expect(@taggable.tag_list_on(:foo_boo)).to be_empty
        end
      end
    end

    describe "when called by multiple tagger's" do
      before(:each) do
        @user_x = User.create(name: "User X")
        @user_y = User.create(name: "User Y")
        @taggable = TaggableModel.create(name: "make_taggable", tag_list: "plugin")

        @user_x.tag(@taggable, with: "ruby, rails", on: :tags)
        @user_y.tag(@taggable, with: "ruby, plugin", on: :tags)

        @user_y.tag(@taggable, with: "", on: :tags)
        @user_y.tag(@taggable, with: "", on: :tags)
      end

      it "should delete owned tags" do
        expect(@user_y.owned_tags).to be_empty
      end

      it "should not delete other taggers tags" do
        expect(@user_x.owned_tags.count).to eq(2)
      end

      it "should not delete original tags" do
        expect(@taggable.all_tags_list_on(:tags)).to include("plugin")
      end
    end
  end
end