export type MeshReceiptKind = "device_delivered" | "account_delivered" | "read";
export type MeshDeliveryStage = "accepted" | "announced" | "delivered_to_device" | "delivered_to_account" | "read";
export type ChatMessageStatus = "local_only" | "sent" | "delivered" | "read" | "repairing";
export interface ChatAnnouncement {
    profile: "mesh.chat.v1";
    roomId: string;
    authorId: string;
    sequence: number;
    objectPath: string;
    sentAtMs?: number;
    attachmentPath?: string | null;
}
export interface ChatReceipt {
    profile: "mesh.chat.v1";
    roomId: string;
    authorId: string;
    recipientId: string;
    kind: MeshReceiptKind;
    receivedThrough: number;
}
export interface ChatHeartbeat {
    streamId: string;
    authorId: string;
    earliestRetainedSeq: number;
    latestAvailableSeq: number;
}
export interface ChatRepairPlanInput {
    roomId: string;
    authorId: string;
    earliestRetainedSeq: number;
    latestAvailableSeq: number;
    knownSequences: Iterable<number>;
}
export declare function chatStreamId(roomId: string): string;
export declare function chatAnnouncementTopic(roomId: string): string;
export declare function chatReceiptTopic(roomId: string): string;
export declare function chatMessageObjectPath(roomId: string, authorId: string, sequence: number): string;
export declare function createChatAnnouncement(roomId: string, authorId: string, sequence: number, options?: {
    sentAtMs?: number;
    attachmentPath?: string | null;
}): ChatAnnouncement;
export declare function createChatReceipt(roomId: string, authorId: string, recipientId: string, kind: MeshReceiptKind, receivedThrough: number): ChatReceipt;
export declare function createChatHeartbeat(roomId: string, authorId: string, earliestRetainedSeq: number, latestAvailableSeq: number): ChatHeartbeat;
export declare function chatStatusFromMeshStage(stage: MeshDeliveryStage, options?: {
    repairPending?: boolean;
}): ChatMessageStatus;
export declare function chatRepairTargetsFromHeartbeat(input: ChatRepairPlanInput): string[];
//# sourceMappingURL=mesh-chat.d.ts.map