import type { ArkmeBotSummary, ArkmeConversationDirectoryVisibility, ArkmeSourceItem } from '../types.js';
export type ConversationVisibilityOverlay = ReadonlySet<string>;
export type ConversationVisibilityHydration = ReadonlySet<string>;
export interface ConversationVisibilityActivityEvidence {
    sequence: number;
    activityAtMillis: number;
}
export interface ConversationVisibilityScope {
    sourceRefs: string[];
    botRefs: string[];
    keyByHandle: ReadonlyMap<string, string>;
    keys: ReadonlySet<string>;
}
export declare function conversationSourceVisibilityKey(source: Pick<ArkmeSourceItem, 'sourceRef' | 'sourceKey'>): string;
export declare function conversationBotVisibilityKey(bot: Pick<ArkmeBotSummary, 'botRef' | 'directoryKey'>): string;
export declare function conversationVisibilityKey(kind: 'source' | 'bot', stableKey: string): string;
export declare function conversationSourceActivityEvidence(source: Pick<ArkmeSourceItem, 'activeAtMillis' | 'latestSequence'>): ConversationVisibilityActivityEvidence;
export declare function conversationBotActivityEvidence(bot: Pick<ArkmeBotSummary, 'createdAtMillis' | 'latestMessageAtMillis' | 'conversationListActivityAtMillis'>): ConversationVisibilityActivityEvidence;
export declare function conversationVisibilityActivityAdvanced(before: ConversationVisibilityActivityEvidence, current: ConversationVisibilityActivityEvidence): boolean;
export declare function emptyConversationVisibilityOverlay(): ConversationVisibilityOverlay;
export declare function emptyConversationVisibilityHydration(): ConversationVisibilityHydration;
export declare function markConversationVisibilityScopeHydrated(current: ConversationVisibilityHydration, scope: ConversationVisibilityScope): ConversationVisibilityHydration;
export declare function conversationVisibilityScope(sources: readonly ArkmeSourceItem[], bots: readonly ArkmeBotSummary[]): ConversationVisibilityScope;
export declare function applyConversationVisibilityQuerySuccess(current: ConversationVisibilityOverlay, scope: ConversationVisibilityScope, result: ArkmeConversationDirectoryVisibility, protectedKeys?: ConversationVisibilityOverlay): ConversationVisibilityOverlay;
export declare function applyConversationVisibilityQueryFailure(current: ConversationVisibilityOverlay, scope: ConversationVisibilityScope, protectedKeys?: ConversationVisibilityOverlay): ConversationVisibilityOverlay;
export declare function dismissConversationVisibilityEntry(current: ConversationVisibilityOverlay, entryKind: 'source' | 'bot', stableKey: string): ConversationVisibilityOverlay;
//# sourceMappingURL=conversation-directory-visibility-overlay.d.ts.map