/**
 * Created by stefania on 7/13/17.
 */
import { Component, ViewChild, OnInit, ElementRef } from '@angular/core';
import { ActivatedRoute, Router } from '@angular/router';
import { HelpContentService } from '../../services/help-content.service';
import { FormGroup } from '@angular/forms';
import { CommunityFormComponent } from './community-form.component';
import { CheckCommunity, Community } from '../../domain/community';
import { EnvProperties } from '../../openaireLibrary/utils/properties/env-properties';

import {Session} from '../../openaireLibrary/login/utils/helper.class';
import {LoginErrorCodes} from '../../openaireLibrary/login/utils/guardHelper.class';
import {HelperFunctions} from "../../openaireLibrary/utils/HelperFunctions.class";
import {Title} from '@angular/platform-browser';

@Component({
    selector: 'communities',
    templateUrl: './communities.component.html',
})

export class CommunitiesComponent implements OnInit {

    // @ViewChild(ModalFormComponent)
    // @ViewChild('saveModal')
    // public modal:ModalFormComponent;
    //
    // @ViewChild('updateModal')
    // public updateModal:ModalFormComponent;

    // @ViewChild('deleteConfirmationModal')
    // public deleteConfirmationModal : DeleteConfirmationDialogComponent;
    @ViewChild('AlertModalSaveCommunity') alertModalSaveCommunity;
    @ViewChild('AlertModalUpdateCommunity') alertModalUpdateCommunity;
    @ViewChild('AlertModalDeleteCommunities') alertModalDeleteCommunities;
    private selectedCommunities: string[] = [];

    @ViewChild(CommunityFormComponent)
    public formComponent: CommunityFormComponent;

    public checkboxes: CheckCommunity[] = [];

    public communities: Community[] = [];

    // public errorMessage: string;

    public formGroup: FormGroup;

    private searchText: RegExp = new RegExp('');
    public  keyword = '';

    public properties: EnvProperties = null;

    public showLoading = true;
    public errorMessage = '';
    public updateErrorMessage = '';
    public modalErrorMessage = '';

    ngOnInit() {
        this.formGroup = this.formComponent.form;

        this.route.data
          .subscribe((data: { envSpecific: EnvProperties }) => {
            HelperFunctions.scroll();
            this.title.setTitle('Administration Dashboard | Communities');
            this.properties = data.envSpecific;
             this.getCommunities();
          });
    }

    constructor(private element: ElementRef, private route: ActivatedRoute,
                private title: Title,
                private _router: Router, private _helpContentService: HelpContentService) {}


    getCommunities() {
      if (!Session.isLoggedIn()) {
        this._router.navigate(['/user-info'], {
            queryParams: { 'errorCode': LoginErrorCodes.NOT_VALID, 'redirectUrl':  this._router.url} });
      } else {
        this.showLoading = true;
        this.updateErrorMessage = '';
        this.errorMessage = '';


        this._helpContentService.getCommunitiesFull( this.properties.adminToolsAPIURL).subscribe(
            communities => {
                this.communities = communities;
                communities.forEach(_ => {
                  this.checkboxes.push(<CheckCommunity>{community : _, checked : false});
                });
                this.showLoading = false;
        },
        error => this.handleError('System error retrieving communities', error));
      }
    }

    // public showModal():void {
    //     this.modal.showModal();
    // }

    public toggleCheckBoxes(event) {
        this.checkboxes.forEach(_ => _.checked = event.target.checked);
    }

    public applyCheck(flag: boolean) {
        this.checkboxes.forEach(_ => _.checked = flag);
    }

    public getSelectedCommunities(): string[] {
        return this.checkboxes.filter(community => community.checked === true).
        map(checkedCommunity => checkedCommunity.community).map(res => res._id);
    }

    private deleteCommunitiesFromArray(ids: string[]): void {
        for (let id of ids) {
            let i = this.checkboxes.findIndex(_ => _.community._id === id);
            this.checkboxes.splice(i, 1);
        }
    }

    public confirmDeleteCommunity(id: string) {
        // this.deleteConfirmationModal.ids = [id];
        // this.deleteConfirmationModal.showModal();
        this.selectedCommunities = [id];
        this.confirmModalOpen();
    }

    public confirmDeleteSelectedCommunities() {
        // this.deleteConfirmationModal.ids = this.getSelectedCommunities();
        // this.deleteConfirmationModal.showModal();
        this.selectedCommunities = this.getSelectedCommunities();
        this.confirmModalOpen();
    }

    private confirmModalOpen() {
      if (!Session.isLoggedIn()) {
        this._router.navigate(['/user-info'], {
            queryParams: { 'errorCode': LoginErrorCodes.NOT_VALID, 'redirectUrl':  this._router.url} });
      } else {
        this.alertModalDeleteCommunities.cancelButton = true;
        this.alertModalDeleteCommunities.okButton = true;
        this.alertModalDeleteCommunities.alertTitle = 'Delete Confirmation';
        this.alertModalDeleteCommunities.message = 'Are you sure you want to delete the selected community(-ies)?';
        this.alertModalDeleteCommunities.okButtonText = 'Yes';
        this.alertModalDeleteCommunities.open();
      }
    }

    public confirmedDeleteCommunities(data: any) {
      if (!Session.isLoggedIn()) {
        this._router.navigate(['/user-info'], {
            queryParams: { 'errorCode': LoginErrorCodes.NOT_VALID, 'redirectUrl':  this._router.url} });
      } else {
        this.showLoading = true;
        this.updateErrorMessage = '';

        this._helpContentService.deleteCommunities(this.selectedCommunities, this.properties.adminToolsAPIURL).
        subscribe(
            _ => {
              this.deleteCommunitiesFromArray(this.selectedCommunities);
              this.showLoading = false;
            },
            error => this.handleUpdateError('System error deleting the selected communities', error)
        );
      }
    }

    public editCommunity(i: number) {
        const community: Community = this.checkboxes[i].community;
        this.formGroup.patchValue(community);
        // this.updateModal.showModal();
        this.modalErrorMessage = '';
        this.communitiesModalOpen(this.alertModalUpdateCommunity, 'Update', 'Update Community');
    }

    public newCommunity() {
        this.formComponent.reset();
        this.modalErrorMessage = '';
        this.communitiesModalOpen(this.alertModalSaveCommunity, 'Save', 'Add a new Community');
    }

    private communitiesModalOpen(modal: any, title: string, yesBtn: string) {
      if (!Session.isLoggedIn()) {
        this._router.navigate(['/user-info'], {
            queryParams: { 'errorCode': LoginErrorCodes.NOT_VALID, 'redirectUrl':  this._router.url} });
      } else {
        modal.cancelButton = true;
        modal.okButton = true;
        modal.alertTitle = title;
        modal.okButtonText = yesBtn;
        modal.open();
      }
    }

    public communitySaveConfirmed(data: any) {
      if (!Session.isLoggedIn()) {
        this._router.navigate(['/user-info'], {
            queryParams: { 'errorCode': LoginErrorCodes.NOT_VALID, 'redirectUrl':  this._router.url} });
      } else {
        if (!this.formGroup.valid) {
          this.communitiesModalOpen(this.alertModalSaveCommunity, 'Save', 'Add a new Community');
          this.modalErrorMessage = 'Please fill in all required fields marked with *';
        } else {
          this.modalErrorMessage = '';
          this._helpContentService.saveCommunity(<Community> this.formGroup.value,
              this.properties.adminToolsAPIURL).subscribe(
              community => {
                this.communitySavedSuccessfully(community);
              },
              error => this.handleUpdateError('System error creating community', error)
          );
        }
      }
    }

    public communityUpdateConfirmed(data: any) {
      if (!Session.isLoggedIn()) {
        this._router.navigate(['/user-info'], {
            queryParams: { 'errorCode': LoginErrorCodes.NOT_VALID, 'redirectUrl':  this._router.url} });
      } else {
        if (!this.formGroup.valid) {
          this.communitiesModalOpen(this.alertModalUpdateCommunity, 'Update', 'Update Community');
          this.modalErrorMessage = 'Please fill in all required fields marked with *';
        } else {
          this._helpContentService.updateCommunity(<Community> this.formGroup.value,
              this.properties.adminToolsAPIURL).subscribe(
              community => {
                this.communityUpdatedSuccessfully(community);
              },
              error => this.handleUpdateError('System error updating community', error)
          );
        }
      }
    }

    public communitySavedSuccessfully(community: Community) {
        this.checkboxes.push(<CheckCommunity>{community : community, checked : false});
        this.applyCheck(false);
    }

    public communityUpdatedSuccessfully(community: Community) {
        this.checkboxes.find(checkItem => checkItem.community._id === community._id).community = community;
        this.applyCheck(false);
    }

    public filterBySearch(text: string) {
        this.searchText = new RegExp(text, 'i');
        this.applyFilter();
    }

    public applyFilter() {
        this.checkboxes = [];
        this.communities.filter(item => this.filterCommunities(item)).forEach(
            _ => this.checkboxes.push(<CheckCommunity>{community: _, checked: false})
        );
    }

    public filterCommunities(community: Community): boolean {
        const textFlag = this.searchText.toString() === '' || (community.name).match(this.searchText) != null;
        return textFlag;
    }

    handleUpdateError(message: string, error) {
        if (error == null) {
            this.formComponent.reset();
        } else {
          this.updateErrorMessage = message;
          console.log('Server responded: ' + error);
        }

        this.showLoading = false;
    }

    handleError(message: string, error) {
        this.errorMessage = message;
        console.log('Server responded: ' + error);

        this.showLoading = false;
    }
}