// ------------------------------------------------------------------------
// Copyright 2021 The Dapr Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//     http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------

using System.Linq;
using System.Text.Json;
using Dapr.Actors.Client;
using Dapr.Actors.Runtime;
using Microsoft.Extensions.DependencyInjection;
using Xunit;

namespace Dapr.Actors.AspNetCore
{
    public class ActorHostingTest
    {
        [Fact]
        public void CanRegisterActorsInSingleCalls()
        {
            var services = new ServiceCollection();
            services.AddLogging();
            services.AddOptions();
            services.AddActors(options =>
            {
                options.Actors.RegisterActor<TestActor1>();
                options.Actors.RegisterActor<TestActor2>();
            });
            
            var runtime = services.BuildServiceProvider().GetRequiredService<ActorRuntime>();

            Assert.Collection(
                runtime.RegisteredActors.Select(r => r.Type.ActorTypeName).OrderBy(t => t),
                t => Assert.Equal(ActorTypeInformation.Get(typeof(TestActor1), actorTypeName: null).ActorTypeName, t),
                t => Assert.Equal(ActorTypeInformation.Get(typeof(TestActor2), actorTypeName: null).ActorTypeName, t));
        }

        [Fact]
        public void CanRegisterActorsInMultipleCalls()
        {
            var services = new ServiceCollection();
            services.AddLogging();
            services.AddOptions();
            services.AddActors(options =>
            {
                options.Actors.RegisterActor<TestActor1>();
            });
            
            services.AddActors(options =>
            {
                options.Actors.RegisterActor<TestActor2>();
            });

            var runtime = services.BuildServiceProvider().GetRequiredService<ActorRuntime>();

            Assert.Collection(
                runtime.RegisteredActors.Select(r => r.Type.ActorTypeName).OrderBy(t => t),
                t => Assert.Equal(ActorTypeInformation.Get(typeof(TestActor1), actorTypeName: null).ActorTypeName, t),
                t => Assert.Equal(ActorTypeInformation.Get(typeof(TestActor2), actorTypeName: null).ActorTypeName, t));
        }

        [Fact]
        public void CanAccessProxyFactoryWithCustomJsonOptions()
        {
            var jsonOptions = new JsonSerializerOptions();

            var services = new ServiceCollection();
            services.AddLogging();
            services.AddOptions();
            services.AddActors(options =>
            {
                options.JsonSerializerOptions = jsonOptions;
            });
            
            services.AddActors(options =>
            {
                options.Actors.RegisterActor<TestActor2>();
            });

            var factory = (ActorProxyFactory)services.BuildServiceProvider().GetRequiredService<IActorProxyFactory>();
            Assert.Same(jsonOptions, factory.DefaultOptions.JsonSerializerOptions);
        }

        private interface ITestActor : IActor
        {
        }

        private class TestActor1 : Actor, ITestActor
        {
            public TestActor1(ActorHost host) 
                : base(host)
            {
            }
        }

        private class TestActor2 : Actor, ITestActor
        {
            public TestActor2(ActorHost host) 
                : base(host)
            {
            }
        }
    }
}