import type { Database as NativeDatabase, Transaction, Cell, RowJs } from '@visorcraft/mongreldb/native.js';
import type { Schema } from './schema.js';
import type { TableSpec, PkValue } from './types.js';
export interface ConstraintKit {
    db: MongrelDatabase;
    schema: Schema;
}
type MongrelDatabase = NativeDatabase & {
    transaction(fn: (txn: Transaction) => void | Promise<void>, opts?: {
        maxRetries?: number;
        baseDelayMs?: number;
    }): Promise<bigint>;
};
/** True when some table in the schema has a foreign key referencing `tableName`. */
export declare function isReferencedTable(schema: Schema, tableName: string): boolean;
export declare function toCells(table: TableSpec, row: Record<string, unknown>): Cell[];
export declare function findByPk(db: NativeDatabase, table: TableSpec, pkValue: PkValue): RowJs | null;
export declare function pkValueFromRow(table: TableSpec, row: Record<string, unknown>): PkValue;
export declare function pkValuesEqual(a: PkValue, b: PkValue): boolean;
export declare function stageUniqueGuards(kit: ConstraintKit, txn: Transaction, table: TableSpec, row: Record<string, unknown>, pkValue: PkValue): void;
export declare function stagePkGuard(kit: ConstraintKit, txn: Transaction, table: TableSpec, pkValue: PkValue, pkExplicit: boolean, pkSeen?: Set<string>): void;
export declare function deletePkGuard(kit: ConstraintKit, txn: Transaction, table: TableSpec, pkValue: PkValue): void;
export declare function deleteUniqueGuards(kit: ConstraintKit, txn: Transaction, table: TableSpec, pkValue: PkValue, onlyConstraints?: string[]): void;
export declare function touchRowGuard(kit: ConstraintKit, txn: Transaction, tableName: string, pkValue: PkValue): void;
export declare function deleteRowGuard(kit: ConstraintKit, txn: Transaction, tableName: string, pkValue: PkValue): void;
export declare function parentExists(kit: ConstraintKit, tableName: string, pkValue: PkValue): boolean;
export declare function enforceForeignKeys(kit: ConstraintKit, txn: Transaction, table: TableSpec, row: Record<string, unknown>): void;
export declare function planDelete(kit: ConstraintKit, txn: Transaction, table: TableSpec, pkValue: PkValue, known?: {
    row: Record<string, unknown>;
    rowId: bigint;
}): void;
/** Delete every Kit guard row owned by `tableName` (used by `truncateTable`). */
export declare function deleteGuardsForTable(kit: ConstraintKit, txn: Transaction, tableName: string): void;
export {};
//# sourceMappingURL=constraints.d.ts.map