import type { TeamConversation } from '../team-app-contract.js';
import type { TeamConversationGroup } from './team-conversation-directory.js';
export type TeamEntryTarget = {
    kind: 'folder';
    group: TeamConversationGroup;
} | {
    kind: 'conversation';
    conversation: TeamConversation;
};
type Removal = {
    at: number;
    sequences: Record<string, number>;
};
type Preference = {
    pinned: boolean;
    removal?: Removal;
};
export type TeamDirectoryPreferences = Readonly<Record<string, Preference>>;
export declare const teamConversationEntryKey: (c: TeamConversation) => string;
export declare const teamFolderEntryKey: (channelId: string) => string;
export declare const teamEntryKey: (target: TeamEntryTarget) => string;
export declare const teamEntryConversations: (target: TeamEntryTarget) => TeamConversation[];
export declare function teamEntryHidden(preferences: TeamDirectoryPreferences, target: TeamEntryTarget): boolean;
export declare const teamEntryPinned: (preferences: TeamDirectoryPreferences, target: TeamEntryTarget) => boolean;
/** Only stable entry identifiers and message watermarks are persisted, never message bodies or signed refs. */
export declare class TeamDirectoryPreferenceStore {
    private storage;
    private durable;
    private cache;
    private listeners;
    constructor(storage: () => Pick<Storage, 'getItem' | 'setItem'> | undefined, durable?: boolean);
    subscribe: (listener: () => void) => () => void;
    invalidate: () => void;
    read: (account: string) => TeamDirectoryPreferences;
    private write;
    pin(account: string, target: TeamEntryTarget, pinned: boolean): Promise<void> | undefined;
    remove(account: string, target: TeamEntryTarget, at?: number): Promise<void> | undefined;
    restore(account: string, key: string): void | Promise<void>;
    private restoreLoaded;
    /** Unknown visitors may merely be older directory pages. Verify their latest actual message before restoring a folder. */
    reconcile(account: string, conversations: TeamConversation[], latestMessageAt: (c: TeamConversation) => Promise<number>, signal: AbortSignal): Promise<void>;
}
export declare const teamDirectoryPreferences: TeamDirectoryPreferenceStore;
export declare function useTeamDirectoryPreferences(account: string): Readonly<Record<string, Preference>>;
export {};
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