/**
 * SDK Type Definitions
 */
export type CheckoutMode = "test" | "live";
export type DisplayType = "overlay";
export type LinkType = "static" | "dynamic";
export type ThemeType = "light" | "dark";
export type EventType = "checkout.opened" | "checkout.payment_page_opened" | "checkout.closed" | "checkout.error" | "checkout.customer_details_submitted" | "checkout.redirect";
export interface CheckoutEvent {
    event_type: EventType;
    data?: Record<string, unknown>;
}
export type CheckoutEventCallback = (event: CheckoutEvent) => void;
export type EventCallback = (data: Record<string, unknown>) => void;
export type EventMap = Record<string, EventCallback[]>;
export interface CheckoutConfig {
    mode: CheckoutMode;
    onEvent?: CheckoutEventCallback;
    linkType?: LinkType;
    theme?: ThemeType;
    displayType?: DisplayType;
}
export interface ProductItem {
    productId: string;
    quantity: number;
}
export interface OpenCheckoutOptions {
    products?: ProductItem[];
    queryParams?: Record<string, string>;
    paymentLink?: string;
    redirectUrl?: string;
}
export interface CheckoutState {
    iframe: HTMLIFrameElement | null;
    container: HTMLDivElement | null;
    config: CheckoutConfig;
    currentProducts: ProductItem[];
    baseUrl: string;
    allowedOrigin: string;
    iframeId: string;
    eventListeners: EventMap;
}