import type { ArkmeSourceItem, ArkmeGroupAvatarPresentation } from './types.js';
export declare const COMMON_GROUP_PAGE_SIZE = 20;
/** Public projection; internal chat identities never cross the Host boundary. */
export interface ArkmeCommonGroupPage {
    items: Array<{
        source: ArkmeSourceItem;
        memberCount: number;
    }>;
    totalCached: number;
    hasMore: boolean;
    nextCursor?: string;
    syncedAtMillis: number;
    revision: number;
    syncHasMore: boolean;
}
export interface CommonGroupRow {
    uid: string;
    title: string;
    memberCount: number;
    groupAvatar?: ArkmeGroupAvatarPresentation;
}
export interface CommonGroupCheckpoint {
    revision: number;
    phase: 'check' | 'discover' | 'complete';
    after: string;
    syncedAtMillis: number;
}
export interface CommonGroupLocalPage {
    items: CommonGroupRow[];
    total: number;
    hasMore: boolean;
    checkpoint: CommonGroupCheckpoint;
}
/** Business persistence port: every applied batch and its checkpoint are atomic. */
export interface CommonGroupStore {
    get(scope: string, peer: string, uids: string[]): CommonGroupRow[];
    read(scope: string, peer: string, after?: string): CommonGroupLocalPage;
    apply(scope: string, peer: string, expected: CommonGroupCheckpoint, changes: {
        items: CommonGroupRow[];
        removed: string[];
        phase: CommonGroupCheckpoint['phase'];
        after: string;
    }): boolean;
}
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