// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using System.Security.Claims;
using System.Text.Json;
using System.Text.Json.Serialization;
using NodaTime;
using NodaTime.Serialization.SystemTextJson;
using Squidex.Events.Utils;
using Squidex.Infrastructure.Json;
using Squidex.Infrastructure.Json.Objects;
using Squidex.Infrastructure.Json.System;
using Squidex.Infrastructure.Queries;
using Squidex.Infrastructure.Queries.Json;

#pragma warning disable SYSLIB0011 // Type or member is obsolete

namespace Squidex.Infrastructure.TestHelpers;

public static class TestUtils
{
    public static readonly IJsonSerializer DefaultSerializer = CreateSerializer();

    private sealed class ObjectHolder<T>
    {
        public T Value1 { get; set; }

        public T Value2 { get; set; }
    }

    public static IJsonSerializer CreateSerializer(Action<JsonSerializerOptions>? configure = null)
    {
        var serializerSettings = DefaultOptions(configure);

        return new SystemJsonSerializer(serializerSettings);
    }

    public static JsonSerializerOptions DefaultOptions(Action<JsonSerializerOptions>? configure = null)
    {
        var options = new JsonSerializerOptions(JsonSerializerDefaults.Web);

        // It is also a readonly list, so we have to register it first, so that other converters do not pick this up.
        options.Converters.Add(new StringConverter<PropertyPath>(x => x));

        options.ConfigureForNodaTime(DateTimeZoneProviders.Tzdb);
        options.Converters.Add(new JsonValueConverter());
        options.Converters.Add(new HeaderValueConverter());
        options.Converters.Add(new ReadonlyDictionaryConverterFactory());
        options.Converters.Add(new ReadonlyListConverterFactory());
        options.Converters.Add(new SurrogateJsonConverter<ClaimsPrincipal, ClaimsPrincipalSurrogate>());
        options.Converters.Add(new SurrogateJsonConverter<FilterNode<JsonValue>, JsonFilterSurrogate>());
        options.Converters.Add(new StringConverter<CompareOperator>());
        options.Converters.Add(new StringConverter<DomainId>());
        options.Converters.Add(new StringConverter<NamedId<DomainId>>());
        options.Converters.Add(new StringConverter<NamedId<Guid>>());
        options.Converters.Add(new StringConverter<NamedId<long>>());
        options.Converters.Add(new StringConverter<NamedId<string>>());
        options.Converters.Add(new StringConverter<Language>());
        options.Converters.Add(new StringConverter<RefToken>());
        options.Converters.Add(new JsonStringEnumConverter());
        configure?.Invoke(options);

        return options;
    }

    public static T SerializeAndDeserializeJson<T>(this T value)
    {
        return SerializeAndDeserializeJson<T, T>(value);
    }

    public static TOut SerializeAndDeserializeJson<TOut, TIn>(this TIn value)
    {
        var json = DefaultSerializer.Serialize(new ObjectHolder<TIn> { Value1 = value, Value2 = value });

        return DefaultSerializer.Deserialize<ObjectHolder<TOut>>(json).Value1;
    }

    public static T DeserializeJson<T>(string value)
    {
        var json = DefaultSerializer.Serialize(new ObjectHolder<string> { Value1 = value, Value2 = value });

        return DefaultSerializer.Deserialize<ObjectHolder<T>>(json).Value1;
    }

    public static string CleanJson(this string json)
    {
        using var document = JsonDocument.Parse(json);

        return DefaultSerializer.Serialize(document, true);
    }
}