using System;
using Vanara.Network;
using NUnit.Framework;
using System.Text;
using Vanara.PInvoke;
using Vanara.PInvoke.Tests;

namespace Vanara.Network.Tests
{
	[TestFixture]
	public class InternetOptionsTests
	{
		[Test]
		public void AutomaticallyDetectSettingsTest()
		{
			using var inet = new InternetProxyOptions();

			var autoDetEnabled = inet.AutomaticallyDetectSettings;
			inet.AutomaticallyDetectSettings = !autoDetEnabled;
			Assert.That(inet.AutomaticallyDetectSettings, Is.EqualTo(!autoDetEnabled));
			inet.AutomaticallyDetectSettings = autoDetEnabled;
			Assert.That(inet.AutomaticallyDetectSettings, Is.EqualTo(autoDetEnabled));
		}

		[Test]
		public void SetupScriptUrlTest()
		{
			using var inet = new InternetProxyOptions();

			const string mySS = "setupscript.cmd";
			var setupScript = inet.SetupScriptUrl;
			inet.SetupScriptUrl = setupScript is null ? mySS : null;
			if (setupScript is null)
				Assert.That(inet.SetupScriptUrl, Is.Not.Null);
			else
				Assert.That(inet.SetupScriptUrl, Is.Null);
			inet.SetupScriptUrl = setupScript;
			if (setupScript is null)
				Assert.That(inet.SetupScriptUrl, Is.Null);
			else
				Assert.That(inet.SetupScriptUrl, Is.Not.Null);
		}

		[Test]
		public void ManualProxyUrlTest()
		{
			using var inet = new InternetProxyOptions();

			const string myProxy = "http://privateproxy.com";
			var proxy = inet.SetupScriptUrl;
			inet.ManualProxyUrl = proxy is null ? myProxy : null;
			if (proxy is null)
				Assert.That(inet.ManualProxyUrl, Is.Not.Null);
			else
				Assert.That(inet.ManualProxyUrl, Is.Null);
			inet.ManualProxyUrl = proxy;
			if (proxy is null)
				Assert.That(inet.ManualProxyUrl, Is.Null);
			else
				Assert.That(inet.ManualProxyUrl, Is.Not.Null);
		}

		[Test]
		public void ProxyBypassEntriesTest()
		{
			using var inet = new InternetProxyOptions();

			var byp = inet.ProxyBypassEntries ?? new string[0];
			var newList = new string[byp.Length + 2];
			Array.Copy(byp, newList, byp.Length);
			newList[newList.Length - 1] = "att.com";
			newList[newList.Length - 2] = "bp.com";
			inet.ProxyBypassEntries = newList;
			Assert.That(inet.ProxyBypassEntries, Is.Not.Null.And.Property("Length").EqualTo(newList.Length));
			inet.ProxyBypassEntries = byp.Length == 0 ? null : byp;
		}
	}
}