export type MessageFeedbackRating = 'positive' | 'negative';
export type MessageFeedbackSubmitResult = {
    ok: true;
} | {
    ok: false;
    message?: string;
};
export type MessageFeedbackConfig = {
    /** Reason chips offered on a positive vote. Empty or omitted: 👍 submits directly. */
    positiveReasons?: readonly string[];
    /** Reason chips offered on a negative vote. */
    negativeReasons?: readonly string[];
    /** Require a justification on a negative vote: at least one reason chip when negativeReasons are configured, otherwise a non-empty comment. */
    requireReason?: boolean;
    /**
     * Persists a vote. While this promise is pending the form remains open and
     * disabled; it closes only after `{ ok: true }`. On failure, return a safe
     * user-facing message and the draft remains available for retry.
     */
    submit?: MessageFeedbackSubmitHandler;
};
export type MessageFeedbackPayload = {
    conversationId: string;
    messageId: string;
    rating: MessageFeedbackRating;
    reasons: string[];
    comment: string;
};
export type MessageFeedbackHandler = (payload: MessageFeedbackPayload) => void;
export type MessageFeedbackSubmitHandler = (payload: MessageFeedbackPayload) => Promise<MessageFeedbackSubmitResult>;
export declare function dispatchMessageFeedback(payload: MessageFeedbackPayload, submit: MessageFeedbackSubmitHandler | undefined, emit: MessageFeedbackHandler): Promise<MessageFeedbackSubmitResult>;
export declare function provideMessageFeedback(handler: MessageFeedbackHandler): void;
export declare function useMessageFeedback(): {
    emit(payload: MessageFeedbackPayload): void;
};