import type { Database as DatabaseType } from 'better-sqlite3';
export type SearchScope = 'all' | 'topic' | 'subtree';
export type SearchType = 'all' | 'topics' | 'messages';
export interface SearchOptions {
    scope?: SearchScope;
    topicId?: number;
    includeArchived?: boolean;
    limit?: number;
}
export interface TopicSearchResult {
    type: 'topic';
    topicId: number;
    topicName: string;
    topicPath: string;
    excerpt: string;
    rank: number;
}
export interface MessageSearchResult {
    type: 'message';
    messageId: number;
    topicId: number;
    topicName: string;
    topicPath: string;
    authorName: string;
    createdAt: string;
    excerpt: string;
    rank: number;
}
export interface SearchResponse {
    query: string;
    topics: TopicSearchResult[];
    messages: MessageSearchResult[];
}
export declare function searchAll(db: DatabaseType, query: string, type?: SearchType, options?: SearchOptions): SearchResponse;
export declare function searchTopics(db: DatabaseType, query: string, options?: SearchOptions): TopicSearchResult[];
export declare function searchMessages(db: DatabaseType, query: string, options?: SearchOptions): MessageSearchResult[];
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