{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "use-proto-form-tanstack-v2",
  "title": "Experimental useProtoForm for TanStack Form v2",
  "description": "Experimental TanStack Form v2 alpha adapter with the native atom, validator-array, and schema-output APIs plus protobuf messages, update masks, and oneofs.",
  "dependencies": [
    "@bufbuild/protobuf",
    "@tanstack/react-form-v2@npm:@tanstack/react-form@2.0.0-alpha.0"
  ],
  "registryDependencies": [
    "@protoform/protobuf-provider"
  ],
  "files": [
    {
      "path": "registry/base-nova/protoform/hooks/use-proto-form-tanstack-v2/index.ts",
      "content": "'use client';\n\nimport {\n  isMessage,\n  type DescMessage,\n  type MessageShape,\n  type MessageValidType,\n} from '@bufbuild/protobuf';\nimport type { FieldMask } from '@bufbuild/protobuf/wkt';\nimport {\n  type DeepKeys,\n  type DefaultReactFormComponentMap,\n  type FieldUpdateOptions,\n  type FormOptions,\n  type FormValidators,\n  type ReactFormApi,\n  type StandardSchemaV1,\n  type ToFormErrorTypes,\n  useForm,\n} from '@tanstack/react-form-v2';\nimport {\n  createUpdateMask as createDirtyUpdateMask,\n  createProtoFormSchema,\n  dirtyFieldsFromValues,\n  formValuesToProto,\n  type ProtoConversionOptions,\n} from '../../lib/protobuf-provider';\n\ntype FormValues = Record<string, unknown>;\n\ntype ProtoFormValidator<Values extends FormValues, Desc extends DescMessage> = {\n  run: StandardSchemaV1<Values, MessageValidType<Desc>>;\n  triggers: [];\n};\n\ntype ProtoFormValidators<\n  Values extends FormValues,\n  Desc extends DescMessage,\n  TValidators extends FormValidators<Values>,\n> = readonly [...TValidators, ProtoFormValidator<Values, Desc>];\n\nexport type UseProtoFormOptions<\n  Values extends FormValues,\n  Desc extends DescMessage,\n  TValidators extends FormValidators<Values>,\n  TSubmitReturn,\n> = Omit<\n  FormOptions<\n    Values,\n    ProtoFormValidators<Values, Desc, TValidators>,\n    TSubmitReturn\n  >,\n  'validators'\n> & {\n  emptyRepeatedStringPolicies?: ProtoConversionOptions['emptyRepeatedStringPolicies'];\n  validators?: TValidators;\n};\n\nexport type UseProtoFormReturn<\n  Values extends FormValues,\n  Desc extends DescMessage,\n  TValidators extends FormValidators<Values>,\n  TSubmitReturn,\n> = ReactFormApi<\n  Values,\n  ToFormErrorTypes<\n    ProtoFormValidators<Values, Desc, TValidators>,\n    TSubmitReturn\n  >,\n  DefaultReactFormComponentMap\n> & {\n  createMessage: (values?: Values) => MessageShape<Desc>;\n  createUpdateMask: () => FieldMask;\n  setOneofValue: <TPath extends DeepKeys<Values>>(\n    path: TPath,\n    oneofCase: string,\n    value: unknown,\n    options?: FieldUpdateOptions\n  ) => void;\n};\n\nfunction appendProtoValidator<\n  Values extends FormValues,\n  Desc extends DescMessage,\n  TValidators extends FormValidators<Values>,\n>(\n  validators: TValidators | undefined,\n  validator: ProtoFormValidator<Values, Desc>\n): ProtoFormValidators<Values, Desc, TValidators> {\n  return [...(validators ?? []), validator] as ProtoFormValidators<\n    Values,\n    Desc,\n    TValidators\n  >;\n}\n\nexport function useProtoForm<\n  Desc extends DescMessage,\n  Values extends FormValues,\n  const TValidators extends FormValidators<Values> = [],\n  TSubmitReturn = unknown,\n>(\n  schema: Desc,\n  options: UseProtoFormOptions<Values, Desc, TValidators, TSubmitReturn>\n): UseProtoFormReturn<Values, Desc, TValidators, TSubmitReturn> {\n  const { emptyRepeatedStringPolicies, validators, ...nativeOptions } = options;\n  const conversionOptions: ProtoConversionOptions = {\n    emptyRepeatedStringPolicies,\n  };\n  const protoValidator: ProtoFormValidator<Values, Desc> = {\n    run: createProtoFormSchema<Values, Desc>(schema, conversionOptions),\n    triggers: [],\n  };\n  const composedOptions: FormOptions<\n    Values,\n    ProtoFormValidators<Values, Desc, TValidators>,\n    TSubmitReturn\n  > = {\n    ...nativeOptions,\n    validators: appendProtoValidator(validators, protoValidator),\n  };\n  const form = useForm(composedOptions);\n  const sourceMessage = isMessage(options.defaultValues, schema)\n    ? options.defaultValues\n    : undefined;\n\n  const setOneofValue = <TPath extends DeepKeys<Values>>(\n    path: TPath,\n    oneofCase: string,\n    value: unknown,\n    updateOptions?: FieldUpdateOptions\n  ) => {\n    const current = form.getFieldValue(path);\n    const isOneof =\n      current === undefined ||\n      current === null ||\n      (typeof current === 'object' && 'case' in current);\n    if (!isOneof) {\n      throw new Error(\n        `setOneofValue(\"${path}\"): target is not a oneof field. Expected { case, value } shape. Use setFieldValue() for regular fields.`\n      );\n    }\n    const previousCase =\n      typeof current === 'object' && current !== null\n        ? Reflect.get(current, 'case')\n        : undefined;\n    if (typeof previousCase === 'string' && previousCase !== oneofCase) {\n      Reflect.apply(form.setFieldValue, form, [\n        path,\n        { case: undefined, value: undefined },\n        updateOptions,\n      ]);\n    }\n    Reflect.apply(form.setFieldValue, form, [\n      path,\n      { case: oneofCase, value },\n      updateOptions,\n    ]);\n  };\n\n  return Object.assign(form, {\n    createMessage: (values?: Values) =>\n      formValuesToProto(\n        schema,\n        values ?? form.state.values,\n        sourceMessage,\n        conversionOptions\n      ),\n    createUpdateMask: () =>\n      createDirtyUpdateMask(\n        schema,\n        dirtyFieldsFromValues(form.state.values, form.defaultValues),\n        form.state.values,\n        form.defaultValues\n      ),\n    setOneofValue,\n  });\n}\n",
      "type": "registry:hook"
    }
  ],
  "type": "registry:hook"
}