/**
 *
 * @author    seagle
 * @date      2024-7-22
 * @Description 脚本访问代码中数据中心变量的方法
 */
using MECF.Framework.Common.Equipment;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MECF.Framework.UI.Core.DxfScript
{
    public class ScriptVariables
    {
        private static SubscriptionManager subscriptionManager = new SubscriptionManager();
        public static Dictionary<string, Variable> fakeVariables { get; set; } = new Dictionary<string, Variable>();
        /// <summary>
        /// 是否请求数据
        /// </summary>
        public static bool IsFetchRT { get; set; } = true;
        /// <summary>
        /// 获取Variable类型
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static VariableDataType GetVariableDataTypeByName(string name)
        {

            EnsureVariableIsUpToDate(name);
            return fakeVariables[name].DataType;
        }
        /// <summary>
        /// 根据变量名称获取boo值
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        /// <exception cref="Exception"></exception>
        public static bool GetBoolByName(string name)
        {

            EnsureVariableIsUpToDate(name);
            if (fakeVariables[name].DataType == VariableDataType.BOOL)
            {
                return fakeVariables[name].BoolValue;
            }
            return false;
        }
        /// <summary>
        /// 根据变量名称获取double值
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        /// <exception cref="Exception"></exception>
        public static double GetDoubleByName(string name)
        {

            EnsureVariableIsUpToDate(name);
            if (fakeVariables[name].DataType == VariableDataType.DOUBLE)
            {
                return fakeVariables[name].DoubleValue;
            }
            return 0.00;
        }
        /// <summary>
        /// 根据变量名称获取string值
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        /// <exception cref="Exception"></exception>
        public static string GetStringByName(string name)
        {

            EnsureVariableIsUpToDate(name);
            if (fakeVariables[name].DataType == VariableDataType.STRING)
            {
                return fakeVariables[name].StringValue;
            }
            return "";
        }
        /// <summary>
        /// 设置静态变量池bool值
        /// </summary>
        /// <param name="name"></param>
        /// <param name="value"></param>
        /// <exception cref="Exception"></exception>
        public static void SetBoolByName(string name, bool value)
        {
            if (fakeVariables.ContainsKey(name) && fakeVariables[name].DataType == VariableDataType.BOOL)
            {
                fakeVariables[name].BoolValue = value;
                subscriptionManager.Subscribe(name, value); // 更新 SubscriptionManager 中的数据
            }
            else
            {
                throw new Exception($"Boolean variable '{name}' not found.");
            }

        }/// <summary>
         /// 设置静态变量池double值
         /// </summary>
         /// <param name="name"></param>
         /// <param name="value"></param>
         /// <exception cref="Exception"></exception>
        public static void SetDoubleByName(string name, double value)
        {
            if (fakeVariables.ContainsKey(name) && fakeVariables[name].DataType == VariableDataType.DOUBLE)
            {
                fakeVariables[name].DoubleValue = value;
                subscriptionManager.Subscribe(name, value); // 更新 SubscriptionManager 中的数据
            }
            else
            {
                throw new Exception($"Double variable '{name}' not found.");
            }
        }

        /// <summary>
        /// 设置string值
        /// </summary>
        /// <param name="name"></param>
        /// <param name="value"></param>
        /// <exception cref="Exception"></exception>
        public static void SetStringByName(string name, string value)
        {
            if (fakeVariables.ContainsKey(name) && fakeVariables[name].DataType == VariableDataType.STRING)
            {
                fakeVariables[name].StringValue = value;
                subscriptionManager.Subscribe(name, value); // 更新 SubscriptionManager 中的数据
            }
            else
            {
                throw new Exception($"String variable '{name}' not found.");
            }

        }
        /// <summary>
        /// 变量池中是否包含该变量
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static bool ContainsVariable(string name)
        {

            EnsureVariableIsUpToDate(name);
            return fakeVariables.ContainsKey(name);
        }
        /// <summary>
        /// 根据变量名称返回Variable
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static Variable GetVariableByName(string name)
        {


            EnsureVariableIsUpToDate(name);
            if (ContainsVariable(name))
            {
                return fakeVariables[name];
            }
            return null;
        }
        /// <summary>
        /// 通过调用 SubscriptionManager 的 GetVariableValue 方法来获取最新的变量值，并更新 fakeVariables 字典中的变量值。
        /// </summary>
        /// <param name="name"></param>
        private static void EnsureVariableIsUpToDate(string name)
        {
            if (string.IsNullOrEmpty(name)) return;

        
            if (!IsFetchRT)
            {
                return;
            }

            var value = subscriptionManager.GetData(name);
            if (value == null) return;
            if (fakeVariables.TryGetValue(name, out var variable))
            {
                switch (variable.DataType)
                {
                    case VariableDataType.BOOL:
                        variable.BoolValue = Convert.ToBoolean(value);
                        break;
                    case VariableDataType.DOUBLE:
                        variable.DoubleValue = Convert.ToDouble(value);
                        break;
                    case VariableDataType.STRING:
                        variable.StringValue = Convert.ToString(value);
                        break;
                }
            }
            else
            {
                // 如果变量不存在，重新订阅并写入
                subscriptionManager.ReSubscribeAndWrite(name);
            }
        }
        public static void InitializeDefaultSubscriptions(Dictionary<string, object> initialData)
        {

            foreach (var item in initialData)
            {
                subscriptionManager.Subscribe(item.Key, item.Value);
            }
        }


    }
}