require 'router/spec_helper'

describe "AliasRouter" do  
  before :all do
    class SomeController
    end
  end
  
  after :all do
    remove_constants %w(SomeController)
  end
  
  before :each do
    @router = Rad::AliasRouter.new
  end
    
  it "encode / decode" do
    @router.add '/login', class: SomeController, method: :login

    @router.encode(SomeController, :login, {}).should == ["/login", {}]
    @router.encode_method('login_path').should == [SomeController, :login] 
    @router.decode("/login", {}).should == [SomeController, :login, {}]
  end
  
  it "should differentiate aliases with similar path elements" do
    @router.add '/login', class: SomeController, method: :login
    @router.add '/login/twitter', class: SomeController, method: :twitter
    
    @router.encode(SomeController, :login, {}).should == ["/login", {}]
    @router.decode("/login", {}).should == [SomeController, :login, {}]
    
    @router.encode(SomeController, :twitter, {}).should == ["/login/twitter", {}]
    @router.decode("/login/twitter", {}).should == [SomeController, :twitter, {}]
  end
  
  it "input validation" do
    lambda{@router.add :login, class: SomeController, method: :login}.should raise_error(/\//)
    lambda{@router.add '/login', class: SomeController}.should raise_error(/method/)
    lambda{@router.add '/login', method: :login}.should raise_error(/class/)    
    lambda{@router.add '/login', class: SomeController, method: :login, invalid: 'value'}.should raise_error(/unknown/)
    lambda{@router.add '/login', class: SomeController, method: :login, url_root: 'users'}.should raise_error(/\//)
    lambda{@router.add '/login', class: SomeController, method: :login, prefix: []}.should raise_error(/empty/)
  end
  
  it "should use :url_root" do
    @router.add '/login', class: SomeController, method: :login, url_root: '/space'
    
    @router.encode(SomeController, :login, {}).should == ["/space/login", {}]
    @router.decode("/space/login", {}).should == [SomeController, :login, {}]
  end  
  
  it "should return nil if route unknown" do
    @router.encode(SomeController, :unknown, {}).should be_nil
    @router.encode_method(:unknown_path).should be_nil
    @router.decode("/login", {}).should be_nil
  end
  
  it 'root alias' do
    @router.add '/', class: SomeController, method: :home

    @router.encode(SomeController, :home, {}).should == ["/", {}]
    @router.decode("/", {}).should == [SomeController, :home, {}]
    
    # should not support url_root
    -> {@router.add '/', class: SomeController, method: :home, url_root: '/space'}.should raise_error(/url_root/)
  end
  
  describe "prefixes" do
    it "basics" do
      @router.add '/statistics', class: SomeController, method: :statistics, prefix: [:l, :space]
    
      @router.encode(SomeController, :statistics, l: 'en', space: 'personal').should == ["/l/en/space/personal/statistics", {}]
      @router.encode_method("statistics_path").should == [SomeController, :statistics]
      @router.decode("/l/en/space/personal/statistics", {}).should == [SomeController, :statistics, {l: 'en', space: 'personal'}]
    end
    
    it "should also works with path with slashes" do
      @router.add '/blogs/show', class: SomeController, method: :show, prefix: [:l, :space]
    
      @router.encode(SomeController, :show, l: 'en', space: 'personal').should == ["/l/en/space/personal/blogs/show", {}]
      @router.decode("/l/en/space/personal/blogs/show", {}).should == [SomeController, :show, {l: 'en', space: 'personal'}]
    end
    
    it "should raise error if prefixes not provided" do
      @router.add '/login', class: SomeController, method: :login, prefix: [:l]
      
      lambda{@router.encode(SomeController, :login, {})}.should raise_error(/prefix/)
      lambda{@router.decode('/login', {})}.should raise_error(/prefix/)
    end
    
    it "should works with :url_root" do
      @router.add '/blogs/show', class: SomeController, method: :show, prefix: [:l], url_root: '/users'
    
      @router.encode(SomeController, :show, l: 'en').should == ["/users/l/en/blogs/show", {}]
      @router.decode("/users/l/en/blogs/show", {}).should == [SomeController, :show, {l: 'en'}]
    end
  end
end