import {Component, OnDestroy, OnInit, ViewChild} from '@angular/core';
import {ActivatedRoute, Router} from '@angular/router';
import {Title} from '@angular/platform-browser';
import {EnvProperties} from '../openaireLibrary/utils/properties/env-properties';

import {ErrorCodes} from '../openaireLibrary/utils/properties/errorCodes';
import {ErrorMessagesComponent} from '../openaireLibrary/utils/errorMessages.component';
import {Stakeholder, Topic} from "../utils/entities/stakeholder";
import {SideBarService} from "../library/sharedComponents/sidebar/sideBar.service";
import {StakeholderService} from "../services/stakeholder.service";
import {HelperFunctions} from "../openaireLibrary/utils/HelperFunctions.class";
import {AlertModal} from "../openaireLibrary/utils/modal/alert";
import {Subscriber} from "rxjs";

declare var UIkit;

@Component({
  selector: 'home',
  templateUrl: './home.component.html',
})
export class HomeComponent implements OnInit, OnDestroy {
  public subscriptions: any[] = [];
  public loading: boolean = true;
  public errorCodes: ErrorCodes;
  public stakeholder: Stakeholder;
  public analysisOpen: boolean = true;
  private errorMessages: ErrorMessagesComponent;
  public copyTopic: Topic;
  public valid = true;
  public element: any;
  public index: number;
  properties: EnvProperties;

  @ViewChild('deleteTopicModal') deleteTopicModal: AlertModal;

  constructor(
    private route: ActivatedRoute,
    private router: Router,
    private title: Title,
    private sideBarService: SideBarService,
    private stakeholderService: StakeholderService) {
    this.errorCodes = new ErrorCodes();
    this.errorMessages = new ErrorMessagesComponent();
  }

  public ngOnInit() {
    this.route.data
      .subscribe((data: { envSpecific: EnvProperties }) => {
        this.properties = data.envSpecific;
        this.subscriptions.push(this.stakeholderService.getStakeholderAsObservable().subscribe(stakeholder => {
          if (stakeholder) {
            this.stakeholder = HelperFunctions.copy(stakeholder);
            this.copyTopic = null;
            this.title.setTitle(stakeholder.index_name);
          }
        }));
      });
  }

  public ngOnDestroy() {
    this.subscriptions.forEach( value => {
      if(value instanceof Subscriber) {
        value.unsubscribe();
      }
    });
  }

  public show(element) {
    UIkit.drop(element).show();
  }

  public hide(element) {
    UIkit.drop(element).hide();
  }

  get open(): boolean {
    return this.sideBarService.open;
  }

  public toggleOpen(event = null) {
    if (!event) {
      this.sideBarService.setOpen(!this.open);
    } else if (event && event['value'] === true) {
      this.sideBarService.setOpen(false);
    }
  }

  public saveTopicOpen(element, index = -1) {
    if(element.className.indexOf('uk-open') !== -1) {
      this.hide(element);
    } else {
      if (index === -1) {
        this.copyTopic = new Topic(null, null, null, true, true);
      } else {
        this.copyTopic = HelperFunctions.copy(this.stakeholder.topics[index]);
      }
      this.show(element);
      this.valid = true;
    }
  }

  public saveTopic(element, index = -1) {
    if(this.copyTopic.name && this.copyTopic.name !== '') {
      if(!this.copyTopic.alias) {
        this.copyTopic.alias = this.copyTopic.name.toLowerCase().trim();
      }
      if(index === -1) {
        this.stakeholder.topics.push(this.copyTopic);
        this.save('Topic has been successfully created', element);
      } else {
        this.stakeholder.topics[index] = HelperFunctions.copy(this.copyTopic);
        this.save('Topic has been successfully saved', element);
      }
    } else {
      this.valid = false;
    }
  }

  public deleteTopicOpen(element, index: number) {
    this.element = element;
    this.index = index;
    this.deleteTopicModal.alertHeader = true;
    this.deleteTopicModal.alertMessage = true;
    this.deleteTopicModal.cancelButton = true;
    this.deleteTopicModal.cancelButtonText = 'No';
    this.deleteTopicModal.okButtonText = 'Yes';
    this.deleteTopicModal.message = 'This topic will permanently be deleted. Are you sure you want to proceed?';
    this.deleteTopicModal.open();
  }

  private save(message: string, element) {
    this.stakeholderService.saveStakeholder(this.properties.monitorServiceAPIURL, this.stakeholder).subscribe(stakeholder => {
      this.stakeholderService.setStakeholder(stakeholder);
      UIkit.notification(message, {
        status: 'success',
        timeout: 3000,
        pos: 'top-left'
      });
      this.hide(element);
    }, error => {
      UIkit.notification(error.error.message, {
        status: 'danger',
        timeout: 3000,
        pos: 'top-left'
      });
      this.hide(element);
    });
  }

  deleteTopic() {
    let path = [
      this.stakeholder.alias,
      this.stakeholder.topics[this.index].alias
    ];
    this.stakeholderService.deleteElement(this.properties.monitorServiceAPIURL, path).subscribe(stakeholder => {
      this.stakeholderService.setStakeholder(stakeholder);
      UIkit.notification('Topic has been successfully deleted', {
        status: 'success',
        timeout: 3000,
        pos: 'top-left'
      });
      this.hide(this.element);
    }, error => {
      UIkit.notification(error.error.message, {
        status: 'danger',
        timeout: 3000,
        pos: 'top-left'
      });
      this.hide(this.element);
    });
  }
}