using FestoDebugger.Common;
using FestoDebugger.Service;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TwinCAT.TypeSystem;

namespace FestoDebugger.Beckoff
{
    public class BeckhoffIOManager : Singleton<BeckhoffIOManager>
    {
        #region 内部常量
        private const string DI_ITEMLIST = "System.DIItemList";
        private const string DO_ITEMLIST = "System.DOItemList";
        private const string DIGITAL = "Digital";
        #endregion

        #region 内部变量
        private Dictionary<string, BeckhoffDIAccessor> _diMap = new Dictionary<string, BeckhoffDIAccessor>();
        private Dictionary<string, BeckhoffDOAccessor> _doMap = new Dictionary<string, BeckhoffDOAccessor>();

        private Dictionary<string, List<NotifiableIoItem>> _ioItemList = new Dictionary<string, List<NotifiableIoItem>>();
        private int _size = 0;
        /// <summary>
        /// 模块变量更新委托字典(key-模块.变量,value-变量委托事件
        /// </summary>
        private Dictionary<string, BeckhoffDelegate.OnUpdateModuleVariableValue> _moduleVariableActionDic = new Dictionary<string, BeckhoffDelegate.OnUpdateModuleVariableValue>();
        /// <summary>
        /// 变量数值字典（key-io变量名称,value-数值)
        /// </summary>
        private Dictionary<string, object> _nameVariableValueDic = new Dictionary<string, object>();
        /// <summary>
        /// do对应地址(多个do对应同一址)
        /// </summary>
        private List<string> _doAddress = new List<string>();
        #endregion

        #region 属性
        /// <summary>
        /// IO数据长度
        /// </summary>
        public int Size { get { return _size; } }
        /// <summary>
        /// 模块变量-数值字典
        /// </summary>
        private Dictionary<string, object> _moduleNameVariableValueDic = new Dictionary<string, object>();


        #endregion
        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="cfg"></param>
        public void Initialize(BeckhoffCfg cfg)
        {
            SubscribeIoItemList();
            InitialAccessors(cfg);
        }

        public Dictionary<string, object> GetNameValueDic()
        {
            _moduleNameVariableValueDic.Clear();
            List<string> keys = _nameVariableValueDic.Keys.ToList();
            foreach (string item in keys)
            {
                if(!_nameVariableValueDic.ContainsKey(item))
                {
                    continue;
                }
                string ModuleName = BeckhoffModuleIOManager.Instance.GetInnerModuleNameByIOName(item);
                _moduleNameVariableValueDic.Add(ModuleName, _nameVariableValueDic[item]);
            }
            return _moduleNameVariableValueDic;
        } 
        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="cfg"></param>
        private void InitialAccessors(BeckhoffCfg cfg)
        {
            foreach (BeckhoffInput item in cfg.Controller.Inputs)
            {
                string key = $"{item.Name}";
                if (item.Type == DIGITAL)
                {
                    if (!_diMap.ContainsKey(key))
                    {
                        BeckhoffDIAccessor accessor = new BeckhoffDIAccessor(key, item.Address, item.Scaling);
                        _diMap[key] = accessor;
                        _ioItemList[DI_ITEMLIST].Add(new NotifiableIoItem()
                        {
                            Address = accessor.Address,
                            Name = key
                        });
                        BeckhoffItemManager.Instance.InitBeckhoffItem(key, item.Address, item.DataType, "di", 1, false, 0, item.Invert);
                        _size++;
                    }
                }
            }
            foreach (BeckhoffOutput item in cfg.Controller.Outputs)
            {
                string key = $"{item.Name}";
                if (item.Type == DIGITAL)
                {
                    if (!_doMap.ContainsKey(key))
                    {
                        BeckhoffDOAccessor accessor = new BeckhoffDOAccessor(key, item.Address, item.Scaling, item.BitOperated, item.Bit);
                        _doMap[key] = accessor;
                        _ioItemList[DO_ITEMLIST].Add(new NotifiableIoItem()
                        {
                            Address = accessor.Address,
                            Name = key
                        });
                        BeckhoffItemManager.Instance.InitBeckhoffItem(key, item.Address, item.DataType, "do", 1, item.BitOperated, item.Bit, item.Invert);
                        BeckhoffItemManager.Instance.InitWriteBeckoffItem(key, item.Address, item.DataType, "do", 1, item.BitOperated, item.Bit, item.Invert);
                        _size++;
      
                    }
                }
            }
        }
        /// <summary>
        /// 写DO变量数值
        /// </summary>
        /// <param name="arg1"></param>
        /// <param name="args"></param>
        /// <returns></returns>
        public bool WriteDoOperation(string arg1, object[] args)
        {
            string moduleName = (string)args[0];
            bool setpoint = (bool)args[1];
            string IOName = BeckhoffModuleIOManager.Instance.GetIoNameByInnerModuleName(moduleName);
            BeckhoffItem item = BeckhoffItemManager.Instance.GetWriteBeckhoffItem(IOName);
            return TwincatAdoManager.Instance.WriteValue(IOName, setpoint);
        }
        
        /// <summary>
        /// 订阅IO集合
        /// </summary>
        private void SubscribeIoItemList()
        {
            if (!_ioItemList.ContainsKey(DI_ITEMLIST))
            {
                _ioItemList[DI_ITEMLIST] = new List<NotifiableIoItem>();
            }

            if (!_ioItemList.ContainsKey(DO_ITEMLIST))
            {
                _ioItemList[DO_ITEMLIST] = new List<NotifiableIoItem>();
            }
        }

        #region 获取Accessor和Item
        public BeckhoffDIAccessor GetDIAccessor(string name)
        {
            return _diMap.ContainsKey(name) ? _diMap[name] : null;
        }
        public BeckhoffDOAccessor GetDOAccessor(string name)
        {
            return _doMap.ContainsKey(name) ? _doMap[name] : null;
        }

        #endregion


        /// <summary>
        /// 注册变量数值发生变化回调
        /// </summary>
        /// <param name="moduleName"></param>
        /// <param name="variable"></param>
        /// <param name="onUpdateModuleVariableValue"></param>
        public void SubscribeModuleVariable(string moduleName, string variable, BeckhoffDelegate.OnUpdateModuleVariableValue onUpdateModuleVariableValue)
        {
            string name = $"{moduleName}.{variable}";
            _moduleVariableActionDic[name] = onUpdateModuleVariableValue;
            //根据模块变量名称获取相应的IO变量名称
            string ioName = BeckhoffModuleIOManager.Instance.GetIoNameByInnerModuleName(name);
            if (!string.IsNullOrEmpty(ioName))
            {
                if (_nameVariableValueDic.ContainsKey(ioName))
                {
                    _moduleVariableActionDic[name].Invoke(variable, _nameVariableValueDic[ioName]);
                }
            }
        }


        /// <summary>
        /// 更新IO数值
        /// </summary>
        /// <param name="name"></param>
        /// <param name="value"></param>
        public void UpdateIoValue(string name, object value)
        {
            _nameVariableValueDic[name] = value;
            //根据io变量名称获取模块变量名称
            string innerModuleName = BeckhoffModuleIOManager.Instance.GetInnerModuleNameByIOName(name);
            if (!string.IsNullOrEmpty(innerModuleName))
            {
                if (_moduleVariableActionDic.ContainsKey(innerModuleName))
                {
                    string[] strAry = innerModuleName.Split('.');
                    if (strAry.Length != 0)
                    {
                        _moduleVariableActionDic[innerModuleName].Invoke(strAry[strAry.Length - 1], value);
                    }
                }
            }
        }
    }
}