import type { EntityManager } from "../entities";
import { Field } from "../fields";
import type { EntityRelation } from "./EntityRelation";
import type { EntityRelationAnchor } from "./EntityRelationAnchor";
import type { TFieldTSType } from "../../data/entities/EntityTypescript";
import { s } from "bknd/utils";
export declare const relationFieldConfigSchema: s.ObjectSchema<{
    readonly label: s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
    readonly description: s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
    readonly required: s.Schema<s.ISchemaOptions, boolean | undefined, boolean | undefined>;
    readonly fillable: s.Schema<s.ISchemaOptions, boolean | ("create" | "read" | "update" | "delete")[] | undefined, boolean | ("create" | "read" | "update" | "delete")[] | undefined>;
    readonly hidden: s.Schema<s.ISchemaOptions, boolean | ("table" | "create" | "read" | "update" | "delete" | "form" | "submit")[] | undefined, boolean | ("table" | "create" | "read" | "update" | "delete" | "form" | "submit")[] | undefined>;
    readonly virtual: s.Schema<s.ISchemaOptions, boolean | undefined, boolean | undefined>;
    readonly default_value: s.Schema<s.ISchemaOptions, any, any>;
    readonly reference: s.StringSchema<s.IStringOptions> & s.IStringOptions;
    readonly target: s.StringSchema<s.IStringOptions> & s.IStringOptions;
    readonly target_field: {
        readonly default: "id";
    } & s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
    readonly target_field_type: {
        readonly default: "integer";
        readonly enum: ["text", "integer"];
    } & s.Schema<s.ISchemaOptions, "text" | "integer" | undefined, "text" | "integer" | undefined>;
    readonly on_delete: {
        readonly default: "set null";
        readonly enum: readonly ["cascade", "set null", "set default", "restrict", "no action"];
    } & s.Schema<s.ISchemaOptions, "cascade" | "set null" | "set default" | "restrict" | "no action" | undefined, "cascade" | "set null" | "set default" | "restrict" | "no action" | undefined>;
}, s.Merge<s.IObjectOptions & {
    additionalProperties: false;
}>>;
export type RelationFieldConfig = s.Static<typeof relationFieldConfigSchema>;
export type RelationFieldBaseConfig = {
    label?: string;
};
export declare class RelationField extends Field<RelationFieldConfig> {
    readonly type = "relation";
    protected getSchema(): s.ObjectSchema<{
        readonly label: s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
        readonly description: s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
        readonly required: s.Schema<s.ISchemaOptions, boolean | undefined, boolean | undefined>;
        readonly fillable: s.Schema<s.ISchemaOptions, boolean | ("create" | "read" | "update" | "delete")[] | undefined, boolean | ("create" | "read" | "update" | "delete")[] | undefined>;
        readonly hidden: s.Schema<s.ISchemaOptions, boolean | ("table" | "create" | "read" | "update" | "delete" | "form" | "submit")[] | undefined, boolean | ("table" | "create" | "read" | "update" | "delete" | "form" | "submit")[] | undefined>;
        readonly virtual: s.Schema<s.ISchemaOptions, boolean | undefined, boolean | undefined>;
        readonly default_value: s.Schema<s.ISchemaOptions, any, any>;
        readonly reference: s.StringSchema<s.IStringOptions> & s.IStringOptions;
        readonly target: s.StringSchema<s.IStringOptions> & s.IStringOptions;
        readonly target_field: {
            readonly default: "id";
        } & s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
        readonly target_field_type: {
            readonly default: "integer";
            readonly enum: ["text", "integer"];
        } & s.Schema<s.ISchemaOptions, "text" | "integer" | undefined, "text" | "integer" | undefined>;
        readonly on_delete: {
            readonly default: "set null";
            readonly enum: readonly ["cascade", "set null", "set default", "restrict", "no action"];
        } & s.Schema<s.ISchemaOptions, "cascade" | "set null" | "set default" | "restrict" | "no action" | undefined, "cascade" | "set null" | "set default" | "restrict" | "no action" | undefined>;
    }, s.Merge<s.IObjectOptions & {
        additionalProperties: false;
    }>>;
    static create(relation: EntityRelation, target: EntityRelationAnchor, config?: RelationFieldBaseConfig): RelationField;
    reference(): string;
    target(): string;
    targetField(): string;
    schema(): Readonly<{
        type: "text" | "integer";
        references: `${string}.${string}` | `${string}.undefined`;
        onDelete: "cascade" | "set null" | "set default" | "restrict" | "no action";
        name: string;
        nullable?: boolean;
        dflt?: any;
        unique?: boolean;
        primary?: boolean;
        onUpdate?: import("kysely").OnModifyForeignAction;
    }>;
    transformRetrieve(value: any): any;
    transformPersist(value: any, em: EntityManager<any>): Promise<any>;
    toJsonSchema(): s.Schema<{
        readonly $ref: `${string}#/properties/undefined` | `${string}#/properties/${string}`;
    }, number, number> & {
        readonly $ref: `${string}#/properties/undefined` | `${string}#/properties/${string}`;
    };
    toType(): TFieldTSType;
}