From c4f5d492b2bd9d41c4c423a3240384c591fdf4f6 Mon Sep 17 00:00:00 2001
From: angelinasu57 <angelinasu57@gmail.com>
Date: Tue, 25 Apr 2023 13:11:45 -0400
Subject: [PATCH] Create deleted post functions, adjusted admin tab to call
 deleted posts.

---
 frontend/src/app/admin/admin.component.html   | 14 ++++++++++++-
 frontend/src/app/admin/admin.component.ts     | 13 +++++++++++-
 frontend/src/app/post.service.ts              | 20 +++++++++++++++++--
 .../src/app/viewforum/viewforum.component.ts  |  8 ++++++++
 4 files changed, 51 insertions(+), 4 deletions(-)

diff --git a/frontend/src/app/admin/admin.component.html b/frontend/src/app/admin/admin.component.html
index 7056472..5501441 100644
--- a/frontend/src/app/admin/admin.component.html
+++ b/frontend/src/app/admin/admin.component.html
@@ -8,4 +8,16 @@
 </nav>
 <mat-tab-nav-panel #tabPanel>
     <router-outlet></router-outlet>
-</mat-tab-nav-panel>
\ No newline at end of file
+</mat-tab-nav-panel>
+<div>
+    <h1>
+        List of Deleted Posts
+    </h1>
+    <div *ngFor="let post of deletedPost$ | async">
+        <div class="forum-user-name"> {{ post.user.first_name}} {{ post.user.last_name}} {{ post.timestamp }}</div>
+          <h1 class="post-body">{{ post.title }}</h1>
+          <h2 class="post-body">{{ post.content }}</h2>
+          <div></div>
+
+    </div>
+</div>
\ No newline at end of file
diff --git a/frontend/src/app/admin/admin.component.ts b/frontend/src/app/admin/admin.component.ts
index 3a28fe3..bc70656 100644
--- a/frontend/src/app/admin/admin.component.ts
+++ b/frontend/src/app/admin/admin.component.ts
@@ -1,6 +1,7 @@
 import { Component, OnInit } from '@angular/core';
 import { Observable } from 'rxjs';
 import { Profile, ProfileService } from '../profile/profile.service';
+import { Post, PostService } from '../post.service';
 
 @Component({
   selector: 'app-admin',
@@ -10,16 +11,26 @@ import { Profile, ProfileService } from '../profile/profile.service';
 export class AdminComponent implements OnInit {
 
   public profile$: Observable<Profile | undefined>;
+  public deletedPost$: Observable<Post []>;
+
 
   public links = [
     { label: 'Users', path: '/admin/users' },
     { label: 'Roles', path: '/admin/roles' },
   ];
 
-  constructor(public profileService: ProfileService) {
+  constructor(
+    public profileService: ProfileService,
+    private postService: PostService,
+    ) {
     this.profile$ = profileService.profile$;
+    this.deletedPost$ = postService.getDeletedPosts();
   }
 
   ngOnInit(): void {}
 
+  showDeletedPosts() {
+    return this.deletedPost$
+  }
+
 }
\ No newline at end of file
diff --git a/frontend/src/app/post.service.ts b/frontend/src/app/post.service.ts
index 14ccf07..ba441f8 100644
--- a/frontend/src/app/post.service.ts
+++ b/frontend/src/app/post.service.ts
@@ -41,9 +41,15 @@ export class PostService {
     constructor(private http: HttpClient) {}
     
     posts: Post[] = [];
+    deletedPosts: Post[] = [];
 
-    getPost() {
-        return this.posts;
+    getPost(id: number) {
+        for (let i = 0; i < this.posts.length; i++) {
+            if (this.posts[i].id == id) {
+                return this.posts[i];
+            }
+        }
+        return throwError(() => new Error("Post not found."));
     }
 
     
@@ -57,6 +63,16 @@ export class PostService {
         );
     }
 
+    getDeletedPosts(): Observable<Post[]>{
+        return this.http.get<Post[]>('/api/post').pipe( // need to fix routing @ warren
+            map((posts: Post[]) => {
+                // Sort the posts in descending order based on timestamp
+                posts.sort((a: Post, b: Post) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime());
+                return posts;
+            })
+        );
+    }
+
     makePost(id: number, title: string, content: string, user: Profile, votes: [], timestamp: string): Observable<Post> {
 
         if ((title.length == 0) && (content.length == 0)) {
diff --git a/frontend/src/app/viewforum/viewforum.component.ts b/frontend/src/app/viewforum/viewforum.component.ts
index 9ddbf70..f9064e7 100644
--- a/frontend/src/app/viewforum/viewforum.component.ts
+++ b/frontend/src/app/viewforum/viewforum.component.ts
@@ -16,10 +16,12 @@ export class viewforumComponent {
   public adminPermission$: Observable<boolean>;
   public post$: Observable<Post[]>;
   public displayPost$: Observable<Post[]>;
+  public deletedPost$: Observable<Post []>
   public itemsPerPage: number = 5; // set the number of items to display per page
   public currentPage: number = 1;
   public numPosts: number;
   public numPages: number;
+  public postCopy: Post; // error since not being read
 
   public static Route = {
     path: 'viewforum',
@@ -29,10 +31,12 @@ export class viewforumComponent {
   constructor(
     private postService: PostService,
     private permission: PermissionService,
+    private postCopy: Post, //error since not being read
     ) {
     this.numPosts = 0; //numPosts and numPages must be set to zero initially
     this.numPages = 0;
     this.post$ = postService.getPosts()
+    this.deletedPost$ = postService.getDeletedPosts()
     this.displayPost$ = this.post$.pipe( //paginating total number of posts
       map((items) => {
         const startIndex = (this.currentPage - 1) * this.itemsPerPage;
@@ -51,6 +55,9 @@ export class viewforumComponent {
 
   onDelete(id: number): void {
     if(confirm("Are you sure you want to delete this post?")) {
+      let postCopy = this.postService.getPost(id); // make a copy of the post to be deleted
+      // this.deletedPost$.push(postCopy); // need to add this deleted post on the array, so we can refer to it later
+
       this.postService
       .deletePost(id)
       .subscribe({ // stopping here when we use the /api/posts + id route)
@@ -62,6 +69,7 @@ export class viewforumComponent {
 
   private onSuccess(): void { // get new posts after deletion
     this.post$ = this.postService.getPosts()
+
     this.displayPost$ = this.post$.pipe(
       map((items) => {
         const startIndex = (this.currentPage - 1) * this.itemsPerPage;