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import { Component, OnInit } from '@angular/core';
import { Router } from '@angular/router';
import { UserService } from 'src/app/services/user.service';
import { User } from 'src/models/identity/user.model';
import { AppConstants } from 'src/app/app-constants.module';
import { Location } from '@angular/common';
import { LanguageService } from 'src/app/services/language.service';
import { TechnologyService } from 'src/app/services/technology.service';
import { Post } from 'src/models/post.model';
import { FeedService } from 'src/app/services/feed.service';
import { TokenService } from 'src/app/services/token.service';
import { Title } from '@angular/platform-browser';
import { FriendService } from 'src/app/services/friend.service';
@Component({
selector: 'app-profile',
templateUrl: './profile.component.html',
styleUrls: ['./profile.component.css']
})
export class ProfileComponent implements OnInit {
private _title = 'Profile';
private _urlUsername: string;
private _timeLoaded: string;
private _currentPage: number;
public isTheLoggedInUser = false;
public isUserLoggedIn = false;
public isAdminUser = false;
public dataArrived = false;
public friendOfUser = false;
public user: User;
public userPosts: Post[];
constructor(private _titleService: Title, private _router: Router, private _userService: UserService, private _friendService: FriendService, private _languageService: LanguageService, private _technologyService: TechnologyService, private _feedService: FeedService, private _location: Location, private _tokenService: TokenService) {
this._titleService.setTitle(this._title);
}
ngOnInit(): void {
this._urlUsername = this._router.url.substring(9);
const now = new Date();
now.setHours(now.getHours() + 3); // accounting for eastern europe timezone
this._timeLoaded = now.toISOString();
this._currentPage = 1;
this.user = this._userService.getDefaultUser();
this.userPosts = [];
this._userService.getUserByUsernameRequest(this._urlUsername).subscribe({
next: (res: object) => {
Object.assign(this.user, res);
this.isAdminUser = this.user.roles.map(x => x.name).includes(AppConstants.ADMIN_ROLE_NAME);
this.loadLanguages();
},
error: () => {
this._router.navigate(['/not-found']);
}
});
}
private loadLanguages(): void {
if (this.user.languages.length > 0) {
// When user has languages, get their names and load technologies
this._languageService.getFullLanguagesFromIncomplete(this.user.languages).then(value => {
this.user.languages = value;
this.loadTechnologies();
});
}
else {
this.loadTechnologies();
}
}
private loadTechnologies(): void {
if (this.user.technologies.length > 0) {
// When user has technologies, get their names and then load posts
this._technologyService.getFullTechnologiesFromIncomplete(this.user.technologies).then(value => {
this.user.technologies = value;
this.loadPosts();
});
}
else {
this.loadPosts();
}
}
private loadPosts(): void {
this._feedService.getUserPostsRequest(this.user.userName, this._currentPage++, this._timeLoaded, AppConstants.PAGE_SIZE).subscribe({
next: (result: object) => {
const resultArr: Post[] = Object.values(result)[0];
this.userPosts.push(...resultArr);
this.finishUserLoading();
},
error: () => {
this._currentPage = -1;
this.finishUserLoading();
}
});
}
private finishUserLoading(): void {
if (sessionStorage.getItem('UserCred')) {
this.isUserLoggedIn = true;
const userFromToken: User = this._userService.getDefaultUser();
this._userService.getUserFromSessionStorageRequest().subscribe({
next: (tokenRes: object) => {
Object.assign(userFromToken, tokenRes);
if (userFromToken.friends.map(x => x.userName).includes(this._urlUsername)) {
this.friendOfUser = true;
}
if (userFromToken.userName === this._urlUsername) {
this.isTheLoggedInUser = true;
}
this.dataArrived = true;
},
error: () => {
this.logout();
}
});
}
else {
this.dataArrived = true;
}
}
logout(): void {
this._tokenService.logoutUserFromSessionStorage();
// Reload the page
this._router.routeReuseStrategy.shouldReuseRoute = () => false;
this._router.onSameUrlNavigation = 'reload';
this._router.navigate([this._router.url]);
}
modifyFriend(): void {
this.dataArrived = false;
if (this.friendOfUser) {
this.removeFriendFromLoggedInUser();
}
else {
this.addFriendToLoggedInUser();
}
}
private addFriendToLoggedInUser(): void {
this._friendService.postFriendWithSessionStorageRequest(this.user.userName).subscribe({
next: () => {
this.reloadPage();
},
error: () => {
this._router.navigate(['/']);
}
});
}
private removeFriendFromLoggedInUser(): void {
this._friendService.deleteFriendWithSessionStorageRequest(this.user.userName).subscribe({
next: () => {
this.reloadPage();
},
error: () => {
this._router.navigate(['/']);
}
});
}
onScroll(event: any): void {
// Detects when the element has reached the bottom, thx https://stackoverflow.com/a/50038429/12036073
if (event.target.offsetHeight + event.target.scrollTop >= event.target.scrollHeight && this._currentPage > 0) {
this.loadPosts();
}
}
private reloadPage(): void {
this._router.routeReuseStrategy.shouldReuseRoute = () => false;
this._router.onSameUrlNavigation = 'reload';
this._router.navigate([this._router.url]);
}
}
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