1 files changed, 162 insertions, 0 deletions
diff --git a/src/app/components/post-page/post-page.component.ts b/src/app/components/post-page/post-page.component.ts
new file mode 100644
index 0000000..413ff80
--- /dev/null
+++ b/src/app/components/post-page/post-page.component.ts
@@ -0,0 +1,162 @@
+import { HttpErrorResponse } from '@angular/common/http';
+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();
+        }
+        if (this.post.fileURLs.length > 0) {
+          this.loadFiles();
+        }
+        else {
+          this.dataArrived = true;
+        }
+      },
+      (err: HttpErrorResponse) => {
+        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) {
+      let newMessage = this.editPostFormGroup.get('newPostMessage')?.value;
+      if (newMessage === '') {
+        newMessage = this.post.message;
+      }
+      this._postService.putPostWithSessionStorageRequest(this.postId, newMessage, this.files).subscribe(
+        (result: object) => {
+          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(
+        (result: object) => {
+          this.editPostFormGroup.reset();
+          this.reloadPage();
+        }
+      );
+    }
+  }
+
+  deletePost(): void {
+    this._postService.deletePostWithSessionStorage(this.postId).subscribe(
+      (result: object) => {
+        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]);
+  }
+}