// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;
using System.Linq;

namespace TLens.Analyzers
{
    sealed class InterfaceTypeCheckAnalyzers : InterfacesAnalyzer
    {
        public override void PrintResults(int maxCount)
        {
            var entries = interfaces.Keys.Where(l => !usage.ContainsKey(l)).Take(maxCount);
            if (!entries.Any())
                return;

            PrintHeader("Never Referenced Interface Types");
            foreach (var iface in entries)
            {
                Console.WriteLine($"Unused interface type '{iface.FullName}' is implemented by");
                foreach (var type in interfaces[iface])
                {
                    Console.WriteLine($"\t{type.FullName}");
                }

                Console.WriteLine();
            }
        }
    }
}