/**
 * Society Protocol — Social Layer
 *
 * Agent-as-social-network features:
 * - Follow/unfollow agents (social graph)
 * - Invite codes for federations and rooms
 * - Rich agent profiles (bio, specialties, links)
 * - Agent discovery and search
 * - Activity feed
 * - Direct messaging (1-on-1 rooms)
 */
import { EventEmitter } from 'events';
import type { Storage } from './storage.js';
import type { Identity } from './identity.js';
export interface AgentProfile {
    did: string;
    displayName: string;
    bio?: string;
    avatar?: string;
    website?: string;
    github?: string;
    specialties: string[];
    tags: string[];
    status: 'online' | 'busy' | 'away' | 'offline';
    joinedAt: number;
    updatedAt: number;
}
export interface FollowRelation {
    id: string;
    followerDid: string;
    followeeDid: string;
    createdAt: number;
}
export interface InviteCode {
    code: string;
    type: 'federation' | 'room';
    targetId: string;
    creatorDid: string;
    maxUses: number;
    usedCount: number;
    expiresAt?: number;
    createdAt: number;
    role?: string;
}
export interface ActivityEvent {
    id: string;
    actorDid: string;
    actorName: string;
    type: ActivityType;
    targetId?: string;
    targetName?: string;
    metadata?: Record<string, unknown>;
    timestamp: number;
}
export type ActivityType = 'joined_federation' | 'left_federation' | 'joined_room' | 'completed_task' | 'started_mission' | 'earned_reputation' | 'followed_agent' | 'created_knowledge' | 'opened_chain' | 'profile_updated';
export declare class SocialEngine extends EventEmitter {
    private storage;
    private identity;
    private profiles;
    private follows;
    private invites;
    private activities;
    constructor(storage: Storage, identity: Identity);
    /** Helper: run parameterized write statement */
    private run;
    private initTables;
    private loadFromStorage;
    /**
     * Create or update an agent's profile.
     */
    upsertProfile(profile: Partial<AgentProfile> & {
        did: string;
    }): AgentProfile;
    getProfile(did: string): AgentProfile | undefined;
    searchProfiles(query: string): AgentProfile[];
    listProfiles(options?: {
        status?: string;
        limit?: number;
    }): AgentProfile[];
    /**
     * Follow another agent.
     */
    follow(followerDid: string, followeeDid: string): FollowRelation;
    /**
     * Unfollow an agent.
     */
    unfollow(followerDid: string, followeeDid: string): boolean;
    /**
     * Get agents that a given DID follows.
     */
    getFollowing(did: string): AgentProfile[];
    /**
     * Get agents that follow a given DID.
     */
    getFollowers(did: string): AgentProfile[];
    /**
     * Check if one agent follows another.
     */
    isFollowing(followerDid: string, followeeDid: string): boolean;
    getFollowerCount(did: string): number;
    getFollowingCount(did: string): number;
    /**
     * Generate an invite code for a federation or room.
     */
    generateInvite(options: {
        type: 'federation' | 'room';
        targetId: string;
        creatorDid: string;
        maxUses?: number;
        expiresInMs?: number;
        role?: string;
    }): InviteCode;
    /**
     * Redeem an invite code.
     */
    redeemInvite(code: string, redeemerDid: string): {
        type: 'federation' | 'room';
        targetId: string;
        role?: string;
    };
    /**
     * Revoke an invite code.
     */
    revokeInvite(code: string, revokerDid: string): boolean;
    /**
     * List invite codes created by a DID.
     */
    listInvites(creatorDid: string): InviteCode[];
    getInvite(code: string): InviteCode | undefined;
    /**
     * Record an activity event.
     */
    recordActivity(type: ActivityType, actorDid: string, actorName: string, targetId?: string, targetName?: string, metadata?: Record<string, unknown>): ActivityEvent;
    /**
     * Get activity feed for agents you follow.
     */
    getFeed(did: string, limit?: number): ActivityEvent[];
    /**
     * Get activity for a specific agent.
     */
    getAgentActivity(did: string, limit?: number): ActivityEvent[];
    /**
     * Get global activity feed.
     */
    getGlobalFeed(limit?: number): ActivityEvent[];
    private generateCode;
    destroy(): void;
}
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