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got types working
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bchu1 committed Sep 10, 2024
1 parent bd7f9fa commit 3acf380
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import { ResultOf, DocumentTypeDecoration, TypedDocumentNode } from '@graphql-typed-document-node/core';
import { FragmentDefinitionNode } from 'graphql';
import { Incremental } from './graphql';


export type FragmentType<TDocumentType extends DocumentTypeDecoration<any, any>> = TDocumentType extends DocumentTypeDecoration<
infer TType,
any
>
? [TType] extends [{ ' $fragmentName'?: infer TKey }]
? TKey extends string
? { ' $fragmentRefs'?: { [key in TKey]: TType } }
: never
: never
: never;

// return non-nullable if `fragmentType` is non-nullable
export function useFragment<TType>(
_documentNode: DocumentTypeDecoration<TType, any>,
fragmentType: FragmentType<DocumentTypeDecoration<TType, any>>
): TType;
// return nullable if `fragmentType` is nullable
export function useFragment<TType>(
_documentNode: DocumentTypeDecoration<TType, any>,
fragmentType: FragmentType<DocumentTypeDecoration<TType, any>> | null | undefined
): TType | null | undefined;
// return array of non-nullable if `fragmentType` is array of non-nullable
export function useFragment<TType>(
_documentNode: DocumentTypeDecoration<TType, any>,
fragmentType: ReadonlyArray<FragmentType<DocumentTypeDecoration<TType, any>>>
): ReadonlyArray<TType>;
// return array of nullable if `fragmentType` is array of nullable
export function useFragment<TType>(
_documentNode: DocumentTypeDecoration<TType, any>,
fragmentType: ReadonlyArray<FragmentType<DocumentTypeDecoration<TType, any>>> | null | undefined
): ReadonlyArray<TType> | null | undefined;
export function useFragment<TType>(
_documentNode: DocumentTypeDecoration<TType, any>,
fragmentType: FragmentType<DocumentTypeDecoration<TType, any>> | ReadonlyArray<FragmentType<DocumentTypeDecoration<TType, any>>> | null | undefined
): TType | ReadonlyArray<TType> | null | undefined {
return fragmentType as any;
}


export function makeFragmentData<
F extends DocumentTypeDecoration<any, any>,
FT extends ResultOf<F>
>(data: FT, _fragment: F): FragmentType<F> {
return data as FragmentType<F>;
}
export function isFragmentReady<TQuery, TFrag>(
queryNode: DocumentTypeDecoration<TQuery, any>,
fragmentNode: TypedDocumentNode<TFrag>,
data: FragmentType<TypedDocumentNode<Incremental<TFrag>, any>> | null | undefined
): data is FragmentType<typeof fragmentNode> {
const deferredFields = (queryNode as { __meta__?: { deferredFields: Record<string, (keyof TFrag)[]> } }).__meta__
?.deferredFields;

if (!deferredFields) return true;

const fragDef = fragmentNode.definitions[0] as FragmentDefinitionNode | undefined;
const fragName = fragDef?.name?.value;

const fields = (fragName && deferredFields[fragName]) || [];
return fields.length > 0 && fields.every(field => data && field in data);
}
24 changes: 24 additions & 0 deletions frontend/packages/data-portal/app/__generated_v2__/gql.ts
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/* eslint-disable */
import * as types from './graphql';
import { TypedDocumentNode as DocumentNode } from '@graphql-typed-document-node/core';

const documents = [];
/**
* The gql function is used to parse GraphQL queries into a document that can be used by GraphQL clients.
*
*
* @example
* ```ts
* const query = gql(`query GetUser($id: ID!) { user(id: $id) { name } }`);
* ```
*
* The query argument is unknown!
* Please regenerate the types.
*/
export function gql(source: string): unknown;

export function gql(source: string) {
return (documents as any)[source] ?? {};
}

export type DocumentType<TDocumentNode extends DocumentNode<any, any>> = TDocumentNode extends DocumentNode< infer TType, any> ? TType : never;
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