@graphql-tools/delegate/cjs/extractUnavailableFields.js

A set of utils for faster development of GraphQL tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.extractUnavailableFields = exports.extractUnavailableFieldsFromSelectionSet = void 0;
const graphql_1 = require("graphql");
const utils_1 = require("@graphql-tools/utils");
exports.extractUnavailableFieldsFromSelectionSet = (0, utils_1.memoize4)(function extractUnavailableFieldsFromSelectionSet(schema, fieldType, fieldSelectionSet, shouldAdd) {
    if ((0, graphql_1.isLeafType)(fieldType)) {
        return [];
    }
    if ((0, graphql_1.isUnionType)(fieldType)) {
        const unavailableSelections = [];
        for (const type of fieldType.getTypes()) {
            // Exclude other inline fragments
            const fieldSelectionExcluded = {
                ...fieldSelectionSet,
                selections: fieldSelectionSet.selections.filter(selection => selection.kind === graphql_1.Kind.INLINE_FRAGMENT
                    ? selection.typeCondition
                        ? selection.typeCondition.name.value === type.name
                        : false
                    : true),
            };
            unavailableSelections.push(...extractUnavailableFieldsFromSelectionSet(schema, type, fieldSelectionExcluded, shouldAdd));
        }
        return unavailableSelections;
    }
    const subFields = fieldType.getFields();
    const unavailableSelections = [];
    for (const selection of fieldSelectionSet.selections) {
        if (selection.kind === graphql_1.Kind.FIELD) {
            if (selection.name.value === '__typename') {
                continue;
            }
            const fieldName = selection.name.value;
            const selectionField = subFields[fieldName];
            if (!selectionField) {
                if (shouldAdd(fieldType, selection)) {
                    unavailableSelections.push(selection);
                }
            }
            else {
                const unavailableSubFields = (0, exports.extractUnavailableFields)(schema, selectionField, selection, shouldAdd);
                if (unavailableSubFields.length) {
                    unavailableSelections.push({
                        ...selection,
                        selectionSet: {
                            kind: graphql_1.Kind.SELECTION_SET,
                            selections: unavailableSubFields,
                        },
                    });
                }
            }
        }
        else if (selection.kind === graphql_1.Kind.INLINE_FRAGMENT) {
            const subFieldType = selection.typeCondition
                ? schema.getType(selection.typeCondition.name.value)
                : fieldType;
            if (((0, graphql_1.isObjectType)(subFieldType) || (0, graphql_1.isInterfaceType)(subFieldType)) &&
                (0, graphql_1.isAbstractType)(fieldType) &&
                schema.isSubType(fieldType, subFieldType)) {
                const unavailableFields = extractUnavailableFieldsFromSelectionSet(schema, subFieldType, selection.selectionSet, shouldAdd);
                if (unavailableFields.length) {
                    unavailableSelections.push({
                        ...selection,
                        selectionSet: {
                            kind: graphql_1.Kind.SELECTION_SET,
                            selections: unavailableFields,
                        },
                    });
                }
            }
            else {
                unavailableSelections.push(selection);
            }
        }
    }
    return unavailableSelections;
});
exports.extractUnavailableFields = (0, utils_1.memoize4)(function extractUnavailableFields(schema, field, fieldNode, shouldAdd) {
    if (fieldNode.selectionSet) {
        const fieldType = (0, graphql_1.getNamedType)(field.type);
        return (0, exports.extractUnavailableFieldsFromSelectionSet)(schema, fieldType, fieldNode.selectionSet, shouldAdd);
    }
    return [];
});