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* as React from \"rehackt\";\nimport type { DocumentNode } from \"graphql\";\nimport type { TypedDocumentNode } from \"@graphql-typed-document-node/core\";\nimport type {\n  MutationFunctionOptions,\n  MutationHookOptions,\n  MutationResult,\n  MutationTuple,\n  NoInfer,\n} from \"../types/types.js\";\n\nimport type {\n  ApolloCache,\n  DefaultContext,\n  MutationOptions,\n  OperationVariables,\n} from \"../../core/index.js\";\nimport { mergeOptions } from \"../../utilities/index.js\";\nimport { equal } from \"@wry/equality\";\nimport { DocumentType, verifyDocumentType } from \"../parser/index.js\";\nimport { ApolloError } from \"../../errors/index.js\";\nimport { useApolloClient } from \"./useApolloClient.js\";\n\n/**\n *\n *\n * > Refer to the [Mutations](https://www.apollographql.com/docs/react/data/mutations/) section for a more in-depth overview of `useMutation`.\n *\n * @example\n * ```jsx\n * import { gql, useMutation } from '@apollo/client';\n *\n * const ADD_TODO = gql`\n *   mutation AddTodo($type: String!) {\n *     addTodo(type: $type) {\n *       id\n *       type\n *     }\n *   }\n * `;\n *\n * function AddTodo() {\n *   let input;\n *   const [addTodo, { data }] = useMutation(ADD_TODO);\n *\n *   return (\n *     <div>\n *       <form\n *         onSubmit={e => {\n *           e.preventDefault();\n *           addTodo({ variables: { type: input.value } });\n *           input.value = '';\n *         }}\n *       >\n *         <input\n *           ref={node => {\n *             input = node;\n *           }}\n *         />\n *         <button type=\"submit\">Add Todo</button>\n *       </form>\n *     </div>\n *   );\n * }\n * ```\n * @since 3.0.0\n * @param mutation - A GraphQL mutation document parsed into an AST by `gql`.\n * @param options - Options to control how the mutation is executed.\n * @returns A tuple in the form of `[mutate, result]`\n */\nexport function useMutation<\n  TData = any,\n  TVariables = OperationVariables,\n  TContext = DefaultContext,\n  TCache extends ApolloCache<any> = ApolloCache<any>,\n>(\n  mutation: DocumentNode | TypedDocumentNode<TData, TVariables>,\n  options?: MutationHookOptions<\n    NoInfer<TData>,\n    NoInfer<TVariables>,\n    TContext,\n    TCache\n  >\n): MutationTuple<TData, TVariables, TContext, TCache> {\n  const client = useApolloClient(options?.client);\n  verifyDocumentType(mutation, DocumentType.Mutation);\n  const [result, setResult] = React.useState<Omit<MutationResult, \"reset\">>({\n    called: false,\n    loading: false,\n    client,\n  });\n\n  const ref = React.useRef({\n    result,\n    mutationId: 0,\n    isMounted: true,\n    client,\n    mutation,\n    options,\n  });\n\n  // TODO: Trying to assign these in a useEffect or useLayoutEffect breaks\n  // higher-order components.\n  {\n    Object.assign(ref.current, { client, options, mutation });\n  }\n\n  const execute = React.useCallback(\n    (\n      executeOptions: MutationFunctionOptions<\n        TData,\n        TVariables,\n        TContext,\n        TCache\n      > = {}\n    ) => {\n      const { options, mutation } = ref.current;\n      const baseOptions = { ...options, mutation };\n      const client = executeOptions.client || ref.current.client;\n\n      if (\n        !ref.current.result.loading &&\n        !baseOptions.ignoreResults &&\n        ref.current.isMounted\n      ) {\n        setResult(\n          (ref.current.result = {\n            loading: true,\n            error: void 0,\n            data: void 0,\n            called: true,\n            client,\n          })\n        );\n      }\n\n      const mutationId = ++ref.current.mutationId;\n      const clientOptions = mergeOptions(baseOptions, executeOptions);\n\n      return client\n        .mutate(clientOptions as MutationOptions<TData, OperationVariables>)\n        .then((response) => {\n          const { data, errors } = response;\n          const error =\n            errors && errors.length > 0 ?\n              new ApolloError({ graphQLErrors: errors })\n            : void 0;\n\n          const onError =\n            executeOptions.onError || ref.current.options?.onError;\n\n          if (error && onError) {\n            onError(\n              error,\n              clientOptions as MutationOptions<TData, OperationVariables>\n            );\n          }\n\n          if (\n            mutationId === ref.current.mutationId &&\n            !clientOptions.ignoreResults\n          ) {\n            const result = {\n              called: true,\n              loading: false,\n              data,\n              error,\n              client,\n            };\n\n            if (ref.current.isMounted && !equal(ref.current.result, result)) {\n              setResult((ref.current.result = result));\n            }\n          }\n\n          const onCompleted =\n            executeOptions.onCompleted || ref.current.options?.onCompleted;\n\n          if (!error) {\n            onCompleted?.(\n              response.data!,\n              clientOptions as MutationOptions<TData, OperationVariables>\n            );\n          }\n\n          return response;\n        })\n        .catch((error) => {\n          if (mutationId === ref.current.mutationId && ref.current.isMounted) {\n            const result = {\n              loading: false,\n              error,\n              data: void 0,\n              called: true,\n              client,\n            };\n\n            if (!equal(ref.current.result, result)) {\n              setResult((ref.current.result = result));\n            }\n          }\n\n          const onError =\n            executeOptions.onError || ref.current.options?.onError;\n\n          if (onError) {\n            onError(\n              error,\n              clientOptions as MutationOptions<TData, OperationVariables>\n            );\n\n            // TODO(brian): why are we returning this here???\n            return { data: void 0, errors: error };\n          }\n\n          throw error;\n        });\n    },\n    []\n  );\n\n  const reset = React.useCallback(() => {\n    if (ref.current.isMounted) {\n      const result = { called: false, loading: false, client };\n      Object.assign(ref.current, { mutationId: 0, result });\n      setResult(result);\n    }\n  }, []);\n\n  React.useEffect(() => {\n    ref.current.isMounted = true;\n\n    return () => {\n      ref.current.isMounted = false;\n    };\n  }, []);\n\n  return [execute, { reset, ...result }];\n}\n"]}