import { BaseComponent } from '@common/base/base.component';
import { OnInit, Component, Input, Output, EventEmitter } from '@angular/core';
import { FormGroup } from '@angular/forms';
import { TranslateService } from '@ngx-translate/core';
import { ConfigurationService } from '@app/core/services/configuration/configuration.service';
import { MultipleAutoCompleteConfiguration } from '@app/library/auto-complete/multiple/multiple-auto-complete-configuration';
import { map, takeUntil } from 'rxjs/operators';
import { Observable } from 'rxjs';
import { ExternalSourcesService } from '@app/core/services/external-sources/external-sources.service';
import { isNullOrUndefined } from 'util';
import { MatDialog } from '@angular/material';
import { DatasetProfileModel } from '@app/core/model/dataset/dataset-profile';
import { DatasetProfileCriteria } from '@app/core/query/dataset-profile/dataset-profile-criteria';
import { DataTableRequest } from '@app/core/model/data-table/data-table-request';
import { DmpService } from '@app/core/services/dmp/dmp.service';
import { DmpProfileDefinition } from '@app/core/model/dmp-profile/dmp-profile';
import { DmpProfileService } from '@app/core/services/dmp/dmp-profile.service';
import { AvailableProfilesComponent } from '../available-profiles/available-profiles.component';
import { DmpEditorModel } from '../dmp-editor.model';
import { Router } from '@angular/router';

@Component({
	selector: 'dataset-info',
	templateUrl: './dataset-info.component.html',
	styleUrls: ['./dataset-info.component.scss']
})
export class DatasetInfoComponent extends BaseComponent implements OnInit {

	@Input() formGroup: FormGroup = null;
	@Input() isUserOwner: boolean;
	@Input() dmp: DmpEditorModel;
	@Input() isPublic: boolean;
	@Input() isFinalized: boolean;
	@Input() isNewVersion: boolean;
	@Input() isClone: boolean;
	@Output() onFormChanged: EventEmitter<any> = new EventEmitter();

	selectedDmpProfileDefinition: DmpProfileDefinition;
	profilesAutoCompleteConfiguration: MultipleAutoCompleteConfiguration;

	constructor(
		private language: TranslateService,
		private configurationService: ConfigurationService,
		private externalSourcesService: ExternalSourcesService,
		private dialog: MatDialog,
		private _service: DmpService,
		private dmpProfileService: DmpProfileService,
		private router: Router
	) {
		super();
	}

	ngOnInit() {
		this.profilesAutoCompleteConfiguration = {
			filterFn: this.filterProfiles.bind(this),
			initialItems: (excludedItems: any[]) => this.filterProfiles('').pipe(map(result => result.filter(resultItem => (excludedItems || []).map(x => x.id).indexOf(resultItem.id) === -1))),
			displayFn: (item) => item['label'],
			titleFn: (item) => item['label'],
			subtitleFn: (item) => item['description']
		};

		if (this.formGroup.get('definition')) { this.selectedDmpProfileDefinition = this.formGroup.get('definition').value; }
		this.registerFormEventsForDmpProfile();

		if (this.isNewVersion) {
			this.formGroup.get('label').disable();
		}

		if (!this.isUserOwner && !this.isClone) {
			this.formGroup.disable();
		}
		if (isNullOrUndefined(this.formGroup.get('extraProperties').get('publicDate').value)) {
			this.formGroup.get('extraProperties').get('publicDate').patchValue(new Date());
		}

		this.formGroup.valueChanges.pipe(takeUntil(this._destroyed))
			.subscribe(x => {
				this.profilesAutoCompleteConfiguration = {
					filterFn: this.filterProfiles.bind(this),
					initialItems: (excludedItems: any[]) => this.filterProfiles('').pipe(map(result => result.filter(resultItem => (excludedItems || []).map(x => x.id).indexOf(resultItem.id) === -1))),
					displayFn: (item) => item['label'],
					titleFn: (item) => item['label'],
					subtitleFn: (item) => item['description']
				};
				this.onFormChanged.emit();
			});
	}

	// Researchers
	filterProfiles(value: string): Observable<DatasetProfileModel[]> {
		const request = new DataTableRequest<DatasetProfileCriteria>(null, null, { fields: ['+label'] });
		const criteria = new DatasetProfileCriteria();
		criteria.like = value;
		request.criteria = criteria;
		return this._service.searchDMPProfiles(request);
	}

	registerFormEventsForDmpProfile(definitionProperties?: DmpProfileDefinition): void {
		this.formGroup.get('profile').valueChanges
			.pipe(
				takeUntil(this._destroyed))
			.subscribe(Option => {
				if (Option instanceof Object) {
					this.selectedDmpProfileDefinition = null;
					this.dmpProfileService.getSingle(Option.id)
						.pipe(takeUntil(this._destroyed))
						.subscribe(result => {
							this.selectedDmpProfileDefinition = result.definition;
						});
				} else {
					this.selectedDmpProfileDefinition = null;
				}
				this.selectedDmpProfileDefinition = definitionProperties;
			})
	}

	availableProfiles(event: MouseEvent) {
		event.stopPropagation();
		const dialogRef = this.dialog.open(AvailableProfilesComponent, {
			data: {
				profiles: this.formGroup.get('profiles')
			}
		});

		return false;
	}

	addDataset(id: String) {
		this.router.navigate(['/datasets/new/' + id]);
	}
}