import type { Tuple } from '../../../codec.js';
import type { ScanOptions, CountOptions } from '../../../types.js';
import { SQLiteKVStoreOptions } from '../../utils/sqlite.js';
export type WorkerOperation = 'init' | 'get' | 'set' | 'delete' | 'scanStart' | 'scanNext' | 'scanDispose' | 'scanValuesStart' | 'scanValuesNext' | 'scanValuesDispose' | 'count' | 'clear' | 'applyEdits' | 'close';
export type InitPayload = {
    databasePath: string;
    options?: SQLiteKVStoreOptions;
};
export type GetPayload = {
    key: Tuple;
    scope?: Tuple;
};
export type SetPayload = {
    key: Tuple;
    value: any;
    scope?: Tuple;
};
export type DeletePayload = {
    key: Tuple;
    scope?: Tuple;
};
export type ScanStartPayload = {
    options: ScanOptions;
    scope?: Tuple;
};
export type ScanValuesStartPayload = {
    options: ScanOptions;
    scope?: Tuple;
};
export type CountPayload = {
    options: CountOptions;
    scope?: Tuple;
};
export type ClearPayload = {
    scope?: Tuple;
};
export type ApplyEditsPayload = {
    sets: [Tuple, any][];
    deletes: Tuple[];
    scope?: Tuple;
};
export type WorkerRequestPayload = InitPayload | GetPayload | SetPayload | DeletePayload | ScanStartPayload | ScanValuesStartPayload | CountPayload | ClearPayload | ApplyEditsPayload | {
    iteratorId: number;
} | null;
export interface WorkerRequest {
    id: number;
    operation: WorkerOperation;
    payload: WorkerRequestPayload;
}
export type WorkerResponseType = 'initSuccess' | 'result' | 'scanIteratorId' | 'scanValuesIteratorId' | 'scanData' | 'scanValuesData' | 'scanComplete' | 'scanValuesComplete' | 'error';
export interface WorkerResponse {
    id: number;
    type: WorkerResponseType;
    payload?: any;
    iteratorId?: number;
}
export type PendingRequest = {
    resolve: (value: any) => void;
    reject: (reason?: any) => void;
};
export type ActiveScan = {
    id: number;
    iteratorId: number;
    buffer: any[];
    isComplete: boolean;
    error: any | null;
    waiter: {
        resolve: () => void;
        promise: Promise<void>;
    } | null;
    onDispose: () => void;
};