/// <summary>
/// Initializes a new instance of the <see cref="GraphFieldPath"/> class.
/// </summary>
/// <param name="fullPath">The full path.</param>
public GraphFieldPath(string fullPath)
{
this.Raw = fullPath;
// set an initial unknown state of this object
this.IsValid = false;
this.Path = string.Empty;
this.Name = string.Empty;
this.RootCollection = GraphCollection.Unknown;
var workingPath = GraphFieldPath.NormalizeFragment(this.Raw);
// split the path into its fragments
List <string> pathFragments = workingPath.Split(new[] { RouteConstants.PATH_SEPERATOR }, StringSplitOptions.None).ToList();
switch (pathFragments[0])
{
case RouteConstants.QUERY_ROOT:
this.RootCollection = GraphCollection.Query;
break;
case RouteConstants.MUTATION_ROOT:
this.RootCollection = GraphCollection.Mutation;
break;
case RouteConstants.TYPE_ROOT:
this.RootCollection = GraphCollection.Types;
break;
case RouteConstants.ENUM_ROOT:
this.RootCollection = GraphCollection.Enums;
break;
case RouteConstants.DIRECTIVE_ROOT:
this.RootCollection = GraphCollection.Directives;
break;
}
// ensure each fragment matches the naming specification
foreach (var fragment in pathFragments.Skip(this.RootCollection == GraphCollection.Unknown ? 0 : 1))
{
if (!this.ValidateFragment(fragment))
{
return;
}
}
this.Name = pathFragments[pathFragments.Count - 1];
if (pathFragments.Count > 1)
{
this.Parent = new GraphFieldPath(string.Join(RouteConstants.PATH_SEPERATOR, pathFragments.Take(pathFragments.Count - 1)));
}
this.IsTopLevelField = pathFragments.Count == 1 || (pathFragments.Count == 2 && this.RootCollection > GraphCollection.Unknown); // e.g. "[query]/name"
this.IsValid = this.Name.Length > 0;
this.Path = this.GeneratePathString(pathFragments);
}
/// <summary>
/// Joins a parent and child route segments under the top level field type provided.
/// </summary>
/// <param name="routeSegments">The route segments to join.</param>
/// <returns>System.String.</returns>
public static string Join(params string[] routeSegments)
{
var fragment = string.Join(RouteConstants.PATH_SEPERATOR, routeSegments);
return(GraphFieldPath.NormalizeFragment(fragment));
}
