require 'spec_helper'

describe Spree::OrderUpdater do
  # Copied pretty much verbatim from Spree 2.4. Remove this file once we get there,
  # assuming the unchanged 2.4 logic still works for us.
  # Only changes are stubs of :empty? instead of :size
  let(:order) { Spree::Order.new }
  let(:updater) { order.updater }

  it "is failed if no valid payments" do
    order.stub_chain(:payments, :valid, :empty?).and_return(true)

    updater.update_payment_state
    order.payment_state.should == 'failed'
  end

  context "payment total is greater than order total" do
    it "is credit_owed" do
      order.payment_total = 2
      order.total = 1

      expect {
        updater.update_payment_state
      }.to change { order.payment_state }.to 'credit_owed'
    end
  end

  context "order total is greater than payment total" do
    it "is credit_owed" do
      order.payment_total = 1
      order.total = 2

      expect {
        updater.update_payment_state
      }.to change { order.payment_state }.to 'balance_due'
    end
  end

  context "order total equals payment total" do
    it "is paid" do
      order.payment_total = 30
      order.total = 30

      expect {
        updater.update_payment_state
      }.to change { order.payment_state }.to 'paid'
    end
  end

  context "order is canceled" do
    before do
      order.state = 'canceled'
    end

    context "and is still unpaid" do
      it "is void" do
        order.payment_total = 0
        order.total = 30
        expect {
          updater.update_payment_state
        }.to change { order.payment_state }.to 'void'
      end
    end

    context "and is paid" do
      it "is credit_owed" do
        order.payment_total = 30
        order.total = 30
        order.stub_chain(:payments, :valid, :empty?).and_return(false)
        order.stub_chain(:payments, :completed, :empty?).and_return(false)
        expect {
          updater.update_payment_state
        }.to change { order.payment_state }.to 'credit_owed'
      end
    end

    context "and payment is refunded" do
      it "is void" do
        order.payment_total = 0
        order.total = 30
        order.stub_chain(:payments, :valid, :empty?).and_return(false)
        order.stub_chain(:payments, :completed, :empty?).and_return(false)
        expect {
          updater.update_payment_state
        }.to change { order.payment_state }.to 'void'
      end
    end
  end

  context 'when the set payment_state does not match the last payment_state' do
    before { order.payment_state = 'previous_to_paid' }

    context 'and the order is being updated' do
      before { allow(order).to receive(:persisted?) { true } }

      it 'creates a new state_change for the order' do
        expect { updater.update_payment_state }
          .to change { order.state_changes.size }.by(1)
      end
    end

    context 'and the order is being created' do
      before { allow(order).to receive(:persisted?) { false } }

      it 'creates a new state_change for the order' do
        expect { updater.update_payment_state }
          .not_to change { order.state_changes.size }
      end
    end
  end

  context 'when the set payment_state matches the last payment_state' do
    before { order.payment_state = 'paid' }

    it 'does not create any state_change' do
      expect { updater.update_payment_state }
        .not_to change { order.state_changes.size }
    end
  end
end