require 'spec_helper'
require 'new_post_manager'

describe NewPostManager do

  let(:topic) { Fabricate(:topic) }

  context "default action" do
    it "creates the post by default" do
      manager = NewPostManager.new(topic.user, raw: 'this is a new post', topic_id: topic.id)
      result = manager.perform

      expect(result.action).to eq(:create_post)
      expect(result).to be_success
      expect(result.post).to be_present
      expect(result.post).to be_a(Post)
    end
  end

  context "extensibility" do

    before do
      @counter = 0

      @counter_handler = lambda do |manager|
        result = nil
        if manager.args[:raw] == 'this post increases counter'
          @counter += 1
          result = NewPostResult.new(:counter, true)
        end

        result
      end

      @queue_handler = -> (manager) { manager.args[:raw] =~ /queue me/ ? manager.enqueue('test') : nil }

      NewPostManager.add_handler(&@counter_handler)
      NewPostManager.add_handler(&@queue_handler)
    end

    after do
      NewPostManager.handlers.delete(@counter_handler)
      NewPostManager.handlers.delete(@queue_handler)
    end

    it "calls custom handlers" do
      manager = NewPostManager.new(topic.user, raw: 'this post increases counter', topic_id: topic.id)

      result = manager.perform

      expect(result.action).to eq(:counter)
      expect(result).to be_success
      expect(result.post).to be_blank
      expect(@counter).to be(1)
      expect(QueuedPost.new_count).to be(0)
    end

    it "calls custom enqueuing handlers" do
      manager = NewPostManager.new(topic.user, raw: 'to the handler I say enqueue me!', topic_id: topic.id)

      result = manager.perform

      expect(result.action).to eq(:enqueued)
      expect(result).to be_success
      expect(result.post).to be_blank
      expect(QueuedPost.new_count).to be(1)
      expect(@counter).to be(0)
    end

    it "if nothing returns a result it creates a post" do
      manager = NewPostManager.new(topic.user, raw: 'this is a new post', topic_id: topic.id)

      result = manager.perform

      expect(result.action).to eq(:create_post)
      expect(result).to be_success
      expect(result.post).to be_present
      expect(@counter).to be(0)
    end

  end

end