import { BasePlugin, PluginClass, PluginOptions } from './BasePlugin';
export declare const ECPluginEventTypes: {
    pageview: string;
    event: string;
};
type RequireAtLeastOne<T, Keys extends keyof T = keyof T> = Pick<T, Exclude<keyof T, Keys>> & {
    [K in Keys]-?: Required<Pick<T, K>> & Partial<Pick<T, Exclude<Keys, K>>>;
}[Keys];
export type CustomValues = {
    [key: string]: string | number | boolean;
};
export interface CoveoExtensionProperties {
    group?: string;
}
export interface ProductProperties extends CoveoExtensionProperties {
    id?: string;
    name?: string;
    brand?: string;
    category?: string;
    variant?: string;
    price?: number;
    quantity?: number;
    coupon?: string;
    position?: number;
    custom?: CustomValues;
}
export type Product = RequireAtLeastOne<ProductProperties, 'id' | 'name'>;
export interface ImpressionProperties extends CoveoExtensionProperties {
    id?: string;
    name?: string;
    list?: string;
    brand?: string;
    category?: string;
    variant?: string;
    position?: number;
    price?: number;
    custom?: CustomValues;
}
export type Impression = RequireAtLeastOne<ImpressionProperties, 'id' | 'name'>;
export type BaseImpression = Omit<Impression, 'list'>;
export interface ImpressionList {
    listName?: string;
    impressions: BaseImpression[];
}
export declare class ECPlugin extends BasePlugin {
    static readonly Id = "ec";
    private products;
    private impressions;
    constructor({ client, uuidGenerator }: PluginOptions);
    getApi(name: string): Function | null;
    protected addHooks(): void;
    addProduct(product: Product): void;
    addImpression(impression: Impression): void;
    protected clearPluginData(): void;
    private addHooksForECEvents;
    private addHooksForPageView;
    private addHooksForEvent;
    private addECDataToPayload;
    private getProductPayload;
    private convertNumberTypes;
    private getImpressionPayload;
    private assureProductValidity;
    private assureBaseImpressionValidity;
    private getImpressionsByList;
}
export declare const EC: PluginClass;
export {};