import { SearchType } from "./storage.mjs";
import { EngineError } from "./errors.mjs";
import { Result } from "gscdump/result";
import { TableName } from "@gscdump/contracts";
export type SyncTableName = Extract<TableName, 'pages' | 'queries' | 'countries' | 'page_queries' | 'dates'>;
export declare const TABLES_BY_SEARCH_TYPE: Record<SearchType, readonly SyncTableName[]>;
export declare function parseEnabledSearchTypes(raw: string | null | undefined): SearchType[];
/**
 * Errors-as-values core for {@link validateEnabledSearchTypes}: returns a typed
 * `invalid-search-types` `EngineError` instead of throwing, so a host saving the
 * persisted config can map a bad value to a 4xx rather than a 500.
 */
export declare function validateEnabledSearchTypesResult(value: unknown): Result<SearchType[], EngineError>;
export declare function validateEnabledSearchTypes(value: unknown): SearchType[];
export declare const TABLE_TIERS: {
  readonly pages: "critical";
  readonly queries: "critical";
  readonly countries: "standard";
  readonly dates: "standard";
  readonly page_queries: "extended";
};
export type TieredTableName = keyof typeof TABLE_TIERS;
export type TableTier = 'critical' | 'standard' | 'extended';
export type DateWeight = 'fresh' | 'recent' | 'historical';
export declare function getTableTier(table: string): TableTier;
export declare function getTablesForTier(tier: TableTier): TieredTableName[];
export declare function getDateWeight(date: string, now?: Date): DateWeight;
export declare const TIER_PRIORITY: Record<TableTier, number>;
export declare const WEIGHT_PRIORITY: Record<DateWeight, number>;
export declare const MAX_GSC_PAGES_R2 = 40;
export declare const ROW_LIMIT_R2 = 25000;
export declare const MIN_SYNC_IMPRESSIONS = 1;
export declare const MIN_COUNTRY_IMPRESSIONS = 10;
export declare const MAX_SITEMAP_URLS_PER_SITE = 50000;
export declare const MAX_TRACKED_URLS_PER_SITE = 200000;