require "#{File.expand_path(File.dirname(__FILE__))}/helper"

describe "Flash" do
  with_environment :development
  
  class MockFlashContext < Crystal::MockTemplateContext
    include Crystal::FlashHelper, Crystal::ControllerUrlHelper, Crystal::ViewUrlHelper
    
    def url_for *args;
    end
  end
  
  class FlashTestRenderCaller < Crystal::Processor
    def call
      context = MockFlashContext.new
      block = workspace.check_flash.request
      block.call context if block
      workspace.request_done = true
      
      next_processor.call
    end
  end
  
  class FlashTestHelper < Crystal::Processor
    def call
      block = workspace.check_flash.before_request
      block.call workspace if block
      workspace.before_request_done = true
    
      next_processor.call
      
      block = workspace.check_flash.after_request
      block.call workspace if block
      workspace.after_request_done = true    
    end
  end
    
  before :all do    
    crystal.after :environment do      
      crystal.conveyors.web do |web|
        web.use Crystal::Processors::PrepareParams
        web.use FlashTestHelper
        web.use Crystal::Processors::PrepareFlash
        web.use FlashTestRenderCaller
      end
    end    
  end
  
  def check_flash opt            
    workspace = nil 
    result = Crystal::HTTPAdapter.mock_call({}, :check_flash => opt.to_openobject) do |&block|
      block.call
      workspace = crystal[:workspace]
    end
    
    workspace.before_request_done.should be_true
    workspace.request_done.should be_true
    workspace.after_request_done.should be_true    
    workspace
  end
  
  it "flash should be extracted from session if there's any" do
    check_flash(
      :before_request => lambda{|workspace|        
        workspace.params.format = 'html'
        workspace.request.session['flash'] = {'info' => 'Ok'}.to_json
      },
      :request => lambda{|context|
        context.flash.info.should == "Ok"
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should be_nil
      }
    )
    
    check_flash(
      :before_request => lambda{|workspace|
        workspace.params.format = 'html'
      },
      :request => lambda{|context|
        context.flash.info.should be_nil
      }
    )
  end
  
  it "flash should be saved for next request in session" do
    check_flash(
      :before_request => lambda{|workspace|
        workspace.params.format = 'html'
      },
      :request => lambda{|context|
        context.flash.info = "Ok"
        context.flash.info.should be_nil
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should == {'info' => 'Ok'}.to_json
      }
    )
  end
  
  it "flash with redirect should be saved for next request in session" do
    check_flash(
      :before_request => lambda{|workspace|
        workspace.params.format = 'html'
      },
      :request => lambda{|context|
        context.flash.info = "Ok"
        context.redirect_to '/'
        context.flash.info.should be_nil
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should == {'info' => 'Ok'}.to_json
      }
    )
  end
  
  it "AJAX (:js format) flash should be displayed in the same request" do
    check_flash(
      :before_request => lambda{|workspace|
        workspace.params.format = 'js'
      },    
      :request => lambda{|context|
        context.flash.info = "Ok"
        context.flash.info.should == "Ok"
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should be_nil
      }
    )
  end
  
  it "flash with AJAX redirect (:js format) should be saved for next request in session" do
    check_flash(
      :before_request => lambda{|workspace|
        workspace.params.format = 'js'
      },      
      :request => lambda{|context|
        context.flash.info = "Ok"
        context.flash.info.should == "Ok"
        context.redirect_to '/'
        context.flash.info.should be_nil
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should == {'info' => 'Ok'}.to_json
      }
    )
  end
  
  it "multiple messages with non-AJAX request" do
    check_flash(
      :before_request => lambda{|workspace|
        workspace.request.session['flash'] = {'info' => 'Ok'}.to_json
      },
      :request => lambda{|context|
        context.flash.error = "Error"
        context.flash.error.should be_nil
        
        context.flash.info.should == 'Ok'
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should == {'error' => 'Error'}.to_json
      }
    )
  end
  
  it "multiple messages with AJAX request" do
    check_flash(
      :before_request => lambda{|workspace|
        workspace.params.format = 'js'
        workspace.request.session['flash'] = {'info' => 'Ok'}.to_json                
      },
      :request => lambda{|context|
        context.flash.error = "Error"
        context.flash.error.should == "Error"
        
        context.flash.info.should == 'Ok'
      },
      :after_request => lambda{|workspace|
        workspace.request.session['flash'].should be_nil
      }
    )
  end
  
end