using System;

using System.Net;

using Moq;

using NUnit.Framework;

using Rackspace.CloudFiles.Domain;

using Rackspace.CloudFiles.Domain.Request;

using Rackspace.CloudFiles.Domain.Request.Interfaces;





namespace Rackspace.CloudFiles.Unit.Tests.Domain.Request.GetAuthenticationSpecs

{

    [TestFixture]

    public class when_authenticating_against_cloud_files_and_user_credentials_are_null

    {

        [Test]

        [ExpectedException(typeof(ArgumentNullException))]

        public void should_throw_argument_null_exception()

        {

            new GetAuthentication(null);

        }

    }



    [TestFixture]

    public class when_authenticating_against_cloud_files_and_no_auth_url_provided

    {

        private GetAuthentication getAuthentication;

        private Mock<ICloudFilesRequest> _mockrequest;



        [SetUp]

        public void setup()

        {

            var userCredentials = new UserCredentials("username", "apikey");

            getAuthentication = new GetAuthentication(userCredentials);

            _mockrequest = new Mock<ICloudFilesRequest>();

        }



        [Test]

        public void should_use_US_auth_url()

        {

            Assert.That(getAuthentication.CreateUri().ToString(), Is.EqualTo(CloudFiles.Utils.Constants.US_AUTHURL));

        }



        [Test]

        public void should_have_a_http_head_method()

        {

            var webrequest = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(webrequest);

            getAuthentication.Apply(_mockrequest.Object);

            //this seems wrong as its not looking for HEAD

            _mockrequest.VerifySet(x => x.Method = "GET");

            

        }



        [Test]

        public void should_have_a_username_in_the_headers()

        {

            var webrequest = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(webrequest);

            getAuthentication.Apply(_mockrequest.Object);

            Assert.That(webrequest[CloudFiles.Utils.Constants.X_AUTH_USER], Is.EqualTo("username"));

        }



        [Test]

        public void should_have_api_key_in_the_headers()

        {

            var webrequest = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(webrequest);

            getAuthentication.Apply(_mockrequest.Object);

            Assert.That(webrequest[CloudFiles.Utils.Constants.X_AUTH_KEY], Is.EqualTo("apikey"));

        }

    }



    [TestFixture]

    public class when_authenticating_against_cloud_files_and_auth_url_provided

    {

        private GetAuthentication getAuthentication;

        private Mock<ICloudFilesRequest> _mockrequest;



        [SetUp]

        public void setup()

        {

            var userCredentials = new UserCredentials(new Uri("http://authurl"), "username", "apikey", "cloudversion", "cloudaccountname");

            getAuthentication = new GetAuthentication(userCredentials);

            _mockrequest = new Mock<ICloudFilesRequest>();

        }



        [Test]

        public void should_have_properly_formmated_auth_url()

        {

            Assert.That(getAuthentication.CreateUri().ToString(), Is.EqualTo("http://authurl//cloudversion/cloudaccountname/auth"));

        }



        [Test]

        public void should_have_a_http_head_method()

        {

            var webrequest = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(webrequest);

            getAuthentication.Apply(_mockrequest.Object);

            //this seems wrong as its not looking for HEAD

            _mockrequest.VerifySet(x => x.Method = "GET");

        }



        [Test]

        public void should_have_a_username_in_the_headers()

        {

            var webrequest = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(webrequest);

            getAuthentication.Apply(_mockrequest.Object);

            Assert.That(webrequest[CloudFiles.Utils.Constants.X_AUTH_USER], Is.EqualTo("username"));

        }



        [Test]

        public void should_have_api_key_in_the_headers()

        {

            var webrequest = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(webrequest);

            getAuthentication.Apply(_mockrequest.Object);

            Assert.That(webrequest[CloudFiles.Utils.Constants.X_AUTH_KEY], Is.EqualTo("apikey"));

        }

    }



    [TestFixture]

    public class when_authenticating_against_cloud_files_and_username_and_password_have_spaces_in_them

    {



        [Test]

        public void Should_replace_plus_sign_with_percent_20_on_account_name_username_and_password()

        {

            UserCredentials userCreds = new UserCredentials(new Uri("http://tempuri"), "user name", "pass word", "v 1", "account name");

            GetAuthentication getAuthentication = new GetAuthentication(userCreds);

            var _mockrequest = new Mock<ICloudFilesRequest>();

            var headers = new WebHeaderCollection();

            _mockrequest.SetupGet(x => x.Headers).Returns(headers);

            getAuthentication.Apply(_mockrequest.Object);

            Assert.That(getAuthentication.CreateUri().AbsoluteUri, Is.EqualTo("http://tempuri//v%201/account%20name/auth"));

            Assert.That(headers[CloudFiles.Utils.Constants.X_AUTH_USER], Is.EqualTo("user%20name"));

            Assert.That(headers[CloudFiles.Utils.Constants.X_AUTH_KEY], Is.EqualTo("pass%20word"));

        }

    }

}