using System;
using System.Xml;
using System.Xml.Linq;
using Xunit;
using USPS.ApiCalls;
using USPS.Configuration;
using USPS.Parsers;
using Landmark.OLA.Models.Addresses;
using Landmark.OLA.Models.Addresses.Enums;

namespace USPS.Tests
{
    public class AddressValidationTest
    {
        private readonly IResponseParser<Address> AddressParser;


        public AddressValidationTest()
        {
            AddressParser = new AddressValidationResponseParser();
        }

        private readonly Address address = new Address()
        {
            Address1 = "109 N Hancock St",
            Address2 = "Apt 2",
            City = "Madison",
            State = StateOption.WI,
            PostalCode = "53703",
            PostalCodeExt = "2466",
            Country = CountryOption.UnitedStates
        };

        [Fact]
        public void ErrorResponseParse()
        {
            XmlDocument doc = new XmlDocument();
            doc.Load("ExampleXML" + System.IO.Path.DirectorySeparatorChar + "USPSAddressError.xml");

            XDocument response;

            using (XmlNodeReader reader = new XmlNodeReader(doc))
            {
                response = XDocument.Load(reader);
            }

            Exception ex = Assert.Throws<FormatException>(() => AddressParser.Parse(response.Root));

            Assert.Equal("Attempt to parse address that is in error.", ex.Message);
        }

        [Fact]
        public void SuccessResponseParse()
        {
            XmlDocument doc = new XmlDocument();
            doc.Load("ExampleXML" + System.IO.Path.DirectorySeparatorChar + "USPSAddressSuccess.xml");

            XDocument response;

            using (XmlNodeReader reader = new XmlNodeReader(doc))
            {
                response = XDocument.Load(reader);
            }

            var parsedAddress = AddressParser.Parse(response.Root);

            Assert.Equal("MADISON", parsedAddress.City);
        }

        [Fact]
        public void AddressValidationBuild()
        {
            UspsSettings settings = new UspsSettings();
            settings.Username = "TestUser";
            settings.EndpointUrl = "http://production.shippingapis.com/ShippingAPI?";
            AddressValidationRequestBuilder api = new AddressValidationRequestBuilder(settings, address);
            string expectedURI = "http://production.shippingapis.com/ShippingAPI?API=Verify&XML=%3cAddressValidateRequest+USERID%3d%22TestUser%22%3e%3cAddress%3e%3cAddress1%3eApt+2%3c%2fAddress1%3e%3cAddress2%3e109+N+Hancock+St%3c%2fAddress2%3e%3cCity%3eMadison%3c%2fCity%3e%3cState%3eWI%3c%2fState%3e%3cZip5%3e53703%3c%2fZip5%3e%3cZip4+%2f%3e%3c%2fAddress%3e%3c%2fAddressValidateRequest%3e";
            Assert.Equal(expectedURI, api.BuildGET());
        }

    }
}