//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="Program"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//     
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//     
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.Collections;
using StgSharp.Controlling.UsrActivity;
using StgSharp.Geometries;
using StgSharp.Graphics;
using StgSharp.HighPerformance;
using StgSharp.HighPerformance.Memory;
using StgSharp.Mathematics;
using StgSharp.Mathematics.Numeric;
using StgSharp.Model.Step;
using StgSharp.MVVM;
using StgSharp.MVVM.ViewModel;
using StgSharp.Script;
using StgSharp.Script.Express;

using System;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
using System.Threading;
using System.Xml.XPath;

namespace StgSharp
{
    internal static partial class Program
    {

        private static string testExpPath = @"D:\\Programmer\\stepcode\\data\\ap203\\ap203.exp";

        internal static unsafe void Main(string[] args)
        {
            try
            {
                World.Init();

                // New test with synchronized start:
                // - 8 producer threads, each pushing 1000 unique integers
                // - 8 consumer threads, each attempting to pop 1000 times
                // - Consumers print one line per successful pop
                // - Finally, print popped/remaining counts and values

                const int producerThreads = 8;
                const int consumerThreads = 8;
                const int perProducer = 1000;
                const int perConsumerAttempts = 1000;

                ConcurrentBufferStack<int> stack = new ConcurrentBufferStack<int>();
                Thread[] producers = new Thread[producerThreads];
                Thread[] consumers = new Thread[consumerThreads];
                ConcurrentBag<int> popped = new ConcurrentBag<int>();

                int totalThreads = producerThreads + consumerThreads;
                using CountdownEvent ready = new CountdownEvent(totalThreads);
                using ManualResetEventSlim startGate = new ManualResetEventSlim(false);

                for (int c = 0; c < consumerThreads; c++)
                {
                    consumers[c] = new Thread(() => {
                        ready.Signal();
                        startGate.Wait();

                        for (int k = 0; k < perConsumerAttempts; k++)
                        {
                            if (stack.TryPop(out int v))
                            {
                                popped.Add(v);
                                Console.WriteLine($"pop: {v}");
                            } else
                            {
                                Thread.Yield();
                            }
                        }
                    })
                    {
                        IsBackground = true
                    };
                }

                for (int p = 0; p < producerThreads; p++)
                {
                    int captured = p;
                    producers[p] = new Thread(() => {
                        ready.Signal();
                        startGate.Wait();

                        int begin = captured * perProducer;
                        for (int j = 0; j < perProducer; j++)
                        {
                            stack.Push(begin + j);
                            if ((j & 0xFF) == 0) {
                                Thread.Yield();
                            }
                        }
                    })
                    {
                        IsBackground = true
                    };
                }

                foreach (Thread t in consumers) {
                    t.Start();
                }

                foreach (Thread t in producers) {
                    t.Start();
                }

                // Ensure all threads are ready, then start simultaneously
                ready.Wait();
                startGate.Set();

                foreach (Thread t in producers) {
                    t.Join();
                }

                foreach (Thread t in consumers) {
                    t.Join();
                }

                // Gather remaining data
                List<int> remaining = new System.Collections.Generic.List<int>();
                while (stack.TryPop(out int value)) {
                    remaining.Add(value);
                }

                Console.WriteLine($"Popped count: {popped.Count}");
                Console.WriteLine("Popped values:");
                foreach (int v in popped)
                {
                    Console.Write(v);
                    Console.Write('\t');
                }
                Console.WriteLine();

                Console.WriteLine($"Remaining count: {remaining.Count}");
                Console.WriteLine("Remaining values:");
                foreach (int v in remaining)
                {
                    Console.Write(v);
                    Console.Write('\t');
                }
                Console.WriteLine();

                // Sanity check
                Console.WriteLine($"Produced: {producerThreads * perProducer}, Popped+Remaining: {popped.Count + remaining.Count}");

                /*
                // TestMatrixParallel();

                // 原有的矩阵测试代码
                HybridLayerSegregatedFitAllocator hlsf = new HybridLayerSegregatedFitAllocator(64 * 400 * 400);

                Matrix<float> m = Matrix<float>.FromHlsf(400, 200, hlsf);

                int i = 0, ii = 0;

                foreach (MatrixSegment<float> lines in m.GetRowEnumeration())
                {
                    i = 0;
                    foreach (MatrixKernel<float>* item in lines)
                    {
                        i++;
                        Console.WriteLine(i);
                    }
                    ii++;
                    Console.WriteLine($"============================{ii}");
                }
                /**/
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
                /*
                World.WriteLog($"{ex}", LogType.Error);
                if( true ) { }
                Dialogue.PostError( ex ); 
                /**/
                World.Terminate(-1);
                /**/
            }
            finally
            {
                World.Terminate(0);
            }
            /**/
        }

    }
}