using DaJiaoYan.Models;
using System.Collections.Generic;

namespace DaJiaoYan.Services
{

    internal class UploadTask
    {
        private static Dictionary<string, UploadTaskInfo> _infos = new Dictionary<string, UploadTaskInfo>();

        public delegate void DeleNewUploadTask(string id);
        public delegate void DeleIncreaseScanTask(string id, int cnt = 1);
        public delegate void DeleIncreaseUploadTask(string id, int cnt = 1);
        public delegate UploadTaskInfo DeleGetUploadTask(string id);
        public delegate void DeleFinishUploadTask(string id);
        public delegate void DeleFinishScanTask(string id);

        public static DeleNewUploadTask deleNewUploadTask = NewUploadTask;
        public static DeleIncreaseScanTask deleIncreaseScanTask = IncreaseScanTask;
        public static DeleIncreaseUploadTask deleIncreaseUploadTask = IncreaseUploadTask;
        public static DeleGetUploadTask deleGetUploadTask = GetUploadTaskInfo;
        public static DeleFinishScanTask deleFinishUploadTask = FinishUploadTask;
        public static DeleFinishScanTask deleFinishScanTask = FinishScanTask;



        private static void NewUploadTask(string id)
        {
            lock (_infos)
            {
                if (!_infos.ContainsKey(id))
                {
                    _infos.Add(id, new UploadTaskInfo(id));
                }
            }
        }

        private static void IncreaseScanTask(string id, int cnt = 1)
        {
            lock (_infos)
            {
                if (_infos.ContainsKey(id))
                {

                    _infos[id].ScanCount += cnt;
                }
            }
        }

        private static void IncreaseUploadTask(string id, int cnt = 1)
        {
            lock (_infos)
            {
                if (_infos.ContainsKey(id))
                {
                    _infos[id].UploadCount += cnt;
                }
            }
        }

        private static UploadTaskInfo GetUploadTaskInfo(string id)
        {
            UploadTaskInfo info;
            lock (_infos)
            {
                if (_infos.ContainsKey(id))
                {
                    info = _infos[id].Copy();
                }
                else
                {
                    info = new UploadTaskInfo(id);
                }
            }
            return info;
        }

        private static void FinishUploadTask(string id)
        {
            lock (_infos)
            {
                if (_infos.ContainsKey(id))
                {
                    _infos[id].UploadFinished = 1;
                }
            }
        }

        private static void FinishScanTask(string id)
        {
            lock (_infos)
            {
                if (_infos.ContainsKey(id))
                {
                    _infos[id].ScanFinished = 1;
                }
            }
        }
    }
}