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import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormControl, FormGroup } from '@angular/forms';
import { Title } from '@angular/platform-browser';
import { Router } from '@angular/router';
import { Guid } from 'guid-typescript';
import { CommentService } from 'src/app/services/comment.service';
import { PostService } from 'src/app/services/post.service';
import { TokenService } from 'src/app/services/token.service';
import { Post } from 'src/models/post';
import { CloudinaryService } from 'src/app/services/cloudinary.service';
@Component({
selector: 'app-post-page',
templateUrl: './post-page.component.html',
styleUrls: ['./post-page.component.css']
})
export class PostPageComponent implements OnInit {
private _title = 'Post';
public dataArrived = false;
public loggedIn = false;
public editable = false;
public editingPost = false;
public postId: Guid;
public post: Post;
public files: File[];
public editPostFormGroup: FormGroup;
public addCommentFormGroup: FormGroup;
constructor(private _titleService: Title, private _router: Router, private _fb: FormBuilder, private _tokenService: TokenService, private _postService: PostService, private _commentService: CommentService, private _cloudinaryService: CloudinaryService){
this._titleService.setTitle(this._title);
}
ngOnInit(): void {
this.loggedIn = this._tokenService.getTokenFromSessionStorage() !== '';
this.postId = Guid.parse(this._router.url.substring(6));
this.files = [];
// Gets the post and the logged in user and compares them,
// to determine if the current post is made by the user
this._postService.getPostRequest(this.postId).subscribe(
(result: object) => {
this.post = result as Post;
this.post.fileURLs = Object.values(result)[7];
if (this.loggedIn) {
this.editable = this.post.creatorUsername === this._tokenService.getUsernameFromSessionStorageToken();
this.editPostFormGroup.get('newPostMessage')?.setValue(this.post.message);
}
if (this.post.fileURLs.length > 0) {
this.loadFiles();
}
else {
this.dataArrived = true;
}
},
() => {
this._router.navigate(['/not-found']);
}
);
this.editPostFormGroup = this._fb.group({
newPostMessage: new FormControl(''),
fileUpload: new FormControl('')
});
this.addCommentFormGroup = this._fb.group({
newComment: new FormControl('')
});
}
private loadFiles(): void {
for (const fileURL of this.post.fileURLs) {
this._cloudinaryService.getFileRequest(fileURL).subscribe(
(result: object) => {
const file = result as File;
const tmp = {
name: fileURL.match('(?<=\/)(?:.(?!\/))+$')?.pop() ?? 'Attachment'
};
Object.assign(file, tmp);
this.files.push(file);
if (this.files.length === this.post.fileURLs.length) {
this.dataArrived = true;
}
}
);
}
}
backToFeed(): void {
this._router.navigate(['/']);
}
backToProfile(): void {
this._router.navigate(['/profile/' + this._tokenService.getUsernameFromSessionStorageToken()]);
}
toLogin(): void {
this._router.navigate(['/login']);
}
onFileUpload(event: any): void {
this.files.push(...event.target.files);
this.editPostFormGroup.get('fileUpload')?.reset();
}
removeAttachment(fileName: string): void {
this.files = this.files.filter(x => x.name !== fileName);
}
editPost(): void {
if (this._tokenService.getTokenFromSessionStorage() === '') {
this.toLogin();
return;
}
if (this.editingPost) {
const newMessage = this.editPostFormGroup.get('newPostMessage')?.value;
if (newMessage === '' && newMessage !== this.post.message) {
this._postService.putPostWithSessionStorageRequest(this.postId, newMessage, this.files).subscribe(
() => {
this.reloadPage();
}
);
this.dataArrived = false;
}
}
this.editingPost = !this.editingPost;
}
addComment(): void {
if (!this.loggedIn) {
this._router.navigate(['/login']);
return;
}
const newComment = this.addCommentFormGroup.get('newComment')?.value;
if (newComment !== '' && newComment !== null) {
this._commentService.createCommentWithSessionStorageRequest(this.postId, newComment).subscribe(
() => {
this.editPostFormGroup.reset();
this.reloadPage();
}
);
}
}
deletePost(): void {
this._postService.deletePostWithSessionStorage(this.postId).subscribe(
() => {
this._router.navigate(['/profile/' + this._tokenService.getUsernameFromSessionStorageToken()]);
}
);
}
private reloadPage(): void {
this._router.routeReuseStrategy.shouldReuseRoute = () => false;
this._router.onSameUrlNavigation = 'reload';
this._router.navigate([this._router.url]);
}
}
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