import { CBFileSystem } from '../node/file-system';
import { IparamInputs, IparamDefns } from '../types/common';
/**
 * Service for managing parameters
 * Handles loading, validation, and management of iparams and inputs
 */
export declare class IparamsService {
    private fileSystem;
    private iparamDefnsValidator;
    private inputsValidator;
    constructor(fileSystem: CBFileSystem);
    private getIparamsFilePath;
    private getInputsFilePath;
    /**
     * Checks if iparams.json file exists
     * @param {string} appDir - The application directory
     * @returns {boolean} True if the file exists
     */
    iparamsFileExists(appDir: string): boolean;
    /**
     * Loads and validates the iparamDefns
     * @param {string} appDir - The application directory
     * @returns {IparamDefns} The validated iparamDefns
     * @throws {Error} If the iparamDefns is invalid or cannot be read
     */
    loadIparamDefns(appDir: string): IparamDefns;
    /**
     * Loads iparam inputs (without validation against defns). Validates file shape only.
     * @param {string} appDir - The application directory
     * @returns {IparamInputs} The loaded inputs
     * @throws {Error} If `iparams.local.json` is missing, invalid JSON, or not a plain object
     */
    loadInputs(appDir: string): IparamInputs;
    /**
     * Merges inputs with defaults per section.
     * @param {IparamInputs} inputs - The provided input values
     * @param {IparamDefns} iparamDefns - The iparam defns
     * @returns {IparamInputs} The merged inputs with defaults applied
     * @throws {MissingRequiredParamsError} When required parameters are missing
     */
    mergeInputsWithDefaults(inputs: IparamInputs, iparamDefns: IparamDefns): IparamInputs;
    /**
     * Loads inputs and defns, validates inputs against defns, merges with defaults, returns resolved iparams.
     * @param {string} appDir - The application directory
     * @returns {IparamInputs} The merged inputs with defaults applied
     * @throws {Error} If validation fails, or required parameters are missing and have no defaults
     */
    validateAndGetInputsForExecution(appDir: string): IparamInputs;
    /**
     * Saves the iparamDefns to file
     * @param {string} appDir - The application directory
     * @param {IparamDefns} iparamDefns - The iparamDefns to save
     * @throws {Error} If the iparamDefns is invalid or cannot be written
     */
    saveIparamDefns(appDir: string, iparamDefns: IparamDefns): void;
    /**
     * Loads defns and merges inputs, ensures iparams.local.json exists, then writes.
     * @param {string} appDir - The application directory
     * @param {IparamInputs} inputs - The raw input values from the request
     * @throws {Error} If iparams.json or iparams.local.json is missing, or validation fails
     */
    saveInputs(appDir: string, inputs: IparamInputs): void;
    /**
     * Validates iparams file without loading it
     * @param {string} appDir - The application directory
     * @throws {Error} If the iparamDefns is invalid
     */
    validateIparamDefns(appDir: string): void;
}