import { Component, OnInit } from '@angular/core';
import { Observable } from 'rxjs';
import { ValidationErrorModel } from '../../../../common/forms/validation/error-model/validation-error-model';
import { DatasetStatus } from '../../../../core/common/enum/dataset-status';
import { ExternalSourceItemModel } from '../../../../core/model/external-sources/external-source-item';
import { DatasetCriteria } from '../../../../core/query/dataset/dataset-criteria';
import { TagCriteria } from '../../../../core/query/tag/tag-criteria';
import { ExternalSourcesService } from '../../../../core/services/external-sources/external-sources.service';
import { EnumUtils } from '../../../../core/services/utilities/enum-utils.service';
import { RequestItem } from '../../../../core/query/request-item';
import { BaseCriteriaComponent } from '../../../misc/criteria/base-criteria.component';
import { DmpCriteria } from '../../../../core/query/dmp/dmp-criteria';
import { DmpService } from '../../../../core/services/dmp/dmp.service';
import { DataTableRequest } from '../../../../core/model/data-table/data-table-request';
import { DataTableData } from '../../../../core/model/data-table/data-table-data';
import { DmpListingModel } from '../../../../core/model/dmp/dmp-listing';
import { Input } from '@angular/core';
import { MatDialog, MatSnackBar } from '@angular/material';
import { DatasetUploadDialogue } from './dataset-upload-dialogue/dataset-upload-dialogue.component';
import { takeUntil } from 'rxjs/operators';
import { reserveSlots } from '@angular/core/src/render3/instructions';
import { DatasetWizardService } from '../../../../core/services/dataset-wizard/dataset-wizard.service';
import { ViewChild } from '@angular/core';
import { UiNotificationService, SnackBarNotificationLevel } from '../../../../core/services/notification/ui-notification-service';
import { Router } from '@angular/router';
import { TranslateService } from '@ngx-translate/core';
import { FormGroup, FormBuilder, FormControl } from '@angular/forms';
import { MultipleAutoCompleteConfiguration } from '../../../../library/auto-complete/multiple/multiple-auto-complete-configuration';
import { OrganisationCriteria } from '../../../../core/query/organisation/organisation-criteria';
import { OrganisationService } from '../../../../core/services/organisation/organisation.service';
import { ProjectCriteria } from '../../../../core/query/project/project-criteria';
import { ProjectService } from '../../../../core/services/project/project.service';

@Component({
	selector: 'app-dataset-criteria-component',
	templateUrl: './dataset-criteria.component.html',
	styleUrls: ['./dataset-criteria.component.scss']
})
export class DatasetCriteriaComponent extends BaseCriteriaComponent implements OnInit {

	@Input() dmpSearchEnabled;
	public criteria: any;
	public filteringTagsAsync = false;
	public filteredTags: ExternalSourceItemModel[];
	statuses = DatasetStatus;

	options: FormGroup;

	public formGroup = new FormBuilder().group({
		like: new FormControl(),
		dmpIds: new FormControl(),
		projects: new FormControl(),
		status: new FormControl(),
		role: new FormControl(),
		organisations: new FormControl()
	});

	tagsAutoCompleteConfiguration = {
		filterFn: this.filterTags.bind(this),
		initialItems: (excludedItems: any[]) => this.filterTags('').map(result => result.filter(resultItem => excludedItems.map(x => x.id).indexOf(resultItem.id) === -1)),
		displayFn: (item) => item['name'],
		titleFn: (item) => item['name']
	};

	dmpAutoCompleteConfiguration = {
		filterFn: (x, excluded) => this.filterDmps(x).map(x => x.data),
		initialItems: (extraData) => this.filterDmps('').map(x => x.data),
		displayFn: (item) => item['label'],
		titleFn: (item) => item['label']
	};

	projectAutoCompleteConfiguration: MultipleAutoCompleteConfiguration = {
		filterFn: this.filterProject.bind(this),
		initialItems: (excludedItems: any[]) => this.filterProject('').map(result => result.filter(resultItem => excludedItems.map(x => x.id).indexOf(resultItem.id) === -1)),
		displayFn: (item) => item['label'],
		titleFn: (item) => item['label']
	};

	organisationAutoCompleteConfiguration: MultipleAutoCompleteConfiguration = {
		filterFn: this.filterOrganisations.bind(this),
		initialItems: (excludedItems: any[]) => this.filterOrganisations('').map(result => result.filter(resultItem => excludedItems.map(x => x.id).indexOf(resultItem.id) === -1)),
		displayFn: (item) => item['name'],
		titleFn: (item) => item['name']
	}

	constructor(
		private externalSourcesService: ExternalSourcesService,
		public enumUtils: EnumUtils,
		public dmpService: DmpService,
		public datasetWizardService: DatasetWizardService,
		private dialog: MatDialog,
		private snackBar: MatSnackBar,
		private uiNotificationService: UiNotificationService,
		private router: Router,
		private language: TranslateService,
		public projectService: ProjectService,
		private organisationService: OrganisationService,
		fb: FormBuilder
	) {
		super(new ValidationErrorModel());
		// this.options = fb.group({
		// 	status: new FormControl(),
		// 	floatLabel: 'auto',
		// });
	}

	ngOnInit() {
		super.ngOnInit();
		this.formGroup.get('like').valueChanges
			.pipe(takeUntil(this._destroyed))
			.subscribe(x => this.controlModified());
		this.formGroup.get('dmpIds').valueChanges
			.pipe(takeUntil(this._destroyed))
			.subscribe(x => this.controlModified());
		this.formGroup.get('projects').valueChanges
			.pipe(takeUntil(this._destroyed))
			.subscribe(x => this.controlModified());
		this.formGroup.get('status').valueChanges
			.pipe(takeUntil(this._destroyed))
			.subscribe(x => this.controlModified());
		this.formGroup.get('role').valueChanges
			.pipe(takeUntil(this._destroyed))
			.subscribe(x => this.controlModified());
		this.formGroup.get('organisations').valueChanges
			.pipe(takeUntil(this._destroyed))
			.subscribe(x => this.controlModified());
		// if (this.criteria == null) { this.criteria = {}; }
	}

	setCriteria(criteria: DatasetCriteria): void {
		this.formGroup.get('like').patchValue(criteria.like);
		this.formGroup.get('dmpIds').patchValue(criteria.dmpIds);
		this.formGroup.get('projects').patchValue(criteria.projects);
		this.formGroup.get('status').patchValue(criteria.like);
		this.formGroup.get('role').patchValue(criteria.like);
		// this.criteria = criteria;
	}

	controlModified(): void {
		this.clearErrorModel();
		if (this.refreshCallback != null &&
			(this.formGroup.get('like').value == null || this.formGroup.get('like').value.length === 0 || this.formGroup.get('like').value.length > 2)
		) {
			setTimeout(() => this.refreshCallback());
		}
		// if (this.refreshCallback != null &&
		// 	(this.criteria.like == null || this.criteria.like.length === 0 || this.criteria.like.length > 2)
		// ) {
		// 	this.refreshCallback();
		// }
	}

	filterTags(value: string): Observable<ExternalSourceItemModel[]> {
		this.filteredTags = undefined;
		this.filteringTagsAsync = true;

		const requestItem: RequestItem<TagCriteria> = new RequestItem();
		const criteria: TagCriteria = new TagCriteria();
		criteria.like = value;
		requestItem.criteria = criteria;
		return this.externalSourcesService.searchDatasetTags(requestItem);
	}

	filterDmps(value: string): Observable<DataTableData<DmpListingModel>> {
		const fields: Array<string> = new Array<string>();
		fields.push('asc');
		const dmpDataTableRequest: DataTableRequest<DmpCriteria> = new DataTableRequest(0, null, { fields: fields });
		dmpDataTableRequest.criteria = new DmpCriteria();
		dmpDataTableRequest.criteria.like = value;
		return this.dmpService.getPaged(dmpDataTableRequest, "autocomplete");
	}

	filterProject(query: string) {
		const fields: Array<string> = new Array<string>();
		fields.push('asc');
		const projectRequestItem: DataTableRequest<ProjectCriteria> = new DataTableRequest(0, null, { fields: fields });
		projectRequestItem.criteria = new ProjectCriteria();
		projectRequestItem.criteria.like = query;
		return this.projectService.getPaged(projectRequestItem, "autocomplete").map(x => x.data);
	}

	filterOrganisations(value: string) {
		const fields: Array<string> = new Array<string>();
		fields.push('asc');
		const dataTableRequest: DataTableRequest<OrganisationCriteria> = new DataTableRequest(0, null, { fields: fields });
		dataTableRequest.criteria = new OrganisationCriteria();
		dataTableRequest.criteria.labelLike = value;
		return this.organisationService.searchInternalOrganisations(dataTableRequest).map(x => x.data);
	}

	fileImport(event) {
		const dialogRef = this.dialog.open(DatasetUploadDialogue, {
			data: {
				fileList: FileList,
				success: Boolean,
				datasetTitle: String,
				dmpId: String,
				datasetProfileId: String,
				dmpSearchEnabled: this.dmpSearchEnabled,
				criteria: this.criteria
			}
		});
		dialogRef.afterClosed().pipe(takeUntil(this._destroyed)).subscribe(result => {
			if (result && result.success) {
				this.datasetWizardService.uploadXml(result.fileList, result.datasetTitle, result.dmpId, result.datasetProfileId)
					.pipe(takeUntil(this._destroyed))
					.subscribe(
					complete => this.onCallbackSuccess(),
					error => this.onCallbackError(error)
					);
			}
		})
	}

	onCallbackSuccess(): void {
		this.uiNotificationService.snackBarNotification(this.language.instant('DATASET-UPLOAD.SNACK-BAR.SUCCESSFUL-CREATION'), SnackBarNotificationLevel.Success);
		this.router.navigate(['/plans']);
	}

	onCallbackError(error: any) {
		this.uiNotificationService.snackBarNotification(this.language.instant('DATASET-UPLOAD.SNACK-BAR.UNSUCCESSFUL'), SnackBarNotificationLevel.Success);
	}
}