//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//     file="PipeLine.cs"
//     Project: StgSharp
//     AuthorGroup: Nitload Space
//     Copyright (c) Nitload Space. 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 System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Security.Authentication.ExtendedProtection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace StgSharp.Logic
{

    public class BlueprintPipeline
    {

        private BlueprintNode after;
        private BlueprintNode former;
        private BlueprintPipelineArgs args;
        private SemaphoreSlim formerCompleteSemaphore;

        public BlueprintPipeline(BlueprintNode former, BlueprintNode after)
        {
            this.former = former;
            this.after = after;
            formerCompleteSemaphore = new SemaphoreSlim(initialCount: 0, maxCount: 1);
        }

        public BlueprintNode After => after;

        public BlueprintNode Former => former;

        public int Level => former.Level;

        public BlueprintPipelineArgs Args
        {
            get => args;
            set => args = value;
        }

        public void CompleteAndSkip()
        {
            //Console.WriteLine($"Complete\t{former.Name}\t->\t{after.Name}");
            formerCompleteSemaphore.Release();
        }

        public void CompleteAndWriteData(BlueprintPipelineArgs args)
        {
            this.args = args;
            //Console.WriteLine($"Complete\t{former.Name}\t->\t{after.Name}");
            formerCompleteSemaphore.Release();
        }

        public static void SkipAll(Dictionary<string, BlueprintPipeline> ports)
        {
            if (ports == null)
            {
                throw new ArgumentNullException(nameof(ports));
            }
            foreach (var item in ports)
            {
                if (item.Value!=null)
                {
                    item.Value.CompleteAndSkip();
                }
            }
        }

        public static void WaitAll(Dictionary<string, BlueprintPipeline> ports)
        {
            if (ports == null)
            {
                throw new ArgumentNullException(nameof(ports));
            }
            foreach (var item in ports)
            {
                if (item.Value!=null)
                {
                    item.Value.WaitForStart();
                }
            }
        }

        public void WaitForStart()
        {
            //Console.WriteLine($"Waiting   \t{former.Name}\t->\t{after.Name}");
            formerCompleteSemaphore.Wait();
        }

    }

    public abstract class BlueprintPipelineArgs
    {
        public object? Value { get; set; }

    }
}