From 8509f04d4daa48cf2158ab86e0c5773982da4272 Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Mon, 13 Nov 2023 19:22:21 +0100
Subject: [PATCH] Ods: Add settings.xml

---
 Elwig/Helpers/Export/Ods.cs | 78 +++++++++++++++++++++++++++----------
 1 file changed, 58 insertions(+), 20 deletions(-)

diff --git a/Elwig/Helpers/Export/Ods.cs b/Elwig/Helpers/Export/Ods.cs
index 04d5e7c..85fc64a 100644
--- a/Elwig/Helpers/Export/Ods.cs
+++ b/Elwig/Helpers/Export/Ods.cs
@@ -1,4 +1,5 @@
 using Elwig.Models.Dtos;
+using ScottPlot;
 using System;
 using System.Collections.Generic;
 using System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder;
@@ -6,44 +7,36 @@ using System.IO;
 using System.IO.Compression;
 using System.Linq;
 using System.Threading.Tasks;
-using System.Windows;
 
 namespace Elwig.Helpers.Export {
-    public class OdsFile : IDisposable, IAsyncDisposable {
+    public class OdsFile : IDisposable {
 
         protected readonly string FileName;
         protected readonly ZipArchive ZipArchive;
         protected StreamWriter? Content;
+        private readonly List<string> _tables;
 
         public OdsFile(string filename) {
             FileName = filename;
             File.Delete(filename);
-            ZipArchive = ZipFile.Open(FileName, ZipArchiveMode.Create); ;
-            Content = null;
+            ZipArchive = ZipFile.Open(FileName, ZipArchiveMode.Create);
+            _tables = new List<string>();
         }
 
         public void Dispose() {
-            DisposeAsync().GetAwaiter().GetResult();
-        }
-
-        public async ValueTask DisposeAsync() {
-            await AddTrailer();
-            Content?.Close();
-            Content?.DisposeAsync();
+            AddTrailer().GetAwaiter().GetResult();
             ZipArchive?.Dispose();
             GC.SuppressFinalize(this);
         }
 
         private async Task AddHeader() {
             var mimetype = ZipArchive.CreateEntry("mimetype", CompressionLevel.NoCompression);
-            using (var stream = mimetype.Open()) {
-                using var writer = new StreamWriter(stream, Utils.UTF8);
+            using (var writer = new StreamWriter(mimetype.Open(), Utils.UTF8)) {
                 await writer.WriteAsync("application/vnd.oasis.opendocument.spreadsheet");
             }
 
             var manifest = ZipArchive.CreateEntry("META-INF/manifest.xml");
-            using (var stream = manifest.Open()) {
-                using var writer = new StreamWriter(stream, Utils.UTF8);
+            using (var writer = new StreamWriter(manifest.Open(), Utils.UTF8)) {
                 await writer.WriteAsync("""
                     <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
                     <manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.3">
@@ -51,14 +44,14 @@ namespace Elwig.Helpers.Export {
                      <manifest:file-entry manifest:full-path="content.xml" manifest:media-type="text/xml"/>
                      <manifest:file-entry manifest:full-path="styles.xml" manifest:media-type="text/xml"/>
                      <manifest:file-entry manifest:full-path="meta.xml" manifest:media-type="text/xml"/>
+                     <manifest:file-entry manifest:full-path="settings.xml" manifest:media-type="text/xml"/>
                     </manifest:manifest>
 
                     """);
             }
 
             var styles = ZipArchive.CreateEntry("styles.xml");
-            using (var stream = styles.Open()) {
-                using var writer = new StreamWriter(stream, Utils.UTF8);
+            using (var writer = new StreamWriter(styles.Open(), Utils.UTF8)) {
                 await writer.WriteAsync("""
                     <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
                     <office:document-styles xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" office:version="1.3">
@@ -68,8 +61,7 @@ namespace Elwig.Helpers.Export {
             }
 
             var meta = ZipArchive.CreateEntry("meta.xml");
-            using (var stream = meta.Open()) {
-                using var writer = new StreamWriter(stream, Utils.UTF8);
+            using (var writer = new StreamWriter(meta.Open(), Utils.UTF8)) {
                 var now = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ");
                 await writer.WriteAsync($"""
                     <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
@@ -119,7 +111,51 @@ namespace Elwig.Helpers.Export {
         private async Task AddTrailer() {
             if (Content == null) await AddHeader();
             if (Content == null) return;
-            await Content.WriteAsync("   </office:spreadsheet>\r\n </office:body>\r\n</office:document-content>\r\n");
+
+            await Content.WriteAsync("""
+                  </office:spreadsheet>
+                 </office:body>
+                </office:document-content>
+
+                """);
+            Content.Close();
+            Content.Dispose();
+            Content = null;
+
+            var settings = ZipArchive.CreateEntry("settings.xml");
+            using (var writer = new StreamWriter(settings.Open(), Utils.UTF8)) {
+                await writer.WriteAsync("""
+                    <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+                    <office:document-settings xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ooo="http://openoffice.org/2004/office" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" office:version="1.3">
+                     <office:settings>
+                      <config:config-item-set config:name="ooo:view-settings">
+                       <config:config-item-map-indexed config:name="Views">
+                        <config:config-item-map-entry>
+                         <config:config-item-map-named config:name="Tables">
+
+                    """);
+
+                foreach (var tbl in _tables) {
+                    await writer.WriteAsync($"""
+                              <config:config-item-map-entry config:name="{tbl}">
+                               <config:config-item config:name="VerticalSplitMode" config:type="short">2</config:config-item>
+                               <config:config-item config:name="VerticalSplitPosition" config:type="int">3</config:config-item>
+                               <config:config-item config:name="PositionBottom" config:type="int">3</config:config-item>
+                              </config:config-item-map-entry>
+
+                        """);
+                }
+
+                await writer.WriteAsync("""
+                         </config:config-item-map-named>
+                        </config:config-item-map-entry>
+                       </config:config-item-map-indexed>
+                      </config:config-item-set>
+                     </office:settings>
+                    </office:document-settings>
+
+                    """);
+            }
         }
 
         public async Task AddTable<T>(DataTable<T> table) {
@@ -127,6 +163,8 @@ namespace Elwig.Helpers.Export {
             if (Content == null) return;
             var totalSpan = table.ColumnSpans.Sum(s => s.Item2);
 
+            _tables.Add(table.FullName);
+
             await Content.WriteAsync(
                 $"    <table:table table:name=\"{table.FullName}\">\r\n" +
                 $"     <table:table-column table:default-cell-style-name=\"default\"/>\r\n" +