import { Component, OnInit } from '@angular/core';
import { FormControl } from '@angular/forms';
import { Router } from '@angular/router';
import { Observable } from 'rxjs/internal/Observable';
import { takeUntil } from 'rxjs/operators';
import { JsonSerializer } from '../../common/types/json/json-serializer';
import { BaseComponent } from '../../core/common/base/base.component';
import { RecentActivityType } from '../../core/common/enum/recent-activity-type';
import { DashboardStatisticsModel } from '../../core/model/dashboard/dashboard-statistics-model';
import { SearchBarItem } from '../../core/model/dashboard/search-bar-item';
import { ProjectCriteria } from '../../core/query/project/project-criteria';
import { AuthService } from '../../core/services/auth/auth.service';
import { DashboardService } from '../../core/services/dashboard/dashboard.service';
import { ProjectService } from '../../core/services/project/project.service';
import { SearchBarService } from '../../core/services/search-bar/search-bar.service';
import { UserService } from '../../core/services/user/user.service';
import { SingleAutoCompleteConfiguration } from '../../library/auto-complete/single/single-auto-complete-configuration';
import { RequestItem } from '../../core/query/request-item';

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

	public userInfo: any;
	datasetActivities: any[];
	projectActivities: any[];
	dmpActivities: any[];
	public dashboardStatisticsData: DashboardStatisticsModel;
	public formControl = new FormControl();
	projectAutoCompleteConfiguration: SingleAutoCompleteConfiguration;
	public searchControl = new FormControl();
	filteredOptions: Observable<SearchBarItem[]>;
	recentActivityTypeEnum = RecentActivityType;
	public search = false;

	constructor(
		private router: Router,
		private projectService: ProjectService,
		private dashboardService: DashboardService,
		private searchBarService: SearchBarService,
		private authentication: AuthService,
		private userService: UserService

	) {
		super();
		// this.dashboardStatisticsData.totalDataManagementPlanCount = 0;
		// this.dashboardStatisticsData.totalDataSetCount = 0;
		// this.dashboardStatisticsData.totalProjectCount = 0;
	}


	ngOnInit() {

		if (this.isAuthenticated()) {
			this.userService.getRecentActivity()
				.pipe(takeUntil(this._destroyed))
				.subscribe(response => {
					this.datasetActivities = response['recentDatasetActivities'];
					this.dmpActivities = response['recentDmpActivities'];
					this.projectActivities = response['recentProjectActivities'];
				});
		}

		// this.projectAutoCompleteConfiguration = {
		// 	filterFn: this.searchProject.bind(this),
		// 	items: this.searchProject(''),
		// 	displayFn: (item) => item['label'],
		// 	titleFn: (item) => item['label']
		// };

		if (!this.isAuthenticated()) {
			this.dashboardService.getStatistics()
				.pipe(takeUntil(this._destroyed))
				.subscribe(results => {
					//let data = results['payload'];
					this.dashboardStatisticsData = results;
				});
		} else {
			this.dashboardService.getUserStatistics()
				.pipe(takeUntil(this._destroyed))
				.subscribe(results => {
					this.dashboardStatisticsData = results;
				});
		}

		this.filteredOptions = this.searchControl.valueChanges.flatMap(x => {
			return this.searchBarService.search(x);
		});
	}

	public isAuthenticated(): boolean {
		return !(!this.authentication.current());
	}

	searchProject(query: string) {
		const projectRequestItem: RequestItem<ProjectCriteria> = new RequestItem();
		projectRequestItem.criteria = new ProjectCriteria();
		projectRequestItem.criteria.like = query;
		return this.projectService.getWithExternal(projectRequestItem);
	}

	redirect(id: string, type: RecentActivityType) {
		switch (type) {
			case RecentActivityType.Project: {
				this.router.navigate(['projects/edit/' + id]);
				return;
			}
			case RecentActivityType.Dataset: {
				this.router.navigate(['datasets/edit/' + id]);
				return;
			}
			case RecentActivityType.Dmp: {
				this.router.navigate(['plans/edit/' + id]);
				return;
			}
			default: throw new Error('Unsupported Activity Type ');
		}
	}
}