LibHac/tests/LibHac.Tests/Fs/FileSystemClientTests/FileSystemServerFactory.cs

using LibHac.Common.Keys;
using LibHac.Fs;
using LibHac.Fs.Fsa;
using LibHac.FsSrv;
using LibHac.FsSystem;
using LibHac.Tools.Fs;

namespace LibHac.Tests.Fs.FileSystemClientTests;

public static class FileSystemServerFactory
{
    private static Horizon CreateHorizonImpl(bool sdCardInserted, out IFileSystem rootFs)
    {
        rootFs = new InMemoryFileSystem();
        var keySet = new KeySet();

        var horizon = new Horizon(new HorizonConfiguration());

        HorizonClient fsServerClient = horizon.CreatePrivilegedHorizonClient();
        var fsServer = new FileSystemServer(fsServerClient);

        var random = new Random(12345);
        RandomDataGenerator randomGenerator = buffer => random.NextBytes(buffer);

        var defaultObjects = DefaultFsServerObjects.GetDefaultEmulatedCreators(rootFs, keySet, fsServer, randomGenerator);

        defaultObjects.SdCard.SetSdCardInsertionStatus(sdCardInserted);

        var config = new FileSystemServerConfig();
        config.FsCreators = defaultObjects.FsCreators;
        config.DeviceOperator = defaultObjects.DeviceOperator;
        config.ExternalKeySet = new ExternalKeySet();
        config.RandomGenerator = randomGenerator;

        FileSystemServerInitializer.InitializeWithConfig(fsServerClient, fsServer, config);
        return horizon;
    }

    private static FileSystemClient CreateClientImpl(bool sdCardInserted, out IFileSystem rootFs)
    {
        Horizon horizon = CreateHorizonImpl(sdCardInserted, out rootFs);

        HorizonClient horizonClient = horizon.CreatePrivilegedHorizonClient();

        return horizonClient.Fs;
    }

    public static FileSystemClient CreateClient(bool sdCardInserted)
    {
        return CreateClientImpl(sdCardInserted, out _);
    }

    public static FileSystemClient CreateClient(out IFileSystem rootFs)
    {
        return CreateClientImpl(false, out rootFs);
    }

    public static Horizon CreateHorizonServer()
    {
        return CreateHorizonImpl(true, out _);
    }
}