public (QueryContentAppender appender, QueryRenderingContext context) AppendStartOfSelectionSet()
{
_content.AppendLine("{");
_context = _context.IncreaseIndentationLevel();
return(this, _context);
}
/// <inheritdoc />
public string Render(IGraphQLOperation query)
{
var context = new QueryRenderingContext();
var content = new QueryContentAppender(context);
content.Append($"{Render(query.Type)} ")
.Append(RenderOperationName(query.Name))
.Append(Render(query.SelectionSet, context));
return(content.ToString());
}
private string Render(ISelectionSet selectionSet, QueryRenderingContext context)
{
var content = new QueryContentAppender(context);
(_, context) = content.AppendStartOfSelectionSet();
foreach (var selectionItem in selectionSet.Selections)
{
var selectionItemContent = selectionItem switch
{
IFieldSelectionItem fieldSelection => Render(fieldSelection, context),
_ => throw new NotImplementedException($"Unable to render selection {selectionItem.GetType().FullName}")
};
content.AppendLineWithIndentation($"{selectionItemContent}");
}
content.AppendEndOfSelectionSet();
return(content.ToString());
}
private string Render(IFieldSelectionItem fieldSelection, QueryRenderingContext context)
{
var content = new QueryContentAppender(context);
if (!string.IsNullOrWhiteSpace(fieldSelection.Alias))
{
content.Append($"{fieldSelection.Alias}: ");
}
content.Append(fieldSelection.FieldName);
if (fieldSelection.Arguments.Count != 0)
{
content.Append(Render(fieldSelection.Arguments.ToList()));
}
if (fieldSelection.SelectionSet != null)
{
content.Append($" {Render(fieldSelection.SelectionSet, context)}");
}
return(content.ToString());
}
public QueryContentAppender AppendEndOfSelectionSet()
{
_context = _context.DecreaseIndentationLevel();
return(Append($"{_context.RenderIndentationString()}}}"));
}
public QueryContentAppender(QueryRenderingContext context)
{
_context = context ?? throw new ArgumentNullException(nameof(context));
}
