import { Injectable } from '@angular/core';
import { Subject } from 'rxjs';
import * as i0 from "@angular/core";
/**
 * Message service used in messages and toast components.
 * @group Service
 */
export class MessageService {
    messageSource = new Subject();
    clearSource = new Subject();
    messageObserver = this.messageSource.asObservable();
    clearObserver = this.clearSource.asObservable();
    /**
     * Inserts single message.
     * @param {Message} message - Message to be added.
     * @group Method
     */
    add(message) {
        if (message) {
            this.messageSource.next(message);
        }
    }
    /**
     * Inserts new messages.
     * @param {Message[]} messages - Messages to be added.
     * @group Method
     */
    addAll(messages) {
        if (messages && messages.length) {
            this.messageSource.next(messages);
        }
    }
    /**
     * Clears the message with the given key.
     * @param {string} key - Key of the message to be cleared.
     * @group Method
     */
    clear(key) {
        this.clearSource.next(key || null);
    }
    static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.7", ngImport: i0, type: MessageService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
    static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.3.7", ngImport: i0, type: MessageService });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.7", ngImport: i0, type: MessageService, decorators: [{
            type: Injectable
        }] });
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