require 'spec_helper' 

describe ActiveAdmin::FormBuilder do

  setup_arbre_context!

  # Setup an ActionView::Base object which can be used for
  # generating the form for.
  let(:helpers) do 
    view = action_view
    def view.posts_path
      "/posts"
    end

    def view.protect_against_forgery?
      false
    end

    def view.url_for(*args)
      if args.first == {:action => "index"}
        posts_path
      else
        super
      end
    end

    view
  end

  def build_form(options = {}, &block)
    options.merge!({:url => posts_path})
    active_admin_form_for Post.new, options, &block
  end

  context "in general" do
    let :body do
      build_form do |f|
        f.inputs do
          f.input :title
          f.input :body
        end
        f.buttons do
          f.commit_button "Submit Me"
          f.commit_button "Another Button"
        end
      end
    end

    it "should generate a text input" do
      body.should have_tag("input", :attributes => { :type => "text",
                                                     :name => "post[title]" })
    end
    it "should generate a textarea" do
      body.should have_tag("textarea", :attributes => { :name => "post[body]" })
    end
    it "should only generate the form once" do
      body.scan(/Title/).size.should == 1
    end
    it "should generate buttons" do
      body.should have_tag("input", :attributes => {  :type => "submit",
                                                          :value => "Submit Me" })
      body.should have_tag("input", :attributes => {  :type => "submit",
                                                          :value => "Another Button" })
    end
  end

  context "when polymorphic relationship" do
    it "should raise error" do
      lambda {
        comment = ActiveAdmin::Comment.new
        active_admin_form_for comment, :url => "admins/comments" do |f|
          f.inputs :resource
        end
      }.should raise_error(Formtastic::PolymorphicInputWithoutCollectionError)
    end
  end

  describe "passing in options" do
    let :body do
      build_form :html => { :multipart => true } do |f|
        f.inputs :title
        f.buttons
      end
    end
    it "should pass the options on to the form" do
      body.should have_tag("form", :attributes => { :enctype => "multipart/form-data" })
    end
  end

  context "with buttons" do
    it "should generate the form once" do
      body = build_form do |f|
        f.inputs do
          f.input :title
        end
        f.buttons
      end
      body.scan(/id=\"post_title\"/).size.should == 1
    end
    it "should generate one button and a cancel link" do
      body = build_form do |f|
        f.buttons
      end
      body.scan(/type=\"submit\"/).size.should == 1
      body.scan(/class=\"cancel\"/).size.should == 1
    end
    it "should generate multiple buttons" do
      body = build_form do |f|
        f.buttons do
          f.commit_button "Create & Continue"
          f.commit_button "Create & Edit"
        end
      end
      body.scan(/type=\"submit\"/).size.should == 2
      body.scan(/class=\"cancel\"/).size.should == 0
    end

  end

  context "without passing a block to inputs" do
    let :body do
      build_form do |f|
        f.inputs :title, :body
      end
    end
    it "should have a title input" do
      body.should have_tag("input", :attributes => { :type => "text",
                                                          :name => "post[title]" })
    end
    it "should have a body textarea" do
      body.should have_tag("textarea", :attributes => { :name => "post[body]" })
    end
  end

  context "with semantic fields for" do
    let :body do
      build_form do |f|
        f.inputs do
          f.input :title
          f.input :body
        end
        f.instance_eval do
          @object.author = User.new
        end
        f.semantic_fields_for :author do |author|
          author.inputs :first_name, :last_name
        end
      end
    end
    it "should generate a nested text input once" do
      body.scan("post_author_attributes_first_name_input").size.should == 1
    end
  end

  context "with collection inputs" do
    before do
      User.create :first_name => "John", :last_name => "Doe"
      User.create :first_name => "Jane", :last_name => "Doe"
    end

    describe "as select" do
      let :body do
        build_form do |f|
          f.input :author
        end
      end
      it "should create 2 options" do
        body.scan(/\<option/).size.should == 3
      end
    end

    describe "as radio buttons" do
      let :body do
        build_form do |f|
          f.input :author, :as => :radio
        end
      end
      it "should create 2 radio buttons" do
        body.scan(/type=\"radio\"/).size.should == 2
      end
    end
  end

  context "with inputs 'for'" do
    let :body do
      build_form do |f|
        f.inputs do
          f.input :title
          f.input :body
        end
        f.instance_eval do
          @object.author = User.new
        end
        f.inputs :name => 'Author', :for => :author do |author|
          author.inputs :first_name, :last_name
        end
      end
    end
    it "should generate a nested text input once" do
      body.scan("post_author_attributes_first_name_input").size.should == 1
    end
    it "should add an author first name field" do
      body.should have_tag("input", :attributes => { :name => "post[author_attributes][first_name]"})
    end
  end

  context "with wrapper html" do
    it "should set a class" do
      body = build_form do |f|
        f.input :title, :wrapper_html => { :class => "important" }
      end
      body.should have_tag("li", :attributes => {:class => "important string input optional stringish"})
    end
  end


  { 
    "input :title, :as => :string"        => /id\=\"post_title\"/,
    "input :title, :as => :text"          => /id\=\"post_title\"/,
    "input :created_at, :as => :time"     => /id\=\"post_created_at_2i\"/,
    "input :created_at, :as => :datetime" => /id\=\"post_created_at_2i\"/,
    "input :created_at, :as => :date"     => /id\=\"post_created_at_2i\"/,
  }.each do |source, regex|
   it "should properly buffer #{source}" do
     body = build_form do |f|
       f.inputs do
         f.instance_eval(source)
         f.instance_eval(source)
       end
     end
     body.scan(regex).size.should == 2
   end
  end

  describe "datepicker input" do
    let :body do
      build_form do |f|
        f.inputs do
          f.input :created_at, :as => :datepicker
        end
      end
    end
    it "should generate a text input with the class of datepicker" do
      body.should have_tag("input", :attributes => {  :type => "text",
                                                          :class => "datepicker",
                                                          :name => "post[created_at]" })
    end
  end

end