private State TryResolveFullPath()

in TeamCity.CSharpInteractive/FilePathResolver.cs [56:87]
29 lines of code
5 McCabe index (conditional complexity)

    private State TryResolveFullPath(string basePath, string fullPath, out string fullScriptPath)
    {
        fullScriptPath = string.Empty;
        var isFileExist = _fileSystem.IsFileExist(fullPath);
        _log.Trace(() => new[] {new Text($"Try to find file \"{fullPath}\" in \"{basePath}\": {isFileExist}.")});
        if (isFileExist)
        {
            fullScriptPath = fullPath;
            return State.Found;
        }
                
        var isDirectoryExist = _fileSystem.IsDirectoryExist(fullPath);
        _log.Trace(() => new[] {new Text($"Try to find directory \"{fullPath}\" in \"{basePath}\": {isDirectoryExist}.")});
        if (isDirectoryExist)
        {
            var scripts = _fileSystem.EnumerateFileSystemEntries(fullPath, "*.csx", SearchOption.TopDirectoryOnly).ToList();
            switch (scripts.Count)
            {
                case 1:
                    fullScriptPath = scripts[0];
                    return State.Found;
                case > 1:
                    _log.Error(ErrorId.CannotFind, new Text($"Specify which script file to use because the folder \"{fullPath}\" contains more than one script file."));
                    return State.Error;
                default:
                    return State.Unknown;
            }

        }
        
        return State.NotFound;
    }