using System;
using FluentAssertions;
using Light.GuardClauses.Exceptions;
using Xunit;

namespace Light.GuardClauses.Tests.UriAssertions;

public static class MustBeAbsoluteUriTests
{
    [Theory(DisplayName = "MustBeAbsoluteUri must not throw an exception when the specified uri is an absolute one.")]
    [MemberData(nameof(AbsoluteUriData))]
    public static void AbsoluteUri(Uri absoluteUri)
    {
        var result = absoluteUri.MustBeAbsoluteUri();

        result.Should().BeSameAs(absoluteUri);
    }

    public static readonly TheoryData<Uri> AbsoluteUriData =
        new()
        {
            new Uri("http://localhost:8080/api/contacts/"),
            new Uri("https://my.service.com/contacts/new"),
            new Uri("ftp://172.20.10.5/")
        };

    [Theory(DisplayName = "MustBeAbsoluteUri must throw an ArgumentException when the specified uri is a relative one.")]
    [MemberData(nameof(RelativeUriData))]
    public static void RelativeUri(Uri relativeUri)
    {
        Action act = () => relativeUri.MustBeAbsoluteUri(nameof(relativeUri));

        act.Should().Throw<ArgumentException>()
           .And.Message.Should().Contain($"{nameof(relativeUri)} must be an absolute URI, but it actually is \"{relativeUri}\".");
    }

    public static readonly TheoryData<Uri> RelativeUriData =
        new()
        {
            new Uri("/api/orders", UriKind.Relative),
            new Uri("/contacts/new", UriKind.Relative)
        };

    [Fact]
    public static void UriNull()
    {
        Action act = () => ((Uri) null).MustBeAbsoluteUri();

        act.Should().Throw<ArgumentNullException>();
    }

    [Fact]
    public static void CustomException() =>
        Test.CustomException(new Uri("/api/foo", UriKind.Relative),
                             (uri, exceptionFactory) => uri.MustBeAbsoluteUri(exceptionFactory));

    [Fact]
    public static void CustomExceptionUriAbsolute()
    {
        var uri = new Uri("https://www.microsoft.com");
        uri.MustBeAbsoluteUri(_ => null).Should().BeSameAs(uri);
    }

    [Fact]
    public static void CustomMessage() =>
        Test.CustomMessage<RelativeUriException>(message => new Uri("/home", UriKind.Relative).MustBeAbsoluteUri(message: message));

    [Fact]
    public static void CustomMessageUriNull() => 
        Test.CustomMessage<ArgumentNullException>(message => ((Uri)null).MustBeAbsoluteUri(message: message));

    [Fact]
    public static void CallerArgumentExpression()
    {
        var relativeUri = new Uri("/api/hello", UriKind.Relative);

        var act = () => relativeUri.MustBeAbsoluteUri();

        act.Should().Throw<RelativeUriException>()
           .WithParameterName(nameof(relativeUri));
    }
}