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using System;
using System.IO;

using AwesomeAssertions;

using ICSharpCode.ILSpy.AppEnv;
using ICSharpCode.ILSpyX.Settings;

using NUnit.Framework;

namespace ICSharpCode.ILSpy.Tests.AppEnv;

// ConfigurationFiles.GetPath underpins where the dock layout and the bookmark list are
// stored: as JSON sidecars in the same directory as ILSpy.xml. These tests pin that
// "next to the settings file" contract and the headless fallback.
[TestFixture]
public class ConfigurationFilesTests
{
	Func<string>? savedProvider;

	[SetUp]
	public void SaveProvider() => savedProvider = ILSpySettings.SettingsFilePathProvider;

	[TearDown]
	public void RestoreProvider() => ILSpySettings.SettingsFilePathProvider = savedProvider;

	[Test]
	public void GetPath_returns_sidecar_in_settings_directory()
	{
		var settingsDir = Path.Combine(Path.GetTempPath(), "ILSpyConfigTest");
		ILSpySettings.SettingsFilePathProvider = () => Path.Combine(settingsDir, "ILSpy.xml");

		ConfigurationFiles.GetPath("ILSpy.Bookmarks.json")
			.Should().Be(Path.Combine(settingsDir, "ILSpy.Bookmarks.json"));
	}

	[Test]
	public void GetPath_falls_back_to_bare_name_when_provider_is_absent()
	{
		ILSpySettings.SettingsFilePathProvider = null;

		ConfigurationFiles.GetPath("ILSpy.Bookmarks.json").Should().Be("ILSpy.Bookmarks.json");
	}
}