using System;
using System.Collections.Generic;
using System.Text.Json;
using Microsoft.Extensions.DependencyInjection;
using Newtonsoft.Json;
using Shouldly;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Json.Newtonsoft;
using Volo.Abp.Json.SystemTextJson;
using Xunit;
using JsonSerializer = Newtonsoft.Json.JsonSerializer;

namespace Volo.Abp.Json
{
    public class AbpHybridJsonSerializer_Tests : AbpJsonTestBase
    {
        private readonly IJsonSerializer _jsonSerializer;

        public AbpHybridJsonSerializer_Tests()
        {
            _jsonSerializer = GetRequiredService<IJsonSerializer>();
        }

        protected override void AfterAddApplication(IServiceCollection services)
        {
            services.Configure<AbpSystemTextJsonSerializerOptions>(options =>
            {
                options.UnsupportedTypes.Add<MyClass1>();

                options.JsonSerializerOptions.Converters.Add(new SystemTextJsonConverter());
            });

            services.Configure<AbpNewtonsoftJsonSerializerOptions>(options =>
            {
                options.Converters.Add<NewtonsoftJsonConverter>();
            });
        }

        [Fact]
        public void NewtonsoftSerialize_Test()
        {
            var json = _jsonSerializer.Serialize(new MyClass1
            {
                Providers = new List<MyClass3>
                {
                    new MyClass3()
                }
            });

            json.ShouldContain("Newtonsoft");
        }

        [Fact]
        public void SystemTextJsonSerialize_Test()
        {
            var json = _jsonSerializer.Serialize(new MyClass2
            {
                Providers = new List<MyClass3>
                {
                    new MyClass3()
                }
            });

            json.ShouldContain("SystemTextJson");
        }
        
        [Fact]
        public void SystemTextJsonSerialize_With_Dictionary_Test()
        {
            var json = _jsonSerializer.Serialize(new MyClassWithDictionary
            {
                Properties =
                {
                    {"A", "AV"},
                    {"B", "BV"}
                }
            });

            var deserialized = _jsonSerializer.Deserialize<MyClassWithDictionary>(json);
            deserialized.Properties.ShouldContain(p => p.Key == "A" && p.Value == "AV");
            deserialized.Properties.ShouldContain(p => p.Key == "B" && p.Value == "BV");
        }

        public class MyClass1
        {
            public string Provider { get; set; }

            public List<MyClass3> Providers { get; set; }
        }

        public class MyClass2
        {
            public string Provider { get; set; }

            public List<MyClass3> Providers { get; set; }
        }

        public class MyClass3
        {
            public string Provider { get; set; }
        }

        public class MyClassWithDictionary
        {
            public Dictionary<string, string> Properties { get; set; }

            public MyClassWithDictionary()
            {
                Properties = new Dictionary<string, string>();
            }
        }

        class NewtonsoftJsonConverter : JsonConverter<MyClass1>, ITransientDependency
        {
            public override void WriteJson(JsonWriter writer, MyClass1 value, JsonSerializer serializer)
            {
                value.Provider = "Newtonsoft";
                foreach (var provider in value.Providers)
                {
                    provider.Provider = "Newtonsoft";
                }

                writer.WriteRawValue(JsonConvert.SerializeObject(value));
            }

            public override MyClass1 ReadJson(JsonReader reader, Type objectType, MyClass1 existingValue, bool hasExistingValue, JsonSerializer serializer)
            {
                return (MyClass1)serializer.Deserialize(reader, objectType);
            }
        }

        class SystemTextJsonConverter : System.Text.Json.Serialization.JsonConverter<MyClass2>, ITransientDependency
        {
            public override void Write(Utf8JsonWriter writer, MyClass2 value, JsonSerializerOptions options)
            {
                value.Provider = "SystemTextJson";
                foreach (var provider in value.Providers)
                {
                    provider.Provider = "SystemTextJson";
                }
                System.Text.Json.JsonSerializer.Serialize(writer, value);
            }

            public override MyClass2 Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
            {
                return (MyClass2)System.Text.Json.JsonSerializer.Deserialize(ref reader, typeToConvert);
            }
        }
    }
}