using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BPASmart.Model
{
    public static class ExpandMethod
    {
        /// <summary>
        /// 获取数据类型的大小
        /// </summary>
        /// <param name="eDataType"></param>
        /// <returns></returns>
        public static ushort GetEDataSize(this EDataType eDataType)
        {
            switch (eDataType)
            {
                case EDataType.Bool:
                case EDataType.Byte:
                case EDataType.Int:
                case EDataType.Word:
                    return 1;
                case EDataType.Dint:
                case EDataType.Dword:
                case EDataType.Float:
                    return 2;
                case EDataType.Double:
                    break;
                case EDataType.String:
                    break;
                default:
                    break;
            }
            return 1;
        }

        /// <summary>
        /// 获取Modbus Tcp 连续变量数据的组对象
        /// </summary>
        /// <param name="variableInfos"></param>
        /// <param name="by"></param>
        /// <returns></returns>
        public static List<ReadDataModel> GetDataGroup(this IGrouping<string, VariableInfo> variableInfos, int by = 1)
        {
            List<ReadDataModel> ReturnValue = new List<ReadDataModel>();
            var res = variableInfos?.OrderBy(p => p.RealAddress).ToList();
            List<int> RealAddresss = new List<int>();
            variableInfos.ToList()?.ForEach(item => { if (int.TryParse(item.RealAddress, out int add)) RealAddresss.Add(add); });
            int count = 0;
            if (res != null)
            {
                int address = RealAddresss.Min();
                int startAddress = address;
                for (int i = 0; i < res.Count; i++)
                {
                    if (int.TryParse(res.ElementAt(i).RealAddress, out int TempAddress))
                    {
                        if (TempAddress == address)
                        {
                            count++;
                            address += by;
                        }
                        else
                        {
                            ReturnValue.Add(new ReadDataModel() { StartAddress = (ushort)startAddress, Length = (ushort)count });
                            count = 1;
                            address = TempAddress + by;
                            startAddress = TempAddress;
                        }
                    }

                }
                ReturnValue.Add(new ReadDataModel() { StartAddress = (ushort)startAddress, Length = (ushort)count });
            }
            return ReturnValue;
        }

        public static Dictionary<EDataType, List<ReadDataModel>> GetReadDataModels(this ObservableCollection<VariableInfo> varialeInfos)
        {
            Dictionary<EDataType, List<ReadDataModel>> readDataModels = new Dictionary<EDataType, List<ReadDataModel>>();
            varialeInfos.GroupBy(p => p.DataType)?.ToList()?.ForEach(tempVar =>
            {
                if (tempVar.Key != null && tempVar.Key.Length > 0)
                {
                    EDataType dataType = (EDataType)Enum.Parse(typeof(EDataType), tempVar.Key);
                    switch (dataType)
                    {
                        case EDataType.Bool:
                        case EDataType.Byte:
                        case EDataType.Int:
                        case EDataType.Word:
                            if (!readDataModels.ContainsKey(dataType)) readDataModels.TryAdd(dataType, tempVar.GetDataGroup());
                            break;
                        case EDataType.Dint:
                        case EDataType.Dword:
                        case EDataType.Float:
                            if (!readDataModels.ContainsKey(dataType)) readDataModels.TryAdd(dataType, tempVar.GetDataGroup(2));
                            break;
                        default:
                            break;
                    }
                }
            });
            return readDataModels;
        }
    }
}