//--------------------------------------------------------------------
//     此代码由liquid模板自动生成  byzhouhang 20240909
//     生成时间 2026-03-10 06:15:17Z 
//     对此文件的更改可能会导致不正确的行为，并且如果重新生成代码，这些更改将会丢失。
//--------------------------------------------------------------------
using IRaCIS.Core.Application.Helper;
using IRaCIS.Core.Application.Interfaces;
using IRaCIS.Core.Application.ViewModel;
using IRaCIS.Core.Domain.Models;
using IRaCIS.Core.Infra.EFCore;
using IRaCIS.Core.Infra.EFCore.Common;
using IRaCIS.Core.Infrastructure.Extention;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
using Spire.Doc.Interface;
using System.Drawing;
using System.Threading.Channels;
using System.Threading.Tasks;

namespace IRaCIS.Core.Application.Service;

[ApiExplorerSettings(GroupName = "Common")]
public class FileUploadRecordService(IRepository<FileUploadRecord> _fileUploadRecordRepository,
                                  IMapper _mapper, IUserInfo _userInfo, IStringLocalizer _localizer, IOptionsMonitor<ObjectStoreServiceOptions> options,
                                  IFusionCache _fusionCache, IRepository<Trial> _trialRepository, FileSyncQueue _fileSyncQueue) : BaseService, IFileUploadRecordService
{

    ObjectStoreServiceOptions ObjectStoreServiceConfig = options.CurrentValue;

    [HttpPost]
    public async Task<PageOutput<FileUploadRecordView>> GetFileUploadRecordList(FileUploadRecordQuery inQuery)
    {

        var fileUploadRecordQueryable = _fileUploadRecordRepository
               .WhereIf(inQuery.BatchDataType != null, t => t.BatchDataType == inQuery.BatchDataType)
               .WhereIf(!string.IsNullOrEmpty(inQuery.FileName), t => t.FileName.Contains(inQuery.FileName))
               .WhereIf(!string.IsNullOrEmpty(inQuery.FileType), t => t.FileType.Contains(inQuery.FileType))
               .WhereIf(inQuery.IsSync != null, t => t.IsSync == inQuery.IsSync)
               .WhereIf(inQuery.Priority != null, t => t.Priority == inQuery.Priority)
               .WhereIf(inQuery.BatchDataType != null, t => t.BatchDataType == inQuery.BatchDataType)
               .WhereIf(!string.IsNullOrEmpty(inQuery.UploadRegion), t => t.UploadRegion.Contains(inQuery.UploadRegion))
               .WhereIf(!string.IsNullOrEmpty(inQuery.TargetRegion), t => t.TargetRegion.Contains(inQuery.TargetRegion))
               .WhereIf(!string.IsNullOrEmpty(inQuery.UploadBatchId), t => t.UploadBatchId.Contains(inQuery.UploadBatchId))
               .WhereIf(!string.IsNullOrEmpty(inQuery.Path), t => t.Path.Contains(inQuery.Path))
               .WhereIf(inQuery.UploadStartTime != null, t => t.CreateTime >= inQuery.UploadStartTime)
               .WhereIf(inQuery.UploadEndTime != null, t => t.CreateTime <= inQuery.UploadEndTime)
               .WhereIf(inQuery.SyncFinishedStartTime != null, t => t.SyncFinishedTime >= inQuery.SyncFinishedStartTime)
               .WhereIf(inQuery.SyncFinishedEndTime != null, t => t.SyncFinishedTime <= inQuery.SyncFinishedEndTime)

                .ProjectTo<FileUploadRecordView>(_mapper.ConfigurationProvider);

        var pageList = await fileUploadRecordQueryable.ToPagedListAsync(inQuery);

        return pageList;
    }


  

    public async Task<IResponseOutput> AddOrUpdateFileUploadRecord(FileUploadRecordAddOrEdit addOrEditFileUploadRecord)
    {

        addOrEditFileUploadRecord.IP = _userInfo.IP;

        if (ObjectStoreServiceConfig.IsOpenStoreSync && _userInfo.Domain.IsNotNullOrEmpty())
        {
            var find = ObjectStoreServiceConfig.SyncConfigList.FirstOrDefault(t => t.Domain == _userInfo.Domain);
            if (find != null)
            {
                addOrEditFileUploadRecord.UploadRegion = find.UploadRegion;
                addOrEditFileUploadRecord.TargetRegion = find.TargetRegion;

            }
        }

        if (addOrEditFileUploadRecord.TrialId != null)
        {

            var trialDataStore = await _fusionCache.GetOrSetAsync(CacheKeys.TrialDataStoreType(addOrEditFileUploadRecord.TrialId.Value), async _ =>
            {
                return await _trialRepository.Where(t => t.Id == addOrEditFileUploadRecord.TrialId).Select(t => t.TrialDataStoreType)
                    .FirstOrDefaultAsync();
            },
                      TimeSpan.FromDays(7)
                  );

            //项目配置了，那么就设置需要同步
            if (trialDataStore == TrialDataStore.MUtiCenter)
            {
                addOrEditFileUploadRecord.IsNeedSync = true;

                addOrEditFileUploadRecord.Priority = 0;


            }
            else
            {
                addOrEditFileUploadRecord.TargetRegion = "";

            }

        }
        else
        {
            //系统文件，默认同步
            addOrEditFileUploadRecord.IsNeedSync = true;

            addOrEditFileUploadRecord.Priority = 0;
        }

        var entity = await _fileUploadRecordRepository.InsertOrUpdateAsync(addOrEditFileUploadRecord, true);

        if (addOrEditFileUploadRecord.IsNeedSync == true)
        {
            _fileSyncQueue.Enqueue(entity.Id, addOrEditFileUploadRecord.Priority ?? 0);
        }

        return ResponseOutput.Ok(entity.Id.ToString());

    }


    [HttpDelete("{fileUploadRecordId:guid}")]
    public async Task<IResponseOutput> DeleteFileUploadRecord(Guid fileUploadRecordId)
    {
        var success = await _fileUploadRecordRepository.BatchDeleteNoTrackingAsync(t => t.Id == fileUploadRecordId);
        return ResponseOutput.Ok();
    }

}


#region 同步队列



/// <summary>
/// 同步队列 信号量
/// </summary>
public class FileSyncQueue
{
    private readonly PriorityQueue<Guid, int> _queue = new();
    private readonly SemaphoreSlim _signal = new(0);
    private readonly object _lock = new();

    public void Enqueue(Guid id, int priority)
    {
        lock (_lock)
        {
            // priority 越大越优先
            _queue.Enqueue(id, -priority);
        }

        //类似于计数器，不会产生通知风暴，可消费资源 +1
        //if (有等待线程)  唤醒一个 else 仅增加计数
        _signal.Release(); // 唤醒一个 worker
    }

    /// <summary>
    /// 如果没有任务 → 挂起等待  有任务 → 被唤醒并返回
    /// </summary>
    /// <param name="ct"></param>
    /// <returns></returns>
    public async Task<Guid> DequeueAsync(CancellationToken ct)
    {
        await _signal.WaitAsync(ct);

        lock (_lock)
        {
            return _queue.Dequeue();
        }
    }
}

#region 这里不用 SyncQueueUseChannel   和调度器 SyncScheduler
public class SyncQueueUseChannel
{
    // 优先级队列（priority 越大越先执行）
    private readonly PriorityQueue<Guid, int> _queue = new();

    // Worker 唤醒信号
    private readonly Channel<bool> _signal =
        Channel.CreateUnbounded<bool>(new UnboundedChannelOptions
        {
            SingleReader = false,
            SingleWriter = false
        });

    // 队列任务数量（不是CPU数量！）
    private int _count = 0;


    private readonly object _lock = new();

    /// <summary>
    /// 入队任务
    /// </summary>
    public void Enqueue(Guid id, int priority)
    {
        bool needSignal = false;

        lock (_lock)
        {
            // priority 越大越优先 → 转负数
            _queue.Enqueue(id, -priority);

            // 只有从 0 → 1 才需要唤醒 worker
            if (_count == 0)
                needSignal = true;

            _count++;
        }

        // 避免 signal 风暴
        if (needSignal)
            _signal.Writer.TryWrite(true);
    }

    /// <summary>
    /// Worker 等待并获取任务
    /// </summary>
    public async Task<Guid> DequeueAsync(CancellationToken ct)
    {

        // 没任务时挂起（不会占CPU）
        await _signal.Reader.ReadAsync(ct);

        lock (_lock)
        {
            var id = _queue.Dequeue();

            _count--;

            // 如果还有任务，继续唤醒下一个 worker
            if (_count > 0)
                _signal.Writer.TryWrite(true);

            return id;
        }
    }

    /// <summary>
    /// 当前排队数量（调试用）
    /// </summary>
    public int Count
    {
        get
        {
            lock (_lock)
                return _count;
        }
    }
}

/// <summary>
/// 同步调度器
/// </summary>
public class FileSyncScheduler
{
    private readonly FileSyncQueue _queue;

    public FileSyncScheduler(FileSyncQueue queue)
    {
        _queue = queue;
    }

    public void Enqueue(FileUploadRecord file)
    {
        if (file.IsNeedSync != true)
            return;

        _queue.Enqueue(file.Id, file.Priority ?? 0);
    }

    /// <summary>
    /// 如果没有任务 → 挂起等待  有任务 → 被唤醒并返回
    /// </summary>
    /// <param name="ct"></param>
    /// <returns></returns>
    public Task<Guid> WaitAsync(CancellationToken ct)
        => _queue.DequeueAsync(ct);
}
#endregion






#endregion