using System;
using System.Linq;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Sorting;
using Xunit;

namespace Jellyfin.Controller.Tests
{
    public class AlphanumComparatorTests
    {
        private readonly Random _rng = new Random(42);

        // InlineData is pre-sorted
        [Theory]
        [InlineData(null, "", "1", "9", "10", "a", "z")]
        [InlineData("50F", "100F", "SR9", "SR100")]
        [InlineData("image-1.jpg", "image-02.jpg", "image-4.jpg", "image-9.jpg", "image-10.jpg", "image-11.jpg", "image-22.jpg")]
        [InlineData("Hard drive 2GB", "Hard drive 20GB")]
        [InlineData("b", "e", "è", "ě", "f", "g", "k")]
        [InlineData("123456789", "123456789a", "abc", "abcd")]
        [InlineData("12345678912345678912345678913234567891", "123456789123456789123456789132345678912")]
        [InlineData("12345678912345678912345678913234567891", "12345678912345678912345678913234567891")]
        [InlineData("12345678912345678912345678913234567891", "12345678912345678912345678913234567892")]
        [InlineData("12345678912345678912345678913234567891a", "12345678912345678912345678913234567891a")]
        [InlineData("12345678912345678912345678913234567891a", "12345678912345678912345678913234567891b")]
        public void AlphanumComparatorTest(params string?[] strings)
        {
            var copy = (string?[])strings.Clone();
            if (strings.Length == 2)
            {
                var tmp = copy[0];
                copy[0] = copy[1];
                copy[1] = tmp;
            }
            else
            {
                copy.Shuffle(_rng);
            }

            Array.Sort(copy, new AlphanumComparator());
            Assert.True(strings.SequenceEqual(copy));
        }
    }
}