Helpers/Export: Add Dto file export
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187
Elwig/Helpers/Export/Ods.cs
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187
Elwig/Helpers/Export/Ods.cs
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using Elwig.Models.Dtos;
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using System;
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using System.Collections.Generic;
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using System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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namespace Elwig.Helpers.Export {
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public class OdsFile : IDisposable, IAsyncDisposable {
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protected readonly string FileName;
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protected readonly ZipArchive ZipArchive;
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protected StreamWriter? Content;
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public OdsFile(string filename) {
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FileName = filename;
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File.Delete(filename);
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ZipArchive = ZipFile.Open(FileName, ZipArchiveMode.Create); ;
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Content = null;
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}
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public void Dispose() {
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DisposeAsync().GetAwaiter().GetResult();
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}
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public async ValueTask DisposeAsync() {
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await AddTrailer();
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Content?.Close();
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Content?.DisposeAsync();
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ZipArchive?.Dispose();
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GC.SuppressFinalize(this);
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}
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private async Task AddHeader() {
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var mimetype = ZipArchive.CreateEntry("mimetype", CompressionLevel.NoCompression);
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using (var stream = mimetype.Open()) {
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using var writer = new StreamWriter(stream, Utils.UTF8);
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await writer.WriteAsync("application/vnd.oasis.opendocument.spreadsheet");
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}
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var manifest = ZipArchive.CreateEntry("META-INF/manifest.xml");
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using (var stream = manifest.Open()) {
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using var writer = new StreamWriter(stream, Utils.UTF8);
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await writer.WriteAsync("""
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.3">
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<manifest:file-entry manifest:full-path="/" manifest:version="1.3" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>
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<manifest:file-entry manifest:full-path="content.xml" manifest:media-type="text/xml"/>
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<manifest:file-entry manifest:full-path="styles.xml" manifest:media-type="text/xml"/>
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<manifest:file-entry manifest:full-path="meta.xml" manifest:media-type="text/xml"/>
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</manifest:manifest>
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""");
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}
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var styles = ZipArchive.CreateEntry("styles.xml");
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using (var stream = styles.Open()) {
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using var writer = new StreamWriter(stream, Utils.UTF8);
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await writer.WriteAsync("""
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<office:document-styles xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" office:version="1.3">
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<office:styles>
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<style:default-style style:family="table-cell">
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<style:text-properties fo:language="de" fo:country="AT"/>
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</style:default-style>
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<style:style style:name="default" style:family="table-cell">
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<style:table-cell-properties style:vertical-align="top"/>
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</style:style>
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<style:style style:name="header" style:family="table-cell" style:parent-style-name="default">
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<style:table-cell-properties style:text-align-source="fix" style:repeat-content="false"/>
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<style:paragraph-properties fo:text-align="center"/>
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<style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold" fo:font-size="16pt"/>
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</style:style>
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<style:style style:name="th" style:family="table-cell" style:parent-style-name="default">
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<style:table-cell-properties style:text-align-source="fix" style:repeat-content="false"/>
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<style:paragraph-properties fo:text-align="center"/>
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<style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold"/>
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</style:style>
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</office:styles>
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</office:document-styles>
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""");
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}
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var meta = ZipArchive.CreateEntry("meta.xml");
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using (var stream = meta.Open()) {
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using var writer = new StreamWriter(stream, Utils.UTF8);
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var now = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ");
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await writer.WriteAsync($"""
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" office:version="1.3">
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<office:meta>
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<meta:generator>Elwig {App.Version}</meta:generator>
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<meta:initial-creator>Elwig</meta:initial-creator>
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<dc:creator>Elwig</dc:creator>
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<meta:creation-date>{now}</meta:creation-date>
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<dc:date>{now}</dc:date>
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</office:meta>
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</office:document-meta>
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""");
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}
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var content = ZipArchive.CreateEntry("content.xml");
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Content = new StreamWriter(content.Open(), Utils.UTF8);
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await Content.WriteAsync("""
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<office:document-content xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" office:version="1.3">
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<office:body>
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<office:spreadsheet>
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<table:calculation-settings table:case-sensitive="false" table:search-criteria-must-apply-to-whole-cell="true" table:use-wildcards="true" table:use-regular-expressions="false" table:automatic-find-labels="false"/>
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""");
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}
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private async Task AddTrailer() {
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if (Content == null) await AddHeader();
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if (Content == null) return;
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await Content.WriteAsync(" </office:spreadsheet>\r\n </office:body>\r\n</office:document-content>\r\n");
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}
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public async Task AddTable<T>(DataTable<T> table) {
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if (Content == null) await AddHeader();
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if (Content == null) return;
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var totalSpan = table.ColumnSpans.Sum(s => s.Item2);
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await Content.WriteAsync(
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$" <table:table table:name=\"{table.FullName}\">\r\n" +
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$" <table:table-column table:default-cell-style-name=\"default\"/>\r\n" +
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$" <table:table-row>\r\n" +
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FormatCell(table.FullName, colSpan: totalSpan, style: "header") +
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$" </table:table-row>\r\n" +
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$" <table:table-row>\r\n" +
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$" <table:table-cell table:number-columns-repeated=\"{totalSpan}\"/>\r\n" +
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$" </table:table-row>\r\n" +
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$" <table:table-row>\r\n");
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foreach (var (name, span) in table.ColumnSpans) {
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await Content.WriteAsync(FormatCell(name, colSpan: span, style: "th"));
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}
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await Content.WriteAsync(" </table:table-row>\r\n");
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foreach (var row in table.GetData()) {
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await FormatRow(row);
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}
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await Content.WriteAsync(" </table:table>\r\n");
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}
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protected async Task FormatRow(IEnumerable<object?> row) {
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if (Content == null) throw new InvalidOperationException();
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var arrays = row.Where(c => c is Array).Cast<Array>().Select(c => c.Length).ToArray();
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int rowNum = Math.Max(1, arrays.Length > 0 ? arrays.Max() : 0);
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for (int i = 0; i < rowNum; i++) {
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await Content.WriteAsync(" <table:table-row>\r\n");
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foreach (var data in row) {
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if (data is Array a) {
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await Content.WriteAsync(i < a.Length ? FormatCell(a.GetValue(i)) : " <table:table-cell/>\r\n");
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} else {
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await Content.WriteAsync(i == 0 ? FormatCell(data, rowNum) : " <table:covered-table-cell/>\r\n");
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}
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}
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await Content.WriteAsync(" </table:table-row>\r\n");
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}
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}
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protected static string FormatCell(object? data, int rowSpan = 1, int colSpan = 1, string? style = "default", bool forceString = false) {
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if (data?.GetType().IsValueType == true && data.GetType().Name.StartsWith("ValueTuple"))
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return string.Join("", data.GetType().GetFields().Select(p => FormatCell(p.GetValue(data), rowSpan, colSpan, style, forceString)));
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var add = (style != null ? $" table:style-name=\"{style}\"" : "") + (rowSpan > 1 || colSpan > 1 ? $" table:number-rows-spanned=\"{rowSpan}\" table:number-columns-spanned=\"{colSpan}\"" : "");
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string c;
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if (!forceString && data == null) {
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c = $"<table:table-cell{add}/>";
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} else if (!forceString && (data is float || data is double || data is byte || data is char ||
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data is short || data is ushort || data is int || data is uint || data is long || data is ulong)) {
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c = $"<table:table-cell office:value-type=\"float\" office:value=\"{data.ToString()?.Replace(",", ".")}\"{add}><text:p>{data}</text:p></table:table-cell>";
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} else {
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c = $"<table:table-cell office:value-type=\"string\"{add}><text:p>{data}</text:p></table:table-cell>";
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}
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return c = $" {c}\r\n" + (colSpan > 1 ? $" <table:covered-table-cell table:number-rows-repeated=\"{colSpan - 1}\"/>\r\n" : "");
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}
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}
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}
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