import { ComponentRef, EventEmitter } from '@angular/core';
import { Observable } from 'rxjs';
import { ComponentIO } from './host-directive';
import { ImportsOrchestratorQueueItem } from './service';
export interface ImportLifecycle {
    /**
     * Emits when the import has been added to the queue (not started though). As the [import]-@Input may change, this may emit multiple times.
     */
    importQueued: EventEmitter<void>;
    /**
     * Emits when importing has started. As the [import]-@Input may change, this may emit multiple times.
     */
    importStarted: EventEmitter<void>;
    /**
     * Emits when importing has finished. As the [import]-@Input may change, this may emit multiple times.
     * The emitted value is whatever is returned as the result of the resolve function
     */
    importFinished: EventEmitter<unknown>;
    /**
     * Emits when importing encounters an error. As the [import]-@Input may change, this may emit multiple times.
     */
    importErrored: EventEmitter<unknown>;
    /**
     * Emits when importing has finished. Emits for every component that was imported.
     * When bootstrapping multiple components, this will emit multiple times
     * Plus, as the [import]-@Input may change, this may emit multiple times for the same component.
     *
     */
    importComponent?: EventEmitter<ComponentRef<unknown>>;
}
type Item = Pick<ImportsOrchestratorQueueItem, 'identifier' | 'priority'>;
export interface ImportsInterceptorHooks {
    queued: Observable<Item>;
    start: Observable<Item>;
    finish: Observable<Item>;
    error: Observable<[Item, unknown]>;
}
export interface ImportObservableComponentIO {
    readonly inputs$: Observable<ComponentIO>;
    readonly outputs$: Observable<ComponentIO>;
}
export type ImportsInterceptor = (identifier: string, hooks: ImportsInterceptorHooks) => void;
export {};