// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging.Testing;

namespace Microsoft.AspNetCore.SignalR.Tests
{
    public class FunctionalTestBase : VerifiableLoggedTest
    {
        private readonly Func<WriteContext, bool> _globalExpectedErrorsFilter;

        public FunctionalTestBase()
        {
            // Suppress errors globally here
            _globalExpectedErrorsFilter = (writeContext) => false;
        }

        private Func<WriteContext, bool> ResolveExpectedErrorsFilter(Func<WriteContext, bool> expectedErrorsFilter)
        {
            if (expectedErrorsFilter == null)
            {
                return _globalExpectedErrorsFilter;
            }

            return (writeContext) =>
            {
                if (expectedErrorsFilter(writeContext))
                {
                    return true;
                }

                return _globalExpectedErrorsFilter(writeContext);
            };
        }

        public Task<InProcessTestServer<T>> StartServer<T>(Func<WriteContext, bool> expectedErrorsFilter = null) where T : class
        {
            var disposable = base.StartVerifiableLog(ResolveExpectedErrorsFilter(expectedErrorsFilter));
            return InProcessTestServer<T>.StartServer(LoggerFactory, disposable);
        }
    }
}