import { AbstractControl, AbstractControlOptions, FormGroup, ValidationErrors } from "@angular/forms";
import { SafeAny, SafeBoolean } from "../type/type";
export declare class BzControlUtils {
    /**
     * Delete errors.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {AbstractControl | null} control
     * @param {string[] | string} errorKeys
     */
    static deleteErrors(control: AbstractControl | null, errorKeys: string[] | string): void;
    /**
     * Manage formGroup validators.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {Function[] | Function} funcs
     * @param {Function[] | Function} asyncFunc
     * @param {'change' | 'blur' | 'submit'} updateOn
     * @returns
     */
    static formValidators(funcs?: Function[] | Function, asyncFunc?: Function[] | Function, updateOn?: 'change' | 'blur' | 'submit'): AbstractControlOptions;
    /**
     * Get error message.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {FormGroup} formGroup
     * @param {string} formControlName
     * @param {string} errorKey
     * @returns
     */
    static getErrorMessage(formGroup: FormGroup, formControlName: string, errorKey: string): string;
    /**
     * Set error.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {AbstractControl | null} control
     * @param {ValidationErrors | null} errors
     * @param {{ emitEvent?: boolean }} opt
     */
    static setErrors(control: AbstractControl | null, errors: ValidationErrors | null, opt?: {
        emitEvent?: boolean;
    }): void;
    /**
     * Set error message.
     *
     * @author Federico Gambardella
     * @param {FormGroup} formGroup
     * @param {string} formControlName
     * @param {string} messageKey
     * @param {string} message
     * @returns {string}
     */
    static setErrorMessage(formGroup: FormGroup, formControlName: string, messageKey: string, message: string): string;
    /**
     * Manage formControl validator.
     *
     * @author Federico Gambardella
     * @param {Function} func
     * @param {SafeAny} args
     * @returns {ValidationErrors}
     */
    static controlValidator(func: Function, ...args: SafeAny): ValidationErrors;
    /**
     * Build validation object
     *
     * @author Federico Gambardella
     * @param {boolean} condition
     * @param {string} key
     * @returns
     */
    static validate(condition: boolean, key: string): any;
    /**
     * Check if formcontrol has an error.
     *
     * @author Federico Gambardella
     * @param {FormGroup} form
     * @param {string} formControlName
     * @param {string} key
     * @returns
     */
    static hasError(form: FormGroup, formControlName: string, key: string): SafeBoolean;
    /**
   * Merge validators.
   *
   * @author Federico Gambardella<fedega86@libero.it>
   * @param {Object[]} data
   * @returns
   */
    static mergeValidators(...data: Object[]): any;
    /**
     * Check if control as required validator.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {SafeAny} abstractControl
     * @returns
     */
    static hasRequiredValitor(abstractControl: SafeAny): boolean;
    /**
     * Manage validator.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {Function[] | Function | undefined} funcs
     * @returns {SafeAny}
     */
    private static _manageValidator;
    /**
     * Return validation function.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {Function} func
     * @returns {SafeAny}
     */
    private static _validatorFunc;
    /**
     * Delete error if exsist.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {AbstractControl | null} control
     * @param {string} errorKey
     * @returns {boolean}
     */
    private static _deleteIfError;
}