import { LitElement, PropertyDeclaration } from 'lit';
import { Repo, Mapping, BooleanString, InputPosition, Theme, AvailableLanguage, Loading } from './types';
export * from './types';
/**
 * Widget element for giscus.
 */
export declare class GiscusWidget extends LitElement {
    private GISCUS_SESSION_KEY;
    private GISCUS_DEFAULT_HOST;
    private ERROR_SUGGESTION;
    private __session;
    private _iframeRef;
    private messageEventHandler;
    private hasLoaded;
    get iframeRef(): HTMLIFrameElement | undefined;
    static styles: import("lit").CSSResult;
    /**
     * Host of the giscus server.
     */
    host: string;
    get _host(): string;
    /**
     * Repo where the discussion is stored.
     */
    repo: Repo;
    /**
     * ID of the repo where the discussion is stored.
     */
    repoId?: string;
    /**
     * Category where the discussion will be searched.
     */
    category?: string;
    /**
     * ID of the category where new discussions will be created.
     */
    categoryId?: string;
    /**
     * Mapping between the parent page and the discussion.
     */
    mapping?: Mapping;
    /**
     * Search term to use when searching for the discussion.
     */
    term?: string;
    /**
     * Use strict title matching.
     */
    strict: BooleanString;
    /**
     * Enable reactions to the main post of the discussion.
     */
    reactionsEnabled: BooleanString;
    /**
     * Emit the discussion metadata periodically to the parent page.
     */
    emitMetadata: BooleanString;
    /**
     * Placement of the comment box (`top` or `bottom`).
     */
    inputPosition: InputPosition;
    /**
     * Theme that giscus will be displayed in.
     */
    theme: Theme;
    /**
     * Language that giscus will be displayed in.
     */
    lang: AvailableLanguage;
    /**
     * Whether the iframe should be loaded lazily or eagerly.
     */
    loading: Loading;
    constructor();
    disconnectedCallback(): void;
    private _formatError;
    private setupSession;
    private signOut;
    private handleMessageEvent;
    private sendMessage;
    private updateConfig;
    firstUpdated(): void;
    requestUpdate(name?: PropertyKey, oldValue?: unknown, options?: PropertyDeclaration<unknown, unknown>): void;
    private getMetaContent;
    private _getCleanedUrl;
    private getTerm;
    private getNumber;
    private getIframeSrc;
    render(): import("lit-html").TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        'giscus-widget': GiscusWidget;
    }
}
export interface ISetConfigMessage {
    setConfig: {
        theme?: Theme;
        repo?: Repo;
        repoId?: string;
        category?: string;
        categoryId?: string;
        term?: string;
        description?: string;
        backLink?: string;
        number?: number;
        strict?: boolean;
        reactionsEnabled?: boolean;
        emitMetadata?: boolean;
        inputPosition?: InputPosition;
        lang?: AvailableLanguage;
    };
}
export interface GiscusMessage {
    giscus?: Partial<{
        resizeHeight: number;
        signOut: boolean;
        error: string;
    }>;
}