using OpenCvSharp;
using System.Collections.Generic;

namespace DaJiaoYan.Variables
{
    internal class Vars
    {
        public delegate void DeleCounterChange(int i);
        public static DeleCounterChange DelegateCounterChange;
        private static readonly object CounterLocker = new object();

        /// <summary>
        /// 任务
        /// </summary>
        private static readonly Dictionary<string, bool> Tasks = new Dictionary<string, bool>();
        private static readonly object TasksLocker = new object();

        private static int _UploadedCounter = 0;

        /// <summary>
        /// 请求头
        /// </summary>
        public static Dictionary<string, object> RequestHeaders = new Dictionary<string, object>
        {
            {"AppName", Const.APP_NAME },
            {"AppVersion", Const.APP_VERSION },
            {"Platform", Const.PLATFORM },
            {"Authorization", "" },
        };

        /// <summary>
        /// 扫描仪列表
        /// </summary>
        public static string[] Scanners = null;
        /// <summary>
        /// 当前选择的扫描仪
        /// </summary>
        public static string ScannerSelected = null;

        /// <summary>
        /// 可处理图片类型
        /// </summary>
        public static readonly List<string> AvalibleImageSuffixes = new List<string> { ".png", ".jpg", ".jpeg" };

        /// <summary>
        /// opencv jpeg 保存配置
        /// </summary>
        public readonly static ImageEncodingParam IMAGE_SAVE_JPEG_PARAM = new ImageEncodingParam(ImwriteFlags.JpegQuality, 70);
        /// <summary>
        /// opencv png 保存配置
        /// </summary>
        public readonly static ImageEncodingParam IMAGE_SAVE_PNG_PARAM = new ImageEncodingParam(ImwriteFlags.PngCompression, 5);

        public static void SetTaskStatus(string taskId, bool status)
        {
            lock (TasksLocker)
            {
                Tasks[taskId] = status;
            }
        }


        public static void UploadedCounterIncrease(int i = 1)
        {
            int n = 0;
            lock (CounterLocker)
            {
                n = _UploadedCounter += i;
            }
            DelegateCounterChange?.Invoke(n);
        }


        public static bool AllTaskFinished()
        {
            bool res = true;
            foreach (var item in Tasks.Values)
            {
                if (!item)
                {
                    res = false;
                    break;
                }
            }
            return res;
        }
    }
}