import { CreateValue, ReadValue, UpdateValue } from '@dasch-swiss/dsp-js';
import { FormControl, FormGroup, ValidatorFn } from '@angular/forms';
import { Subscription } from 'rxjs';
export declare abstract class BaseValueComponent {
    shouldShowComment: boolean;
    /**
     * Value to be displayed, if any.
     */
    abstract displayValue?: ReadValue;
    /**
     * Sets the mode of the component.
     */
    mode: 'read' | 'update' | 'create' | 'search';
    /**
     * Parent FormGroup that contains all child FormGroups
     */
    parentForm?: FormGroup;
    /**
     * name of the FormGroup, used to add to the parentForm because the name needs to be unique
     */
    formName: string;
    /**
     * Controls if the value should be required.
     */
    valueRequiredValidator: boolean;
    /**
     * FormControl element for the value.
     */
    abstract valueFormControl: FormControl;
    /**
     * FormControl element for the comment on the value.
     */
    abstract commentFormControl: FormControl;
    /**
     * FormGroup that contains FormControl elements.
     */
    abstract form: FormGroup;
    /**
     * Subscription used for when the value changes.
     */
    abstract valueChangesSubscription: Subscription;
    /**
     * Custom validators for a specific value type.
     * Can be initialized to an empty array if not needed.
     */
    abstract customValidators: ValidatorFn[];
    /**
     * Standard implementation for comparison of primitive values.
     * Returns true if two values are equal.
     *
     * @param initValue Initially given value.
     * @param curValue Current value.
     */
    standardValueComparisonFunc(initValue: any, curValue: any): boolean;
    /**
     * Standard implementation to determine if a value or comment have been changed.
     *
     * @param initValue Initially given value.
     * @param initComment Initially given comment.
     * @param commentFormControl FormControl of the current comment.
     */
    standardValidatorFunc: (val: any, comment: string, commentCtrl: FormControl) => ValidatorFn;
    /**
     * Returns the initially given value set via displayValue.
     * Returns null if no value was given.
     */
    abstract getInitValue(): any;
    /**
     * Returns the initially given value comment set via displayValue.
     * Returns null if no value comment was given.
     */
    getInitComment(): string | null;
    /**
     * Resets the form control elements
     * with displayValue's value and value comment.
     * Depending on the mode, validators are reset.
     */
    resetFormControl(): void;
    /**
     * Unsubscribes from the valueChangesSubscription
     */
    unsubscribeFromValueChanges(): void;
    /**
     * Hide comment field by default if in READ mode
     */
    updateCommentVisibility(): void;
    /**
     * Toggles visibility of the comment field regardless of the mode
     */
    toggleCommentVisibility(): void;
    /**
     * Returns a value that is to be created.
     * Returns false if invalid.
     */
    abstract getNewValue(): CreateValue | false;
    /**
     * Returns a value that is to be updated.
     * Returns false if invalid.
     */
    abstract getUpdatedValue(): UpdateValue | false;
    /**
     * Add the value components FormGroup to a parent FormGroup if one is defined
     */
    addToParentFormGroup(name: string, form: FormGroup): void;
    /**
     * Remove the value components FormGroup from a parent FormGroup if one is defined
     */
    removeFromParentFormGroup(name: string): void;
    /**
     * Checks if the value is empty.
     */
    isEmptyVal(): boolean;
}