import { HotMesh } from '../hotmesh';
import { SearchService } from '../search';
import { WorkflowSearchOptions } from '../../types/meshflow';
/**
 * The Search module provides methods for reading and
 * writing record data to a workflow. The instance
 * methods exposed by this class are available
 * for use from within a running workflow. The following example
 * uses search to set a `name` field and increment a
 * `counter` field. The workflow returns the incremented value.
 *
 * @example
 * ```typescript
 * //searchWorkflow.ts
 * import { workflow } from '@hotmeshio/hotmesh';

 * export async function searchExample(name: string): Promise<{counter: number}> {
 *   const search = await workflow.search();
 *   await search.set({ name });
 *   const newCounterValue = await search.incr('counter', 1);
 *   return { counter: newCounterValue };
 * }
 * ```
 */
export declare class Search {
    /**
     * @private
     */
    jobId: string;
    /**
     * @private
     */
    searchSessionId: string;
    /**
     * @private
     */
    searchSessionIndex: number;
    /**
     * @private
     */
    hotMeshClient: HotMesh;
    /**
     * @private
     */
    search: SearchService<any> | null;
    /**
     * @private
     */
    cachedFields: Record<string, string>;
    /**
     * @private
     */
    constructor(workflowId: string, hotMeshClient: HotMesh, searchSessionId: string);
    /**
     * Prefixes the key with an underscore to keep separate from the
     * activity and job history (and searchable via HKEYS)
     *
     * @private
     */
    safeKey(key: string): string;
    /**
     * For those deployments with search configured, this method
     * will configure the search index with the provided schema.
     *
     * @private
     * @example
     * const search = {
     *  index: 'my_search_index',
     *  prefix: ['my_workflow_prefix'],
     *  schema: {
     *   field1: { type: 'TEXT', sortable: true },
     *   field2: { type: 'NUMERIC', sortable: true }
     *  }
     * }
     * await Search.configureSearchIndex(hotMeshClient, search);
     */
    static configureSearchIndex(hotMeshClient: HotMesh, search?: WorkflowSearchOptions): Promise<void>;
    /**
     * Returns an array of search indexes ids
     *
     * @example
     * const searchIndexes = await Search.listSearchIndexes(hotMeshClient);
     */
    static listSearchIndexes(hotMeshClient: HotMesh): Promise<string[]>;
    /**
     * increments the index to return a unique search session guid when
     * calling any method that produces side effects (changes the value)
     * @private
     */
    getSearchSessionGuid(): string;
    /**
     * Sets the fields listed in args. Returns the
     * count of new fields that were set (does not
     * count fields that were updated)
     *
     * @example
     * const search = await workflow.search();
     * const count = await search.set({ field1: 'value1', field2: 'value2' });
     */
    set(...args: any[]): Promise<number>;
    /**
     * Returns the value of the record data field, given a field id
     *
     * @example
     * const search = await workflow.search();
     * const value = await search.get('field1');
     */
    get(id: string): Promise<string>;
    /**
     * Returns the values of all specified fields in the HASH stored at key.
     */
    mget(...args: string[]): Promise<string[]>;
    /**
     * Deletes the fields provided as args. Returns the
     * count of fields that were deleted.
     *
     * @example
     * const search = await workflow.search();
     * const count = await search.del('field1', 'field2', 'field3');
     */
    del(...args: string[]): Promise<number | void>;
    /**
     * Increments the value of a float field by the given amount. Returns the
     * new value of the field after the increment. Pass a negative
     * number to decrement the value.
     *
     * @example
     * const search = await workflow.search();
     * const count = await search.incr('field1', 1.5);
     */
    incr(key: string, val: number): Promise<number>;
    /**
     * Multiplies the value of a field by the given amount. Returns the
     * new value of the field after the multiplication. NOTE:
     * this is exponential multiplication.
     *
     * @example
     * const search = await workflow.search();
     * const product = await search.mult('field1', 1.5);
     */
    mult(key: string, val: number): Promise<number>;
}