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@@ -1,8 +1,10 @@
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using JLHHJSvr.Com.Model;
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using JLHHJSvr.LJException;
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using JLHHJSvr.LJFramework.Tools;
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+using NPOI.SS.Formula;
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using System;
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using System.Collections.Generic;
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+using System.Data;
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using System.Linq;
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using System.Text.RegularExpressions;
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@@ -10,8 +12,8 @@ namespace JLHHJSvr.Tools
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{
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public class CalculateFormula
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{
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- private HashSet<FormulaItem> _formula;
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- private HashSet<FormulaItem> _const;
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+ private HashSet<FormulaItem> _formula; // 公式
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+ private HashSet<FormulaItem> _const; // 常量
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public CalculateFormula()
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{
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@@ -43,27 +45,110 @@ namespace JLHHJSvr.Tools
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public void AddFormulaItem(string name, string formula)
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{
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- var formulaItem = new FormulaItem() { formula_name = name, formula = formula }
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+ var formulaItem = new FormulaItem() { formula_name = name, formula = formula };
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AddFormulaItem(formulaItem);
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+ }
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- BuildFormulaGraph(formulaItem);
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+ /// <summary>
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+ /// 主计算入口
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+ /// </summary>
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+ public void CalculateAll()
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+ {
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+ var dict = _formula.ToDictionary(f => f.formula_name, f => f);
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+ foreach (var c in _const)
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+ {
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+ dict[c.formula_name] = c;
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+ }
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+
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+ var graph = BuildDependencyGraph(dict);
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+ var sorted = TopologicalSort(graph);
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+ foreach (var name in sorted)
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+ {
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+ var item = dict[name];
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+ item.formula = ConvertToEnglishSymbols(item.formula);
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+ // 展开
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+ string expanded = ExpandFormula(item.formula, dict);
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+ item.formula_transform = expanded;
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+ // 计算
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+ if (item.isSql) SqlCalculate(item);
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+ else Calculate(item);
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+ }
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}
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- // 构建拓扑图
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- private void BuildFormulaGraph(FormulaItem formula)
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+ /// <summary>
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+ /// 解析依赖
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+ /// </summary>
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+ private Dictionary<string, List<string>> BuildDependencyGraph(Dictionary<string, FormulaItem> dict)
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{
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- formula.graph = new List<string>();
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- // 定义正则表达式模式，匹配包含【】的内容
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- string pattern = @"【(.*?)】";
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- // 创建正则表达式对象
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- Regex regex = new Regex(pattern);
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- // 使用正则表达式匹配输入字符串
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- MatchCollection matches = regex.Matches(formula.formula);
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-
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- foreach (Match match in matches)
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+ var graph = new Dictionary<string, List<string>>();
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+
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+ foreach (var kv in dict)
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{
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- formula.graph.Add(match.Value);
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+ var deps = new List<string>();
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+
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+ foreach (var name in dict.Keys)
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+ {
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+ if (name == kv.Key) continue;
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+ if (Regex.IsMatch(kv.Value.formula, name))
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+ {
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+ deps.Add(name);
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+ }
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+ }
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+
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+ graph[kv.Key] = deps;
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}
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+
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+ return graph;
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+ }
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+
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+ /// <summary>
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+ /// 拓扑排序
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+ /// </summary>
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+ private List<string> TopologicalSort(Dictionary<string, List<string>> graph)
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+ {
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+ var result = new List<string>();
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+ var visited = new Dictionary<string, int>(); // 0=未访问,1=正在访问,2=已完成
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+
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+ foreach (var node in graph.Keys)
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+ {
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+ if (!visited.ContainsKey(node))
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+ {
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+ Dfs(node, graph, visited, result);
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+ }
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+ }
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+
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+ return result;
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+ }
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+
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+ private void Dfs(string node, Dictionary<string, List<string>> graph,Dictionary<string, int> visited, List<string> result)
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+ {
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+ if (visited.ContainsKey(node) && visited[node] == 1) throw new InvalidOperationException($"检测到循环依赖: {node}");
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+
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+ if (visited.ContainsKey(node) && visited[node] == 2) return;
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+
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+ visited[node] = 1;
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+ foreach (var dep in graph[node])
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+ {
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+ Dfs(dep, graph, visited, result);
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+ }
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+
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+ visited[node] = 2;
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+ result.Add(node);
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+ }
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+
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+ /// <summary>
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+ /// 展开公式，把变量替换为已计算的值
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+ /// </summary>
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+ private string ExpandFormula(string formula, Dictionary<string, FormulaItem> dict)
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+ {
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+ foreach (var kv in dict)
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+ {
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+ if (kv.Value.value != null) // 已经算过
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+ {
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+ formula = Regex.Replace(formula, $"【{kv.Key}】", kv.Value.value.ToString());
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+ }
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+ }
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+ return formula;
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}
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private string ConvertToEnglishSymbols(string input)
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@@ -81,10 +166,6 @@ namespace JLHHJSvr.Tools
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return input;
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}
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- private void FormatExpression(FormulaItem formula)
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- {
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- formula.formula = ConvertToEnglishSymbols(formula.formula);
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- }
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/// <summary>
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/// 公式计算
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/// </summary>
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@@ -93,8 +174,6 @@ namespace JLHHJSvr.Tools
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/// <returns></returns>
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private void Calculate(FormulaItem formula)
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{
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- FormatExpression(formula);
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-
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try
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{
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formula.value = LJExprParser.Parse(formula.formula).Result;
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@@ -112,8 +191,6 @@ namespace JLHHJSvr.Tools
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/// <returns></returns>
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private void SqlCalculate(FormulaItem formula)
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{
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- FormatExpression(formula);
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-
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try
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{
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//cmd.CommandText = $@"{formula.formula}";
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