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package graphql.schema;

import graphql.Internal;
import graphql.util.NodeAdapter;
import graphql.util.NodeLocation;

import java.util.List;
import java.util.Map;

@Internal
public class GraphQLSchemaElementAdapter implements NodeAdapter {

    public static final GraphQLSchemaElementAdapter SCHEMA_ELEMENT_ADAPTER = new GraphQLSchemaElementAdapter();

    private GraphQLSchemaElementAdapter() {

    }

    @Override
    public Map> getNamedChildren(GraphQLSchemaElement node) {
        return node.getChildrenWithTypeReferences().getChildren();
    }

    @Override
    public GraphQLSchemaElement withNewChildren(GraphQLSchemaElement node, Map> newChildren) {
        SchemaElementChildrenContainer childrenContainer = SchemaElementChildrenContainer.newSchemaElementChildrenContainer(newChildren).build();
        return node.withNewChildren(childrenContainer);
    }

    @Override
    public GraphQLSchemaElement removeChild(GraphQLSchemaElement node, NodeLocation location) {
        SchemaElementChildrenContainer children = node.getChildrenWithTypeReferences();
        SchemaElementChildrenContainer newChildren = children.transform(builder -> builder.removeChild(location.getName(), location.getIndex()));
        return node.withNewChildren(newChildren);
    }
}