require 'spec_helper'

describe Internals::Indexed::Category do

  before(:each) do
    @index               = stub :index, :name => :some_index
    @partial_strategy    = stub :partial, :use_exact_for_partial? => false
    @weights_strategy    = stub :weights
    @similarity_strategy = stub :similarity
    
    @exact   = stub :exact, :dump => nil
    @partial = stub :partial, :dump => nil
    
    @category = described_class.new :some_name, @index, :partial    => @partial_strategy,
                                                        :weights    => @weights_strategy,
                                                        :similarity => @similarity_strategy,
                                                        :qualifiers => [:q, :qualifier]
    
    @category.stub! :exclaim
  end
  
  describe 'partial' do
    context 'default' do
      before(:each) do
        @category = described_class.new :some_name, @index
      end
      context 'with a partial strategy that uses the exact index' do
        before(:each) do
          @partial_strategy.stub! :use_exact_for_partial? => true
        end
        it 'returns the partial index' do
          @category.partial.should be_kind_of(Internals::Indexed::Bundle::Memory)
        end
      end
      context 'with a partial strategy that uses the partial index (default)' do
        it 'returns the partial index' do
          @category.partial.should be_kind_of(Internals::Indexed::Bundle::Memory)
        end
      end
    end
    context 'indexed_bundle_class defined' do
      before(:each) do
        @category = described_class.new :some_name, @index, :indexed_bundle_class => Internals::Indexed::Bundle::Redis
      end
      context 'with a partial strategy that uses the exact index' do
        before(:each) do
          @partial_strategy.stub! :use_exact_for_partial? => true
        end
        it 'returns the partial index' do
          @category.partial.should be_kind_of(Internals::Indexed::Bundle::Redis)
        end
      end
      context 'with a partial strategy that uses the partial index (default)' do
        it 'returns the partial index' do
          @category.partial.should be_kind_of(Internals::Indexed::Bundle::Redis)
        end
      end
    end
  end
  
  describe 'generate_qualifiers_from' do
    context 'with qualifiers' do
      it 'returns that' do
        @category.generate_qualifiers_from(:qualifiers => [:a, :b]).should == [:a, :b]
      end
    end
    context 'without anything' do
      it 'returns that' do
        @category.generate_qualifiers_from({}).should == nil
      end
    end
    context 'with qualifier' do
      it 'returns that' do
        @category.generate_qualifiers_from(:qualifier => :a).should == [:a]
      end
    end
  end
  
  describe 'weight' do
    before(:each) do
      @token = stub :token, :text => :some_text
    end
    context 'partial bundle' do
      before(:each) do
        @category.stub! :bundle_for => @partial
      end
      it 'should receive weight with the token text' do
        @partial.should_receive(:weight).once.with :some_text

        @category.weight @token
      end
    end
    context 'exact bundle' do
      before(:each) do
        @category.stub! :bundle_for => @exact
      end
      it 'should receive weight with the token text' do
        @exact.should_receive(:weight).once.with :some_text

        @category.weight @token
      end
    end
  end

  describe 'ids' do
    before(:each) do
      @token = stub :token, :text => :some_text
    end
    context 'partial bundle' do
      before(:each) do
        @category.stub! :bundle_for => @partial
      end
      it 'should receive ids with the token text' do
        @partial.should_receive(:ids).once.with :some_text

        @category.ids @token
      end
    end
    context 'exact bundle' do
      before(:each) do
        @category.stub! :bundle_for => @exact
      end
      it 'should receive ids with the token text' do
        @exact.should_receive(:ids).once.with :some_text

        @category.ids @token
      end
    end
  end

  describe 'combination_for' do
    context 'no weight for token' do
      before(:each) do
        @category.stub! :weight => nil
      end
      it 'should return nil' do
        @category.combination_for(:anything).should == nil
      end
    end
    context 'weight for token' do
      before(:each) do
        @token = stub :token, :text => :some_text
        @category.stub! :weight => :some_weight, :bundle_for => :bundle
      end
      it 'should return a new combination' do
        @category.combination_for(@token).should be_kind_of(Internals::Query::Combination)
      end
      it 'should create the combination correctly' do
        Internals::Query::Combination.should_receive(:new).once.with @token, @category

        @category.combination_for @token
      end
    end
  end
  
  context 'stubbed exact/partial' do
    before(:each) do
      @category.stub! :exact => (@exact = stub :exact)
      @category.stub! :partial => (@partial = stub :partial)
    end
    describe 'bundle_for' do
      it 'should return the right bundle' do
        token = stub :token, :partial? => false

        @category.bundle_for(token).should == @exact
      end
      it 'should return the right bundle' do
        token = stub :token, :partial? => true

        @category.bundle_for(token).should == @partial
      end
    end

    describe 'load_from_cache' do
      it 'should call two methods' do
        @exact.should_receive(:load).once
        @partial.should_receive(:load).once

        @category.load_from_cache
      end
    end
  end

end