using System.Text.RegularExpressions;
using System.Web;
using Common;
using Infrastructure;
using Jint;
using LitJson;
using Model;
using Model.Custom;
using Model.Source;

namespace Util.Logic
{
    public class LogicNodeHelper
    {
        /// <summary>
        /// 如果-否则节点
        /// </summary>
        /// <param name="node">节点数据</param>
        /// <param name="paramList">参数列表</param>
        /// <param name="parentNodeParamList">父节点参数列表</param>
        public static List<bool> ifElse(NodeList node, List<ParamList> paramList, List<LogItem> logDic)
        {
            Dictionary<string, object> condi = new Dictionary<string, object>(); // 条件参数字典
            List<bool> ifElseResult = new List<bool>(); // 如果-否则节点结果
            JsonData nodeData = node.nodeData;
            JsonData ifCondition = nodeData["data"]["formData"]["ifelse"]["value"]; // 如果条件
            string paramAttribute = "";
            if (nodeData.ToJson().Contains("\"parentNode\""))
            {
                paramAttribute = "iterationInputField";
            }
            else
            {
                paramAttribute = "";
            }
            int ifIndex = 0; // 如果条件索引
            foreach (JsonData item in ifCondition)
            {
                string conditionExpression = ""; // 条件表达式
                string conditionExpressionLog = ""; // 条件表达式日志
                string logicTag = item["logic"].ToString(); // 逻辑
                JsonData conditions = item["conditions"]; // 条件
                foreach (JsonData condition in conditions)
                {
                    string oper = condition["operator"].ToString(); // 运算符
                    string value = condition["value"].ToString(); // 值
                    string variable = condition["variable"].ToString(); // 变量
                    if (variable.Contains("."))
                    {
                        string nodeId = variable.Substring(0, variable.IndexOf(":"));
                        variable = variable.Substring(variable.LastIndexOf(".") + 1);
                        if(variable.EndsWith("_Init"))
                        {
                            variable = variable.Replace("_Init", "");
                        }
                        ParamList param = paramList.FirstOrDefault(x => x.paramName == variable && x.nodeId == nodeId) ?? paramList.FirstOrDefault(x => x.paramName == variable) ?? new ParamList();
                        if (!string.IsNullOrEmpty(param.paramName))
                        {
                            // string paramValue = param.paramValueTransfer;
                            value = LogicHelper.MatchExpressionVal(value);
                            if(value.Contains("."))
                            {
                                string nId = value.Substring(0, value.IndexOf(":"));
                                value = value.Substring(value.LastIndexOf(".") + 1);
                                if(value.EndsWith("_Init"))
                                {
                                    value = value.Replace("_Init", "");
                                }
                                var paramc = paramList.FirstOrDefault(x => x.paramName == value && x.nodeId == nId);
                                if (paramc != null)
                                {
                                    value = paramc.paramValueTransfer;
                                }
                            }
                            string paramType = param.paramType;
                            conditionExpression += operatorTransfer(param, oper, value);
                            conditionExpressionLog += operatorTransfer(param, oper, value, true);
                            if (logicTag == "and")
                            {
                                conditionExpression += " && ";
                                conditionExpressionLog += " && ";
                                continue;
                            }
                            else if (logicTag == "or")
                            {
                                conditionExpression += " || ";
                                conditionExpressionLog += " || ";
                                continue;
                            }
                        }
                        else
                        {
                            conditionExpression += "false"; // 如果参数未找到，则条件表达式为false
                            conditionExpressionLog += "false"; // 如果参数未找到，则条件表达式为false
                            if (logicTag == "and")
                            {
                                conditionExpression += " && ";
                                conditionExpressionLog += " && ";
                            }
                            else if (logicTag == "or")
                            {
                                conditionExpression += " || ";
                                conditionExpressionLog += " || ";
                            }
                        }
                    }
                }
                if (conditionExpression.EndsWith(" && ") || conditionExpression.EndsWith(" || "))
                {
                    conditionExpression = conditionExpression.Substring(0, conditionExpression.Length - 4);
                }
                if (conditionExpressionLog.EndsWith(" && ") || conditionExpressionLog.EndsWith(" || "))
                {
                    conditionExpressionLog = conditionExpressionLog.Substring(0, conditionExpressionLog.Length - 4);
                }
                bool conditionResult = Utils.EvaluateBoolean(conditionExpression);
                ifElseResult.Add(conditionResult);
                condi.Add("条件" + ifIndex, conditionExpressionLog);
                condi.Add("结果" + ifIndex, conditionResult);
                ifIndex += 1;
            }

            // 记录日志
            logDic.Add(new LogItem()
            {
                title = node.nodeData["data"]["nodeMeta"]["label"].ToString(),
                param = condi
            });
            return ifElseResult;
        }


        /// <summary>
        /// 循环节点
        /// </summary>
        /// <param name="node">节点数据</param>
        /// <param name="paramList">参数列表</param>
        public static List<Dictionary<string, object>> loop(NodeList node, List<ParamList> paramList, List<LogItem> logDic)
        { 
            JsonData nodeData = node.nodeData;
            JsonData inputField = nodeData["data"]["formData"]["loopVar"]["value"];
            if(inputField.Count > 0)
            {
                string paramType = inputField[0]["type"][0].ToString(); // 字段类型
                if(paramType == "array")
                {
                    string paramValue = inputField[0]["value"].ToString(); // 字段值
                    Dictionary<string, object> condi = new Dictionary<string, object>(); // 条件参数字典
                    if(paramValue.Contains("."))
                    {
                        paramValue = paramValue.Substring(paramValue.LastIndexOf(".") + 1);
                        var param = paramList.FirstOrDefault(x => x.paramName == paramValue);
                        if (param != null)
                        {
                            paramValue = param.paramValueTransfer;
                        }
                    }
                    condi.Add("循环来源", paramValue);
                    List<Dictionary<string, object>> loopResult = Newtonsoft.Json.JsonConvert.DeserializeObject<List<Dictionary<string, object>>>(paramValue) ?? new List<Dictionary<string, object>>();
                    logDic.Add(new LogItem()
                    {
                        title = node.nodeData["data"]["nodeMeta"]["label"].ToString(),
                        param = condi
                    });
                    return loopResult;
                }
            }
            return new List<Dictionary<string, object>>();
        }
        /// <summary>
        /// 迭代节点
        /// </summary>
        /// <param name="node">节点数据</param>
        /// <param name="paramList">参数列表</param>
        public static void iteration(NodeList node, List<ParamList> paramList, List<LogItem> logDic)
        {
            JsonData nodeData = node.nodeData;
            string inputField = nodeData["data"]["formData"]["input"]["value"]?.ToString() ?? string.Empty; // 迭代字段
            inputField = inputField.Substring(inputField.LastIndexOf(".") + 1);
            ParamList inputFieldParam = paramList.FirstOrDefault(x => x.paramName == inputField) ?? new ParamList(); // 迭代字段值
            var param = paramList.FirstOrDefault(x => x.paramName == inputField && x.paramAttribute == "iterationInputField");
            if(param == null)
            {
                paramList.Add(new ParamList()
                {
                    nodeId = node.nodeId,
                    paramAttribute = "iterationInputField",
                    paramName = inputFieldParam.paramName,
                    paramType = inputFieldParam.paramType,
                    paramValue = inputFieldParam.paramValue
                });
            }
            else
            {
                param.paramName = inputFieldParam.paramName;
                param.paramType = inputFieldParam.paramType;
                param.paramValue = inputFieldParam.paramValue;
            }
        }
        /// <summary>
        /// 迭代子流程起始节点
        /// </summary>
        /// <param name="node"></param>
        /// <param name="paramList"></param>
        public static void iterationChildStart(NodeList node, List<ParamList> paramList, List<LogItem> logDic)
        { 
            Dictionary<string, object> condi = new Dictionary<string, object>(); // 条件参数字典
            JsonData nodeData = node.nodeData;
            string inputField = nodeData["data"]["formData"]["input"]["value"]?.ToString() ?? string.Empty; // 迭代字段
            inputField = inputField.Substring(inputField.LastIndexOf(".") + 1);
            ParamList inputFieldParam = paramList.FirstOrDefault(x => x.paramName == inputField) ?? new ParamList(); // 迭代字段值
            bool iterationInputFieldCheck = paramList.Any(x => x.paramName == inputField && x.paramAttribute == "iterationInputField");
            if(!iterationInputFieldCheck)
            {
                paramList.Add(new ParamList()
                {
                    nodeId = node.nodeId,
                    paramAttribute = "iterationInputField",
                    paramName = inputFieldParam.paramName,
                    paramType = inputFieldParam.paramType,
                    paramValue = inputFieldParam.paramValue
                });
                condi.Add(inputFieldParam.paramName, inputFieldParam.paramValue);
            }

            logDic.Add(new LogItem()
            {
                title = node.nodeData["data"]["nodeMeta"]["label"].ToString(),
                param = condi
            });
        }
        /// <summary>
        /// 跳出循环节点
        /// </summary>
        /// <param name="node"></param>
        /// <param name="paramList"></param>
        public static void iterationBreak(NodeList node, string requestId, List<LogItem> logDic)
        { 
            string parentNodeId = node.nodeData["parentNode"]?.ToString() ?? string.Empty;
            RedisServer.Cache.Set("break_" + requestId + "_" + parentNodeId, "1", 60); // 设置循环跳出标志，过期时间10分钟
            logDic.Add(new LogItem()
            {
                title = node.nodeData["data"]["nodeMeta"]["label"].ToString(),
                detail = "跳出循环"
            });
        }

        /// <summary>
        /// 代码执行节点
        /// </summary>
        /// <param name="node"></param>
        /// <param name="paramList"></param>
        public static void codeExecute(NodeList node, List<ParamList> paramList, List<LogItem> logDic)
        { 
            Dictionary<string, object> condi = new Dictionary<string, object>(); // 条件参数字典
            JsonData nodeData = node.nodeData;
            JsonData inputParam = nodeData["data"]["formData"]["code"]["value"]["inputVar"]; // 输出参数
            Dictionary<string, string> inputDic = new Dictionary<string, string>();
            foreach (JsonData param in inputParam)
            {
                string paramName = param["label"].ToString(); // 字段名
                string paramValue = param["value"].ToString(); // 字段值
                if(paramValue.Contains("."))
                {
                    string nId = paramValue.Substring(0, paramValue.IndexOf(":"));
                    paramValue = paramValue.Substring(paramValue.LastIndexOf(".") + 1);
                    if (paramValue.EndsWith("_Init"))
                    {
                        paramValue = paramValue.Replace("_Init", "");
                    }
                    var paramc = paramList.FirstOrDefault(x => x.paramName == paramValue && x.nodeId == nId);
                    if (paramc != null)
                    {
                        paramValue = paramc.paramValueTransfer;
                    }
                }
                inputDic.Add(paramName, paramValue);
            }
            string code = nodeData["data"]["formData"]["code"]["value"]["code"]["content"].ToString(); // 代码
            JsonData outputParam = nodeData["data"]["formData"]["output"]["value"]; // 输出参数
            var engine = new Engine();
            MatchCollection mc = Regex.Matches(code, "\\$\\{.*?\\}");
            foreach(Match m in mc)
            {
                string field = m.Value.Replace("${", "").Replace("}", "");
                code = code.Replace("${" + field + "}", inputDic[field]);
                code = code.Replace("{" + field + "}", inputDic[field]);
            }
            engine.Execute(code);
            foreach (JsonData param in outputParam)
            {
                string paramName = param["label"].ToString(); // 字段名
                if (paramName.EndsWith("_Init"))
                {
                    paramName = paramName.Replace("_Init", "");
                }
                string paramValue = engine.GetValue(paramName).ToString();
                var paramItem = paramList.FirstOrDefault(x => x.paramName == paramName);
                if(paramItem != null)
                {
                    Utils.WriteLog("代码执行1:" + paramValue + ";");
                    paramItem.paramValue = paramValue;
                }
                else
                {
                    Utils.WriteLog("代码执行2:" + node.nodeId + "-" + paramValue + ";");
                    paramList.Add(new ParamList()
                    {
                        nodeId = node.nodeId,
                        paramName = paramName,
                        paramValue = paramValue,
                        paramType = param["type"][0].ToString(),
                    });
                }
                condi.Add(paramName, paramValue);
            }
            Utils.WriteLog("代码执行:" + JsonMapper.ToJson(condi) + ";");
            logDic.Add(new LogItem()
            {
                title = node.nodeData["data"]["nodeMeta"]["label"].ToString(),
                param = condi,
                detail = HttpUtility.UrlEncode(code)
            });
        }

        /// <summary>
        /// 变量聚合节点
        /// </summary>
        /// <param name="node">节点数据</param>
        /// <param name="paramList">参数列表</param>
        /// <param name="parentNodeParamList">父节点参数列表</param>
        public static void varAggregate(NodeList node, List<ParamList> paramList, List<LogItem> logDic)
        {
            Dictionary<string, object> condi = new Dictionary<string, object>(); // 条件参数字典
            JsonData nodeData = node.nodeData;
            JsonData aggregateFields = nodeData["data"]["formData"]["output"]["value"]; // 聚合字段
            string paramAttribute = "";
            if (nodeData.ToJson().Contains("\"parentNode\""))
            {
                paramAttribute = "iterationInputField";
            }
            foreach (JsonData item in aggregateFields)
            {
                string paramName = item["label"].ToString(); // 聚合字段名
                bool updateFlag = true;
                if(paramName.EndsWith("_Init"))
                {
                    updateFlag = false;
                    paramName = paramName.Replace("_Init", "");
                }
                string paramValue = item["value"].ToString(); // 聚合字段值
                string nId = "";
                if (paramValue.Contains(":"))
                { 
                    nId = paramValue.Substring(0, paramValue.IndexOf(":"));
                }
                if(paramValue.Contains("."))
                {
                    paramValue = paramValue.Substring(paramValue.LastIndexOf(".") + 1);
                    var param = paramList.FirstOrDefault(x => x.paramName == paramValue && x.nodeId == nId) ?? paramList.FirstOrDefault(x => x.paramName == paramValue) ?? new ParamList();
                    paramValue = param.paramValue;
                }
                string paramType = item["type"][0].ToString(); // 聚合字段类型
                if(!paramList.Any(x => x.paramName == paramName && x.nodeId == nId))
                {
                    paramList.Add(new ParamList()
                    {
                        nodeId = node.nodeId,
                        paramAttribute = paramAttribute,
                        paramName = paramName,
                        paramValue = paramValue,
                        paramType = paramType
                    });
                    condi.Add(paramName, paramValue);
                }
                else
                {
                    var paramItem = paramList.FirstOrDefault(x => x.paramName == paramName && x.nodeId == nId) ?? paramList.FirstOrDefault(x => x.paramName == paramName) ?? new ParamList();
                    if (paramValue.StartsWith("+"))
                    {
                        int newValue = int.Parse(paramItem.paramValue) + int.Parse(paramValue.TrimStart('+'));
                        paramValue = newValue.ToString();
                    }
                    if(updateFlag)
                    {
                        paramItem.paramValue = paramValue;
                        condi.Add(paramName, paramValue);
                    }
                }
            }
            logDic.Add(new LogItem()
            {
                title = node.nodeData["data"]["nodeMeta"]["label"].ToString(),
                param = condi
            });
        }





        /// <summary>
        /// 运算符转换
        /// </summary>
        /// <param name="oper">运算符</param>
        /// <returns>转换后的运算符</returns>
        public static string operatorTransfer(ParamList param, string oper, string paramValue, bool isLog = false)
        {
            if(param.paramType == "number")
            {
                param.paramValue = Function.CheckNum(param.paramValue);
            }
            string condiLeftData = param.paramValue;
            if(isLog)
            {
                condiLeftData = param.paramName + "(" + param.paramValue + ")";
            }
            if (oper == "equal") //等于
            { 
                if(param.paramType == "string" || param.paramType == "time")
                {
                    return "'" + condiLeftData + "' == '" + paramValue + "'";
                }
                return condiLeftData + " == " + paramValue;
            }
            else if (oper == "not_equal") //不等于
            {
                if(param.paramType == "string" || param.paramType == "time")
                {
                    return "'" + condiLeftData + "' != '" + paramValue + "'";
                }
                return condiLeftData + " != " + paramValue;
            }
            else if (oper == "greater") //大于
            {
                return condiLeftData + " > " + paramValue;
            }
            else if (oper == "greater_equal") //大于等于
            {
                return condiLeftData + " >= " + paramValue;
            }
            else if (oper == "less") //小于
            {
                return condiLeftData + " < " + paramValue;
            }
            else if (oper == "less_equal") //小于等于
            {
                return condiLeftData + " <= " + paramValue;
            }
            else if (oper == "between") //在之间
            {
                string[] betweenValues = paramValue.Split(',');
                return condiLeftData + " >= " + betweenValues[0] + " && " + condiLeftData + " <= " + betweenValues[1];
            }
            else if (oper == "not_between") //不在之间
            {
                string[] betweenValues = paramValue.Split(',');
                return "(" + condiLeftData + " < " + betweenValues[0] + " || " + condiLeftData + " > " + betweenValues[1] + ")";
            }
            else if (oper == "contains") //包含
            {
                return "Contains('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "not_contains") //不包含
            {
                return "!Contains('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "starts_with") //以...开头
            {
                return "StartsWith('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "ends_with") //以...结尾
            {
                return "EndsWith('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "matches_regex") //匹配正则表达式
            {
                return "Match('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "not_matches_regex") //不匹配正则表达式
            {
                return "!Match('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "is_empty")
            {
                return "IsNullOrEmpty('" + condiLeftData + "')";
            }
            else if (oper == "is_not_empty") //不为空
            {
                return "!" + "IsNullOrEmpty('" + condiLeftData + "')";
            }
            else if (oper == "is_null") //为空
            {
                return "('" + condiLeftData + "'=='{}' || '" + condiLeftData + "'=='[]')";
            }
            else if (oper == "is_not_null") //不为空
            {
                return "('" + condiLeftData + "'!='{}' || '" + condiLeftData + "'!='[]')";
            }
            else if (oper == "in") //在...中
            {
                return "In('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "not_in") //不在...中
            {
                return "!In('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "array_contains") //数组包含
            {
                return "In('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "array_not_contains") //数组不包含 
            {
                return "!In('" + condiLeftData + "', '" + paramValue + "')";
            }
            else if (oper == "array_length_equal") //数组长度等于
            {
                return "ArrayLen('" + condiLeftData + "') == " + paramValue;
            }
            else if (oper == "array_length_greater")
            {
                return "ArrayLen('" + condiLeftData + "') > " + paramValue;
            }
            else if (oper == "array_length_less") //数组长度小于
            {
                return "ArrayLen('" + condiLeftData + "') < " + paramValue;
            }
            else if (oper == "is_true") //为真
            {
                return condiLeftData + " == true";
            }
            else if (oper == "is_false") //为假
            {
                return condiLeftData + " == false";
            }
            else if (oper == "date_equal") //日期等于
            {
                return "'" + condiLeftData + "' == '" + paramValue + "'";
            }
            else if (oper == "date_before") //日期之前
            {
                return "'" + condiLeftData + "' < '" + paramValue + "'";
            }
            else if (oper == "date_after") //日期之后
            {
                return "'" + condiLeftData + "' > '" + paramValue + "'";
            }
            else if (oper == "date_between") //日期之间
            {
                string[] betweenValues = paramValue.Split(" - ", StringSplitOptions.None);
                return "'" + condiLeftData + "' >= '" + betweenValues[0] + "' && '" + condiLeftData + "' <= '" + betweenValues[1] + "'";
            }
            return "";
        }
    
    }
}