import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
import { DmpListingModel } from '../../../../core/model/dmp/dmp-listing';
import { MatDialog } from '@angular/material/dialog';
import { DmpInvitationDialogComponent } from '../../invitation/dmp-invitation.component';
import { Router, ActivatedRoute } from '@angular/router';
import { DatasetService } from '../../../../core/services/dataset/dataset.service';
import { AuthService } from '../../../../core/services/auth/auth.service';
import { Principal } from '../../../../core/model/auth/principal';
import { TranslateService } from '@ngx-translate/core';
import { DmpStatus } from '../../../../core/common/enum/dmp-status';
import { EnumUtils } from '@app/core/services/utilities/enum-utils.service';
import { DmpService } from '@app/core/services/dmp/dmp.service';
import { takeUntil } from 'rxjs/operators';
import { BaseComponent } from '@common/base/base.component';
import * as FileSaver from 'file-saver';
import { ConfirmationDialogComponent } from '@common/modules/confirmation-dialog/confirmation-dialog.component';
import { UiNotificationService, SnackBarNotificationLevel } from '@app/core/services/notification/ui-notification-service';
import { Role } from '@app/core/common/enum/role';

@Component({
	selector: 'app-dmp-listing-item-component',
	templateUrl: './dmp-listing-item.component.html',
	styleUrls: ['./dmp-listing-item.component.scss'],
})
export class DmpListingItemComponent extends BaseComponent implements OnInit {

	@Input() dmp: DmpListingModel;
	@Input() showDivider: boolean = true;
	@Input() isPublic: boolean;
	@Output() onClick: EventEmitter<DmpListingModel> = new EventEmitter();

	isDraft: boolean;
	isFinalized: boolean;
	isPublished: boolean;

	constructor(
		private router: Router,
		private dialog: MatDialog,
		private authentication: AuthService,
		public enumUtils: EnumUtils,
		private dmpService: DmpService,
		private language: TranslateService,
		private translate: TranslateService,
		private uiNotificationService: UiNotificationService) {
			super();
		}

	ngOnInit() {
		if (this.dmp.status == DmpStatus.Draft) {
			this.isDraft = true;
			this.isFinalized = false;
			this.isPublished = false;
		}
		else if (this.dmp.status == DmpStatus.Finalized) {
			this.isDraft = false;
			this.isFinalized = true;
			this.isPublished = false;
			if (this.dmp.public == true) { this.isPublished = true }
		}
	}

	openShareDialog(rowId: any, rowName: any) {
		const dialogRef = this.dialog.open(DmpInvitationDialogComponent, {
			// height: '250px',
			// width: '700px',
			restoreFocus: false,
			data: {
				dmpId: rowId,
				dmpName: rowName
			}
		});
	}

	editClicked(dmpId: String) {
		this.router.navigate(['/plans/edit/' + dmpId]);
	}

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

	showDatasets(rowId: String, rowLabel: String) {
		this.router.navigate(['/datasets/dmp/' + rowId, { dmpLabel: rowLabel }]);
	}

	viewVersions(rowId: String, rowLabel: String) {
		this.router.navigate(['/plans/versions/' + rowId], { queryParams: { groupLabel: rowLabel } });
	}

	// itemClicked() {
	// 	this.onClick.emit(this.dmp);
	// }

	// grantClicked(grantId: String) {
	// 	this.router.navigate(['/grants/edit/' + grantId]);
	// }

	// datasetClicked(dmpId: string) {
	// 	this.router.navigate(['/plans/edit/' + dmpId], { queryParams: { tab: "datasetDescriptions" } });
	// }

	roleDisplay(value: any) {
		const principal: Principal = this.authentication.current();
		let role: number;
		if (principal) {
			value.forEach(element => {
				if (principal.id === element.id) {
					role = element.role;
				}
			});
		}
		if (role === 0) {
			return this.translate.instant('DMP-LISTING.OWNER');
		}
		else if (role === 1) {
			return this.translate.instant('DMP-LISTING.MEMBER');
		}
		else {
			return this.translate.instant('DMP-LISTING.OWNER');
		}
	}

	cloneClicked(dmp: DmpListingModel) {
		this.router.navigate(['/plans/clone/' + dmp.id]);
	}

	newVersion(id: String, label: String) {
		this.router.navigate(['/plans/new_version/' + id, { dmpLabel: label }]);
	}

	downloadXml(id: string) {
		this.dmpService.downloadXML(id)
			.pipe(takeUntil(this._destroyed))
			.subscribe(response => {
				const blob = new Blob([response.body], { type: 'application/xml' });
				const filename = this.getFilenameFromContentDispositionHeader(response.headers.get('Content-Disposition'));

				FileSaver.saveAs(blob, filename);
			});
	}

	downloadDocx(id: string) {
		this.dmpService.downloadDocx(id)
			.pipe(takeUntil(this._destroyed))
			.subscribe(response => {
				const blob = new Blob([response.body], { type: 'application/msword' });
				const filename = this.getFilenameFromContentDispositionHeader(response.headers.get('Content-Disposition'));

				FileSaver.saveAs(blob, filename);
			});
	}

	downloadPDF(id: string) {
		this.dmpService.downloadPDF(id)
			.pipe(takeUntil(this._destroyed))
			.subscribe(response => {
				const blob = new Blob([response.body], { type: 'application/pdf' });
				const filename = this.getFilenameFromContentDispositionHeader(response.headers.get('Content-Disposition'));

				FileSaver.saveAs(blob, filename);
			});
	}

	downloadJson(id: string) {
		this.dmpService.downloadJson(id)
			.pipe(takeUntil(this._destroyed))
			.subscribe(response => {
				const blob = new Blob([response.body], { type: 'application/json' });
				const filename = this.getFilenameFromContentDispositionHeader(response.headers.get('Content-Disposition'));
				FileSaver.saveAs(blob, filename);
			})
	}

	getFilenameFromContentDispositionHeader(header: string): string {
		const regex: RegExp = new RegExp(/filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/g);

		const matches = header.match(regex);
		let filename: string;
		for (let i = 0; i < matches.length; i++) {
			const match = matches[i];
			if (match.includes('filename="')) {
				filename = match.substring(10, match.length - 1);
				break;
			} else if (match.includes('filename=')) {
				filename = match.substring(9);
				break;
			}
		}
		return filename;
	}

	deleteClicked(dmp: DmpListingModel) {
		const dialogRef = this.dialog.open(ConfirmationDialogComponent, {
			maxWidth: '300px',
			restoreFocus: false,
			data: {
				message: this.language.instant('GENERAL.CONFIRMATION-DIALOG.DELETE-ITEM'),
				confirmButton: this.language.instant('GENERAL.CONFIRMATION-DIALOG.ACTIONS.DELETE'),
				cancelButton: this.language.instant('GENERAL.CONFIRMATION-DIALOG.ACTIONS.CANCEL'),
				isDeleteConfirmation: true
			}
		});
		dialogRef.afterClosed().pipe(takeUntil(this._destroyed)).subscribe(result => {
			if (result) {
				this.dmpService.delete(dmp.id)
					.pipe(takeUntil(this._destroyed))
					.subscribe(
						complete => { this.onCallbackSuccess() },
						error => this.onDeleteCallbackError(error)
					);
			}
		});
	}

	isDraftDmp(activity: DmpListingModel) {
		return activity.status == DmpStatus.Draft;
	}

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

	onDeleteCallbackError(error) {
		this.uiNotificationService.snackBarNotification(error.error.message ? error.error.message : this.language.instant('GENERAL.SNACK-BAR.UNSUCCESSFUL-DELETE'), SnackBarNotificationLevel.Error);
	}

	isUserOwner(activity: DmpListingModel): boolean {
		const principal: Principal = this.authentication.current();
		if (principal) return principal.id === activity.users.find(x => x.role === Role.Owner).id;
	}
}