using System;
using Octokit.Internal;
using Xunit;

namespace Octokit.Tests
{
    public class SimpleJsonSerializerTests
    {
        public class TheSerializeMethod
        {
            [Fact]
            public void UsesRubyCasing()
            {
                var item = new Sample { Id = 42, FirstName = "Phil", IsSomething = true, Private = true };

                var json = new SimpleJsonSerializer().Serialize(item);

                Assert.Equal("{\"id\":42,\"first_name\":\"Phil\",\"is_something\":true,\"private\":true}", json);
            }

            [Fact]
            public void OmitsPropertiesWithNullValue()
            {
                var item = new
                {
                    Object = (object)null,
                    NullableInt = (int?)null,
                    NullableBool = (bool?)null
                };

                var json = new SimpleJsonSerializer().Serialize(item);

                Assert.Equal("{}", json);
            }

            [Fact]
            public void DoesNotOmitsNullablePropertiesWithAValue()
            {
                var item = new
                {
                    Object = new { Id = 42 },
                    NullableInt = (int?)1066,
                    NullableBool = (bool?)true
                };

                var json = new SimpleJsonSerializer().Serialize(item);

                Assert.Equal("{\"object\":{\"id\":42},\"nullable_int\":1066,\"nullable_bool\":true}", json);
            }

            [Fact]
            public void HandlesMixingNullAndNotNullData()
            {
                var item = new
                {
                    Int = 42,
                    Bool = true,
                    NullableInt = (int?)null,
                    NullableBool = (bool?)null
                };

                var json = new SimpleJsonSerializer().Serialize(item);

                Assert.Equal("{\"int\":42,\"bool\":true}", json);
            }


            [Fact]
            public void PerformsNewTagSerialization()
            {
                var tag = new NewTag()
                {
                    Message = "tag-message",
                    Tag = "tag-name",
                    Object = "tag-object",
                    Type = TaggedType.Tree,
                    Tagger = new Tagger
                    {
                        Name = "tagger-name",
                        Email = "tagger-email",
                        Date = new DateTime(2013, 09, 03, 13, 42, 52, DateTimeKind.Utc)
                    }
                };

                var json = new SimpleJsonSerializer().Serialize(tag);

                const string expectedResult = "{\"tag\":\"tag-name\"," + 
                                                "\"message\":\"tag-message\"," + 
                                                "\"object\":\"tag-object\"," + 
                                                "\"type\":\"tree\"," + 
                                                "\"tagger\":{" + 
                                                    "\"name\":\"tagger-name\"," + 
                                                    "\"email\":\"tagger-email\"," + 
                                                    "\"date\":\"2013-09-03T13:42:52Z\"" + 
                                                "}" + 
                                            "}"; 

                Assert.Equal(expectedResult, json);
            }
        }

        public class TheDeserializeMethod
        {
            [Fact]
            public void UnderstandsRubyCasing()
            {
                const string json = "{\"id\":42,\"first_name\":\"Phil\",\"is_something\":true,\"private\":true}";

                var sample = new SimpleJsonSerializer().Deserialize<Sample>(json);

                Assert.Equal(42, sample.Id);
                Assert.Equal("Phil", sample.FirstName);
                Assert.True(sample.IsSomething);
                Assert.True(sample.Private);
            }
        }

        public class Sample
        {
            public int Id { get; set; }
            public string FirstName { get; set; }
            public bool IsSomething { get; set; }
            public bool Private { get; set; }
        }
    }
}