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

module JsTestCore
  module Resources
    describe File do
      before do
        WebRoot.dispatch_specs
        stub_send_data
        stub(EventMachine).close_connection
      end
      
      describe "GET" do
        context "when If-Modified-Since header is == the File's mtime" do
          it "returns a 304 response with Content-Length: 0 and Last-Modified: File.mtime" do
            path = "#{public_path}/stylesheets/example.css"
            mock(connection).send_head(304, 'Content-Type' => "text/css", 'Content-Length' => 0, 'Last-Modified' => ::File.mtime(path).rfc822)
            connection.receive_data("GET /stylesheets/example.css HTTP/1.1\r\nHost: _\r\nIf-Modified-Since: #{::File.mtime(path).rfc822}\r\n\r\n")

            path_2 = "#{public_path}/javascripts/foo.js"
            mock(connection).send_head(304, 'Content-Type' => "text/javascript", 'Content-Length' => 0, 'Last-Modified' => ::File.mtime(path_2).rfc822)
            connection.receive_data("GET /javascripts/foo.js HTTP/1.1\r\nHost: _\r\nIf-Modified-Since: #{::File.mtime(path_2).rfc822}\r\n\r\n")
          end
        end

        context "when If-Modified-Since header is > the File's mtime" do
          it "returns a 304 response with Content-Length: 0 and Last-Modified: File.mtime" do
            path = "#{public_path}/stylesheets/example.css"
            mock(connection).send_head(304, 'Content-Type' => "text/css", 'Content-Length' => 0, 'Last-Modified' => ::File.mtime(path).rfc822)
            connection.receive_data("GET /stylesheets/example.css HTTP/1.1\r\nHost: _\r\nIf-Modified-Since: #{(::File.mtime(path) + 10).rfc822}\r\n\r\n")

            path_2 = "#{public_path}/javascripts/foo.js"
            mock(connection).send_head(304, 'Content-Type' => "text/javascript", 'Content-Length' => 0, 'Last-Modified' => ::File.mtime(path_2).rfc822)
            connection.receive_data("GET /javascripts/foo.js HTTP/1.1\r\nHost: _\r\nIf-Modified-Since: #{(::File.mtime(path_2) + 10).rfc822}\r\n\r\n")
          end
        end

        context "when If-Modified-Since header is < the File's mtime" do
          it "returns a 200 response with the file's contents" do
            path = "#{public_path}/stylesheets/example.css"
            mock(connection).send_head(200, 'Content-Type' => "text/css", 'Content-Length' => ::File.size(path), 'Last-Modified' => ::File.mtime(path).rfc822)
            mock(connection).send_data(::File.read(path))
            connection.receive_data("GET /stylesheets/example.css HTTP/1.1\r\nHost: _\r\nIf-Modified-Since: #{(::File.mtime(path) - 10).rfc822}\r\n\r\n")

            path_2 = "#{public_path}/javascripts/foo.js"
            mock(connection).send_head(200, 'Content-Type' => "text/javascript", 'Content-Length' => ::File.size(path_2), 'Last-Modified' => ::File.mtime(path_2).rfc822)
            mock(connection).send_data(::File.read(path_2))
            connection.receive_data("GET /javascripts/foo.js HTTP/1.1\r\nHost: _\r\nIf-Modified-Since: #{(::File.mtime(path_2) - 10).rfc822}\r\n\r\n")
          end
        end
        
        describe "GET /stylesheets/example.css" do
          it "returns a page with a of files in the directory" do
            path = "#{public_path}/stylesheets/example.css"
            mock(connection).send_head(200, 'Content-Type' => "text/css", 'Content-Length' => ::File.size(path), 'Last-Modified' => ::File.mtime(path).rfc822)
            mock(connection).send_data(::File.read(path))

            connection.receive_data("GET /stylesheets/example.css HTTP/1.1\r\nHost: _\r\n\r\n")
          end
        end

        describe "GET /implementations/foo.js" do
          it "returns a page with a of files in the directory" do
            path = "#{public_path}/javascripts/foo.js"
            mock(connection).send_head(200, 'Content-Type' => "text/javascript", 'Content-Length' => ::File.size(path), 'Last-Modified' => ::File.mtime(path).rfc822)
            mock(connection).send_data(::File.read(path))

            connection.receive_data("GET /implementations/foo.js HTTP/1.1\r\nHost: _\r\n\r\n")
          end
        end

        describe "GET /javascripts/subdir/bar.js - Subdirectory" do
          it "returns a page with a of files in the directory" do
            path = "#{public_path}/javascripts/subdir/bar.js"
            mock(connection).send_head(200, 'Content-Type' => "text/javascript", 'Content-Length' => ::File.size(path), 'Last-Modified' => ::File.mtime(path).rfc822)
            mock(connection).send_data(::File.read(path))

            connection.receive_data("GET /javascripts/subdir/bar.js HTTP/1.1\r\nHost: _\r\n\r\n")
          end
        end

        describe "GET /implementations/large_file.js - Large files" do
          it "returns a page in 1024 byte chunks" do
            chunk_count = 0
            path = "#{public_path}/javascripts/large_file.js"
            mock(connection).send_head(200, 'Content-Type' => "text/javascript", 'Content-Length' => ::File.size(path), 'Last-Modified' => ::File.mtime(path).rfc822)
            ::File.open(path) do |file|
              while !file.eof?
                chunk_count += 1
                mock(connection).send_data(file.read(1024))
              end
            end

            chunk_count.should == (::File.size(path) / 1024.0).ceil.to_i
            connection.receive_data("GET /javascripts/large_file.js HTTP/1.1\r\nHost: _\r\n\r\n")
          end
        end
      end


      describe "==" do
        attr_reader :file, :absolute_path, :relative_path

        before do
          @absolute_path = "#{implementation_root_path}/foo.js"
          @relative_path = "/implementations/foo.js"
          @file = Resources::File.new(
            :connection => connection,
            :absolute_path => absolute_path,
            :relative_path => relative_path
          )
        end

        it "returns true when passed a file with the same absolute and relative paths" do
          file.should == Resources::File.new(:absolute_path => absolute_path, :relative_path => relative_path)
        end

        it "returns false when passed a file with a different absolute or relative path" do
          file.should_not == Resources::File.new(:absolute_path => absolute_path, :relative_path => "bogus")
          file.should_not == Resources::File.new(:absolute_path => "bogus", :relative_path => relative_path)
        end

        it "when passed a Dir, returns false because File is not a Dir" do
          file.should_not == Resources::Dir.new(:absolute_path => absolute_path, :relative_path => relative_path)
        end
      end
    end
  end
end