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| import { DOCUMENT } from '@angular/common';
import { Inject, Injectable, LOCALE_ID, NgZone, Renderer2, RendererFactory2 } from '@angular/core';
import { AngularFirestore, QueryFn } from '@angular/fire/firestore';
import { makeStateKey, TransferState } from '@angular/platform-browser';
import { ParamMap, Router } from '@angular/router';
import { Observable, Subject } from 'rxjs';
import { map, share, startWith, tap } from 'rxjs/operators';
import { routerLinksEN, routerLinksTR } from '../app-config';
import { PageBaseModel, RouterLinksModel } from '../models';
import { AlertService } from './alert.service';
import { CarouselService } from './carousel.service';
import { SeoService } from './seo.service';
/**
* Page Service
*/
@Injectable()
export class PageService {
/** locale */
locale: string;
/** translated router links */
routerLinks: RouterLinksModel;
/** collection of PageBaseModel */
private readonly page$ = new Subject<PageBaseModel>();
/** Renderer2 */
private readonly renderer: Renderer2;
/**
* constructor of PageService
* @param seo: SeoService
* @param carouselService: CarouselService
* @param alert: AlertService
* @param state: TransferState
* @param afs: AngularFirestore
* @param router: Router
* @param ngZone: NgZone
* @param rendererFactory: RendererFactory2
* @param document: DOCUMENT
* @param localeP: LOCALE_ID
*/
constructor(public seo: SeoService,
public carouselService: CarouselService,
private readonly alert: AlertService,
private readonly state: TransferState,
private readonly afs: AngularFirestore,
public router: Router,
private readonly ngZone: NgZone,
private readonly rendererFactory: RendererFactory2,
@Inject(DOCUMENT) private readonly document,
@Inject(LOCALE_ID) private readonly localeP: string) {
this.locale = localeP === 'tr' ? 'tr-TR' : 'en-US'; // TODO: fix for other locales, this is quick fix to force to use with culture codes
this.renderer = rendererFactory.createRenderer(undefined, undefined);
this.routerLinks = this.locale === 'tr-TR' ? routerLinksTR : routerLinksEN;
}
/**
* track content object array by index
* @param index: index no
* @param item: object
*/
trackByIndex(index, item): number {
return index;
}
/**
* get current PageBaseModel
*/
getPage(): Observable<PageBaseModel> {
return this.page$.asObservable()
.pipe(share());
}
/**
* init page html tags and content
* @param page: PageBaseModel
*/
initPage(page: PageBaseModel): void {
this.page$.next(page);
this.seo.setSEOData(page);
this.carouselService.init(page.carousel);
if (page.backgroundCoverImage) {
this.renderer.setStyle(this.document.body, 'background-image', `url(${page.backgroundCoverImage.src})`);
} else {
this.renderer.setStyle(this.document.body, 'background-image', '');
}
}
/**
* get route path of current page; sample: '/articles/1' will return as '/articles'
*/
getRoutePath(): string {
return `/${this.getRoutePathName()}`;
}
/**
* get route path name of current page; sample: '/articles/1' will return as 'articles'
*/
getRoutePathName(): string {
const currentURLParts = this.router.url.trim()
.split('?')[0]
.split('/');
return currentURLParts[1].trim(); // currentURLParts.length is always greater than 1 because it always starts with a '/'
}
/**
* get document from firestore
* @param type: type of page
* @param path: path of document to load from Firestore
*/
getDocumentFromFirestore<T>(type: new() => T, path: string): Observable<T> {
const ssrPageKey = makeStateKey<any>(`ssr_page_${path}`);
const existPage = this.state.get(ssrPageKey, undefined);
return this.afs.doc<T>(path)
.valueChanges()
.pipe(tap(pageItem => {
if (pageItem) {
this.state.set(ssrPageKey, pageItem);
}
}),
existPage ? startWith(existPage) : tap()
)
.pipe(share());
}
/**
* get collection from firestore
* @param path: path of collection to load from Firestore
* @param queryFn: QueryFn
* @param uniqueKey: unique key for TransferState, if path is already unique without order and limit, no need to use this
*/
getCollectionFromFirestore<T>(path: string, queryFn?: QueryFn, uniqueKey?: any): Observable<Array<T>> {
const ssrCollectionKey = makeStateKey<any>(`ssr_collection_${uniqueKey ? uniqueKey : ''}_${path}`);
const existPage = this.state.get(ssrCollectionKey, undefined);
return this.afs.collection<T>(path, queryFn)
.valueChanges()
.pipe(tap(docs => {
this.state.set(ssrCollectionKey, docs);
}),
existPage ? startWith(existPage) : tap()
)
.pipe(share());
}
/**
* get collection of content from firestore
* @param path: path of collection to load from Firestore
* @param queryFn: QueryFn
* @param uniqueKey: unique key for TransferState, if path is already unique without order and limit, no need to use this
*/
getCollectionOfContentFromFirestore<T>(path: string, queryFn?: QueryFn, uniqueKey?: any): Observable<Array<T>> {
const ssrCollectionKey = makeStateKey<any>(`ssr_collection_${uniqueKey ? uniqueKey : ''}_${path}`);
const existPage = this.state.get(ssrCollectionKey, undefined);
return this.afs.collection(path, queryFn)
.snapshotChanges()
.pipe(map(actions =>
actions.map(action => {
const id = action.payload.doc.id;
const data = action.payload.doc.data() as PageBaseModel;
if (!data.hasOwnProperty('contentSummary')) {
data.contentSummary = data.content;
}
return {id, ...data};
})))
.pipe(tap(docs => {
this.state.set(ssrCollectionKey, docs);
}),
existPage ? startWith(existPage) : tap()
)
.pipe(share());
}
/**
* get page from firestore
* @param type: type of page
* @param pathOfCollectionWithoutLocalePart: main collection path of firestore;
* used in: `${pathOfCollectionWithoutLocalePart}_${this.locale}`
* @param pageID: page id on firestore; you can keep undefined, if you want to get pageID from 'router.url'
*/
getPageFromFirestore<T extends PageBaseModel>(type: new() => T,
pathOfCollectionWithoutLocalePart: string,
pageID: string): Observable<T> {
const pageBase$ = this.getDocumentFromFirestore(type, `${pathOfCollectionWithoutLocalePart}_${this.locale}/${pageID}`);
pageBase$.subscribe(page => {
if (page === undefined) {
this.redirectToTranslationOr404(pathOfCollectionWithoutLocalePart, pageID);
} else Eif (page.routePath) {
if (this.router.url.startsWith(page.routePath)) {
this.initPage(page);
} else {
// redirect to origin route path for seo
const languageCode2 = this.locale.substring(0, 2);
this.seo.http301(`/${languageCode2}/${page.routePath}/${pageID}`, true);
}
}
});
return pageBase$;
}
/**
* check to redirect by id param, if redirected a page; true will be returned otherwise false will be returned
* @param pmap: ParamMap
* @param pathOfCollectionWithoutLocalePart: main collection path of firestore;
* used in: `${pathOfCollectionWithoutLocalePart}_${this.locale}`
* @param pathOfListPage: path of list page; sample: '/articles'
* @param pathOfDetailPage: path of detail page; sample: '/article'
*/
checkToRedirectByIDParam(pmap: ParamMap,
pathOfCollectionWithoutLocalePart: string,
pathOfListPage: string,
pathOfDetailPage: string): boolean {
const pID = Number(pmap.get('id'));
if (pID || pID === 0) {
this.afs.collection(`${pathOfCollectionWithoutLocalePart}_${this.locale}`,
ref => ref.where('orderNo', '==', pID)
.limit(1)
)
.snapshotChanges()
.subscribe(data => {
this.ngZone.run(() => {
if (data && data.length > 0) {
data.map(pld => {
const pageItem = pld.payload.doc.data() as PageBaseModel;
this.ngZone.run(() => {
this.router.navigate([pageItem.routePath, pld.payload.doc.id])
.catch(// istanbul ignore next
reason => {
this.alert.error(reason);
});
});
});
} else if (pID === 0) {
this.router.navigate([pathOfListPage])
.catch(// istanbul ignore next
reason => {
this.alert.error(reason);
});
} else {
this.router.navigate([pathOfDetailPage, pID + 1])
.catch(// istanbul ignore next
reason => {
this.alert.error(reason);
});
}
});
});
return true;
}
return false;
}
/**
* check if there is translation by pageID on other locale and redirect to correct pageID by requested locale
* if there is no record on other locale by pageID, page will be redirected to http-404
* @param pathOfCollectionWithoutLocalePart: main collection path of firestore;
* used in: `${pathOfCollectionWithoutLocalePart}_${this.locale}`
* @param pageID: page id on firestore
*/
redirectToTranslationOr404(pathOfCollectionWithoutLocalePart: string, pageID: string): void {
// try to find pageID in other locale
const checkInLocale = this.locale === 'en-US' ? 'tr-TR' : 'en-US';
this.afs.doc<PageBaseModel>(`${pathOfCollectionWithoutLocalePart}_${checkInLocale}/${pageID}`)
.valueChanges()
.subscribe(pageItem => {
if (pageItem) {
// found in other locale
// so try to find requested page in requested locale by i18nKey
this.afs.collection<PageBaseModel>(`${pathOfCollectionWithoutLocalePart}_${this.locale}`,
ref => ref.where('i18nKey', '==', pageItem.i18nKey)
.limit(1)
)
.snapshotChanges()
.subscribe(data => {
if (data && data.length > 0) {
// page in found in requested locale by i18nKey
data.map(pld => {
const id = pld.payload.doc.id;
const requestedPageItem = pld.payload.doc.data();
const languageCode2 = this.locale.substring(0, 2);
this.seo.http301(`/${languageCode2}/${requestedPageItem.routePath}/${id}`, true);
});
} else {
// there is no translation by i18nKey, so redirect to correct locale
const languageCode2 = checkInLocale.substring(0, 2);
this.seo.http301(`/${languageCode2}/${pageItem.routePath}/${pageID}`, true);
}
});
} else {
// not found also in other locale
this.seo.http404();
}
});
}
}
|