using System;
using AMWD.Common.AspNetCore.Utilities;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace UnitTests.AspNetCore.Utilities
{
	[TestClass]
	[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
	public class HtmlHelperTests
	{
		[TestMethod]
		[ExpectedException(typeof(ArgumentNullException))]
		public void ShouldThrowErrorOnEmptyColor()
		{
			// arrange

			// act
			HtmlHelper.IsDarkColor("");

			// assert
			// exception thrown
		}

		[TestMethod]
		[ExpectedException(typeof(NotSupportedException))]
		public void ShouldThrowErrorOnUnsupportedColor()
		{
			// arrange

			// act
			HtmlHelper.IsDarkColor("hsv(1, 2, 3)");

			// assert
			// exception thrown
		}

		[DataTestMethod]
		[DataRow("rgb(255, 255, 255)")]
		[DataRow("rgba(255, 255, 255, .5)")]
		public void ShouldReturnLightColorForWhiteRgb(string white)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(white);

			// assert
			Assert.IsFalse(isDark);
		}

		[DataTestMethod]
		[DataRow("#ffFFff")]
		[DataRow("FFffFF")]
		public void ShouldReturnLightColorForWhiteFullHex(string white)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(white);

			// assert
			Assert.IsFalse(isDark);
		}

		[DataTestMethod]
		[DataRow("#fFf")]
		[DataRow("FfF")]
		public void ShouldReturnLightColorForWhiteShortHex(string white)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(white);

			// assert
			Assert.IsFalse(isDark);
		}

		[DataTestMethod]
		[DataRow("rgb(0, 0, 0)")]
		[DataRow("rgba(0, 0, 0, .5)")]
		public void ShouldReturnDarkColorForBlackRgb(string black)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(black);

			// assert
			Assert.IsTrue(isDark);
		}

		[DataTestMethod]
		[DataRow("#000000")]
		[DataRow("000000")]
		public void ShouldReturnDarkColorForBlackFullHex(string black)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(black);

			// assert
			Assert.IsTrue(isDark);
		}

		[DataTestMethod]
		[DataRow("#000")]
		[DataRow("000")]
		public void ShouldReturnDarkColorForBlackShortHex(string black)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(black);

			// assert
			Assert.IsTrue(isDark);
		}

		[DataTestMethod]
		[DataRow("rgb(255, 88, 0)")]
		[DataRow("rgb(0, 218, 0)")]
		[DataRow("rgb(0, 168, 255)")]
		[DataRow("rgb(255, 38, 255)")]
		[DataRow("rgb(128, 128, 128)")]
		public void ShouldReturnLightColorForBorderColors(string color)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(color);

			// assert
			Assert.IsFalse(isDark);
		}

		[DataTestMethod]
		[DataRow("rgb(253, 88, 0)")]
		[DataRow("rgb(0, 217, 0)")]
		[DataRow("rgb(0, 168, 253)")]
		[DataRow("rgb(254, 38, 254)")]
		[DataRow("rgb(127, 127, 127)")]
		public void ShouldReturnDarkColorForBorderColors(string color)
		{
			// arrange

			// act
			bool isDark = HtmlHelper.IsDarkColor(color);

			// assert
			Assert.IsTrue(isDark);
		}
	}
}