require File.expand_path(File.dirname(__FILE__) + '/spec_helper')

class Tester
  include ::Trigga::ParamFu
end

describe ::Trigga::ParamFu do
  before(:each) do
    @t = Tester.new
  end  
  
  describe "class methods" do
    
    describe "key_with_id" do
      it "should add '_id' onto the given symbol" do
        Tester.key_with_id(:blart).should == :blart_id
      end
    end
    
    describe "obj_or_id" do
      describe "when the given hash already contains :(given_key)_id" do
        it "should not change the value of that _id key" do
          @my_obj = mock("object")
          @my_obj.stub!(:id).and_return(456)
          @my_hash = {:my_key_id=>123, :my_obj=>@my_obj}
          Tester.obj_or_id( @my_hash, :my_key )
          @my_hash[:my_key_id].should == 123
        end
      end
      
      describe "when the given hash does not already contain :(given_key)_id" do
        
        describe "and the given hash contains the given key without an added _id" do
          it "should set the :(given_key)_id to the id of the object" do
            @mock_obj = mock("obj")
            @mock_obj.stub!(:id).and_return(123)
            Tester.obj_or_id( {:my_obj=>@mock_obj}, :my_obj ).should == 123
          end
        end
      end
    end
    
    describe "require_param" do
      context "when given a single key" do
        
        context "when key is not present in opts" do
          it "should raise an ArgumentError" do
            lambda{ Tester.require_param( {:key1=>'value1'}, :key2 ) }.should raise_error(ArgumentError)
          end
        end
        context "when key is present in opts" do
          it "should not raise an error" do
            lambda{ Tester.require_param( {:key1=>'value1'}, :key1 ) }.should_not raise_error(ArgumentError)
          end
        end
      end
      context "when given multiple keys" do
        context "when all keys are present" do
          it "should not raise an error" do
            lambda{ Tester.require_param( {:key1=>'value1', :key2=>'value2'}, :key2, :key1 ) }.should_not raise_error(ArgumentError)
          end
        end
        context "when at least one key is not present" do
          it "should raise an ArgumentError " do
            lambda{ Tester.require_param( {:key1=>'value1', :key2=>'value2'}, :key2, :key1, :key3 ) }.should raise_error(ArgumentError)
          end
        end
      end
    end
  
    describe "require_obj_or_id" do
      context "when the key is present" do
        it "should not raise an error" do
          lambda{ Tester.require_obj_or_id( {:obj_name=>'value1'}, :obj_name ) }.should_not raise_error(ArgumentError)
        end
      end
      context "when the key is not present" do
        context "when the key suffixed with _id is present" do
          it "should not raise an error" do
            lambda{ Tester.require_obj_or_id( {:obj_id=>'value1'}, :obj ) }.should_not raise_error(ArgumentError)
          end
        end
        context "when the key is not present even suffixed with _id" do
          it "should raise an error" do
            lambda{ Tester.require_obj_or_id( {:key1=>'value1', :key2_id=>123}, :key3 ) }.should raise_error(ArgumentError)
          end
        end
      end
    end
    
    describe "require_one_of" do
      context "when at least one of the given keys is contained in opts" do
        it "should not raise an error" do
          lambda{ Tester.require_one_of( {:obj=>'value1'}, :foo, :bar, :obj ) }.should_not raise_error(ArgumentError)          
        end
      end
      context "when none of the given keys are contained in opts" do
        it "should raise an error" do
          lambda{ Tester.require_one_of( {:obj=>'value1'}, :foo, :bar ) }.should raise_error(ArgumentError)          
        end
      end
    end
    
    describe "id_or_name_condition" do
      
      it "should return a hash" do
        Tester.id_or_name_condition('mymodel', 'string_value').should be_a Hash
      end

      it "should have a key for :where" do
        Tester.id_or_name_condition('mymodel', 'string_value').keys.should include(:where)
      end

      it "should have a key for :values" do
        Tester.id_or_name_condition('mymodel', 'string_value').keys.should include(:values)
      end

      context "when given a string value" do
        it "should include '(table).name like ?' in the where clause" do
          Tester.id_or_name_condition('mymodel', 'string_value')[:where].should =~ /mymodel\.name\s*like\s*\?/i
        end

        it "should include the given value in values, wrapped in wildcard markers" do
          Tester.id_or_name_condition('mymodel', 'string_value')[:values].should == '%string_value%'
        end

        context "and the value has an id in brackets on the end" do
          it "should strip the brackets and value" do
            Tester.id_or_name_condition('mymodel', 'string_value (1234)')[:values].should_not =~ /\([0-9]*\)/
          end
          
          it "should strip any space before the brackets" do
            Tester.id_or_name_condition('mymodel', 'string_value (1234)')[:values].should == "%string_value%"
          end
        end
      end
      context "when given an integer value" do
        
        it "should include '(table).id == ?' in the where clause" do
          Tester.id_or_name_condition('mymodel', '2')[:where].should =~ /mymodel\.id\s*=\s*\?/i
        end

        it "should include the given value in values, as an integer" do
          Tester.id_or_name_condition('mymodel', '2')[:values].should == 2
        end
      end
    end
    
    describe "parse_field_definition" do
      before(:each) do
        @params = { :param_1 => 'param_1 value' }
        @model_class = mock("model class")
        @model_class.stub!(:table_name).and_return( 'model_class_table_name' )
        @param_name = :param_name
        @definition = { :operator=>'=', :field_name=>'field_name'}
      end
      
      it "should return a Hash" do
        Tester.parse_field_definition( @params, @model_class, @param_name, @definition ).should be_a(Hash)
      end
      
      describe "returned Hash" do
        it "should have a key for :where" do
          Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where].should_not be_nil
        end
        it "should have a key for :values" do
          Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:values].should_not be_nil
        end
        
        context "when the given opts has a key matching the given param_name" do
          before(:each) do
            @param_name = :param_1
          end
          
          context "and the param value is not empty" do
          
            it "should add an element to the :where key" do
              Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where].size.should == 1
            end
          
            describe "where clause" do
              it "should be wrapped in brackets" do
                Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where][0].should =~ /^\s*\(.*\)\s*$/
              end
            
              describe "inside the brackets" do
                before(:each) do
                  @inside_the_brackets = Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where][0].gsub(/^\s*\((.*)\)\s*$/, '\1')
                end
              
                it "should start with the model_class's table name as a scope" do
                  @inside_the_brackets.should =~ /\s*model_class_table_name\..*/
                end
              
                context "When the definition has a :fieldname" do
                  before(:each) do
                    @definition[:field_name] = 'field_name'
                    @inside_the_brackets = Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where][0].gsub(/^\s*\((.*)\)\s*$/, '\1')
                  end
                    
                  it "should use the :fieldname" do
                    @inside_the_brackets.should =~ /\s*[^\.]+\.field_name.*/
                  end
                end
              
                context "When the definition has no :fieldname" do
                  before(:each) do
                    @definition[:field_name] = nil
                    @inside_the_brackets = Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where][0].gsub(/^\s*\((.*)\)\s*$/, '\1')
                  end
                    
                  it "should use the given param_name converted to a string as the field name" do
                    @inside_the_brackets.should =~ /\s*[^\.]+\.param_1.*/
                  end
                end
              
                context "When the definition has a :operator" do
                  before(:each) do
                    @definition[:operator] = 'my_operator'
                    @inside_the_brackets = Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where][0].gsub(/^\s*\((.*)\)\s*$/, '\1')
                  end
                    
                  it "should use the :operator" do
                    @inside_the_brackets.should =~ /.*\bmy_operator\b.*/
                  end
                end
              
                context "When the definition has no :operator" do
                  before(:each) do
                    @definition[:operator] = nil
                    @inside_the_brackets = Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where][0].gsub(/^\s*\((.*)\)\s*$/, '\1')
                  end
                    
                  it "should use = as the :operator" do
                    @inside_the_brackets.should =~ /[^=]+\s*=\s*[^=]+/
                  end
                end
              
                it "should end with (?)" do
                  @inside_the_brackets.should =~ /\(\?\)\s*$/
                end
              end
            end
          
            context "when the given :operator matches 'like'" do
              before(:each) do 
                @definition[:operator] = " LIKE "
              end
            
              it "should add the corresponding value, converted to a like condition, to the :values key" do
                Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:values].should == ['%param_1%value%']
              end
            end
          
            it "should add the corresponding value to the :values key" do
              Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:values].should == ['param_1 value']
            end
          end
          
          context "when the given value is empty" do
            before(:each) do
              @params = {:param_1=>'', :param_2=>'dave'}
              @param_name = :param_1
            end
            
            it "should not add the key to the where clause" do
              Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:where].should be_empty
            end
            
            it "should not add the value to the :values key" do
              Tester.parse_field_definition( @params, @model_class, @param_name, @definition )[:values].should_not include('')
            end
          end
        end
      end
    end
    
    describe "model_conditions" do
      before(:each) do
        @params = { :param_1 => 'param_1 value' }
        @model_class = mock("model class")
        @mock_parsed_field_def_1 = {:where=>['where 1'], :values=>['values 1']}
        @mock_parsed_field_def_2 = {:where=>['where 2'], :values=>['values 2']}
        Tester.stub!(:parse_field_definition).and_return( @mock_parsed_field_def_1, @mock_parsed_field_def_2 )
        @definitions = { :key=>'=', :field_name=>'field_name'}
      end
      
      it "should return a Hash" do
        Tester.model_conditions( @params, @model_class, @definitions ).should be_a(Hash)
      end
      
      describe "returned Hash" do
        it "should have a key for :where" do
          Tester.model_conditions( @params, @model_class, @definitions )[:where].should_not be_nil
        end
        it "should have a key for :values" do
          Tester.model_conditions( @params, @model_class, @definitions )[:values].should_not be_nil
        end
      end
      
      context "for each given field_def" do
        before(:each) do
          @definitions = { :field_name_1 => (@mock_definition_1={}), :field_name_2 => (@mock_definition_2={}) } 
        end
        
        it "should call parse_field_definition" do
          Tester.should_receive(:parse_field_definition).twice.and_return( @mock_parsed_field_def_1, @mock_parsed_field_def_2 )
          Tester.model_conditions( @params, @model_class, @definitions )
        end
        
        describe "parse_field_definition call params" do
          it "should pass the given opts" do
            Tester.should_receive(:parse_field_definition).with( @params, anything, anything, anything ).twice.and_return( @mock_parsed_field_def_1, @mock_parsed_field_def_2 )
            Tester.model_conditions( @params, @model_class, @definitions )
          end
          
          it "should pass the given model class" do
            Tester.should_receive(:parse_field_definition).with( anything, @model_class, anything, anything ).twice.and_return( @mock_parsed_field_def_1, @mock_parsed_field_def_2 )
            Tester.model_conditions( @params, @model_class, @definitions )
          end
          
          it "should pass each field_name" do
            Tester.should_receive(:parse_field_definition) do |args|
              args[2].should == :field_name_1
              @mock_parsed_field_def_1 
            end
            Tester.should_receive(:parse_field_definition) do |args|
              args[2].should == :field_name_2
              @mock_parsed_field_def_2
            end
            Tester.model_conditions( @params, @model_class, @definitions )
          end
          
          it "should pass the field_name's definition" do
            Tester.should_receive(:parse_field_definition) do |args|
              args[3].should == @mock_definition_1
              @mock_parsed_field_def_1 
            end
            Tester.should_receive(:parse_field_definition) do |args|
              args[3].should == @mock_definition_2
              @mock_parsed_field_def_2
            end
            Tester.model_conditions( @params, @model_class, @definitions )
          end
          
        end
        
        it "should add the :where key from the parsed field definition to the :where key of the return hash " do
          Tester.model_conditions( @params, @model_class, @definitions )[:where].should == ['where 1', 'where 2']
        end
        
        it "should add the :values key from the parsed field definition to the :values key of the return hash " do
          Tester.model_conditions( @params, @model_class, @definitions )[:values].should == ['values 1', 'values 2']
        end
      end
    end
    
    
    describe "params_to_conditions" do
      before(:each) do
        @mock_params = mock('params')
        @model_class_1 = "model class 1"
        @model_class_2 = "model class 2"
        @models = { @model_class_1 => 'model class def 1', @model_class_2 => 'model class def 2' }
        @mock_parsed_model_def_1 = {:where=>['where 1'], :values=>['values 1']}
        @mock_parsed_model_def_2 = {:where=>['where 2'], :values=>['values 2']}
        Tester.stub!(:model_conditions).and_return( @mock_parsed_model_def_1, @mock_parsed_model_def_2 )
      end
      
      context "when not given a :params key" do
        it "should raise an ArgumentError" do
          lambda{ Tester.params_to_conditions(:blart=>'flange', :models=>'models')  }.should raise_error(ArgumentError)
        end
      end
      context "when not given a :models key" do
        it "should raise an ArgumentError" do
          lambda{ Tester.params_to_conditions(:blart=>'flange', :params=>'params')  }.should raise_error(ArgumentError)
        end
      end
      
      context "for each given model" do
        before(:each) do
          
        end
        
        it "should call model_conditions" do
          Tester.should_receive(:model_conditions).twice.and_return( @mock_parsed_model_def_1, @mock_parsed_model_def_2 )
          Tester.params_to_conditions( :params=>@mock_params, :models=>@models )
        end
        
        describe "model_conditions_call_params" do
          it "should pass on the given :params" do
            Tester.should_receive(:model_conditions).with(@mock_params, anything, anything).twice.and_return( @mock_parsed_model_def_1, @mock_parsed_model_def_2 )
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )
          end
          
          it "should pass each model class" do
            Tester.should_receive(:model_conditions) do |args|
              args[1].should == 'model class 1'
              @mock_parsed_model_def_1 
            end
            Tester.should_receive(:model_conditions) do |args|
              args[1].should == 'model class 2'
              @mock_parsed_model_def_2
            end
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )
          end
          
          it "should pass the models field definitions" do
            Tester.should_receive(:model_conditions) do |args|
              args[2].should == 'model class def 1'
              @mock_parsed_model_def_1 
            end
            Tester.should_receive(:model_conditions) do |args|
              args[2].should == 'model class def 2'
              @mock_parsed_model_def_2
            end
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )
          end
        end
      end
      
      describe "returned value" do
        it "should be an array" do
          Tester.params_to_conditions( :params=>@mock_params, :models=>@models ).should be_a(Array)
        end
        
        describe "first element" do
          it "should be a string" do
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )[0].should be_a(String)
          end
          
          it "should have the :where keys from the parsed model definitions joined with AND " do
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )[0].should == "where 1 AND where 2"
          end
        end
        
        describe "subsequent elements" do
          it "should be the values from the parsed model definitions" do
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )[1].should == 'values 1'
            Tester.params_to_conditions( :params=>@mock_params, :models=>@models )[2].should == 'values 2'
          end
        end
      end
      
    end
  end
  
  describe "instance_methods" do
    it "should not raise an error" do
      lambda {
        @t.require_obj_or_id( {:key=>'val'}, :key )
      }.should_not raise_error
    end
  end
end