require 'spec_helper'

describe ActiveRecordSurvey::Survey do
	describe 'a survey' do
		before(:all) do
			@survey = ActiveRecordSurvey::Survey.new

			@q1 = ActiveRecordSurvey::Node::Question.new()
			@q1_a1 = ActiveRecordSurvey::Node::Answer.new()
			@q1_a2 = ActiveRecordSurvey::Node::Answer.new()
			@q1_a3 = ActiveRecordSurvey::Node::Answer.new()

			@q2 = ActiveRecordSurvey::Node::Question.new()
			@q2_a1 = ActiveRecordSurvey::Node::Answer.new()
			@q2_a2 = ActiveRecordSurvey::Node::Answer.new()

			@q3 = ActiveRecordSurvey::Node::Question.new()
			@q3_a1 = ActiveRecordSurvey::Node::Answer.new()
			@q3_a2 = ActiveRecordSurvey::Node::Answer.new()

			@q4 = ActiveRecordSurvey::Node::Question.new()
			@q4_a1 = ActiveRecordSurvey::Node::Answer.new()
			@q4_a2 = ActiveRecordSurvey::Node::Answer.new()

			q1_nodes = @survey.build_question(@q1, [@q1_a1, @q1_a2, @q1_a3])
			q2_nodes = @survey.build_question(@q2, [@q2_a1, @q2_a2], q1_nodes[1])
			q4_nodes = @survey.build_question(@q4, [@q4_a1, @q4_a2], q2_nodes[1])

			q3_nodes = @survey.build_question(@q3, [@q3_a1, @q3_a2], q2_nodes[2])
			q4_nodes = @survey.build_question(@q4, [@q4_a1, @q4_a2], q3_nodes[1])
			q4_nodes = @survey.build_question(@q4, [@q4_a1, @q4_a2], q3_nodes[2])

			q3_nodes = @survey.build_question(@q3, [@q3_a1, @q3_a2], q1_nodes[2])
			q4_nodes = @survey.build_question(@q4, [@q4_a1, @q4_a2], q3_nodes[1])
			q4_nodes = @survey.build_question(@q4, [@q4_a1, @q4_a2], q3_nodes[2])

			q4_nodes = @survey.build_question(@q4, [@q4_a1, @q4_a2], q1_nodes[3])

			@survey.save
		end

		describe ActiveRecordSurvey::Instance do
			it 'should allow valid instance_nodes to save' do
				instance = ActiveRecordSurvey::Instance.new(:survey => @survey)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q1_a1
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q2_a2
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q3_a2
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q4_a2
				)
				instance.save
				expect(instance.valid?).to be(true)
			end

			it 'should prevent invalid instance_nodes from saving' do
				instance = ActiveRecordSurvey::Instance.new(:survey => @survey)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q1_a1
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q2_a2
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q4_a2
				)
				instance.save
				expect(instance.valid?).to be(false)
			end

			it 'should allow only allow instance_nodes with one valid path' do
				instance = ActiveRecordSurvey::Instance.new(:survey => @survey)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q1_a1
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q2_a2
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q3_a2
				)
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q4_a2
				)
				# This vote provides TWO paths
				instance.instance_nodes.build(
					:instance => instance,
					:node => @q1_a3
				)
				instance.save
				expect(instance.valid?).to be(false)
			end
		end
	end
end