require 'spec_helper'

if defined?(Mongoid) && ::Mongoid::VERSION =~ /^3(.*)/

  describe Money do
    let!(:priceable) { Priceable.create(:price => Money.new(100, 'EUR')) }
    let!(:priceable_from_num) { Priceable.create(:price => 1) }
    let!(:priceable_from_string) { Priceable.create(:price => '1 EUR' )}
    let!(:priceable_from_hash) { Priceable.create(:price => {:cents=>100, :currency_iso=>"EUR"} )}
    let!(:priceable_from_hash_with_indifferent_access) {
      Priceable.create(:price => {:cents=>100, :currency_iso=>"EUR"}.with_indifferent_access)
    }
    let(:priceable_from_string_with_hyphen) { Priceable.create(:price => '1-2 EUR' )}
    let(:priceable_from_string_with_unknown_currency) { Priceable.create(:price => '1 TLDR') }
    let(:priceable_with_infinite_precision) { Priceable.create(:price => Money.new(BigDecimal.new('100.1'), 'EUR')) }
    let(:priceable_with_hash_field) {
      Priceable.create(:price_hash => {
        :key1 => Money.new(100, "EUR"),
        :key2 => Money.new(200, "USD")
      })
    }

    context "mongoize" do
      it "mongoizes correctly a Money object to a hash of cents and currency" do
        priceable.price.cents.should == 100
        priceable.price.currency.should == Money::Currency.find('EUR')
      end

      it "mongoizes correctly a Numeric object to a hash of cents and currency" do
        priceable_from_num.price.cents.should == 100
        priceable_from_num.price.currency.should == Money.default_currency
      end

      it "mongoizes correctly a String object to a hash of cents and currency" do
        priceable_from_string.price.cents.should == 100
        priceable_from_string.price.currency.should == Money::Currency.find('EUR')
      end

      context "when MoneyRails.raise_error_on_money_parsing is true" do
        before { MoneyRails.raise_error_on_money_parsing = true }
        after { MoneyRails.raise_error_on_money_parsing = false }

        it "raises exception if the mongoized value is a String with a hyphen" do
          expect { priceable_from_string_with_hyphen }.to raise_error
        end

        it "raises exception if the mongoized value is a String with an unknown currency" do
          expect { priceable_from_string_with_unknown_currency }.to raise_error
        end
      end

      context "when MoneyRails.raise_error_on_money_parsing is false" do
        it "does not mongoizes correctly a String with hyphen in its middle" do
          priceable_from_string_with_hyphen.price.should == nil
        end

        it "does not mongoize correctly a String with an unknown currency" do
          priceable_from_string_with_unknown_currency.price.should == nil
        end
      end

      it "mongoizes correctly a hash of cents and currency" do
        priceable_from_hash.price.cents.should == 100
        priceable_from_hash.price.currency.should == Money::Currency.find('EUR')
      end

      it "mongoizes correctly a HashWithIndifferentAccess of cents and currency" do
        priceable_from_hash_with_indifferent_access.price.cents.should == 100
        priceable_from_hash_with_indifferent_access.price.currency.should == Money::Currency.find('EUR')
      end

      context "infinite_precision = true" do
        before do
          Money.infinite_precision = true
        end

        after do
          Money.infinite_precision = false
        end

        it "mongoizes correctly a Money object to a hash of cents and currency" do
          priceable_with_infinite_precision.price.cents.should == BigDecimal.new('100.1')
          priceable_with_infinite_precision.price.currency.should == Money::Currency.find('EUR')
        end
      end
    end

    it "serializes correctly a Hash field containing Money objects" do
      priceable_with_hash_field.price_hash[:key1][:cents].should == 100
      priceable_with_hash_field.price_hash[:key2][:cents].should == 200
      priceable_with_hash_field.price_hash[:key1][:currency_iso].should == 'EUR'
      priceable_with_hash_field.price_hash[:key2][:currency_iso].should == 'USD'
    end

    context "demongoize" do
      subject { Priceable.first.price }
      it { should be_an_instance_of(Money) }
      it { should == Money.new(100, 'EUR') }
      it "returns nil if a nil value was stored" do
        nil_priceable = Priceable.create(:price => nil)
        nil_priceable.price.should be_nil
      end
      it 'returns nil if an unknown value was stored' do
        zero_priceable = Priceable.create(:price => [])
        zero_priceable.price.should be_nil
      end
    end

    context "evolve" do
      it "transforms correctly a Money object to a Mongo friendly value" do
        Priceable.where(:price => Money.new(100, 'EUR')).first.should == priceable
      end
    end
  end
end