From cf2a66e6a0aaf454ffd2bda99062376f017fc227 Mon Sep 17 00:00:00 2001
From: Rene Modery <rene@modery.net>
Date: Tue, 8 Nov 2022 11:57:47 +0800
Subject: [PATCH] Markdown Core

Core classes to support Markdown generation
---
 PowerDocu.Common/MarkdownBuilder.cs      | 132 +++++++++++++++++++++++
 PowerDocu.Common/OutputFormatHelper.cs   |  13 +++
 PowerDocu.Common/PowerDocu.Common.csproj |   4 +-
 3 files changed, 148 insertions(+), 1 deletion(-)
 create mode 100644 PowerDocu.Common/MarkdownBuilder.cs
 create mode 100644 PowerDocu.Common/OutputFormatHelper.cs

diff --git a/PowerDocu.Common/MarkdownBuilder.cs b/PowerDocu.Common/MarkdownBuilder.cs
new file mode 100644
index 0000000..cd69b04
--- /dev/null
+++ b/PowerDocu.Common/MarkdownBuilder.cs
@@ -0,0 +1,132 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace PowerDocu.Common
+{
+    public abstract class MarkdownBuilder
+    {
+        protected readonly Random random = new Random();
+        protected Dictionary<string, string> SVGImages;
+
+        protected string AddExpressionDetails(List<Expression> inputs)
+        {
+            StringBuilder tableSB = new StringBuilder("<table>");
+            foreach (Expression input in inputs)
+            {
+                StringBuilder operandsCellSB = new StringBuilder("<td>");
+
+                if (input.expressionOperands.Count > 1)
+                {
+                    StringBuilder operandsTableSB = new StringBuilder("<table>");
+                    foreach (object actionInputOperand in input.expressionOperands)
+                    {
+                        if (actionInputOperand.GetType() == typeof(Expression))
+                        {
+                            operandsTableSB.Append(AddExpressionTable((Expression)actionInputOperand, false));
+                        }
+                        else
+                        {
+                            operandsTableSB.Append("<tr><td>").Append(actionInputOperand.ToString()).Append("</td></tr>");
+                        }
+                    }
+                    operandsTableSB.Append("</table>");
+                    operandsCellSB.Append(operandsTableSB).Append("</td>");
+                }
+                else
+                {
+                    if (input.expressionOperands.Count > 0)
+                    {
+                        if (input.expressionOperands[0]?.GetType() == typeof(Expression))
+                        {
+                            operandsCellSB.Append(AddExpressionTable((Expression)input.expressionOperands[0]).Append("</table>"));
+                        }
+                        else
+                        {
+                            operandsCellSB.Append(input.expressionOperands[0]?.ToString());
+                        }
+                    }
+                    else
+                    {
+                        operandsCellSB.Append("");
+                    }
+                    operandsCellSB.Append("</td>");
+                }
+                tableSB.Append("<tr><td>").Append(input.expressionOperator).Append("</td>").Append(operandsCellSB).Append("</tr>");
+            }
+            tableSB.Append("</table>");
+            return tableSB.ToString();
+        }
+
+        protected StringBuilder AddExpressionTable(Expression expression, bool createNewTable = true, bool firstColumnBold = false)
+        {
+            StringBuilder table = createNewTable ? new StringBuilder("<table>") : new StringBuilder();
+
+            if (expression?.expressionOperator != null)
+            {
+                StringBuilder tr = new StringBuilder("<tr>");
+                StringBuilder tc = new StringBuilder("<td>");
+
+                if (firstColumnBold)
+                {
+                    tc.Append("<b>").Append(expression.expressionOperator).Append("</b>");
+                }
+                else
+                {
+                    tc.Append(expression.expressionOperator);
+                }
+                tr.Append(tc.Append("</td>"));
+                tc = new StringBuilder("<td>");
+                if (expression.expressionOperands.Count > 1)
+                {
+                    StringBuilder operandsTable = new StringBuilder("<table>");
+                    foreach (var expressionOperand in expression.expressionOperands.OrderBy(o => o.ToString()).ToList())
+                    {
+                        if (expressionOperand.GetType().Equals(typeof(string)))
+                        {
+                            operandsTable.Append("<tr><td>").Append((string)expressionOperand).Append("</td></tr>");
+                        }
+                        else if (expressionOperand.GetType().Equals(typeof(Expression)))
+                        {
+                            operandsTable.Append(AddExpressionTable((Expression)expressionOperand, false));
+                        }
+                        else
+                        {
+                            operandsTable.Append("<tr><td></td></tr>");
+                        }
+                    }
+                    tc.Append(operandsTable).Append("</table>");
+                }
+                else if (expression.expressionOperands.Count == 0)
+                {
+                    //nothing to do here
+                }
+                else
+                {
+                    object expo = expression.expressionOperands[0];
+                    if (expo.GetType().Equals(typeof(string)))
+                    {
+                        tc.Append((expression.expressionOperands.Count == 0) ? "" : expression.expressionOperands[0]?.ToString());
+                    }
+                    else
+                    {
+                        tc.Append(AddExpressionTable((Expression)expo, true));
+                    }
+                }
+                tr.Append(tc).Append("</td>");
+                table.Append(tr.Append("</tr>"));
+            }
+            if (createNewTable)
+            {
+                table.Append("</table>");
+            }
+            return table;
+        }
+
+        protected string getLinkFromText(string text)
+        {
+            return "#" + text.ToLower();
+        }
+    }
+}
\ No newline at end of file
diff --git a/PowerDocu.Common/OutputFormatHelper.cs b/PowerDocu.Common/OutputFormatHelper.cs
new file mode 100644
index 0000000..44a4065
--- /dev/null
+++ b/PowerDocu.Common/OutputFormatHelper.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace PowerDocu.Common
+{
+    public static class OutputFormatHelper
+    {
+        public static readonly string Word = "Word";
+        public static readonly string Markdown = "Markdown";
+        public static readonly string All = "All";
+    }
+}
\ No newline at end of file
diff --git a/PowerDocu.Common/PowerDocu.Common.csproj b/PowerDocu.Common/PowerDocu.Common.csproj
index 430e001..286b644 100644
--- a/PowerDocu.Common/PowerDocu.Common.csproj
+++ b/PowerDocu.Common/PowerDocu.Common.csproj
@@ -4,12 +4,14 @@
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <LangVersion>latest</LangVersion>
     <DebugType>embedded</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
+    <PlatformTarget>x64</PlatformTarget> 
   </PropertyGroup>
 
   <ItemGroup>
     <!-- To generate Word document -->
     <PackageReference Include="DocumentFormat.OpenXml" Version="2.14.0" />
+    <!-- To generate Markdown files -->
+    <PackageReference Include="Grynwald.MarkdownGenerator" Version="2.5.34" />
     <!-- For some of the JSON parsing -->
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <!-- to convert the SVG into a PNG -->