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

describe MediaWiki::Gateway do
  
  def media_wiki_url
    "#{LonelyPlanet::OnRails.environment.services[:atlas_mediawiki]}"
  end
  
  before do
    @gateway = MediaWiki::Gateway.new({:url => media_wiki_url, :username => 'atlasmw', :password => 'wombat'})
    $fake_media_wiki.reset
  end

  describe '.wiki_to_uri' do

    it "should underscore spaces" do
      MediaWiki.wiki_to_uri('getting there').should == 'getting_there'
    end

    it "should escape ampersands" do
      MediaWiki.wiki_to_uri('getting there & away').should == 'getting_there_%26_away'
    end

    it "should escape UTF-8" do
      MediaWiki.wiki_to_uri('Phở').should == 'Ph%E1%BB%9F'      
    end

    it "should escape each path component but leave slashes untouched" do
      MediaWiki.wiki_to_uri('Phở/B&r/B z').should == 'Ph%E1%BB%9F/B%26r/B_z'
    end

    it "should pass through nil" do
      MediaWiki.wiki_to_uri(nil).should == nil
    end
    
  end
  
  describe '#login' do
  
    describe "with a valid username & password" do
  
      before do
        @gateway.login('atlasmw', 'wombat')
      end
  
      it "should login successfully" do
        $fake_media_wiki.logged_in('atlasmw').should == true
      end
  
    end
  
    describe "with an non-existent username" do
  
      it "should raise an error" do
        lambda do
          @gateway.login('bogususer', 'sekrit')
        end.should raise_error(StandardError)
      end
  
    end
  
    describe "with an incorrect password" do
  
      it "should raise an error" do
        lambda do
          @gateway.login('atlasmw', 'sekrit')
        end.should raise_error(StandardError)
      end
  
    end
  
  end

  describe "#get_token" do
  
    describe "when not logged in" do
  
      describe "requesting an edit token" do
  
        before do
          @token = @gateway.get_token('edit', 'Main Page')
        end
    
        it "should return a blank token" do
          @token.should_not == nil
          @token.should == "+\\"
        end
        
      end
  
      describe "requesting an import token" do
    
        it "should raise an error" do
          lambda do
            @gateway.get_token('import', 'Main Page')
          end.should raise_error(StandardError)
        end
        
      end
  
    end
  
    describe "when logged in as admin user" do
  
      before do
        @gateway.login('atlasmw', 'wombat')
      end
  
      describe "requesting an edit token for a single page" do
  
        before do
          @token = @gateway.get_token('edit', 'Main Page')
        end
    
        it "should return a token" do
          @token.should_not == nil
          @token.should_not == "+\\"
        end
        
      end
  
      describe "requesting an edit token for multiple pages" do
  
        before do
          @token = @gateway.get_token('edit', "Main Page|Another Page")
        end
    
        it "should return a token" do
          @token.should_not == nil
          @token.should_not == "+\\"
        end
        
      end
  
      describe "requesting an import token" do
  
        before do
          @token = @gateway.get_token('import', 'Main Page')
        end
    
        it "should return a token" do
          @token.should_not == nil
          @token.should_not == "+\\"
        end
        
      end
  
    end
  
  end

  describe "#get" do

    describe "for an existing wiki page" do

      before do
        $fake_media_wiki.add_page("page/title", "Wiki-text content")
      end

      it "returns raw page content" do
        @gateway.get("page/title").should == "Wiki-text content"
      end

    end

    describe "for a missing wiki page" do

      it "returns nil" do
        @gateway.get("page/missing").should be_nil
      end

    end

    describe "for root (/)" do

      it "returns nil" do
        @gateway.get("").should be_nil
      end

    end

  end

  describe "#render" do
    
    describe "for an existing wiki page" do
  
      before do
        @pages = @gateway.render('Main Page')
      end

      it "should return the page content" do
        expected = "Sample <B>HTML</B> content"
        @pages.to_s.should == expected
      end
    end
    
    describe "for a missing wiki page" do
  
      before do
        @pages = @gateway.render('Invalidpage')
      end

      it "should return nil" do
        @pages.should == nil
      end
  
    end

  end
  
  describe "#semantic_query" do
    
    before do
      @response = @gateway.semantic_query('[[place-id::123]]', ['mainlabel=Page'])
    end

    it "should return an HTML string" do
      @response.should == "Sample <B>HTML</B> content"
    end
    
  end
  
  describe "#create" do
  
    before do
      @gateway.login('atlasmw', 'wombat')
    end

    describe "when creating a new page" do
    
      before do
        @page = @gateway.create("A New Page", "Some content")
      end
      
      it "should create the page" do
        expected = <<-XML
          <api>
            <edit new='' result='Success' pageid='5' title='A New Page' oldrevid='0' newrevid='5'/>
          </api>
        XML
        Hash.from_xml(@page.to_s).should == Hash.from_xml(expected)
      end
      
    end
    
    describe "when creating a page that already exists" do
      
      before do
        @existing_page = $fake_media_wiki.add_page("The Page", "Some content")
      end
      
      describe "and the 'overwrite' option is set" do
      
        before do
          @new_page = @gateway.create("The Page", "Some new content", :summary => "The summary", :overwrite => true)
        end
        
        it "should overwrite the existing page" do
          expected = <<-XML
            <api>
              <edit result='Success' pageid='#{@existing_page[:pageid] + 1}' title='The Page' oldrevid='#{@existing_page[:pageid]}' newrevid='#{@existing_page[:pageid] + 1}'/>
            </api>
          XML
          Hash.from_xml(@new_page.to_s).should == Hash.from_xml(expected)
        end
      
      end
  
      describe "and the 'overwrite' option is not set" do
  
        it "should raise an error" do
          lambda do
            @gateway.create("The Page", "Some new content")
          end.should raise_error(StandardError)
        end
        
      end
        
    end
  
  end

  describe "#delete" do

    describe "when logged in as admin" do

      describe "and the page exists" do
        def delete_response
         <<-XML
            <api>
              <delete title='Deletable Page' reason='Default reason'/>
            </api>
         XML
        end
      
        before do
          @gateway.login("atlasmw", "wombat")
          @gateway.create("Deletable Page", "Some content")
          @page = @gateway.delete("Deletable Page")
        end

        it "should delete the page" do
          Hash.from_xml(@page.to_s) == Hash.from_xml(delete_response)
        end  
      end
      
      describe "and the page does not exist" do
    
        before do
          @gateway.login("atlasmw", "wombat")
        end
      
        it "should raise an error" do
          lambda do
            @gateway.delete("Missing Page")
          end.should raise_error(StandardError)
        end
      end
    end

    describe "when not logged in" do

      before do
        @gateway.create("Deletable Page", "Some content")
      end
      
      it "should raise an error" do
        lambda do
          @gateway.delete("Deletable Page")
        end.should raise_error(StandardError)
      end

    end
    
  end

  describe "#import" do

    def import_file
      File.dirname(__FILE__) + "/import-test-data.xml"
    end

    describe "when not logged in" do
      
      it "should raise an error" do
        lambda do
          @gateway.import(import_file)
        end.should raise_error(StandardError)
      end

    end

    describe "when logged in as admin" do
    
      def import_response
        <<-XML
          <api>
            <import>
              <page title='Main Page' ns='0' revisions='0'/>
              <page title='Template:Header' ns='10' revisions='1'/>
            </import>
          </api>
        XML
      end
      
      before do
        @gateway.login("atlasmw", "wombat")
        @page = @gateway.import(import_file)
      end
      
      it "should import content" do
        Hash.from_xml(@page.to_s) == Hash.from_xml(import_response)
      end
      
    end
    
  end
  
  describe "#export" do
    
    def export_data
      page = $fake_media_wiki.page_by_title("Main Page")
      <<-XML
        <mediawiki>
          <page>
            <title>#{page[:title]}</title>
            <id>#{page[:pageid]}</id>
            <revision>
              <id>#{page[:pageid]}</id>
              <text>#{page[:content]}</text>
            </revision>
          </page>
        </mediawiki>
      XML
    end
    
    before do
      @page = @gateway.export("Main Page")
    end
    
    it "should return export data for the page" do
      Hash.from_xml(@page.to_s).should == Hash.from_xml(export_data)
    end
  
  end

  describe "#list" do
  
    before do
      $fake_media_wiki.reset
    end
    
    describe "with an empty key" do
      
      before do
        @list = @gateway.list("")
      end

      it "should list all pages" do
        @list.sort.should == [ "Book:Italy", "Level/Level/Index", "Main 2", "Main Page" ]
      end
      
    end

    describe "with a namespace as the key" do
      
      before do
        @list = @gateway.list("Book:")
      end

      it "should list all pages in the namespace" do
        @list.should == [ "Book:Italy" ]
      end
      
    end

    describe "with a partial title as the key" do
      
      before do
        @list = @gateway.list("Main")
      end

      it "should list all pages in the main namespace that start with key" do
        @list.sort.should == [ "Main 2", "Main Page" ]
      end
      
    end

  end

  describe "#search" do
  
    before do
      $fake_media_wiki.reset
      @gateway.create("Search Test", "Foo KEY Blah")
      @gateway.create("Search Test 2", "Zomp KEY Zorg")
      @gateway.create("Book:Search Test", "Bar KEY Baz")
      @gateway.create("Sandbox:Search Test", "Evil KEY Evil")
    end
    
    describe "with an empty key" do
      
      it "should raise an error" do
        lambda do
          @gateway.search("")
        end.should raise_error(StandardError)
      end
   
    end

    describe "with a valid key and no namespaces" do
      
      before do
        @search = @gateway.search("KEY")
      end

      it "should list all matching pages in the main namespace" do
        @search.should == [ "Search Test", "Search Test 2" ]
      end
      
    end

    describe "with a valid key and a namespace string" do
      
      before do
        @search = @gateway.search("KEY", "Book")
      end

      it "should list all matching pages in the specified namespaces" do
        @search.should == [ "Book:Search Test" ]
      end
      
    end

    describe "with a valid key and a namespace array" do
      
      before do
        @search = @gateway.search("KEY", ["Book", "Sandbox"])
      end

      it "should list all matching pages in the specified namespaces" do
        @search.should == [ "Sandbox:Search Test", "Book:Search Test" ]
      end
      
    end

  end
   
  describe "#namespaces_by_prefix" do
    
    before do
      $fake_media_wiki.reset
      @namespaces = @gateway.namespaces_by_prefix
    end

    it "should list all namespaces" do
      @namespaces.should == { "" => 0, "Book" => 100, "Sandbox" => 200}
    end

  end

  describe "#extensions" do
    
    before do
      $fake_media_wiki.reset
      @extensions = @gateway.extensions
    end

    it "should list all namespaces" do
      @extensions.should == { "FooExtension" => "r1", "BarExtension" => "r2" }
    end

  end
end