import {Component, ElementRef, OnInit, ViewChild} from '@angular/core';
import {ActivatedRoute, Router} from "@angular/router";
import {HelpContentService} from "../../services/help-content.service";
import {
  FormArray,
  UntypedFormArray,
  UntypedFormBuilder,
  UntypedFormGroup,
  ValidatorFn,
  Validators
} from "@angular/forms";
import {Page} from "../../utils/entities/adminTool/page";
import {EnvProperties} from '../../utils/properties/env-properties';
import {HelperFunctions} from "../../utils/HelperFunctions.class";
import {Subscriber} from "rxjs";
import {properties} from "../../../../environments/environment";
import {PortalUtils} from "../portal/portalHelper";
import {AlertModal} from "../../utils/modal/alert";
import {Option} from "../../sharedComponents/input/input.component";
import {Title} from "@angular/platform-browser";
import {ClearCacheService} from "../../services/clear-cache.service";
import {NotificationHandler} from "../../utils/notification-handler";
import {PluginsService} from "../../services/plugins.service";
import {Plugin} from "../../utils/entities/adminTool/plugin";
import {StringUtils} from "../../utils/string-utils.class";
import {Portal} from "../../utils/entities/adminTool/portal";
import {PluginTemplate} from "../../utils/entities/adminTool/pluginTemplate";

@Component({
  selector: 'plugins',
  templateUrl: './plugins.component.html',
})
export class PluginsComponent implements OnInit {
  @ViewChild('editModal') editModal: AlertModal;
  @ViewChild('deleteModal') deleteModal: AlertModal;
  private selectedId: string;
  public checkboxes: {
    plugin: Plugin;
    checked: boolean;
    template:PluginTemplate
  }[] = [];
  public plugins: Plugin[] = [];
  public pluginTemplates: PluginTemplate[] = [];
  public selectedTemplate: PluginTemplate = null;
  public selectedPlugin: Plugin = null;
  public templateForm: UntypedFormGroup;
  public pagesCtrl: UntypedFormArray;
  urlValidator: ValidatorFn = StringUtils.urlValidator;
  private searchText: RegExp = new RegExp('');
  public keyword: string = "";
  public properties: EnvProperties = properties;
  public formPages: Page[] = [];
  public showLoading: boolean = true;
  public filterForm: UntypedFormGroup;
  private subscriptions: any[] = [];
  public allPages: Option[] = [];
  public attrTypeOptions: Option[] = [
    {label:"Text", value:"text"},
    {label:"HTML", value:"HTML"},
    {label:"Boolean", value:"boolean"},
    {label:"URL", value:"URL"},
  ];
  public placementsOptions: Option[] = [
    {label:"Top", value:"top"},
    {label:"Bottom", value:"bottom"},
    {label:"Top Right", value:"top-right"},
    {label:"Center", value:"center"},
    {label:"Right", value:"right"},
    {label:"Left", value:"left"},
  ];
  selectedCommunityPid = null;
  public portalUtils: PortalUtils = new PortalUtils();
  private index: number;
  public portal: string;
  public selectedPageId: string;
  public community: Portal;
  public page: Page;

  constructor(private element: ElementRef, private route: ActivatedRoute, private _router: Router,
              private title: Title,private _helpContentService: HelpContentService,
              private _pluginsService: PluginsService, private _fb: UntypedFormBuilder,
              private _clearCacheService: ClearCacheService) {
  }
  
  ngOnInit() {
    this.title.setTitle('Administrator Dashboard | Classes');
    this.filterForm = this._fb.group({
      keyword: [''],
      type: ['all', Validators.required]
    });
    this.subscriptions.push(this.filterForm.get('keyword').valueChanges.subscribe(value => {
      this.searchText = new RegExp(value, 'i');
      this.applyFilters();
    }));
    this.subscriptions.push(this.filterForm.get('type').valueChanges.subscribe(value => {
      this.applyFilters();
    }));
    this.subscriptions.push(this.route.params.subscribe(params => {
      console.log(params)
      this.portal = (this.route.snapshot.data.portal) ? this.route.snapshot.data.portal : this.route.snapshot.params[this.route.snapshot.data.param];
      this.selectedCommunityPid = params.community;

      this.subscriptions.push(this.route.queryParams.subscribe(params => {
        HelperFunctions.scroll();
        console.log(params)
        // this.selectedCommunityPid = params['communityId'];
        this.selectedPageId = params['pageId'];
        if (this.portal && this.selectedPageId) {
          this.getPage(this.selectedPageId);
        }
        if (!this.selectedPageId) {
          this._router.navigate(['../pages'], {relativeTo: this.route});
        }
      }));
    }));

    
  }
  
  ngOnDestroy(): void {
    this.subscriptions.forEach(value => {
      if (value instanceof Subscriber) {
        value.unsubscribe();
      } else if (value instanceof Function) {
        value();
      }
    });
  }
  getTemplateByCode(code){
    for(let template of this.pluginTemplates){
      if(template.code == code){
        return template;
      }
    }
    return null;
  }
  getPage(pageId: string) {
    this.showLoading = true;
    this.subscriptions.push(this._helpContentService.getPageByPortal(pageId, this.properties.adminToolsAPIURL, this.portal).subscribe(
      page => {
        if (this.properties.adminToolsPortalType != page.portalType) {
          this._router.navigate(['./pageContents']);
        } else {
          this.page = page;
          this.getPlugins();
        }
      },
      error => this.handleError('System error retrieving page', error)));
  }
  getPlugins() {
    this.showLoading = true;
    this.subscriptions.push(this._pluginsService.getPluginTemplatesByPage( this.properties.adminToolsAPIURL,this.selectedCommunityPid, this.selectedPageId).subscribe(
      templates => {
        this.pluginTemplates = templates;

        this.subscriptions.push(this._pluginsService.getPluginsByPage( this.properties.adminToolsAPIURL, this.selectedCommunityPid, this.selectedPageId).subscribe(
          plugins => {
            this.plugins = plugins;
            this.checkboxes = [];

            let self = this;
            this.plugins.forEach(_ => {
              self.checkboxes.push( {plugin: _, checked: false, template:this.getTemplateByCode(_.code)});
            });

            this.showLoading = false;
          },
          error => this.handleError('System error retrieving plugins', error)));

      },
      error => this.handleError('System error retrieving templates', 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);
  }
  
  private deleteFromArray(id: string): void {

      let i = this.plugins.findIndex(_ => _._id == id);
      this.plugins.splice(i, 1);

    this.applyFilters();
  }
  
  public confirmDelete(id: string) {
    this.selectedId = id;
    this.confirmModalOpen();
  }

  
  private confirmModalOpen() {
    this.deleteModal.alertTitle = "Delete Confirmation";
    this.deleteModal.message = "Are you sure you want to delete the selected template(s)?";
    this.deleteModal.okButtonText = "Yes";
    this.deleteModal.open();
  }
  
  public confirmedDelete() {
    this.showLoading = true;
    this.subscriptions.push(this._pluginsService.deletePluginTemplate(this.selectedId, this.properties.adminToolsAPIURL).subscribe(
      _ => {
        this.deleteFromArray(this.selectedId);
        NotificationHandler.rise('Template have been <b>successfully deleted</b>');
        this.showLoading = false;
        this._clearCacheService.clearCache("Template id deleted");
      },
      error => this.handleUpdateError('System error deleting the selected Template', error)
    ));
  }


  public edit(i: number) {
    let plugin:Plugin  = this.checkboxes[i].plugin;
    this.selectedPlugin = plugin;
    this.selectedTemplate = this.checkboxes[i].template;
    this.index = this.plugins.findIndex(value => value._id === plugin._id);
    // this.formPages = <Page[]>plugin.pages;
    this.pagesCtrl = this._fb.array([], Validators.required);
    this.templateForm = this._fb.group({
      _id: this._fb.control(plugin._id),
      page: this._fb.control(plugin.page),
      code: this._fb.control(plugin.code, Validators.required),
      placement: this._fb.control(plugin.placement),
      order: this._fb.control(plugin.order),
      isActive: this._fb.control(plugin.isActive),
      isPriorTo: this._fb.control(plugin.isPriorTo),
      values:this._fb.array([])
    });
    if(plugin.values) {
      for (let attrKey of Object.keys(plugin.values)) {
        (this.templateForm.get("values") as FormArray).push(this._fb.group({
          'key': this._fb.control(attrKey),
          'value': this._fb.control(plugin.values[attrKey])}
        ));
      }
    }
    this.modalOpen("Edit Plugin", "Save Changes");
  }
  
  public newPlugin(template=null) {
    this.selectedPlugin =  null;
    this.selectedTemplate = template;
    if(this.selectedTemplate) {
      if (this.templateForm) {
        this.templateForm.get('portalType').enable();
      }
      this.templateForm = this._fb.group({
        _id: this._fb.control(null),
        page: this._fb.control(this.selectedPageId),
        code: this._fb.control(this.selectedTemplate.code, Validators.required),
        placement: this._fb.control(this.selectedTemplate.placements[0]),
        order: this._fb.control(""),
        isActive: this._fb.control(false),
        isPriorTo: this._fb.control(false),
        values: this._fb.array([])
      });
      // if(plugin.values) {
        for (let attrKey of Object.keys(this.selectedTemplate.attributes)) {
          (this.templateForm.get("values") as FormArray).push(this._fb.group({
           key: this._fb.control(attrKey),
            value: this._fb.control(this.selectedTemplate.attributes[attrKey].value?this.selectedTemplate.attributes[attrKey].value:""),
          }));

        }
      // }
    }else {
      // this.addNewAttr();
      this.modalOpen("Create plugin", "Create");
    }
  }
  
  private modalOpen(title: string, yesBtn: string) {
    this.editModal.okButtonLeft = false;
    this.editModal.alertTitle = title;
    this.editModal.okButtonText = yesBtn;
    this.editModal.open();
  }
  
  public saveConfirmed(data: any) {
    this.showLoading = true;
    let plugin:Plugin = <Plugin>this.templateForm.getRawValue();
    // template.pages = this.pagesCtrl.getRawValue().map(page => page._id?page._id:page);
    plugin.values = new Map<string, string>();
    for (let fields of this.templateForm.getRawValue().values) {
      plugin.values[fields.key]= fields.value;
    }
    let update = plugin._id?true:false;
      this.subscriptions.push(this._pluginsService.savePlugin(plugin, this.properties.adminToolsAPIURL).subscribe(
        saved => {
          this.savedSuccessfully(saved, update );
          NotificationHandler.rise('Plugin <b>' + this.selectedTemplate.name + '</b> has been <b>successfully' + (update?' updated ':' created ') + '</b>');
          this._clearCacheService.clearCache("Plugin id saved");
        },
        error => this.handleUpdateError("System error creating template", error)
      ));
  }
  
  public savedSuccessfully(template: Plugin, update:boolean) {
    if(update){
      this.plugins[this.index] = template;
    }else{
      this.plugins.push(template);
    }
    this.applyFilters();
    this.applyCheck(false);
    this.showLoading = false;
  }

  
  public applyFilters() {
  /*  this.checkboxes = [];
    this.plugins.filter(item => this.filterByType(item)).forEach(
      item => this.checkboxes.push({plugin: item, checked: false})
    );
    this.checkboxes = this.checkboxes.filter(item => this.filter(item.plugin));*/
  }
  


  handleUpdateError(message: string, error = null) {
    if (error) {
      console.log('Server responded: ' + error);
    }
    NotificationHandler.rise(message,'danger');
    this.showLoading = false;
  }
  
  handleError(message: string, error = null) {
    if (error) {
      console.log('Server responded: ' + error);
    }
    NotificationHandler.rise(message,'danger');
    this.showLoading = false;
  }
  
  getPages() {
    this.showLoading = true;
    this.subscriptions.push(this._helpContentService.getAllPages(this.properties.adminToolsAPIURL).subscribe(
      pages => {
        this.allPages = [];
        pages.forEach(page => {
          this.allPages.push({
            label: page.name + " [" + page.portalType + "]",
            value: page
          });
        });
        this.showLoading = false;
      },
      error => this.handleError('System error retrieving pages', error)
    ));
  }

  get attrFormArray(){

    return this.templateForm.get("values") as FormArray;

  }

  attributeTypeChanged(form){
    let type = form.get("value").get("type");
    form.get("value").setValue("");
    if(type == "boolean"){
      form.get("value").setValue(false);
    }
  }
  public getPagesAsString(pageIds): string {

    let pages = [];
    for(let id of pageIds) {
      pages.push(this.allPages.filter(option => option.value._id == id).map((option => option.value.name)));

    }
    return pages.join(", ");
  }
  public getPageById(pageId) {
    for(let option of this.allPages) {
      if(option.value._id == pageId){
        return option.value;
      }
    }
    return pageId;
  }

  getKeys(obj){
    return Object.keys(obj);
  }

}