using HslCommunication;
using HslCommunication.ModBus;
using PLCHelper.Entity;
using System;
using System.Collections.Concurrent;

namespace PLCHelper
{
    public class ModbusHelper
    {
        private static ConcurrentDictionary<string, ModbusTcpNet> cache = new ConcurrentDictionary<string, ModbusTcpNet>();

        internal static ModbusTcpNet GetClient(string ip, int port)
        {
            string key = $"{ip}:{port};";
            if (!cache.ContainsKey(key))
            {
                var client = new ModbusTcpNet(ip, port);
                cache[key] = client;
                client.ConnectServer();
            }
            return cache[key];
        }

        internal static bool ParseConfig(string address, out string ip, out int port, out string index)
        {
            try
            {
                var arr = address.Split(',');
                ip = arr[0];
                port = int.Parse(arr[1]);
                index = arr[2];
                return true;
            }
            catch
            {
                ip = null;
                port = -1;
                index = null;
                return false;
            }
        }

        internal static void Release()
        {
            foreach (var client in cache.Values)
            {
                client.Dispose();
            }
            cache.Clear();
        }

        internal static bool ReadData(PLCTagData data, out object val, out string errMsg)
        {
            val = null;
            try
            {
                string address = data.Address;
                if (!ModbusHelper.ParseConfig(address, out string ip, out int port, out string index))
                {
                    errMsg = "解析配置失败";
                    return false;
                }
                var api = ModbusHelper.GetClient(ip, port);
                if (data.Type == PLCTagType.BOOL)
                {
                    var res = api.ReadBool(index);
                    val = res.Content;
                    errMsg = res.Message;
                    return res.IsSuccess;
                }
                else if (data.Type == PLCTagType.SHORT)
                {
                    var res = api.ReadInt16(index);
                    val = res.Content;
                    errMsg = res.Message;
                    return res.IsSuccess;
                }
                else if (data.Type == PLCTagType.USHORT)
                {
                    var res = api.ReadUInt16(index);
                    val = res.Content;
                    errMsg = res.Message;
                    return res.IsSuccess;
                }
                else if (data.Type == PLCTagType.INT)
                {
                    var res = api.ReadInt32(index);
                    val = res.Content;
                    errMsg = res.Message;
                    return res.IsSuccess;
                }
                else if (data.Type == PLCTagType.FLOAT)
                {
                    var res = api.ReadFloat(index);
                    val = res.Content;
                    errMsg = res.Message;
                    return res.IsSuccess;
                }
                errMsg = "类型不支持";
                return false;
            }
            catch (Exception ex)
            {
                errMsg = ex.Message;
                return false;
            }
        }

        internal static bool WriteData(PLCTagData data, object val, out string msg)
        {
            try
            {
                string address = data.Address;
                if (!ParseConfig(address, out string ip, out int port, out string index))
                {
                    msg = "解析配置失败";
                    return false;
                }
                var api = GetClient(ip, port);
                OperateResult res;
                switch (data.Type)
                {
                    case PLCTagType.BOOL:
                        res = api.Write(index, bool.Parse(val.ToString()));
                        break;
                    case PLCTagType.SHORT:
                        res = api.Write(index, short.Parse(val.ToString()));
                        break;
                    case PLCTagType.USHORT:
                        res = api.Write(index, ushort.Parse(val.ToString()));
                        break;
                    case PLCTagType.INT:
                        res = api.Write(index, int.Parse(val.ToString()));
                        break;
                    case PLCTagType.FLOAT:
                        res = api.Write(index, float.Parse(val.ToString()));
                        break;
                    default:
                        msg = "类型不支持";
                        return false;
                }
                msg = res.Message;
                return res.IsSuccess;
            }
            catch (Exception ex)
            {
                msg = ex.Message;
                return false;
            }
        }
    }
}