115 lines
4.4 KiB
C#
115 lines
4.4 KiB
C#
// Copyright (C) 2024 Intro-Skipper contributors <intro-skipper.org>
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// SPDX-License-Identifier: GPL-3.0-only.
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.Serialization;
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using System.Xml;
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using IntroSkipper.Data;
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namespace IntroSkipper.Helper
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{
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internal sealed class XmlSerializationHelper
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{
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public static void SerializeToXml<T>(T obj, string filePath)
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{
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// Create a FileStream to write the XML file
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using FileStream fileStream = new FileStream(filePath, FileMode.Create);
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// Create a DataContractSerializer for type T
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DataContractSerializer serializer = new DataContractSerializer(typeof(T));
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// Serialize the object to the FileStream
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serializer.WriteObject(fileStream, obj);
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}
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public static void MigrateFromIntro(string filePath)
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{
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List<Intro> intros = DeserializeFromXml<Intro>(filePath);
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ArgumentNullException.ThrowIfNull(intros);
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var segments = intros.Select(name => new Segment(name)).ToList();
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SerializeToXml(segments, filePath);
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}
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public static List<T> DeserializeFromXml<T>(string filePath)
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{
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var result = new List<T>();
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try
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{
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// Create a FileStream to read the XML file
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using FileStream fileStream = new FileStream(filePath, FileMode.Open);
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// Create an XmlDictionaryReader to read the XML
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XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(fileStream, new XmlDictionaryReaderQuotas());
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// Create a DataContractSerializer for type List<T>
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DataContractSerializer serializer = new DataContractSerializer(typeof(List<T>));
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// Deserialize the object from the XML
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result = serializer.ReadObject(reader) as List<T>;
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// Close the reader
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reader.Close();
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error deserializing XML: {ex.Message}");
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}
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ArgumentNullException.ThrowIfNull(result);
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// Return the deserialized object
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return result;
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}
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public static void MigrateXML(string filePath)
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{
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if (File.Exists(filePath))
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{
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try
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{
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// Load the XML document
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XmlDocument xmlDoc = new XmlDocument();
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xmlDoc.Load(filePath);
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ArgumentNullException.ThrowIfNull(xmlDoc.DocumentElement);
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// Check that the file has not already been migrated
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if (xmlDoc.DocumentElement.HasAttribute("xmlns:xsi"))
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{
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xmlDoc.DocumentElement.RemoveAttribute("xmlns:xsi");
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xmlDoc.DocumentElement.RemoveAttribute("xmlns:xsd");
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xmlDoc.DocumentElement.SetAttribute("xmlns", "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper");
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xmlDoc.DocumentElement.SetAttribute("xmlns:i", "http://www.w3.org/2001/XMLSchema-instance");
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// Save the modified XML document
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xmlDoc.Save(filePath);
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}
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// undo namespace change
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if (xmlDoc.DocumentElement.NamespaceURI == "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper.Data")
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{
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xmlDoc.DocumentElement.SetAttribute("xmlns", "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper");
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// Save the modified XML document
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xmlDoc.Save(filePath);
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}
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// intro -> segment migration
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if (xmlDoc.DocumentElement.NamespaceURI == "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper")
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{
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MigrateFromIntro(filePath);
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}
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}
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catch (XmlException ex)
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{
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Console.WriteLine($"Error deserializing XML: {ex.Message}");
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File.Delete(filePath);
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Console.WriteLine($"Deleting {filePath}");
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}
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}
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}
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}
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}
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