import { Dispatch, ReactNode, SetStateAction } from 'react';
import { Visitor, IFlagshipConfig, FlagDTO, CampaignDTO, primitive, BucketingDTO, FSSdkStatus, IHit, IFSFlag, IFSFlagCollection, SerializedFlagMetadata, FlagsStatus } from '@flagship.io/js-sdk';
export interface FsContextState {
    visitor?: Visitor;
    config?: IFlagshipConfig;
    flags?: Map<string, FlagDTO>;
    initialCampaigns?: CampaignDTO[];
    initialFlags?: Map<string, FlagDTO> | FlagDTO[];
    isInitializing: boolean;
    hasVisitorData?: boolean;
    toggleForcedVariations?: boolean;
}
export type VisitorData = {
    id?: string;
    context?: Record<string, primitive>;
    isAuthenticated?: boolean;
    hasConsented: boolean;
};
export interface FsContext {
    state: FsContextState;
    setState?: Dispatch<SetStateAction<FsContextState>>;
}
/**
 * Props for the FlagshipProvider component.
 */
export interface FlagshipProviderProps extends IFlagshipConfig {
    /**
     * This is the data to identify the current visitor using your app.
     */
    visitorData: VisitorData | null;
    /**
     * The environment ID for your Flagship project.
     */
    envId: string;
    /**
     * The API key for your Flagship project.
     */
    apiKey: string;
    /**
     * This component will be rendered when Flagship is loading at first initialization only.
     * By default, the value is undefined. It means it will display your app and it might
     * display default modifications value for a very short moment.
     */
    loadingComponent?: ReactNode;
    /**
     * The child components to be rendered within the FlagshipProvider.
     */
    children?: ReactNode;
    /**
     * This is an object of the data received when fetching bucketing endpoint.
     * Providing this prop will make bucketing ready to use and the first polling will immediately check for an update.
     * If the shape of an element is not correct, an error log will give the reason why.
     */
    initialBucketing?: BucketingDTO;
    /**
     * An array of initial campaigns to be used by the SDK.
     */
    initialCampaigns?: CampaignDTO[];
    /**
     * This is a set of flag data provided to avoid the SDK to have an empty cache during the first initialization.
     */
    initialFlagsData?: SerializedFlagMetadata[];
    /**
     * If true, it'll automatically call fetchFlags when the bucketing file has updated.
     */
    fetchFlagsOnBucketingUpdated?: boolean;
    /**
     * Callback function that will be called when the fetch flags status changes.
     *
     * @param newStatus - The new status of the flags fetch.
     * @param reason - The reason for the status change.
     */
    onFlagsStatusChanged?: ({ status, reason }: FlagsStatus) => void;
    /**
     * If true, the newly created visitor instance won't be saved and will simply be returned. Otherwise, the newly created visitor instance will be returned and saved into the Flagship.
     *
     * Note: By default, it is false on server-side and true on client-side.
     */
    shouldSaveInstance?: boolean;
}
/**
 * Represents the output of the `useFlagship` hook.
 */
export type UseFlagshipOutput = {
    /**
     * The visitor ID.
     */
    visitorId?: string;
    /**
     * The anonymous ID.
     */
    anonymousId?: string | null;
    /**
     * The visitor context.
     */
    context?: Record<string, primitive>;
    /**
     * Indicates whether the visitor has consented for protected data usage.
     */
    hasConsented?: boolean;
    /**
     * Sets whether the visitor has consented for protected data usage.
     * @param hasConsented - True if the visitor has consented, false otherwise.
     */
    setConsent: (hasConsented: boolean) => void;
    readonly sdkStatus: FSSdkStatus;
    readonly flagsStatus?: FlagsStatus;
    /**
     * Updates the visitor context values, matching the given keys, used for targeting.
     * A new context value associated with this key will be created if there is no previous matching value.
     * Context keys must be strings, and value types must be one of the following: number, boolean, string.
     * @param context - A collection of keys and values.
     */
    updateContext(context: Record<string, primitive>): void;
    /**
     * Clears the actual visitor context.
     */
    clearContext(): void;
    /**
     * Authenticates an anonymous visitor.
     * @param visitorId - The visitor ID.
     */
    authenticate(visitorId: string): void;
    /**
     * Changes an authenticated visitor to an anonymous visitor.
     */
    unauthenticate(): void;
    /**
     * Sends a hit or multiple hits to the Flagship server.
     * @param hit - The hit or array of hits to send.
     */
    sendHits(hit: IHit): Promise<void>;
    sendHits(hits: IHit[]): Promise<void>;
    sendHits(hits: IHit | IHit[]): Promise<void>;
    /**
     * Return a [Flag](#flag-class)  object by its key.
     *  If no flag matches the given key, an empty flag will be returned.
     * Call exists() to check if the flag has been found.
     * @param key - The flag key.
     * @param defaultValue - The default value.
     * @returns The flag object.
     */
    getFlag(key: string): IFSFlag;
    /**
     * Invokes the `decision API` or refers to the `bucketing file` to refresh all campaign flags based on the visitor's context.
     */
    fetchFlags: () => Promise<void>;
    /**
     * Batches and sends all hits that are in the pool before the application is closed.
     * @returns A promise that resolves when all hits are sent.
     */
    close(): Promise<void>;
    /**
    * Returns a collection of all flags fetched for the visitor.
    * @returns An IFSFlagCollection object.
    */
    getFlags(): IFSFlagCollection;
    /**
     * Collects Emotion AI data for the visitor.
     */
    collectEAIEventsAsync(): Promise<void>;
};