import type { ArkmeUnifiedTimelineEvent } from './unified-chat-timeline.js';
/** Public facts. Counts describe one frozen cohort, never read acknowledgements. */
export interface ArkmeMessageSyncProgress {
    accountKey: string;
    cycle: number;
    revision: number;
    phase: 'idle' | 'discovering' | 'syncing' | 'paused' | 'unsupported';
    completed: number;
    total: number;
    pending: number;
    terminal: number;
    retryAtMillis?: number;
    reason?: 'network' | 'storage' | 'authentication' | 'upstream' | 'capacity';
}
export type ChatSyncState = 'available' | 'removed' | 'restricted' | 'pending' | 'missing';
export interface ChatSyncWork {
    id: string;
    revision: number;
    version: number;
    state: ChatSyncState;
    sequence: number;
    unread: boolean;
    eventId?: string;
    itemKey?: string;
    event?: ArkmeUnifiedTimelineEvent;
}
export interface ChatSyncSession {
    uid: string;
    kind: number;
    membership: number;
    accessible: boolean;
    complete: boolean;
    position: Record<string, unknown>;
    cacheRequired: boolean;
    work: ChatSyncWork[];
    scope?: string;
    sourceKey?: string;
}
export interface ChatSyncPage {
    checkpoint: string;
    hasMore: boolean;
    retry: boolean;
    manifest: boolean;
    sessions: ChatSyncSession[];
    /** Raw authorized bodies exist only between transport and Host projection. */
    bodies: Map<string, Record<string, unknown>[]>;
}
export interface ChatSyncPlan {
    progress: ArkmeMessageSyncProgress;
    checkpoint: string;
    epoch: number;
    active: boolean;
}
export interface ChatSyncBatch {
    uid: string;
    kind: number;
    membership: number;
    work: ChatSyncWork[];
}
export interface ChatSyncLocalPage {
    events: ArkmeUnifiedTimelineEvent[];
    before?: number;
    revision: number;
}
export type ChatSyncCommand = {
    action: 'begin';
    account: string;
} | {
    action: 'status';
    account: string;
} | {
    action: 'ack';
    account: string;
    sourceKey: string;
    through: number;
} | {
    action: 'manifest' | 'commit';
    account: string;
    epoch: number;
    expectedCheckpoint: string;
    page: Omit<ChatSyncPage, 'bodies'>;
    ticket: number;
    now: number;
} | {
    action: 'freeze' | 'finish';
    account: string;
    epoch: number;
} | {
    action: 'pending';
    account: string;
    epoch: number;
    now: number;
    limit: number;
} | {
    action: 'ranges';
    account: string;
    epoch: number;
} | {
    action: 'read';
    scope: string;
    anchorId?: string;
    limit: number;
    before?: number;
};
export declare function parseChatSyncPage(raw: unknown, manifest: boolean): ChatSyncPage;
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