using RadicadeServer.Utils;
using Xunit;

namespace RadicadeServer.Tests;

// An imported room save names its holotar and image blobs by their original
// rec.net names, and the 2023 client fetches exactly those (GET /data/<name>.htr).
// The admin upload route used to rename every file to a fresh GUID, so all of
// them answered 404 and the rooms loaded with those objects missing. The route
// can now be told the name to store under - and must refuse anything that is not
// a bare file name, since it writes into the CDN directory.
public class AdminUploadNameTests
{
    [Fact]
    public void NoNameRequested_LeavesTheNameToTheServer()
    {
        Assert.True(AdminUtils.TryResolveUploadName(null, out var name, out var error));
        Assert.Null(name);
        Assert.Null(error);

        Assert.True(AdminUtils.TryResolveUploadName("   ", out name, out error));
        Assert.Null(name);
        Assert.Null(error);
    }

    [Theory]
    [InlineData("315cb6bf6af14c0b83bfe2fdc8ef0c79.htr")]
    [InlineData("f4ab6f0d2409427fa7b1b33587f4db67.room")]
    [InlineData("DefaultProfileImage.jpg")]
    [InlineData("room_image-2.png")]
    public void ABlobNameIsKeptExactly(string requested)
    {
        Assert.True(AdminUtils.TryResolveUploadName(requested, out var name, out var error));
        Assert.Equal(requested, name);
        Assert.Null(error);
    }

    [Fact]
    public void SurroundingWhitespaceIsNotPartOfTheName()
    {
        Assert.True(AdminUtils.TryResolveUploadName("  abc.htr  ", out var name, out _));
        Assert.Equal("abc.htr", name);
    }

    // Every one of these would place the write somewhere other than the CDN
    // directory, or produce a name the client could never have requested.
    [Theory]
    [InlineData("../outside.htr")]
    [InlineData("..\\outside.htr")]
    [InlineData("sub/dir/blob.htr")]
    [InlineData("sub\\dir\\blob.htr")]
    [InlineData("/absolute/blob.htr")]
    [InlineData("C:\\Windows\\blob.htr")]
    [InlineData("blob..htr")]
    [InlineData("blob name.htr")]
    [InlineData("blob%2e%2e.htr")]
    [InlineData("blob;rm -rf.htr")]
    public void APathOrAnOddNameIsRefusedRatherThanRenamed(string requested)
    {
        Assert.False(AdminUtils.TryResolveUploadName(requested, out var name, out var error));
        Assert.Null(name);
        Assert.NotNull(error);
    }

    [Fact]
    public void AnOverlongNameIsRefused()
    {
        Assert.False(AdminUtils.TryResolveUploadName(new string('a', 129) + ".htr",
            out _, out var error));
        Assert.NotNull(error);
    }
}