import 'graphile-build';
import 'graphile-build-pg';
import type { GraphileConfig } from 'graphile-config';
/**
 * RequiredInputPlugin - Makes @requiredInput tagged fields non-nullable in mutation inputs.
 *
 * WHY THIS EXISTS:
 * Some foreign key columns are nullable at the database level (to allow SET NULL cascades
 * on FK deletion) but should be required at the API level (the application should always
 * provide a value when creating or updating a record).
 *
 * The `api_required` column in constructive-db's metaschema injects a `@requiredInput`
 * smart tag via PostgreSQL COMMENT ON COLUMN. This plugin reads that tag and wraps the
 * corresponding GraphQL input field type with NonNull, making it required in mutations
 * while keeping the output type nullable.
 *
 * USAGE:
 * In the database, set the smart tag on a column:
 *   COMMENT ON COLUMN app_public.membership.grantor_id IS E'@requiredInput';
 *
 * Or via constructive-db's metaschema:
 *   UPDATE metaschema_public.field SET api_required = true WHERE ...;
 *
 * The trigger `tg_sync_api_required_smart_tag` will inject `{"requiredInput": true}`
 * into the column's smart_tags JSONB, which PostGraphile reads as `@requiredInput`.
 *
 * RESULT:
 * - Mutation input types (create, patch, base): field becomes non-nullable (required)
 * - Output types: field remains nullable (unchanged)
 * - Query filters: unaffected
 */
export declare const RequiredInputPlugin: GraphileConfig.Plugin;
/**
 * Preset that includes the RequiredInputPlugin.
 * Add this to your main preset's `extends` array.
 */
export declare const RequiredInputPreset: GraphileConfig.Preset;