/**
 * Compute content hash for change detection (first 16 chars of SHA-256)
 */
export declare function computeContentHash(markdown: string): Promise<string>;
export interface DatabaseAdapter {
    all: <T>(sql: string, params?: unknown[]) => Promise<T[]>;
    first: <T>(sql: string, params?: unknown[]) => Promise<T | undefined>;
    exec: (sql: string, params?: unknown[]) => Promise<void>;
    close?: () => Promise<void>;
}
export interface InitSchemaOptions {
    /** FTS5 tokenizer (default: 'unicode61 remove_diacritics 2'). Use 'trigram' for CJK locales. */
    ftsTokenizer?: string;
}
/**
 * Initialize database schema with version checking.
 * Rebuilds when SCHEMA_VERSION changes or when the configured FTS5 tokenizer
 * differs from the one baked into the existing virtual table (e.g. user added
 * a CJK locale on a later deploy).
 */
export declare function initSchema(db: DatabaseAdapter, options?: InitSchemaOptions): Promise<void>;
/**
 * Normalize route to storage key format
 * e.g., '/about/team' -> 'about:team', '/' -> 'index'
 */
export declare function normalizeRouteKey(route: string): string;
/**
 * Compress data to base64 gzip
 */
export declare function compressToBase64(data: unknown): Promise<string>;
/**
 * Decompress from base64 gzip
 */
export declare function decompressFromBase64<T>(base64: string): Promise<T>;
export interface PageInput {
    route: string;
    title: string;
    description: string;
    markdown: string;
    headings: string;
    keywords: string[];
    contentHash?: string;
    updatedAt: string;
    isError?: boolean;
    source?: 'prerender' | 'runtime';
    locale?: string;
}
export interface PageOutput {
    route: string;
    title: string;
    description: string;
    markdown: string;
    headings: string;
    keywords: string[];
    contentHash?: string;
    updatedAt: string;
    isError: boolean;
    locale: string;
}
export interface PageMetaOutput {
    route: string;
    title: string;
    description: string;
    headings: string;
    keywords: string[];
    contentHash?: string;
    updatedAt: string;
    isError: boolean;
    locale: string;
}
/**
 * Insert or update a page
 */
export declare function insertPage(db: DatabaseAdapter, page: PageInput): Promise<void>;
export interface QueryAllPagesOptions {
    includeErrors?: boolean;
    excludeMarkdown?: boolean;
}
/**
 * Query all pages from database
 * @param db - Database adapter
 * @param options - Query options
 * @param options.excludeMarkdown - If true, omit markdown field to reduce memory usage
 */
export declare function queryAllPages(db: DatabaseAdapter, options?: QueryAllPagesOptions & {
    excludeMarkdown: true;
}): Promise<PageMetaOutput[]>;
export declare function queryAllPages(db: DatabaseAdapter, options?: QueryAllPagesOptions & {
    excludeMarkdown?: false;
}): Promise<PageOutput[]>;
export declare function queryAllPages(db: DatabaseAdapter, options?: QueryAllPagesOptions): Promise<PageOutput[] | PageMetaOutput[]>;
export interface DumpRow {
    route: string;
    route_key: string;
    title: string;
    description: string;
    markdown: string;
    headings: string;
    keywords: string;
    content_hash: string | null;
    updated_at: string;
    indexed_at: number;
    is_error: number;
    indexed: number;
    source: string;
    last_seen_at: number | null;
    indexnow_synced_at: number | null;
    locale: string | null;
}
/**
 * Export database as compressed dump (base64 gzip) using batched streaming
 * Processes rows in batches to avoid loading entire database into memory
 */
export declare function exportDbDump(db: DatabaseAdapter): Promise<string>;
/**
 * Import dump into database
 * Sets indexed=1, last_seen_at=indexed_at, indexnow_synced_at=indexed_at
 * (pages from dump were already indexed and synced during build, no need to re-notify)
 */
export declare function importDbDump(db: DatabaseAdapter, rows: DumpRow[]): Promise<void>;