import type { Collection as MongoCollection, InsertOneResult, Document, UpdateResult, DeleteResult } from "mongodb";
import type { App } from "../main.js";
import type { QueryStage } from "./query-stage.js";
import type { OutputOptions } from "./datastore.js";
export default abstract class Datastore {
    app: App;
    constructor(app: App);
    abstract start(): Promise<void>;
    abstract stop(): Promise<void>;
    abstract find(collection_name: string, query: Record<string, unknown>, options: Parameters<MongoCollection["find"]>[1], output_options: OutputOptions): Promise<Record<string, unknown>[]>;
    abstract aggregate(collection_name: string, pipeline: QueryStage[], _: unknown, output_options: OutputOptions): Promise<Record<string, unknown>[]>;
    abstract insert(collection_name: string, to_insert: Record<string, unknown>, options?: Parameters<MongoCollection["insertOne"]>[1]): Promise<InsertOneResult<Document>>;
    abstract update(collection_name: string, query: unknown, new_value: unknown): Promise<UpdateResult<Document>>;
    abstract remove(collection_name: string, query: unknown, just_one: boolean): Promise<DeleteResult>;
}