import { SmrtCollection } from '@happyvertical/smrt-core';
import { ChatParticipant } from '../models/ChatParticipant.js';
export declare class ChatParticipantCollection extends SmrtCollection<ChatParticipant> {
    static readonly _itemClass: typeof ChatParticipant;
    getByRoom(roomId: string): Promise<ChatParticipant[]>;
    getByProfile(profileId: string): Promise<ChatParticipant[]>;
    findMembership(roomId: string, profileId: string, tenantId?: string): Promise<ChatParticipant | null>;
    /**
     * Returns the participant row only if the profile is an ACTIVE member of the
     * room (not left/kicked/banned). Used by ChatService to gate sends and reads
     * on room membership (S5 #1392, IDOR hardening).
     *
     * `tenantId` is REQUIRED and always bound into the WHERE clause so a membership
     * lookup can never resolve a row belonging to another tenant, even when no ALS
     * tenant context is active to drive the tenancy interceptor (defense in depth).
     * Making it a required parameter (rather than optional) closes the hole where a
     * caller could omit it and silently drop the tenant predicate from the query.
     */
    findActiveMembership(roomId: string, profileId: string, tenantId: string): Promise<ChatParticipant | null>;
    /** True when the profile is an active member of the room (tenant-bound). */
    isActiveMember(roomId: string, profileId: string, tenantId: string): Promise<boolean>;
    getOnlineInRoom(roomId: string): Promise<ChatParticipant[]>;
    getAdminsInRoom(roomId: string): Promise<ChatParticipant[]>;
    countInRoom(roomId: string): Promise<number>;
}
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