import { Component, ViewChild, ElementRef } from '@angular/core';
import { ActivatedRoute, Router } from "@angular/router";
import { PageContentFormComponent } from "./page-help-content-form.component";
import { PageHelpContent } from "../../utils/entities/adminTool/page-help-content";
import { HelpContentService } from "../../services/help-content.service";
import { EnvProperties } from '../../utils/properties/env-properties';

import {Session} from '../../login/utils/helper.class';
import {LoginErrorCodes} from '../../login/utils/guardHelper.class';
import {HelperFunctions} from "../../utils/HelperFunctions.class";
import {Page} from "../../utils/entities/adminTool/page";

@Component({
    selector: 'new-page-help-content',
    templateUrl: 'new-page-help-content.component.html',
})

export class NewPageHelpContentComponent {

    @ViewChild(PageContentFormComponent)
    public formComponent : PageContentFormComponent;

    //private errorMessage : string = null;

    public communityPid: string;

    public pageId: string;
    public page: Page;

    public properties:EnvProperties = null;

    public showLoading: boolean = true;
    public errorMessage: string = '';
    public updateErrorMessage: string = '';

    constructor(
        private element: ElementRef,
        private route: ActivatedRoute,
        private router: Router,
        private _helpContentService: HelpContentService) {}

    ngOnInit() {
      this.route.data
        .subscribe((data: { envSpecific: EnvProperties }) => {
           this.properties = data.envSpecific;
           this.route.queryParams.subscribe(params => {
             HelperFunctions.scroll();

             this.communityPid = params['communityId'];
             this.pageId = params['pageId'];

             if(this.pageId) {
               this.getPage(this.pageId);
             } else {
               this.showLoading = false;
             }
           });
      });
    }

  private getPage(pageId: string) {
    this._helpContentService.getPage(pageId,this.properties.adminToolsAPIURL).subscribe(
      page => {
        if( (this.communityPid == 'openaire' && !page.openaire)
          || (this.communityPid == 'connect' && !page.connect)
          || (this.communityPid != 'openaire' && this.communityPid != 'connect' && !page.communities)) {
          this.router.navigate(['/pageContents'], { queryParams: { "communityId": this.communityPid} });
        } else {
          this.page = page;
          this.formComponent.setPlacements(this.page);
          this.showLoading = false;
          console.info(this.page);
        }
      },
      error => this.handleError('System error retrieving page with id: '+pageId, error)
    );
  }

  public saveCustom() {
      if(!Session.isLoggedIn()){
        this.router.navigate(['/user-info'], { queryParams: { "errorCode": LoginErrorCodes.NOT_VALID, "redirectUrl":  this.router.url} });
      } else {
        //this.errorMessage = null;

        if(this.formComponent.myForm.valid) {
            this.showLoading = true;
            this.updateErrorMessage = "";

            let pageHelpContent : PageHelpContent = this.formComponent.myForm.value;

            this._helpContentService.savePageHelpContent(pageHelpContent, this.properties.adminToolsAPIURL).subscribe(
                _ => {
                  if(this.pageId) {
                    this.router.navigate( ['/helptexts/'], { queryParams: { "communityId": this.communityPid, "pageId": this.pageId  } } );
                  } else {
                    this.router.navigate(['/helptexts'], { queryParams: { "communityId": this.communityPid} });
                  }
                  this.showLoading = false;
                },
                err => this.handleUpdateError('System error saving page content', err)
            );
        } else {
            this.errorMessage = "Please fill all required fields";
        }
      }
    }

  public cancelCustom() {
      if(this.pageId) {
        this.router.navigate( ['/helptexts/'], { queryParams: { "communityId": this.communityPid, "pageId": this.pageId  } } );
      } else {
        this.router.navigate(['/helptexts'], { queryParams: { "communityId": this.communityPid} } );
      }
  }

  handleUpdateError(message: string, error) {
      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;
  }
}