// Copyright (c) Six Labors.
// Licensed under the Apache License, Version 2.0.

using System;
using System.Reflection;
using System.Threading;
using SixLabors.ImageSharp.Memory.Internals;
using SixLabors.ImageSharp.Tests.Formats.Jpg;
using SixLabors.ImageSharp.Tests.PixelFormats.PixelOperations;
using SixLabors.ImageSharp.Tests.ProfilingBenchmarks;
using Xunit.Abstractions;

// in this file, comments are used for disabling stuff for local execution
#pragma warning disable SA1515
#pragma warning disable SA1512

namespace SixLabors.ImageSharp.Tests.ProfilingSandbox
{
    public class Program
    {
        private class ConsoleOutput : ITestOutputHelper
        {
            public void WriteLine(string message) => Console.WriteLine(message);

            public void WriteLine(string format, params object[] args) => Console.WriteLine(format, args);
        }

        /// <summary>
        /// The main entry point. Useful for executing benchmarks and performance unit tests manually,
        /// when the IDE test runners lack some of the functionality. Eg.: it's not possible to run JetBrains memory profiler for unit tests.
        /// </summary>
        /// <param name="args">
        /// The arguments to pass to the program.
        /// </param>
        public static void Main(string[] args)
        {
            try
            {
                LoadResizeSaveParallelMemoryStress.Run(args);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }

            // RunJpegEncoderProfilingTests();
            // RunJpegColorProfilingTests();
            // RunDecodeJpegProfilingTests();
            // RunToVector4ProfilingTest();
            // RunResizeProfilingTest();

            // Console.ReadLine();
        }

        private static Version GetNetCoreVersion()
        {
            Assembly assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;
            Console.WriteLine(assembly.Location);
            string[] assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);
            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");
            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)
            {
                return Version.Parse(assemblyPath[netCoreAppIndex + 1]);
            }

            return null;
        }

        private static void RunJpegEncoderProfilingTests()
        {
            var benchmarks = new JpegProfilingBenchmarks(new ConsoleOutput());
            benchmarks.EncodeJpeg_SingleMidSize();
        }

        private static void RunJpegColorProfilingTests()
        {
            new JpegColorConverterTests(new ConsoleOutput()).BenchmarkYCbCr(false);
            new JpegColorConverterTests(new ConsoleOutput()).BenchmarkYCbCr(true);
        }

        private static void RunResizeProfilingTest()
        {
            var test = new ResizeProfilingBenchmarks(new ConsoleOutput());
            test.ResizeBicubic(4000, 4000);
        }

        private static void RunToVector4ProfilingTest()
        {
            var tests = new PixelOperationsTests.Rgba32_OperationsTests(new ConsoleOutput());
            tests.Benchmark_ToVector4();
        }

        private static void RunDecodeJpegProfilingTests()
        {
            Console.WriteLine("RunDecodeJpegProfilingTests...");
            var benchmarks = new JpegProfilingBenchmarks(new ConsoleOutput());
            foreach (object[] data in JpegProfilingBenchmarks.DecodeJpegData)
            {
                string fileName = (string)data[0];
                int executionCount = (int)data[1];
                benchmarks.DecodeJpeg(fileName, executionCount);
            }

            Console.WriteLine("DONE.");
        }
    }
}