ProjectDefinitionProperties.cs

using RPGCore.Packages;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Xml;

namespace RPGCore.Projects;

public class ProjectDefinitionProperties : IDefinitionProperties
{
	private readonly FileInfo file;
	private readonly XmlDocument document;

	public string Name
	{
		get
		{
			string name = GetNodeForProperty("Name")?.InnerText;
			return name ?? file.Name.Replace(".bproj", "");
		}
		set => GetOrCreateNodeForProperty("Name").InnerText = value;
	}

	public string Version
	{
		get => GetNodeForProperty("Version")?.InnerText;
		set => GetOrCreateNodeForProperty("Version").InnerText = value;
	}

	public ProjectDefinitionProperties(FileInfo file, XmlDocument document)
	{
		this.file = file;
		this.document = document;
	}

	private XmlNode GetNodeForProperty(string name)
	{
		foreach (var propertyGroup in PropertyGroups())
		{
			var properties = propertyGroup.ChildNodes;
			for (int j = 0; j < properties.Count; j++)
			{
				var property = properties.Item(j);

				if (property.Name == name)
				{
					return property;
				}
			}
		}
		return null;
	}

	private XmlNode GetOrCreateNodeForProperty(string name)
	{
		var node = GetNodeForProperty(name);

		if (node != null)
		{
			return node;
		}

		var propertyGroup = PropertyGroups().FirstOrDefault();
		if (propertyGroup == null)
		{
			var prefix = document.CreateWhitespace("\n  ");
			document.DocumentElement.AppendChild(prefix);

			var newPropertyGroup = document.CreateElement("PropertyGroup", null);
			document.DocumentElement.AppendChild(newPropertyGroup);
			propertyGroup = newPropertyGroup;

			prefix = document.CreateWhitespace("\n\n");
			document.DocumentElement.AppendChild(prefix);
		}

		var whitespace = document.CreateWhitespace("\n    ");
		propertyGroup.AppendChild(whitespace);

		var propertyNode = document.CreateElement(name, null);
		propertyGroup.AppendChild(propertyNode);

		whitespace = document.CreateWhitespace("\n  ");
		propertyGroup.AppendChild(whitespace);

		return propertyNode;
	}

	private IEnumerable<XmlNode> PropertyGroups()
	{
		var rootNodes = document.DocumentElement.ChildNodes;
		for (int j = 0; j < rootNodes.Count; j++)
		{
			var property = rootNodes.Item(j);

			if (property.Name == "PropertyGroup")
			{
				yield return property;
			}
		}
	}
}